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86results about How to "Good moisture resistance" patented technology

Chip capacitor

A chip capacitor which can be miniaturized with structural stability. In the chip capacitor, a capacitor device has a cathode layer formed on an outer surface thereof and an anode wire is protruded from a portion thereof. A cathode lead is electrically connected to the cathode layer. An anode lead is electrically connected to the anode wire through a weld reinforcement. A molding is configured to cover the capacitor device in such a way that the cathode and anode leads are only partially exposed. Protrusions are protruded from outer surfaces of the cathode and anode leads, respectively, thereby forming steps on the outer surfaces thereof. In the chip capacitor, the leads and molding are bonded with much greater strength, thus more structurally robust. Also, this prevents external moisture from penetrating inside the chip capacitor, thereby significantly enhancing moisture resistance.
Owner:SAMSUNG ELECTRO MECHANICS CO LTD

Laminated ceramic electronic component and method of fabricating the same

There are provided a laminated ceramic electronic component and a method of fabricating the same. The laminated ceramic electronic component include a ceramic body including a dielectric layer; and first and second internal electrodes disposed to face each other, having the dielectric layer interposed therebetween within the ceramic body, wherein the ceramic body includes an active layer that is a capacitance forming part and a cover layer that is a non-capacitance forming part formed on at least one of a top surface and a bottom surface of the active layer, and when a thickness of the ceramic body is t and a thickness of the cover layer is T, T≦t×0.05 is satisfied and when an average particle diameter of a dielectric grain in the active layer is Da and an average particle diameter of a dielectric grain in the cover layer is Dc, 0.7≦Dc / Da≦1.5 is satisfied.
Owner:SAMSUNG ELECTRO MECHANICS CO LTD

Composite acupuncture filter bag used for smoke treatment of ceramic kiln

The invention discloses a composite acupuncture filter bag used for smoke treatment of a ceramic kiln. Short fibers and base fabrics are acupunctured by adopting non-woven acupuncture technology to form a composite acupuncture plain felt, the plain felt is soaked and coated by adopting a surface chemical treatment agent, and then the plain felt is dried and cured at a high temperature and is tailored and sewn to form the filter bag, wherein the base fabrics adopt 30-count alkali-free glass fiber woven fabrics; the short fibers for acupuncture comprise polypropylene fibers, polyphenylene sulfide fibers and 80-count short glass fiber yarns; and the surface chemical treatment agent comprises polytetrafluoroethylene emulsion, polyacrylic ester emulsion, coupling agent, antistatic agent and water. The invention provides the composite acupuncture filter bag used for the smoke treatment of the ceramic kiln, which has the advantages of moisture resistance, good acid corrosion resistance, long service life, high strength of the base fabrics and lower production cost. The problems of poor moisture resistance, poor corrosion resistance, low strength, short service life and high production cost of the filter bag in the prior art are solved. The filter bag is suitable for dust removal and purification treatment for the smoke of the ceramic kiln.
Owner:山东兴国新力环保科技股份有限公司

Ceramic electronic component and glass paste

A ceramic electronic component includes a ceramic body, a glass coating layer, and terminal electrodes. End portions of inner electrodes are exposed at a surface of the ceramic body. The glass coating layer covers portions of the ceramic body in which the inner electrodes are exposed. The terminal electrodes are disposed directly above the glass coating layer and are each constituted by a plating film. The glass coating layer includes a glass medium and metal powder particles that are dispersed in the glass medium and define conductive paths which electrically connect the inner electrodes and the terminal electrodes. The metal powder particles include first metal powder particles and second metal powder particles. The first metal powder particles are flat or substantially flat powder particles. The second metal powder particles are spherical or substantially spherical powder particles.
Owner:MURATA MFG CO LTD

