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503results about How to "Simple coating process" patented technology

Method and apparatus for coating balloon catheters

A coating apparatus for coating the balloon portion of a balloon catheter is described. The coating apparatus includes a rotatable member in which the catheter portion of the balloon catheter is mounted and fixed, and which causes rotation of the balloon catheter. The apparatus also includes a support member in which the distal tip of the catheter is inserted and free to rotate; and a spray nozzle directing sprayed material on the balloon surface. The inventive configuration of the coating apparatus allows the balloon catheter to be rotated along its axis with insubstantial or no wobble, which significantly improves the quality of the coating applied to the surface of the balloon.
Owner:SURMODICS INC

Super-hydrophobic nanometer transparent coating and preparation method thereof

The invention provides a super-hydrophobic nanometer transparent coating and a preparation method thereof and belongs to the technical field of super-hydrophobic paint. The method includes the steps that firstly, a first category of inorganic nanometer particles are added into an organic solution, and ultrasonic dispersion is performed; secondly, dispersing agents and a second category of inorganic nanometer particles are added, and ultrasonic dispersion is performed so that a dispersion solution can be obtained; crosslinking agents and additives are added in the dispersion solution, ultrasonic dispersion is performed, finally, low-surface energy polymers are added, mixtures are evenly mixed, and transparent and clear super-hydrophobic paint is obtained; the surface of a solid base materials is coated with the transparent and clear super-hydrophobic paint, and the super-hydrophobic nanometer transparent coating is obtained through low-temperature thermal drying and curing. The super-hydrophobic performance of the super-hydrophobic nanometer transparent coating prepared through the method is excellent, the contact angle can be 160 degrees, the rolling angle is 1-7 degrees, the super-hydrophobic nanometer transparent coating can be sprayed to the surfaces of most of common materials, the morphology of the surfaces of the materials are not changed, and the application prospects and the application potency are very wide.
Owner:BEIHANG UNIV

Magnesium alloy non cyanogen plating copper chemical plating nickle and its plating process

The invention discloses a method of plating Nickel with magnalium alloy without cyanogen and the plating technique. The direction for the plating solution is: 20 to 80g.dm-3 of copper charred phosphate; one or several of the 60 to 320g.dm-3 of sodium charred phosphate or Potassium charred phosphate or 60 to 250g.dm-3 of sodium citric acid, 5 to 20g.dm-3 of Potassium sodium tartaric acid, 60 to 250g.dm-3 of HEDP and 60 to 250g.dm-3 of amine ethylene; one or several of the 5 to 20g.dm-3 of hydrogen amine di-fluorin or 5 to20 g.dm-3 sodium fluoride or 5 to 20g.dm-3 of Potassium fluoride or 5 to 20g.dm-3 of lithium fluoride. The plating solution chooses the nickel sulfate or alkali type nickel carbonate or nickel acetic acid as the main salt and adds the reducing agent, combination agent and stabilization agent. The plating technique adopts the acid plating copper-plating three nickel-plating chromium. The invention has little pollution to the environment, high binding power and erosion-proof property.
Owner:GCI SCI & TECH +1

Preparation method of epoxy-modified insulated thermal-conductive high-temperature resistant organosilicon coating and its products

The invention provides a preparation method of an epoxy-modified insulated thermal-conductive high-temperature resistant organosilicon coating, comprising the following steps: preparing raw materials; synthesizing an organosilicon pre-polymer; synthesizing an epoxy-modified organosilicon resin; and preparing the epoxy-modified insulated thermal-conductive high-temperature resistant organosilicon coating. The invention also provided the epoxy-modified insulated thermal-conductive high-temperature resistant organosilicon coating prepared by the method. The coating is composed by the epoxy modified organosilicon resin, fillers, a coupling agent and solvents. The coating prepared by the method in the invention takes account of insulation, thermal-conductivity, and high-temperature resistance at the same time, has coating adhesion of first level, hardness of 5H, a breakdown voltage of 1800V / 0.5mA, 2 seconds, a heat transfer coefficient of larger than 100W / (m<2>.K), and no obviously changed coating at a temperature of 250 DEG C for 24 hours, therefore the coating can be widely used in various industrial equipment and household appliances.
Owner:DONGGUAN HONGDA POLYUREFHANE RESIN +2

