116results about How to "Moderate flexibility" patented technology

The present invention relates to a high refraction and high adhesion large power LED packaging organosilicon material and a chemical synthesis method thereof. The organosilicon packaging material is prepared by carrying out mixing matching on a component A and a component B according to a mass ratio of 1:1, wherein the component A comprises vinyl phenyl polysiloxane, vinyl phenyl silicone oil, a platinum-containing polysiloxane catalyst and a tackifier, the component B comprises hydrogen-containing phenyl polysiloxane, dihydrideterminated phenyl polysiloxane, vinyl phenyl polysiloxane and an inhibitor, the tackifier is prepared by carrying out addition on isocyanate, methoxy silane and epoxy silane, and provides strong adhesion for PPA and a silver surface, the curing agent is prepared by compounding hydrogen-containing phenyl polysiloxane and dihydrideterminated phenyl polysiloxane, and a compounding mass ratio is preferably 4:1-2, such that the packaging material has moderate hardness and flexibility after curing so as to effectively solve contradiction of strength and cracking of the cured adhesive. With the present invention, the organosilicon packaging material with characteristics of refraction of 1.54, suitability for industrialization and fully meeting of large power LED packaging requirements can be obtained.

The invention provides a casting polypropylene (CPP) membrane for paper packaging. The membrane is characterized by comprising a corona layer, an intermediate layer and an inner layer, wherein the corona layer comprises 98 to 99.5 weight percent of terpolymerization polypropylene and 0.5 to 2 weight percent of slip agent; the intermediate layer is homo-polymerization polypropylene; and the inner layer comprises 98 to 99.4 weight percent of binary polymerization polypropylene and 0.5 to 2 weight percent of slip agent. The invention also provides a preparation method of the membrane. Both surfaces of the CPP membrane for paper have high heat-seal performance, and high printing adaptability and moderate flexibility.

A hardcoat layer is a cured layer comprising a curable resin-precursor, a thermoplastic resin, and a fine particle having an average primary particle size of 1 to 100 nm, and the hardcoat layer is formed on at least one side of a transparent film. The thermoplastic resin may be a thermoplastic resin (particularly, a cellulose derivative) nonreactive to the curable resin-precursor. The ratio of the metal oxide fine particle is about 0.5 to 4 parts by weight relative to 100 parts by weight of the curable resin-precursor. The metal oxide fine particle may comprise at least one fine particle selected from the group consisting of antimony tin oxide, tin oxide, and zinc oxide. The curable resin-precursor may comprise a tetra- or more-functional precursor. The optical film of the present invention has excellent anti-glareness or anti-Newton-ring property and also has excellent abrasion resistance and mechanical properties.

The invention relates to a hyperbranched polyester lithium ion battery gel electrolyte and a preparation method thereof. The gel electrolyte is formed by mixed liquor prepared from 5-30 percent by mass of hyperbranched photopolymer resin, 5-25 percent by mass of cross-linking agent, 1-10 percent by mass of initiator, 20-50 percent by mass of plasticizer, 20-50 percent by mass of lithium salt and the like by using a radiation crosslinking method or a heating crosslinking method and the like. In the invention, the hyperbranched structure of a hyperbranched polyester can effectively prevent chain segments from being crystallized, whereas the molecular conformation similar to a spheric shape can increase the free volume of the polyester; bigger space and fewer -COO- and ether bond structures among branch points of the hyperbranched polyester have very strong interreaction with oxygen in the carbonic ester plasticizer, and therefore, a large amount of liquid electrolyte can be contained, and the gel electrolyte has very high dissolving capacity on salts, which is beneficial to ionic migration and the increase of electrical conductivity so that a lithium ion battery prepared from the hyperbranched polyester lithium ion battery gel electrolyte has long service life, small internal resistance, better specific energy, simple preparation process and no pollution.