Preparation of red strontium sulphide long afterglow material

The invention discloses a method for preparing a red strontium sulphide long afterglow material, comprising a hydrothermal coprecipitation method which comprises the following steps that: (a) water-solubility strontium salt, water-solubility europium salt, water-solubility dysprosium salt, carbamide and water are weight according to the mol ratio of 1: between 0.01 and 0.05: between 0.01 and 0.05: between 4 and 6: between 28 and 32 and are put inside a container to be stirred and dissolved, the mixture is insulated in a sealing state at a temperature of between 80 and 160 DEG C for 5 to 24 hours so that a precursor is obtained; (b) the precursor is subject to filtering and annealing at a temperature of between 900 and 1200 DEG C in the reaction environment for 0. 5 to 2 hours so that the red strontium sulphide long afterglow material is prepared; the water-solubility strontium salt is strontium nitrate or strontium chloride or strontium acetate, the water-solubility europium salt is europium nitrate, europium chloride or polyimide, the water-solubility dysprosium salt is dysprosium nitrate or dysprosium chloride or dysprosium acetate, and a surface active agent is added according to the mol ratio of the water-solubility strontium salt to the surface active agent of 1: between 0.0001 and 0.0003. The method is widely applied to the fields such as building decoration, traffic transportation, military facilities, fire emergency service and goods for everyday consumption.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Semiconductor Laser Device and a Method for Manufacturing a Semiconductor Laser Device

A semiconductor laser device formed on a semiconductor substrate, the device comprising: a passivation layer arranged on an upper surface of the device structure for resisting moisture ingress, wherein the passivation layer comprises an inner layer deposited on the upper surface of the device by atomic layer deposition and an outer layer deposited on the inner layer, and comprising a material that is inert in the presence of water.
Owner:II VI LASER ENTERPRISE

Method for roasting ultralow-carbon lime in rotary kiln and lime product produced by same

The invention relates to a method for roasting ultralow-carbon lime in a rotary kiln and a lime product produced by the same. The method comprises the following steps: sufficiently roasting limestone at the high temperature of 1010-1050 DEG C for 1.5-2.5 hours under the conditions of coal quantity 6800-7200 kg / hour and fuel charge 6-10 L / hour, cooling, crushing, screening, and adding a surface modifier for passivation, thereby obtaining the lime product. The low-carbon lime has the advantages of favorable moisture resistance, long storage period, low production cost, high purity and high activity, and satisfies the RH furnace refinement decarburization / denitrification technique of high-designation silicon steel, pipeline steel and ultralow-carbon steel.
Owner:TAIYUAN IRON & STEEL GROUP

Preparation method of sizing enhancer

The invention discloses a preparation method of a sizing enhancer. The method is as follows: after cooking and viscosity reduction of starch, introducing nitrogen, cooling to 60-80 DEG C, adding an initiator, and reacting for 10 to 30 minutes; dropwise adding a hydrophobic monomer mixture, a hydrophilic monomer mixture solution, an internal crosslinking monomer solution and an initiator aqueous solution respectively, wherein the dropwise-adding time is controlled to 20 to 90 minutes, and the reaction temperature is controlled at 65 DEG C to 95 DEG C during the time; after the dropwise additionis completed, controlling the temperature at 80 DEG C-95 DEG C for reacting for 10 to 60 minutes, replenishing an initiator, continuing to react at 80 DEG C to 95 DEG C for 30 to 90 minutes, after areactor is free of reflux and the viscosity at 25 DEG C reaches 50 to 500 mPa.s, adding a terminator, cooling, adding an external crosslinking agent, and adjusting the pH to 4 to 6 to obtain the sizing enhancer. The sizing enhancer can be used for in-slurry sizing and surface sizing, and has the advantages such as good reinforcing effect, fast sizing and aging speed, and good resistance to moisture respiration.
Owner:九洲生物技术(苏州)有限公司

Preparation method of damp-proof, breathable and super-hydrophobic activated carbon