Three-dimensionally wrapped packaged LED (Light Emitting Diode) chip

The invention discloses a three-dimensionally wrapped packaged LED (Light Emitting Diode) chip, which is characterized in that six planes of a vertically packaged or inversely packaged single LED chip or series-parallel connected LED chips are coated with fluorescent powder and are fixed by using transparent materials at the periphery, so as to carry out three-dimensional packaging; or a single LED chip or a plurality of series-parallel connected LED chips adopt a vertical or inverse structure and are put into a spherical or tubular shell made of transparent materials; the LED chips are wrapped three-dimensionally by coating a fluorescent powder layer on the inner wall of the shell or mixing the fluorescent powder into the transparent materials; or the LED chips are firstly wrapped by using transparent materials, and subsequently the fluorescent powder is coated on the transparent materials; or the three-dimensional wrapping is carried out by adding a layer of transparent shell material after the coating of the fluorescent powder so as to protect the fluorescent powder. The chip has the beneficial effects that a simplest fluorescent powder wrapping process is adopted so as the make the LED chip emit light in all directions; and in comparison with a traditional single side light emission mode, the loss on light emission of the LED chip is reduced.
Owner:SHANGHAI DANGOO ELECTRONICS TARDING

Modified high-nickel positive electrode material coated with fast ion conductor and preparation method of modified high-nickel positive electrode material

The invention discloses a modified high-nickel positive electrode material coated with a fast ion conductor and a preparation method of the modified high-nickel positive electrode material. The high-nickel positive electrode material comprises a substrate, wherein the substrate is a compound LiNi<1-x-y>Co<x>Mn<y>M<z>O<2> shown in a formula I, in the formula I, x is more than 0 but less than or equal to 0.20, y is more than 0 but less than or equal to 0.20, z is more than 0 but less than or equal to 0.1, and M is arbitrary one or more of elements of Al, Mg, Ti, Zr, Mn, Ni, Sn, Co, Zn, W, Mo, Ru, Ca, Sr, Ba, B, Y, V and Nb. The preparation method comprises the following steps of washing and drying the high-nickel positive electrode material, uniformly mixing the high-nickel positive electrode material and an appropriate amount of coating agent, and performing sintering and sieving to obtain the modified high-nickel positive electrode material coated with the fast ion conductor. The fastion conductor is coated by washing and surface drying methods, the alkali amount of a surface of the positive electrode material is reduced, side reaction of the material and an electrolyte is reduced, and the high-temperature stability and the safety of the material are improved; and by doping and coating the surface with the fast ion conductor, the energy density, the rate performance and the cycle property of the material are improved, and the long cycle lifetime of a battery is finally prolonged.
Owner:NINGBO RONBAY LITHIUM BATTERY MATERIAL CO LTD

Fire resistant anticorrosive paint of organosilicon

The invention discloses an organic silicon fire resistant antiseptic eroding paint, which is characterized by the following: comprising with 15-40% organic silicon resin and hardener, 15-60% thermostable filler, 0. 01-0. 5% dryer, 0. 05-0. 5% additive, 0. 1-5% coupling agent and 1-64% dissolvent; getting the product. This invention possesses simple craft good coating property and strong adhesive force.
Owner:DAQING OILFIELD CO LTD

Water polymer integument and method for preparing integument controlled-release fertilizer thereof

The invention discloses a water-based polymer coated film and a preparation method of a film-coated controlled release fertilizer thereof, which belongs to the agricultural controlled release fertilizer preparation technical field and relates to using a novel water-emulsion type polymer. The polymer film-coated controlled release fertilizer is coating a layer of novel degradable latex polymer film layer on the surface of granular fertilizer. The granular fertilizer with the diameter of 2 to 5mm is packed inside a film coating device of a rotating drum or a fluidized bed, and the granular fertilizer flows inside the film coating device to be heated to 80 DEG C to 100 DEG C. Organic matter is sprayed on the surface of the granular fertilizer, then complex polymer latex is sprayed on the facial surface of the organic matter film layer of the granular fertilizer to be dried continuously, the water of the film layer is removed by complete drying, and the polymer latex film-coated controlled release fertilizer is obtained. The invention conquers the problem that organic solvent leaks to cause the environmental pollution during the process of the production and avoids the problems of solvent recycling; the manufacturing process is easy for realizing the large scale chemical industry production; the investment cost is low; the production cost is reduced greatly.
Owner:吉林省沃野生态环境治理有限公司