The invention relates to an aqueous bi-component coating of a vehicle rubber and plastic sealing strip and a preparation method thereof. A component A takes aqueous polyurethane as matrix resin, and a component B is a cross-linking agent. The component A contains the following components in percentage by weight: 26-55 percent of aliphatic aqueous polyurethane dispersoid, 0-5 percent of polyamide paraffin slurry, 0-20 percent of aqueous ethylene paraffin liquid, 0-12 percent of aqueous resin containing active functional group, 1-10 percent of functional material, 5-10 percent of slipping agent, 0.1-2 percent of stuffing, 0-3 percent of pigment slurry, 1.5-6 percent of special assistant and 15-45 percent of solvent, and the component B contains the following components in percentage by weight: 70-100 percent of hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate and 0-30 percent of diethylene glycol butylether acetate. The invention has the advantages that after thecross-linking reaction is carried out on the aqueous resin composition and the cross-linking agent, the aqueous bi-component coating has excellent adhesiveness and meets the adhering requirements on treated rubber and plastic surfaces, has superstrong abrasive resistance and moderate flexibility, can enhance the slipping performance and the abrasive resistance with glass, resists high temperature, does not deform or separate out and has permanent slipping effect.

The invention provides a method for preparing a dry adhesive in order that the existing wet adhesive has the disadvantages that the wet adhesive is prone to deterioration, pollution, self-adhesion and non-reusability after being torn open. Based on the research into the structural characteristics of micron-level and nano-level foot hair of a gecko in the nature, micron-level and nano-level fiber arrays can be molded and drawn in a way that the fiber arrays are molded successively for twice, thus obtaining the micron-level and nano-level structure of the bio-mimetic gecko hair, which is characterized by powerful adhesion. The method of the invention comprises the following steps: preparing a micron-level silicon mother stamp; preparing a micron-level mold; preparing micron-level fiber arrays; preparing a nano-level silicon mother stamp; preparing a nano-level mold; and preparing nano-level fiber arrays. The method of the invention is capable of preparing the micron-level and nano-level structure with the parameters thereof being close to those of the foot hair of the gecko in the nature; and the prepared powerful dry adhesive is capable of being fitted with various surfaces and easily detached in an active manner.

The invention discloses a preparation method for an inverted LED white-light chip of chip scale package, and the method comprises the following steps: temporarily fixing an UV solidifying adhesive tape (2-1) on the upper surface of a die bonding positioning light cover (1); setting flip chips (3) on the upper surface of the UV solidified adhesive tape (2-1) according to the position of the die bonding positioning light cover (1); employing a fluorescent glue film (4) to cover the flip chips (3); carrying out vacuumizing and heating, and enabling the fluorescent glue film (4) to be solidified and packaged on the flip chips (3); carrying out cutting along gaps among the all packaged flip chips (3); removing the die bonding positioning light cover (1); carrying out UV irradiation and enabling the UV solidified adhesive tape (2-1) to be solidified, and obtaining the inverted LED white-light chip (5) of chip scale package. The method simplifies the technological flow, avoids glue mixing and dispensing in the original technology, improves the production efficiency and yield, and greatly reduces the production cost. The method completely avoids the sinking of phosphor, enables the batch stability of the inverted LED white-light chips (5) to be high, and enabling the color temperature of the inverted LED white-light chips (5) to be consistent.

It is an object of the present invention to provide a sealing apparatus having high sealing performance, entailing a low cost, and satisfactory in assembly characteristics. The sealing apparatus is a differential pressure-responsive sealing apparatus which is inserted between seal grooves formed in the side surfaces of outlet flange portions of adjacent combustor transition pipes to seal clearance between the side surfaces, comprising: a minimum required number of seal pieces connected in the longitudinal direction for imparting flexibility, the seal piece comprising a heat resistant, wear resistant material, and having a pair of sealing ridges each having an arcuate surface contacting the wall surface of each seal groove.