A preparation method of damp-proof, breathable and super-hydrophobic activated carbon comprises the steps as follows: an activated carbon sample is placed in a drying oven to be dried for 6-24 h for later use after moisture is fully removed; the pretreated activated carbon and a low-surface-energy substance are added to a vacuum drying oven in the mass ratio being (100-500):1, vacuum pumping is performed, the temperature is adjusted to 60-180 DEG C, and the mixture is kept for 2-24 h; or the pretreated activated carbon is soaked in a solution containing the low-surface-energy substance, the solution is placed in a drying oven at 60-120 DEG C and kept for 2-10 h; the activated carbon subjected to surface modification is taken out, placed in a drying oven at 80-150 DEG C and kept for 0.5-4 h, and the damp-proof, breathable and super-hydrophobic activated carbon can be obtained. The method is simple in process, easy to operate, low in equipment requirement, low in cost and suitable for mass preparation, and a new idea is provided for improving the damp-proof capacity, improving the adsorption performance and prolonging the service life of the activated carbon.
Owner:SOUTHEAST UNIV

Surface coated long persistence phosphor and preparation thereof

The invention relates to surface-covering type long afterglow fluorescent powder and a preparation method thereof. The fluorescent powder used for a nuclear body is alkaline-earth aluminate fluorescent powder; the fluorescent powder has a chemical structural formula of Sr (1-x-y) Al2O4:Eux, Dyy (x is more than or equal to 0.001 and less than or equal to 0.05, y is more than or equal to 0.001 and less than or equal to 0.1), Sr (4-x-y) Al14O25:Eux,Dyy (x is more than or equal to 0.0005 and less than or equal to 0.04, y is more than or equal to 0.0001 and less than or equal to 0.08) or Ca (1-x-y) Al2O4:Eux, Ndy (x is more than or equal to 0.001 and less than or equal to 0.06,y is more than or equal to 0.001and less than or equal to 0.1); and a shell layer is an organic covering layer. The organic surface modification technology is adopted to realize surface organification on the fluorescent powder, remarkably improves the compatibility between the fluorescent powder and an organic medium, and promotes the using property of the fluorescent powder. The method for manufacturing a covering layer on the surface of the fluorescent powder has a simple process and is controllable and easy to popularize and apply.
Owner:JIANGSU BREE OPTRONICS CO LTD

High-grade interior wall paint and preparation method thereof

The invention discloses high-grade interior wall paint and a preparation method thereof, and relates to the technical field of architectural coating. The high-grade interior wall paint is prepared from the following ingredients in parts by weight: 85-95 parts of organic silicon modified styrene-acrylic emulsion, 16-25 parts of kieselguhr, 3-7 parts of nano-zinc oxide, 2-7 parts of anatase titanium dioxide, 4-8 parts of kaolin, 5-10 parts of ground calcium carbonate, 2-5 parts of coalescing agent, 0.5-1.8 parts of water-based flatting agent, 0.2-0.6 part of dispersing agent, 0.4-0.9 part of wetting agent, 0.5-1.5 parts of water-based defoamer, 2.0-3.5 parts of thickening agent, 2.5-5.5 parts of pH modifier, 3-7 parts of sterilizing agent and 20-50 parts of water. The high-grade interior wall paint has the beneficial effects that the high-grade interior wall paint prepared by a special formula and the preparation method is free of irritating odors, non-toxic and harmless, good in thermal insulation effect, strong in adhesive force, high in wash resistance and weather resistance, and good in damp-proof effect; other properties of the high-grade interior wall paint conform to the relevant specifications of China.
Owner:CHONGQING PINSHENG PAINT

Rodenticide

InactiveUS20080260683A1Reduce freshnessReduces palatabilityBiocideDead animal preservationFipronilDecoy
The invention relates to the systemic insecticide fipronil in conjunction with a rodenticide used for manufacture of a bait composition to provide a lethal effect on fleas and / or ticks and a host rodent, following ingestion of the bait composition by the host rodent. Preferred rodenticides are brodifacoum, difethialone, flocoumafen, bromadiolone and mixtures thereof. The invention also relates to rodenticidal bait compositions and to a method of killing ticks and a host rodent by providing for ingestion to the rodent, a bait composition comprising an effective amount of a rodenticide and an acaricidally effective amount of fipronil.
Owner:RECKITT BENCKISER AUSTRALIA +1

Ultra-light fully-closed-cell foamed ceramic with compact surface and low-temperature firing method of ultra-light fully-closed-cell foamed ceramic