Nano-paste, self-cleaning coating liquid and thermal insulating coating liquid as well as transparent substrates and preparation methods thereof

The invention discloses a nano-paste, a self-cleaning coating liquid and a thermal insulating coating liquid as well as transparent substrates and preparation methods thereof. The formula of the nano-paste comprises the following components in parts by weight: 5-25 parts of nano-powder, 1-25 parts of wetting agent, 1-25 parts of active dispersant and 10-200 parts of dispersion medium, wherein the nano-powder is a photocatalyst powder or a thermal insulating powder; the solid content of the nano-powder is 5-50wt%; the particle size distribution of particles in the nano-paste is 10-200 nanometers. The self-cleaning coating liquid and the thermal insulating coating liquid are obtained by firstly preparing stable nano-photocatalyst paste and nano-thermal insulating paste and then compounding the stable nano-photocatalyst paste and nano-thermal insulating paste with film forming matters such as inorganic sol and organic resin. The coating liquids can be applied to the surfaces of different transparent substrates by use of a plurality of different construction methods, so that transparent materials having double functions of self-cleaning and thermal insulation can be obtained; as a result, large-scale preparation of multifunctional transparent coated materials, such as multifunctional coated glass, is realized.
Owner:张扬 +2

Integral catalyst for catalytic combustion of toluol exhaust gas and preparation method thereof

The invention relates to a monolithic catalyst for catalytic combustion of toluene waste gas and a preparation method thereof. The catalyst is composed of a honeycomb ceramic carrier, gamma-Al2O3 coat on the carrier and non-noble metallic Cu / Mn / Ag composite oxide. The catalyst is prepared by the following steps: coating the aluminum sol on the cordierite honeycomb ceramic carrier to produce the gamma-Al2O3 coat after drying and baking, weighing a certain amount of nitrate of Ag, Cu and Mn to prepare the mixed solution, loading the solution on the monolithic carrier which is coated on the active coat by incipient impregnation method and obtaining the monolithic catalyst after drying, baking and other post treatment. The ignition temperature of the catalyst to toluene can be lower than 135 DEG C and the full conversion temperature can be lower than 262 DEG C. Compared with the generally used noble metallic catalyst, not only the monolithic catalyst in the invention has high catalytic activity, but also the effective utilization is high and the cost is greatly lowered by adopting incipient impregnation method for active components loading.
Owner:SOUTHEAST UNIV

Slow-release composite fertilizer

The present invention relates to a slow-release composite fertilizer, which comprises, by weight, 40-60 parts of urea, 10-30 parts of monoammonium phosphate or calcium carbonate, 10-35 parts of potassium chloride or potassium sulfate, 5-30 parts of a pelletizing additive, 3-5 parts of nano-scale chitosan modified attapulgite, 1-2 parts of a nano-scale chitosan film coating agent, and 10-40 parts of a water-retaining agent, wherein the slow-release composite fertilizer further comprises 1-10 parts by weight of water quenching slag. With the present invention, the slow-release composite fertilizer is provided, wherein the slow-release composite fertilizer has the following advantages that: the fertilizer effect release rate can be controlled according to the requirements on nutrients by crops at different growth stages, the nutrients can be provided for the crop growth timely and properly, the fertilizer utilizing rate is high, the film coating material is easy to degrade, the benefit is provided for the environmental protection, and the slow-release composite fertilizer of the present invention is suitable for the field crops.
Owner:王海炜

Compliant polymeric coatings for insertable medical articles

Compliant coatings for insertable medical articles are provided. In some aspects, the coating includes a diene polymer-containing layer, and a second coated layer that includes another polymer. The coating can be formed by coupling the polymer of the second coated layer to the first coated layer via latent reactive groups, such as photoreactive groups. In other aspects, the insertable medical article has a coating that provides different functional features to different surfaces of the article. The medical article can have a cylindrical shape with an interior surface having a first coating, and an exterior surface with a second coating, wherein the article also includes a plurality of openings.
Owner:SURMODICS INC