The invention provides a coating preparation method for flakey aluminum oxide ceramic, which comprises the following steps of: providing 60-70wt% of alumina powder material, 15-25wt% of organic solvent, 0.61-2.92wt% of cosolvent, 0.4-1.5wt% of dispersing agent, 3.0-5.0wt% of binding agent and 2.0-6.0wt% of plasticizer, wherein the organic solvent adopts a binary azeotropy mixing organic solvent system, such as isopropanol and ethyl acetate; two dispersing agents are adopted, such as castor oil and polycarboxylic acid; the binding agent adopts two different polyvinyl butyral (PVB) with a short molecular chain and a short molecular chain; and the plasticizer adopts polyethylene glycol (PEG) and dibutyl phthalate (DBP). The flakey aluminum oxide ceramic prepared with the coating preparation method disclosed by the invention has the advantages of good evenness and surface quality and small thickness size fluctuation, and the quality requirement of a subsequent printing circuit can be satisfied.

The invention provides a coating preparation method for flaky zirconium oxide ceramic. According to the method, 60 to 65 mass percent of zirconium oxide ceramic powder, 20 to 25 mass percent of organic solvent, 1.2 to 1.8 mass percent of dispersant, 4.0 to 6.0 mass percent of adhesive, and 2.5 to 7.0 mass percent of plasticizer are provided. The organic solvent is a binary azeotropic mixed organic solvent system such as butanone and ethanol; the dispersant comprises fish oil and oleic acid; the adhesive comprises two kinds of different polyvinyl butyral (PVB) with long and short molecular chains; and the plasticizer comprises polyethylene glycol (PEG) and dibutyl phthalate (DBP). The flaky zirconium oxide ceramic prepared by adopting the method is high in flatness and surface quality and low in thickness fluctuation, and can meet the quality requirement of subsequent processing.

The present invention provides an acrylic resin laminated film comprising a soft layer formed of an acrylic resin incorporated with rubber particles and having a flexural modulus of about 1,300 MPa or less, and a hard layer formed of an acrylic resin having a flexural modulus of about 1,800 MPa or more on at least one side of the soft layer, wherein the hard layer has a thickness of about 0.1 to about 30 mum and a ratio of the thickness of the hard layer to the overall thickness of the laminated film is about 50% or less. This acrylic resin laminated film has moderate surface hardness and flexibility and hence is capable of providing for a molding with less whitening when subjected to a molding or forming process including bending or stretching.

The invention discloses a self-repairing solid-state hybrid dynamic polymer. The self-repairing solid-state hybrid dynamic polymer contains sulfydryl-Michael addition bond dynamic covalent crosslinking and supermolecular hydrogen bond interaction, wherein the sulfydryl-Michael addition bond dynamic covalent crosslinking reaches above a gel point in at least one crosslinking network; sulfydryl-Michael addition bonds are obtained through sulfydryl-Michael addition reaction between sulfydryl groups and electron-deficient conjugate alkenes / enynes; the supermolecular hydrogen bond interaction contains hydrogen bond interaction involving at least one from side hydrogen bond groups, backbone hydrogen bond groups and other end hydrogen bond groups; with dynamic reversibility, the sulfydryl-Michaeladdition bonds and the supermolecular hydrogen bonds endow the self-repairing solid-state hybrid dynamic polymer with good plasticity, self-repairability, repeatability, reusability and recoverability and ensure that the self-repairing solid-state hybrid dynamic polymer can be widely applied to self-repairing materials, flexible materials, shape memory materials, energy storage device materials and the like.

The device mounting board according to the first embodiment has the structure in which an dielectric resin film and a photoimageable solder resist film are sequentially laminated on an upper surface of a base material. The device mounting board also has the structure in which the dielectric resin film and the photoimageable solder resist film are sequentially laminated on a lower surface of the base material. The photoimageable solder resist film contains the cardo type polymer.