The invention discloses ultralight fully-closed-cell foamed ceramic with a compact surface. According to the invention, quartz sand is taken as a main material, calcium carbonate is taken as a foaming agent, borax is taken as a fluxing agent and zinc oxide, albite, potassium feldspar and spodumene are taken as conditioning agents; and a sintering temperature is 740 to 800 DEG C. The invention further discloses a low-temperature firing method of the ultralight fully-closed-cell foamed ceramic. The preparation technology disclosed by the invention has the remarkable advantages of simple process, low sintering temperature, short sintering time and the like, so the manufacturing cost of the method is far lower than the manufacturing cost of existing preparation technology. Besides, different from foamed ceramic prepared in the prior art, the interior of the ultralight fully-closed-cell foamed ceramic with the compact surface is of a porous structure, pores are independent from one another and do not communicate with each other, the surface is continuous and compact and free of pores, the heat preservation and sound insulation effects of the foamed ceramic can be remarkably improved, the foamed ceramic has excellent waterproof and moisture-proof performance, and the reliability of a product is obviously improved.
Owner:YANTAI UNIV

Novel paperboard adhesive and preparation method thereof

The invention relates to a novel paperboard adhesive and a preparation method thereof. The adhesive is composed of the following components in percentage by mass: 75-85% of water, 13-21% of cassava starch, 0.2-1.0% of sodium hydroxide, 0.7-2.0% of reinforcer and 0.2-1.0% of borax. The adhesive has the advantages of high adhesive capacity, favorable compression resistance, favorable moisture resistance and high drying speed, and can enhance the quality of the bonded paperboard and improve the production efficiency. The preparation method of the adhesive is scientific and reasonable, and fully considers the property characteristics of the components. Reasonable steps and processes are adopted to obtain the adhesive with excellent properties.
Owner:昆明市福保彩印包装厂 +2

Dampproof cabinet and its manufacturing method

A moisture-proof cupboard features that its main body is made of the basic plates which may be metallic plates, plastic plates, and concrete slabs, and the artificial marble plates are attached to the visual surfaces of main body for making it more beautiful.
Owner:代建明

Data transmission cable for physically-foamed insulation transponder

The invention provides a data transmission cable for a physically-foamed insulation transponder. The data transmission cable comprises a cable core, an insulating lining, a base sheath, an inner sheath, a double-steel belt armor layer and an outer sheath, wherein the cable core is stranded by two of four insulated single lines; the insulating lining, the base sheath, the inner sheath, the double-steel belt armor layer and the outer sheath are sequentially arranged outside the cable core from inside to outside; discharge copper leads are arranged between the insulating lining and the base sheath; and each insulated single line comprises a copper conductor and a skin-foam-skin physically-foamed insulation structure outside the copper conductor. The cable has the advantages of good moisture-proof function, excellent insulating property and small transmission attenuation. According to an aluminum sheath cable, a layer of inner sheath for longitudinally wrapping the outside of a corrugated single-side aluminum-plastic tape and a single-side aluminum-plastic tape is removed; by properly increasing the thickness of an aluminum layer of the aluminum sheath, the same shielding performance effect is reached; the manufacturing process is effectively reduced; the production efficiency is improved; and the manufacturing cost is reduced.
Owner:江苏通鼎光电科技有限公司

Ceramic green body injection molding machine and molding method thereof

The invention discloses a ceramic green body injection molding machine and a molding method thereof. The ceramic green body injection molding machine comprises a rack, a support, a mechanical arm, a direct pressure mold opening and closing device, a material feeding mechanism, a product conveying belt, a hopper, a molding mold, a plasticizing cylinder, a screw and a plasticizing motor; the support is vertically arranged in the middle of the rack, the molding mold and the direct pressure mold opening and closing device are arranged on the support, the material feeding mechanism is arranged at the bottom of the rack corresponding to the position below the molding mold, the plasticizing cylinder is horizontally arranged on the rack, one end of the plasticizing cylinder is connected with the material feeding mechanism, the other end of the plasticizing cylinder is provided with a hopper mounting base, one end of the screw extends into the plasticizing cylinder through the hopper mounting base, and the other end of the screw is connected with the plasticizing motor. Accordingly, the structural design is exquisite and reasonable, a traditional horizontal type is changed into a vertical type, the production efficiency is greatly improved, the produced product is good in compactness and smoothness, high in mechanical strength, high in humidity-state resistance value, not likely to break and high in product yield, and the production speed and the efficiency are high.
Owner:东莞杰宇机械有限公司

