1365 results about "High adhesion" patented technology

The invention provides a coating spraying process for an aluminum alloy wheel. The coating spraying process comprises the following steps: S1, surface treatment; s2, spraying a bottom coating; s3, spraying a surface coating; s4, spraying a nano-particle reinforcing layer; s5, thermal plasma spraying post-treatment is carried out; according to the process method, the adhesive force can be improved, the cold plasma treatment technology can efficiently activate the surface of the aluminum alloy, the adhesive force between the coating and the base material is enhanced, and the risk that the coating is peeled off is reduced. And by adding the nano-particle reinforcing layer, the surface hardness of the coating is remarkably improved, and the coating has higher scratch resistance. And the corrosion resistance is enhanced, specifically, the corrosion resistance and the ultraviolet resistance of the aluminum alloy wheel are greatly improved through the optimized formula of the bottom coating and the surface coating, especially the application of a nano reinforcing material and a photocureable coating. The ultraviolet curing technology of the photocureable coating greatly shortens the curing time, the high-frequency production requirement is met, and the production efficiency is improved.

The invention discloses an uvioresistant acrylic resin coating and a preparation method thereof, and belongs to the technical field of acrylic resin paints.The uvioresistant acrylic resin coating is characterized in that step-by-step functional design is adopted, a functional polyurethane prepolymer is constructed through prepolymerization reaction and double-bond end capping, fluorosilicone modified acrylate emulsion is prepared through a core-shell emulsion polymerization process, and the uvioresistant acrylic resin coating is obtained. Then carrying out surface silane modification on hexagonal boron nitride and carrying out composite coating to obtain a modified boron nitride auxiliary agent; and finally, carrying out composite emulsification and dispersion compounding on all the components to obtain the anti-ultraviolet acrylic resin coating. Through the synergistic enhancement effect of the fluorosilicone modified core-shell structure and the surface modified boron nitride, the ultraviolet aging resistance and the insulation reliability of the coating are remarkably improved on the basis of keeping high adhesive force, excellent flexibility and impact resistance of the coating; the problems that a traditional acrylic coating is prone to yellowing and pulverization under long-term ultraviolet radiation, and the mechanical property is reduced are effectively solved, and the acrylic coating is suitable for the field of electronic equipment protective coatings with high requirements for weather resistance, mechanical strength and electrical insulating property.

The invention discloses an anti-corrosion treatment process for a transformer oil tank. The anti-corrosion treatment process comprises the following steps that S1, the surface of the oil tank is pretreated; step S2, coating a primer; s3, intermediate paint is coated; step S4, coating a finishing coat; and S5, coating post-treatment is carried out. By selecting high-performance anti-corrosion paint and a reasonable coating process, the anti-corrosion performance of the surface of the transformer oil tank is remarkably improved, erosion of various corrosion factors can be resisted for a long time, and the anti-corrosion performance is excellent; an air spraying method is adopted, so that uniform distribution of a coating on the surface of the transformer oil tank is ensured, and the problem that the anti-corrosion effect is reduced due to non-uniform coating is avoided; through surface pretreatment and selection of a high-adhesive-force coating, the binding force of the coating and a transformer oil tank base material is enhanced, and the durability and reliability of the coating are improved; the process adopts a mechanical coating method, so that the construction efficiency is improved, the labor intensity is reduced, and the construction efficiency is high.

The invention provides light-cured epoxy ink and a preparation method and application thereof, the light-cured epoxy ink comprises an alicyclic epoxy monomer, an oxetane monomer, a diluent, a photoinitiator, an adhesion promoter and an assistant, the alicyclic epoxy monomer is an alicyclic epoxy monomer containing more than two polycyclic rings in a molecule; and the adhesion promoter is glycidyl ether epoxy micromolecules containing hydroxyl groups. According to the epoxy ink composition disclosed by the invention, the rigid group alicyclic ring and the adhesion promoter with hydroxyl are introduced, so that the epoxy ink composition has high adhesion and film surface hardness at the same time. The light-cured printing ink provided by the invention has low viscosity and high light transmittance. The liquid crystal composition is suitable for the field of display panels such as OLEDs, Micro-LEDs and the like, and the ink-jet printing technology is met.