The invention relates to water paint, in particular to two-component waterborne polyurethane finish paint composition and primer composition matched paint and preparation methods thereof, and providestwo-component waterborne polyurethane finish paint composition and primer composition and preparation methods thereof in order to solve the problem that a paint film formed by the conventional waterborne floor paint is poor in mechanical strength and poor in medium resistance. The finish paint composition is prepared from a main agent and a curing agent, wherein the main agent is prepared from ahydroxy polyacrylate-containing dispersion, a waterborne elastic polyurethane dispersion, an alcohol ether solvent, a wetting dispersant, a defoamer, matting powder, a thickener, a liquid flame retardant, a mould inhibitor, deionized water, an anti-settling agent, a wetting agent, wax emulsion and a leveling agent; the curing agent is prepared from water-dispersed polyisocyanate and a high-boiling-point ether-ester solvent. By means of matched construction of the two-component waterborne polyurethane finish paint composition and primer composition, a paint film is excellent in adhesion, flexible and fire-retardant and is applicable to decoration and protection of PVC floor cloth of oversize vehicles and dining cars and floors of stadiums.

The invention relates to an improvement for a fire-resistant cable. The invention is characterized in that: an outer refractory insulating layer of a conductor is high temperature extruded siliceous compounds with a thickness of 0.05 to 1.0 millimeter, and an outer protective layer is a refractory fiber braid ply. Compared with the prior fire-resistant cable, the fire-resistant cable can be produced with long length; the production process is simple; the outside diameter of the cable is small; the occupied space of laying is small; the twisting property is moderate; recovery and separation of waste cables are easy, and recovery materials can be recycled and are pollution-free; refractory insulating raw material resources are numerous and the cost of the refractory insulating raw material resources is low, thereby the cost of fire-proof insulation of the cable can be reduced and is respectively reduced by 70 percent, 40 percent and 50 percent compared with mineral insulation, mica insulation and silicon rubber insulation; the waterproof, oil proof and radioresistant performances are superior to the prior fire-resistant cable; the refractoriness and the thermotolerant level are high; the fire-resistant cable can be operated under the environment of 1000 DEG C over a long period of time; the bend radius is 20 times or so of the cable diameter. At least one intermediate layer of the silicon refractory insulating layer is made of silicon dioxide, and an inner layer and an outer layer on both sides are made of silicon compounds different from the silicon dioxide or silicon dioxide with different crystalline structures, thereby light signals can be also transmitted and then the fire-resistant cable simultaneously has the function of photocommunication.

The invention specifically relates to water-based lotus-leaf-structured hydrophobic over-printing varnish for wallpaper and a preparation method of the over-printing varnish, and belongs to the technical field of ink. The technical problem to be solved is to provide an over-printing varnish by using which the surface of a wallpaper product can be smooth, bright and wear-proof and the lotus leaf type waterproof and moisture-roof effects can be realized, and a preparation method of the over-printing varnish. In order to solving the technical problem, the technical scheme adopted is as follows: the water-based lotus-leaf-structured hydrophobic over-printing varnish for the wallpaper is prepared from raw materials including a modified organic silicon polymer emulsion, a non-film-forming acrylate emulsion, an styrene-acrylic emulsion, neutralizing amine, propylene glycol, a water-based coalescing agent, a water-based leveling wetting agent, a mineral defoamer, a water-based nanoscale organosilicon waterproofing agent, a waterborne polyurethane thickening agent, deionized water and an organic silicon defoamer; the raw materials are stirred and mixed in a specific order to form the over-printing varnish.

The invention provides organic and inorganic compound waterborne paint for exterior walls and a preparation method thereof. The paint comprises waterborne synthetic resin, an inorganic cementitious material, a stabilizing agent, an auxiliary agent, a pigment and filler, and water, wherein the waterborne synthetic resin is pure acrylic emulsion modified by ultraviolet crosslinking, the inorganic cementitious material is a mixer of silicate and silica sol, and the stabilizing agent is siloxane. The organic and inorganic compound waterborne paint for exterior walls has good film forming effects, appropriate flexibility, extremely good adhesive force for surface of an object, good stability, as well as extremely good weatherability, wear resistance, and moisture and heat resistance; and the paint can satisfy demands of multiple respects.