Fire-proof and flame-retardant tent

The invention discloses a fire-proof and flame-retardant tent. The fire-proof and flame-retardant tent is technically characterized by comprising tent cloth, and mesh cloth and ground cloth which are connected to the tent cloth. The fire-proof and flame-retardant tent is characterized in that the tent cloth is made from the following components in parts by weight: 40 to 45 parts of dacron, 5 to 15 parts of glass fibers, 15 to 20 parts of polytetrafluoroethylene fibers, 5 to 15 parts of phosphorus flame retardant, 5 to 10 parts of organic silsesquioxane, 3 to 8 parts of metal chloride, and 3 to 8 parts of polyurethane; the mesh cloth is prepared from the following components in parts by weight: 40 to 45 parts of polyamide, 5 to 10 parts of spandex, 5-15 parts of phosphorus flame retardant, 5 to 10 parts of organic silsesquioxane, and 3 to 8 parts of metal chloride; the ground cloth is prepared from the following components in parts by weight: 40 to 45 parts of polyethylene (PE), 5 to 15 parts of ethylene-vinyl acetate (EVA), 5 to 10 parts of erucyl amide, 5 to 15 parts of phosphorus flame retardant, and 3 to 10 parts of antioxidant. The tent produced through the component setting has a good flame retardant effect, and long-lasting flame-retardant effect.
Owner:CIXI KINGTRA LEISURE PROD

Polybenzobisoxazole polymer containing thiophenic sulfur and preparation method thereof

The invention provides a polybenzobisoxazole polymer containing thiophenic sulfur and a preparation method thereof. The polymer contains a mixed structure of 2,5-thienylbenzobisoxazole section and 1,4-phenylene benzobisoxazole section which is shown in formula I. The polymer has high strength and rigidity, extremely good oxidation resistance, moisture resistance, ultraviolet resistance and insulation and is especially suitable for the production of films and fibre products.
Owner:DALIAN RES & DESIGN INST OF CHEM IND

Flakeboard and manufacturing method thereof

The present invention discloses a particleboard and a production method. The particleboard consists of 65 to 75 weight percent of sawdust or crop straw, 5 to 8 weight percent of carboxymethyl cellulose, 1 to 2 weight percent of white alum, 2 to 4 weight percent of gypsum powder, 4 to 6 weight percent of moisture-resistant agent and 10 to 20 weight percent of water. The particleboard takes carboxymethyl cellulose as adhesive, together with moisture-resistant agent and is drying manufactured after being compressed by manpower or machine. The particleboard of the present invention is nontoxic, odorless, benzene-free, amine-free, formaldehyde-free and radiation-free. The particleboard is a novel environmental protection particleboard and is used for manufacturing various kinds of furniture, doors, windows, and wall sheet and plank stuff. The present invention can be realized by handwork and does not need large-scale heat pressing machine.
Owner:陈家军

Medical equipment transferring storage box having moisture-proof function

The invention discloses a medical equipment transferring storage box having a moisture-proof function. The medical equipment transferring storage box comprises a base; the two sides of the top of thebase are hinged with supporting plates; the two ends of the top of the base are hinged with baffles; two threaded through grooves formed horizontally are formed in the two ends of each of the two baffles; the interiors of the threaded through grooves are in threaded connection with locking screw rods; and penetrable holes formed horizontally are formed in the two ends of one side of each supporting plate. Drying boxes are installed on the two baffles, allochroic silica gel drying agents in the drying boxes can absorb moisture in the medical equipment transferring storage box, and workers can observe colors of the allochroic silica gel drying agents through an observation window and replace the allochroic silica gel drying agents in time, so that the medical equipment transferring storage box has the good moisture-proof function; and bump can be avoided, shake in the medical equipment transferring process can be removed by springs, when the medical equipment transferring storage box istaken out, the locking screw rods are unscrewed, and the supporting plates can be separated with the baffles, so that medical equipment is simple and convenient to fix.
Owner:ZHENGZHOU RENHONG PHARMA CO LTD