Seal-coated plastic container for dispensing a pressurized product

A seal coated plastic container for dispensing a pressurized product such as an aerosol or pressurized liquid, gel, or foam. The seal coating is applied to the exterior surface of the plastic container and effectively inhibits migration of non-liquefiable gas propellants and oxygen through the walls of the container. The plastic bottle is composed of a gas permeable polymeric material such as a polyolefin, polyester, or nylon or polycarbonate, and the seal coating is composed of at least one layer of a barrier material which has a low permeability to the non-liquefiable gas used as the propellant, i.e. the seal coating exhibits a high resistance to the passage of the non-liquefiable gas therethrough. The preferred polymeric material for the plastic bottle is polyethylene terephthalate, and the preferred seal coating is an epoxy-amine. The seal coating provides a coating of the barrier material that is about 0.005 to about 0.025 mm thick, but yet can greatly extend the shelf life of pressurized products such as an aerosol.
Owner:SAMSUNG ELECTRONICS CO LTD

Aqueous single-coating matt transferring aluminum-plating paint and preparation method thereof

The invention relates to an aqueous single-coating matt transferring aluminum-plating paint and a preparation method thereof. The paint comprises the following components in parts by weight: 20-70 parts of aqueous resin, 10-70 parts of deionized water, 0.5-2 parts of delustering powder, 5-30 parts of cosolvent, 0-10 parts of pigment, 0-2 parts of pH value regulating agent, 0-0.5 part of wetting agent, 0-0.2 part of flatting agent and 0.05-0.2 part of defoaming agent. Compared with the prior art, the aqueous single-coating matt transferring aluminum-plating paint has the advantages of excellent delustering property, simple production process and the like, and is environmentally-friendly.
Owner:SHANGHAI CHENGYING NEW MATERIALS +1

Full-automatic resin lens coating spraying machine

The invention discloses a full-automatic resin lens coating spraying machine. The full-automatic resin lens coating spraying machine comprises a workbench, and an automatic lens conveying mechanism, a rotation transmission device and a spraying device arranged on the workbench, the automatic lens conveying mechanism comprises a lens conveying device and a lens output device, the outer side of each of the lens conveying device and lens output device is provided with a lens clamp device for connecting with the rotation transmission device, the rotation transmission device runs through a rotating plate device and an adjusting transmission device, the rotating plate device is provided with a gripping device, the spraying device is a spraying barrel located at the bottom end below the gripping device and provided with a vertical displacement device, and the full-automatic lens coating spraying machine is provided with a programmed control system to perform automatic control to finish the lens coating. The lens coating machine combines with spraying liquid to spray the lens, and then the lens is conveyed to an ultraviolet oven or an infrared oven to cure to finish the lens coating; the full-automatic resin lens coating spraying machine is simple in structure, small in volume, simple in coating technique, easy to operate and maintain, high in production efficiency and suitable for most of factories and eyeglasses stores.
Owner:LINHAI CITY RAUL MACHINE

Fast chargeable lithium iron phosphate polymer lithium ion battery with ultra-high magnifications and manufacturing method thereof

The invention relates to a fast chargeable lithium iron phosphate polymer lithium ion battery with ultra-high magnifications and a manufacturing method thereof. A fast chargeable lithium iron phosphate polymer lithium ion battery with ultra-high magnifications does not exist in nowadays. The fast chargeable lithium iron phosphate polymer lithium ion battery with ultra-high magnifications comprisesa positive electrode sheet, a negative electrode sheet, an isolation film and a polyethylene-aluminium compound film, and is characterized in that the positive electrode sheet is made of an positiveelectrode current collector and a positive electrode slurry, the positive electrode slurry comprises the following components by weight percent: 88%-93% of lithium iron phosphate, 0.2%-2.5% of conductive graphite, 1%-5% of carbon nanofibre, 0.1%-0.4% of dispersant and 3.8%-6% of polyvinylidene fluoride; the dispersant is a non-ion surfactant, the solid content of the slurry is 46%-52%, the slurryis uniformly distributed on the upper surface and the lower surface of the positive electrode current collector, and the surface density of the slurry is 15-20 mg / cm<2>. The invention has reasonable structure, stable performance, long service life and functions of the fast charging and the ultra-high magnification.
Owner:HANGZHOU SKYRICH POWER CO LTD

Measuring device and measuring method for film photo-thermal property

The invention discloses a measuring device and measuring method for film photo-thermal property. Based on the original surface thermal lens technology, the modulation frequency of pumping light beams is changed, so that the amplitude of detecting signals and the relationship of phase signals changed along with the frequency can be obtained. The relationship and the calculated result of the theoretical model are compared, and then some important information of the inner part of the film can be obtained. In the invention, not only can the absorption rate of the film be measured, but also the thermal conduction rate of a single-layer film and the deep indexing of some strong absorption impurities can be measured, so that the comprehensive evaluation on the photo-thermal property of the film can be conducted, and greater auxiliary action on the aspects of optimizing film coating process, seeking injury mechanisms and the like can be achieved.
Owner:SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI

Brightening diffusion film and preparation method thereof

The invention relates to the technical field of optical films and in particular relates to a brightening diffusion film and a preparation method thereof. In order to solve the problems that the cost is high and the coating performance is poor because diffusion microbeads on the surface of a conventional diffusion film are large in particle size, the invention provides a brightening diffusion film and a preparation method thereof. The diffusion film comprises a transparent base material, wherein a diffusion layer is arranged on the upper surface of the transparent base material; a protective coating is arranged on the lower surface of the transparent base material; the diffusion layer comprises an adhesive and diffusion particles; the diffusion particles are adhered to the transparent base material through the adhesive; the diffusion particles include large diffusion particles and small diffusion particles; the diffusion particles form bulges on the surface of the diffusion layer; each bulge has the height of 10-200 microns. According to the provided brightening diffusion film, the positive brightness of a backlight module can be improved, and the diffusion film has the advantages of atomizing a light source and reducing the cost; moreover, the preparation method is simple in process and easy to operate.
Owner:NINGBO EXCITON TECH

Coating of particles comprising a pharmaceutically active ingredient with a carbonate salt or phosphate salt

The present invention belongs to the field of pharmaceutical industry and relates to a process for coating a particle comprising a pharmaceutically active ingredient (API) comprising the steps of providing a composition comprising carbonate ions, phosphate ions, or a mixture thereof, providing a particle comprising an API, and precipitating a carbonate salt, a phosphate salt or a mixture thereof onto said particles.The present invention is also directed to a particle comprising an API, wherein the particle is coated with a coating comprising a carbonate salt, phosphate salt, or mixture thereof, and to a pharmaceutical composition comprising said particles.Moreover, the present invention is also directed to the use of said particles for preparing a medicament,
Owner:LEK PHARMA D D

Photo-cured medical catheter hydrophilic lubrication coating and preparation method thereof

The invention discloses a photo-cured medical catheter hydrophilic lubrication coating and a preparation method thereof. The hydrophilic lubrication coating comprises a bottom coating and a lubrication coating, wherein the bottom coating is attached to the surface of an instrument, and the lubrication coating is attached to the bottom coating. The bottom coating comprises 1-10 parts of polyester acrylate, 50-90 parts of solvents, 0.5-5 parts of photoinitiators, 0.5-2 parts of wetting agents and 0.5-5 parts of reactive diluents; the lubrication coating comprises 1-10 parts of water soluble macromolecules, 1-5 parts of crosslinking macromolecules, 0-1 part of photoinitiators, 0.1-1 part of surfactants and 50-98 parts of mixed solvents. The preparation method of the hydrophilic lubrication coating is simple and easy in operation, substance residues caused by complicated high-temperature chemical reaction are avoided, the cured coating forms a crosslinking structure, has good adhesion on the surface of a medical catheter and has excellent and lasting lubricity in an aqueous medium, the friction coefficient of the surface of the medical catheter is reduced, and harm to human tissues andadhesion of macromolecules in blood are decreased.
Owner:ORBUSNEICH MEDICAL SHENZHEN CO LTD

Lithium ion battery anode material and manufacturing method thereof

InactiveCN102637877AUniform particle sizeHas a layered crystal structureCell electrodesPhosphateManganese
The invention discloses a lithium ion battery anode material and a manufacturing method of the lithium ion battery anode material. The anode material is cobalt nickel oxide manganese with a layer structure and has the chemical composition of LiNil-x-yCoxMnyO2, wherein x is equal to and larger than 0.15 and is equal to and less than 0.3, and y is equal to and larger than 0.2 and is equal to and less than 0.4. The manufacturing method provided by the invention has the following steps: the cobalt nickel oxide manganese powder is manufactured through a coprecipitation method, metal phosphate is adopted as a cladding material with the cladding quantity as 0.5-1.5% of the anode material; and the cobalt nickel oxide manganese is externally cladded by zinc phosphate through fluidization. The cladded battery material after modification with the manufacturing method has high special capacity and has good cycling stability at high temperature.
Owner:KUNMING UNIV OF SCI & TECH