The invention discloses a corrugated guardrail plate comprising a baseplate fixedly connected with an obstruction block or a standing column, wherein corrugated plates respectively extend out of two sides of the baseplate; the baseplate is integrated with the corrugated plates; the corrugated plates protrude to the same side of the plate face of the baseplate and exceed the plate face of the baseplate; a smooth transition is adopted between the baseplate and each corrugated plate; both the baseplate and the corrugated plates extend in the length direction of the guardrail plate and are thermoplastic composite plates; and each thermoplastic composite plate comprises a reinforcing frame wrapped in a thermoplastic material layer. Aiming to overcome the defects of high probability of corrosion, high rigidity and poor collision energy absorption of a steel guardrail plate, small elastic modulus, large size and high cost of an all-plastic guardrail plate, and complex manufacturing technology and worse collision energy absorption of a plastic-steel guardrail plate, the invention provides the corrugated guardrail plate, which has the advantages of corrosion resistance and appropriately matched rigidity and flexibility and can reduce harm to a vehicle and personnel to the greatest extent.

The invention relates to an aqueous adhesive used for surface flocking of a sheet metal, especially relates to a water-borne adhesive used for steel plate flocking and its preparation method. The method comprises the following steps: adding a polymerization emulsion and filling materials into a container, stirring and adding an antifoaming agent, a mildew-resistant bactericide, a wetting agent and a thickening agent, continuously stirring; decelerating the stirring speed and adding a tackifier, obtaining the water-borne adhesive used for steel plate flocking. The invention has the advantages of long storage life, moderate flexibility and high adhesive strength, and the adhesive provided in the invention has high strength of adhesion stress to sheet metal and nylon fine hair and good waterproof performance, so that the adhesive can ensure the usage of the flocking steel plate in a plurality of environments.

The invention relates to a strong white emulsion which is prepared from the following raw materials in percentage by weight: 44-46 parts of vinyl acetate, 5-8 parts of polyvinyl alcohol, 1-5 parts of dibutyl phthalate, 0.1 part of ammonium persulfate, 13-16 parts of alcohol, 0.1 part of water repellents and 21-24 parts of water. The product disclosed by the invention has the advantages of good low-temperature resistant property and water-resistant property, high product bonding strength, convenience for use and production cost reduction.

The present invention relates to an application tape, which has a function of improving an application workability when a protective pressure-sensitive adhesive sheet is applied to an adherend, in which the application tape has a surface that has a coefficient of static friction for a PET film of 0.05-1.0 in the case where the PET film is slid on the application tape having a size of 30 mm×30 mm under a condition of a load of 100 g and a rate of 100 mm / min, and the application tape has a Young's modulus of 300 MPa or lower.

The invention provides a method for preparing a flexible polyvinyl alcohol hydrogel cold storing bag. The method for preparing the flexible polyvinyl alcohol hydrogel cold storing bag comprises the steps of cross-linking polyvinyl alcohol with borax, and adding a glycerin softening agent; or cross-linking polyvinyl alcohol with borax, and adding a glycerin softening agent to prepare flexible polyvinyl alcohol hydrogel with high water content. The flexible polyvinyl alcohol hydrogel can be packaged in a polyvinyl chloride or polyethylene plastic bag under vacuum to form the flexible polyvinyl alcohol hydrogel cold storing bag.

The invention relates to the field of lithium ion batteries, in particular to a polymer electrolyte membrane, a preparation method thereof and a lithium ion battery. The polymer electrolyte membrane contains a polymer matrix, lithium salt dispersed in the polymer matrix and polymer fibers, wherein the polymer fibers are provided by polymer fibers modified by a first silane coupling agent, and thefirst silane coupling agent is a silane coupling agent containing carbon-carbon unsaturated double bonds. The polymer matrix contains a cross-linked structure provided by a cross-linking agent, a copolymer chain structure provided by a cross-linkable copolymer, and inorganic nanoparticles. The polymer electrolyte membrane provided by the invention has the advantages of higher ionic conductivity, lower degree of crystallinity, proper flexibility, simple preparation method and process and lower cost.