Environment-friendly plastic adhesive and preparation method thereof

The invention discloses an environment-friendly plastic adhesive and a preparation method thereof. The adhesive comprises the following components in parts by weight: 5-8 parts of rosin-based hyperbranched epoxy resin, 3-5 parts of epoxidized SBS, 4-7 parts of filler, 12-20 parts of allyl furoate / N-vinyl caprolactam / N-trihydroxymethyl methacrylamide / N-(4-cyano-3-trifluoromethylphenyl)methacrylamide / trifluoroethyl methacrylate copolymer, 3-5 parts of isocyanate group ionized modified 2,5-bis(diethylamino)phenyl-1,3,4-diazole, 0-0.3 part of dibutyltin dilaurate and 70-80 parts of a mixed solvent. The invention also provides a preparation method of the environment-friendly plastic adhesive. The environment-friendly plastic adhesive provided by the invention is high in bonding strength, good in environmental protection property, durability and aging resistance, fast in curing, high in reliability and good in weather resistance and moisture resistance.
Owner:张攸

Surface treatment technology of reel aluminium strip

The invention discloses a surface treatment technology of a reel aluminium strip, comprising the following technological steps of: chemically polishing the aluminium strip; washing the polished aluminium strip; cooling-passivating the washed aluminium strip; washing the passivated aluminium strip; oxidizing the washed aluminium strip; washing the oxidized aluminium strip; passivating the washed aluminium strip secondarily to form a passivation film on the surface of an oxide film; washing the passivated aluminium strip to remove acidizing fluid on the aluminium strip; conducting high-temperature hole-sealing on the washed aluminium strip to seal holes on the oxide film so as to form a protective film on the surface of the aluminium strip; dragging the reel aluminium strip after high-temperature hole-sealing, and reeling the strip to form a finished reel aluminium strip. The invention has the functions of insulation, acid and alkali resistance and ageing resistance. The formed reel aluminium strip can be installed for use after being processed to be an aluminium product in a construction site, therefore, the invention solves the problem of inconvenient transportation when the aluminium strip is subjected to surface treatment after forming the aluminium product in the prior art.
Owner:温贤林

Moisture-resisting and oil-resistant epoxy self-bonding paint for electromagnetic wire and preparation method of epoxy self-bonding paint

The invention discloses moisture-resisting and oil-resistant epoxy self-bonding paint for an electromagnetic wire. The moisture-resisting and oil-resistant epoxy self-bonding paint is characterized by being prepared from raw materials in parts by weight (kilogram) as follows: 12-15 parts of E-42 epoxy resin, 10-12 parts of phenolic resin, 8-10 parts of amino resin, 12-15 parts of nylon 12, 2-3 parts of anilino-methyl-triethoxysilane, 3-4 parts of 1,6-hexanediol diacrylate, 1-2 parts of benzoin, 2-3 parts of zinc oxide, 1-2 parts of polyamide wax, 2-3 parts of dicumyl peroxide, 1-2 parts of coconut oil monoethanolamide, 3-5 parts of an ACR (acrylate copolymer) impact resisting agent, 12-15 parts of aluminum oxide, 7-9 parts of an assistant, 80-90 parts of m, p-cresol and 100-120 parts of dimethylbenzene. The process is simple, the production process is stable and easy to control, and the consistency of finished products is improved substantially; the production process is environment-friendly; the epoxy self-bonding paint prepared with the method has excellent oil resistivity and good moisture resistance, and the temperature classification is improved, so that the service lives of the finished products are prolonged; and the bonding strength and the surface smooth finish of a coated wire are improved due to adding of the coupling agent and the assistant.
Owner:铜陵天河特种电磁线有限公司

Marine cylinder oil compound additive and its production method and marine cylinder oil prepared from marine cylinder oil compound additive