Surface modification of functional group-containing medical devices with catalyst-containing reactive polymer system

Surface modified medical devices such as intraocular lens implants formed from one or more functional group-containing materials using reactive, hydrophilic polymers with catalyst functionality for the purpose of reducing or eliminating lens epithelial cell growth thereon, reducing or eliminating silicone oil absorption upon subsequent surgical exposure and / or reducing implantation inserter friction is provided herein. Additionally, a method of making and using surface modified intraocular lens implants is provided.
Owner:BAUSCH & LOMB INC

Cationic organosilicon modified waterborne PUA fabric coating adhesive with self crosslinking structure and preparation method thereof

The present invention discloses a preparation method of a cationic organosilicon modified waterborne PUA fabric coating adhesive with a self crosslinking structure, the method is as follows:(1)using polyisocyanate and hydroxyl-terminated polysiloxane for synthesis of an-NCO-group-terminated prepolymer;(2)adding polyether or polyester glycol for reaction;(3)reacting with a cationic hydrophilic chain extender for a period of time, and further reacting with adipic dihydrazide(ADH)to obtain a hydrazine-terminated cationic waterborne polyurethane emulsion;(4)using acrylate monomers and diacetone acrylamide(DAAM)for preparing a hydrazide-group-containing polyacrylate emulsion; and(5)mixing the hydrazine-terminated cationic waterborne polyurethane emulsion and the hydrazide-group-containing polyacrylate emulsion in a certain proportion to obtain the self-crosslinking cationic organosilicon modified waterborne PUA fabric coating adhesive. The self-crosslinking cationic organosilicon modified waterborne PUA fabric coating adhesive avoids the use of a harmful crosslinking agent, has the advantages of being environmental-friendly, high in water pressure resistance, good in mechanical properties, low in cost, and dyeable and the like, and can be used for coating finishing of nylon fabrics.
Owner:WUYI UNIV

Enveloping process for micro-capsule animal medicament

The invention relates to the field of processing of animal medicaments, in particular to an enveloping process for a micro-capsule animal medicament. The enveloping process for the micro-capsule animal medicament comprises the following steps of: weighing materials; preparing soft materials; granulating by extruding and rolling; drying with a fluidized bed; coating; polishing; drying with the fluidized bed; sieving; detecting a product and the like to prepare the micro-capsule animal medicament. Compared with a fluidized bed liquid atomizing enveloping process, the enveloping process related to be invention has the most outstanding advantages of high production efficiency, simple product enveloping process, difficulty in causing the phenomenon of sticking, reduction in the energy consumption of a unit product by over 60 percent, capability of meeting the practical requirements of the animal medicament on large production amount and low production cost and contribution to wide popularization and application of the micro-capsule animal medicament.
Owner:GUANGDONG WENS DAHUANONG BIOTECH +1

Coating Apparatus and Coating Method

The invention is a coating apparatus including: a substrate-holding part that holds a substrate horizontally; a chemical nozzle that supplies a chemical to a central portion of the substrate horizontally held by the substrate-holding part; a rotation mechanism that causes the substrate-holding part to rotate in order to spread out the chemical on a surface of the substrate by a centrifugal force, for coating the whole surface with the chemical; a gas-flow-forming unit that forms a down flow of an atmospheric gas on the surface of the substrate horizontally held by the substrate-holding part; a gas-discharging unit that discharges an atmosphere around the substrate; and a gas nozzle that supplies a laminar-flow-forming gas to the surface of the substrate, the laminar-flow-forming gas having a coefficient of kinematic viscosity larger than that of the atmospheric gas; wherein the atmospheric gas or the laminar-flow-forming gas are supplied to the central portion of the substrate.
Owner:TOKYO ELECTRON LTD

Recoating type universal epoxy anticorrosive paint for achieving four-season constructions with single curing agent