The invention discloses a quick packaging method for a COB-type LED chip. The method includes steps of covering the COB-type LED chip 2 with a fluorescent coating; enabling the fluorescent coating to be adhered to the COB-type LED chip in a vacuum condition; and then heating to enable the fluorescent coating to be solidified and to package the COB-type LED chip in a ordinary pressure condition. In this way, the packaged COB-type LED chip 3 is obtained. According to the invention, technical process of a prior art is simplified; the production efficiency is improved; and the yield rate is improved and the production cost is reduced at the same time. The operation is simple and technical parameters are easy to control. Fluorescent powder settlement is avoided completely, so that COB-type LED chip packaging batch stability is high and the color temperature keeps consistent. The packaged COB-type LED chip obtained by using the method is good in high temperature and low temperature impact and is not easy to get aged during long term use due to firm bonding of the substrate and the package coating. The refraction coefficient is 1.40 to 1.43 and the hardness and the flexibility are moderate.

The invention relates to the field of lithium ion batteries, in particular to a nanoparticle modified cross-linked polymer, a polymer electrolyte, a preparation method and application thereof. The cross-linked polymer comprises a cross-linked structure provided by a cross-linking agent and a copolymer chain connected to the cross-linked structure. The copolymer chain is provided by a cross-linkable copolymer containing a structural unit shown as formula (1), a structural unit shown as formula (2) and a structural unit shown as formula (3), wherein the cross-linkable copolymer is connected to the cross-linking agent by at least part of the structural unit shown as formula (3) so as to provide the copolymer chain. The cross-linked polymer also includes a nanoparticle coupling structure provided by silane coupling agent modified inorganic nanoparticles. The polymer electrolyte provided by the invention has high ionic conductivity, low crystallinity and appropriate flexibility. The formula(1), formula (2) and formula (3) are shown as the specification.

The invention discloses an organopolysiloxane composition used for packaging a light-emitting diode. The composition is composed of a component A and a component B. The component A is manufactured through the steps of stirring vinyl phenyl polysiloxane and vinyl phenyl silicone soil uniformly, adding a karstedt platinum catalyst and stirring the mixture uniformly; the component B is manufactured through the steps of stirring hydrogen-contained phenyl polysiloxane, heptamethyltrisiloxane and phenyl vinyl polysiloxane containing an epoxy group uniformly, adding an inhibitor and tackifier and stirring the mixture uniformly. The reaction process is easy to control, and the organopolysiloxane composition is economical and environmentally friendly, and adapts to large-scale mass production; meanwhile, without containing inorganic ions, the composition has an excellent insulating property; as anion exchange resin is adopted as a catalyst, the after-treatment process is simple, the composition can be reused, cost is reduced, and environment can be protected easily. The refraction coefficient of the composition is 1.541-1.545, and hardness and flexibility are moderate.

An applicator includes a squeezer for pushing out a content liquid to an applicator part, and the shape of a content liquid delivering port of the applicator part is formed to be oval or rectangular while the minor axis and major axis on the delivery port side are specified to be 0.5 to 2 mm and 2 to 8 mm, respectively. In this applicator, large-sized particles can be delivered by enlargement of the bore inside the applicator part. Further, formation of an oval delivering port allows for drawing fine lines in the minor axis direction and thick lines in the major axis direction. Moreover, provision of small-diametric projections at the front end of applicator, enables drawing of long lines and retaining of the liquid cosmetic stored between projections.

The invention provides a coating preparation method for flaky zirconium oxide ceramic. According to the method, 60 to 65 mass percent of zirconium oxide ceramic powder, 20 to 25 mass percent of organic solvent, 1.2 to 1.8 mass percent of dispersant, 4.0 to 6.0 mass percent of adhesive, and 2.5 to 7.0 mass percent of plasticizer are provided. The organic solvent is a binary azeotropic mixed organic solvent system such as butanone and ethanol; the dispersant comprises fish oil and oleic acid; the adhesive comprises two kinds of different polyvinyl butyral (PVB) with long and short molecular chains; and the plasticizer comprises polyethylene glycol (PEG) and dibutyl phthalate (DBP). The flaky zirconium oxide ceramic prepared by adopting the method is high in flatness and surface quality and low in thickness fluctuation, and can meet the quality requirement of subsequent processing.