The invention discloses a marine cylinder oil compound additive and its production method and marine cylinder oil prepared from the marine cylinder oil compound additive. The compound additive adopts naphthenate as a main agent. Compared with sulfonate, sulfurized alkyl phenate and salicylate, naphthenate has excellent water resistance, a high acid neutralization speed and good diffusibility. The marine cylinder oil compound additive is a good raw material for production of marine cylinder oil. The naphthenate as a main agent and sulfurized alkyl phenate and salicylate as auxiliary agents display their respective advantages and produce synergism so that the compound additive has good water resistance, diffusibility, a high acid neutralization speed, abrasion resistance and cleanliness. The 70TBN marine cylinder oil prepared from the marine cylinder oil compound additive reaches a foreign reference oil quality level in physical and chemical analysis and simulation assessment.
Owner:XINJIANG KUITUN NEW PETROCHEM

Raw material composition for preparing light-cured resin, light-cured resin prepared from raw material composition and application of light-cured resin

ActiveCN112480324AGood thermal and mechanical propertiesGood moisture resistancePrepolymerPhotoinitiator
The invention discloses a raw material composition for preparing light-cured resin, the light-cured resin prepared from the raw material composition and application of the light-cured resin, and belongs to the field of curable resin synthesis. The raw material composition for preparing the light-cured resin comprises cyanate ester, a photocurable prepolymer, a diluent, a catalyst and a photoinitiator, wherein the photocuring interpenetrating polymer network structure resin is obtained by ultraviolet light curing and thermal curing of the composition. According to the invention, the raw material composition for preparing the light-cured resin has the characteristic of rapid molding of photosensitive resin and the characteristic of excellent heat resistance and moisture resistance of cyanateester; and the photocuring interpenetrating polymer network structure resin is low in viscosity and easy to process, has the advantages of being high in strength, resistant to high temperature, low in shrinkage rate, low in water absorption rate, low in dielectric constant and the like, and can be applied to the fields of 3D printing, coating materials, adhesives, aerospace materials, printed circuit boards, invisible clothes, artificial satellites, flame-retardant materials, electronic packaging and the like.
Owner:FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI

Formaldehyde-free bio-based back plate adhesive for mineral wool sound absorption plate and preparation method

The invention discloses a formaldehyde-free bio-based back plate adhesive for a mineral wool sound absorption plate, which comprises the following components: 20-60 parts of a modified water-soluble acrylic resin, 30-60 parts of a biomass raw material, 30-60 parts of packing, 1-2 parts of a dispersant and 20-50 parts of water. The back plate adhesive disclosed by the invention is good in damp absorption, the dampproof property of a ceiling plate is greatly improved, requirements of the national standard GB / T 25998-2010 can be completely met, the back plate adhesive is free of formaldehyde, a part of bio-based green raw materials are used, requirements of green chemicals can be met, and the back plate adhesive is a green and environment-friendly ceiling plate adhesive.
Owner:JIANGSU AKST NEW MATERIALS CO LTD

Stabilizer for tetrachloroethylene and preparation method of stabilizer

The invention provides a stabilizer for tetrachloroethylene. The stabilizer comprises the following material components: triethanolamine, n-pentane, butylene chlorohydrin, oxybutylene and thymol. The invention further provides a preparation method of the stabilizer. The stabilizer prepared according to the invention is applied to tetrachloroethylene production; after the stabilizer is added in the tetrachloroethylene, the quality indexes of the tetrachloroethylene are as follow: purity 99.9,615-99.9,918%, pH 9.62-9.75, moisture content 16-18 ppm and chrominance 10; and 360 days later, the purity change rate of the tetrachloroethylene is 0-0.038%, the pH change rate of the tetrachloroethylene is 0.1-0.2%, and the moisture content and the chrominance of the tetrachloroethylene do not change. The stabilizer prepared according to the invention is used for tetrachloroethylene, achieves a service life of two years, has good thermal stability and good moisture resistance, and cannot corrode cleaning equipment and workpieces.
Owner:SHANDONG XINLONG TECH
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