The invention discloses a recoating type universal epoxy anticorrosive paint for achieving four-season constructions with a single curing agent. A low molecular weight bisphenol A epoxy resin is usedas a resin base, a solvent system of an reactive diluent with branched chains, such as a glycidyl ether type reactive diluent, is introduced into the formulation to form an effective steric effect andprolong the usable life of a product after mixing, and after a coating layer is formed, the curing speed is not influenced, so the construction at the environment temperature of between 10 DEG C below zero and 40 DEG C is achieved, and the problem of the four-season constructions is solved by using one curing agent. A nano anticorrosive pigment, a phenolic amine curing agent, an adhesion promoter, adjusting PVC and a proper amount of dimming powder are selected, and the coating layer is ensured to contain a proper amount of polar groups so that the product has good cathodic disbonding resistance and can be matched with various types of finishing paints. The recoating type universal epoxy anticorrosive paint can be used as an anticorrosive primer for a plurality of positions from a ship bottom to a hull, and has very significant functions of improving the efficiency and the benefit of ship painting.
Owner:XIAMEN SUNRUI SHIP COATING

Slow/controlled-release compound fertilizer suitable for field crops

The invention discloses a slow / controlled-release compound fertilizer suitable for field crops, which belongs to a mixed fertilizer capable of controlling the release rate of nutrient components. A preparation method for the compound fertilizer is characterized by comprising two key processes of melting granulation and tumbling coating, namely preparing internal slow-release compound fertilizer granules by melting granulation and then obtaining the slow / controlled-release compound fertilizer by irregular granule speed change and tumbling coating. The slow / controlled-release compound fertilizer comprises the following raw materials in percentage by weight: 35 to 65 percent of urea, 9 to 36 percent of monoammonium phosphate or triple superphosphate, 8 to 40 percent of potassium chloride or potassium sulfate, 1 to 38 percent of granulation accessories, 3 to 5 percent of nano chitosan modified attapulgite and 1 to 2 percent of nano chitosan coating agent. The slow / controlled-release compound fertilizer suitable to be applied to the field crops can control the release rate of the fertilizer effect according to the requirements of different stages of crop growth for nutrients, duly and properly provides the nutrients for the growth of the crops, has high utilization rate, facilitates the degrading of a coating material, and is favorable for environmental protection.
Owner:山东金沂蒙生态肥业有限公司

Self-cleaning superhard polysilazane hydrophobic coating and preparation and use method thereof

The invention discloses a self-cleaning superhard polysilazane hydrophobic coating and a preparation and use method thereof, and belongs to the technical field of super-hydrophobic coatings. The self-cleaning superhard polysilazane hydrophobic coating is prepared from the following components in parts by weight: 5 to 25 parts of organic-inorganic hybridized polysilazane, 15 to 30 parts of hydrophobic acrylate resin, 5 to 15 parts of nanometer silicon dixoide and 40 to 250 parts of organic solvent. The self-cleaning superhard polysilazane hydrophobic coating has the advantages that the excellent superhard, super-hydrophobic, scratch-resistant, abrasion-resistant and high-adhesion properties of a coating are realized; the defects of easiness in cracks, voids and the like in the inorganic polysilazane coating along with the increase of coating thickness are overcome; the problem of low hardness of the organic polysilazane is solved; the coating has the advantages that the hardness is high, the adhesion force is high, the easiness in falling and cracking of the coating is avoided, and the abrasion-resistant and scratch-resistant properties of the coating are ensured; the preparation technology is simple, the implementing is easy, and the preparation technology is suitable for widely popularized and applied.
Owner:BEIJING NEATRITION TECH CO LTD

Heatproof anticorrosion wear resistant powdery paint, preparation method and application

The invention relates to a heatproof anticorrosion wear resistant powdery paint, a preparation method and an application. The powdery paint comprises the following raw materials by weight: 80-100 parts of phenol novolac epoxy, 25-35 parts of bisphenol A-epoxy resin matrix, 4.0-5.5 parts of dicyandiamide, 80-120 parts of cast stone powder, 10-40 partsof polypropylene, 5-8 parts of graphite, 5-8 parts of component A, 2-5 parts of aluminum hydroxide, 1-3 parts of magnesium oxide, 5-7 parts of ethyl lactate, 1-3 parts of polyvinyl butyral, 5-8 parts of copper oxide, 1-5 parts of carbon nanotube, 0.1-2 parts of 2,4,5-trichlorobenzene sulfonate, 0.2-1 part of potassium perfluorobutanesulfonate and 0.1-0.4 parts of phenylsulfonyl benzene sulfonic acid potassium. According to the invention, phenol novolac epoxy is taken as a base, the bisphenol A-epoxy resin matrix is added, the carbon nanotube is added in the anticorrosion paint, the heatproof and anticorrosion performances of the paint can be enhanced, and the coating process is simple.
Owner:BEIJING SINOPERM TECH
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