In a method of manufacturing a semiconductor device, a gate dielectric layer is formed over a channel region made of a semiconductor material, a first work function adjustment material layer is formed over the gate dielectric layer, an adhesion enhancement layer is formed on the first work function adjustment material layer, a mask layer including an antireflective organic material layer is formed on the adhesion enhancement layer, and the adhesion enhancement layer and the first work function adjustment material layer are patterned by using the mask layer as an etching mask. The adhesion enhancement layer has a higher adhesion strength to the antireflective organic material layer than the first work function adjustment material layer.

The invention provides a solvent-free UV dielectric insulation protective coating as well as a preparation method and application thereof. The high-surface-energy and high-glass-transition-temperature UV-curable coating is prepared by combining flexible modified polyurethane acrylate, flexible acrylate, rigid acrylate with high glass transition temperature, a high-functionality acrylate cross-linking agent, methyl methacrylate with high dilutability and high glass transition temperature as well as a plurality of photoinitiators, auxiliaries, pigment and filler powder and the like. The invention relates to a dielectric insulation protective coating with high adhesive force. The prepared coating is a solvent-free 100% solid single component, is complete in mixing and dissolving, convenient to construct, high in light curing energy utilization rate, high in production efficiency and suitable for large-scale automatic large-scale flow line production, and compared with PSA back glue used for a traditional PET blue film, the outer surface of the coating has higher surface energy, and the coating has the advantages of being high in light curing energy utilization rate and high in production efficiency. And the film has considerable dielectric insulation performance and good edge covering protection performance, and meets the development requirements of a higher charging voltage platform of a fast-charging electric vehicle in the future.

To provide a powder coating device that removes only fine powders that are difficult to attach to a coated object from a recovery powder circulation path, suppresses a ratio of fine powders contained in recovery powders, and has high adhesion efficiency.SOLUTION: A powder coating device performs coating by blowing a powdered paint A conveyed by conveyance air from a coating material tank 1 to a coated object W in a powder coating booth 6, and comprises a circulation path that recovers overspray powders which have not attached to the coated object W and returns the recovered recovery powders to the coating material tank 1. In the powder coating device, a fine powder removal device for removing fine powders which are difficult to adhere to the coated object is installed in the recovery powder circulation path.SELECTED DRAWING: Figure 1

The invention discloses silencing and mildew-proof organic silica gel as well as a preparation method and application thereof, and belongs to the technical field of organic silicon binding material polymers. Comprising the following components in parts by weight: 35-45 parts of nano calcium carbonate, 32-40 parts of hydroxyl-terminated polysiloxane, 5-9 parts of silencing powder, 0.5-2.5 parts of glass fiber powder, 5-9 parts of a hyperbranched polymer, 2-5 parts of a hydrophobic surface modifier, 1.5-3 parts of color paste, 1-2 parts of a water-based coupling agent, 1-2 parts of a cross-linking agent, 0.5-2.5 parts of a mildew preventive, 0.4-2 parts of a composite titanide and 0.4-0.7 part of nano silver powder. According to the invention, the nano silver powder and the mildew preventive are compounded, and an inorganic sterilization system is combined, so that broad-spectrum environment-friendly bacteriostasis is realized, and high-humidity long-acting protection is met; the powder is subjected to hydrophobic treatment, moisture is blocked, and high adhesion is kept; silencing powder serves as a core, a sound absorption network is cooperatively formed, the noise reduction capacity is improved, and the device is suitable for multiple scenes.

The invention belongs to the technical field of photovoltaic coatings, and discloses a photovoltaic coating as well as a preparation method and application thereof. The photovoltaic coating is prepared from the following raw materials: a solvent, an ultraviolet light absorber, a wetting agent, an antistatic agent, modified hydrophilic silicon dioxide, nano magnesium fluoride and nano tin dioxide, the modified hydrophilic silicon dioxide is hydrophilic silicon dioxide modified by ethylenediamine and glacial acetic acid. A coating formed by the photovoltaic coating is high in adhesive force and resistant to aging, and the light transmittance, the self-cleaning property and the antistatic property of photovoltaic glass can be obviously improved.

The invention relates to the field of photovoltaic technology, and provides a solar cell, a preparation method thereof and a photovoltaic module. The solar cell includes a substrate and an electrode. The electrode comprises an alloy seed layer and a diffusion layer, the alloy seed layer is arranged on the substrate, the diffusion layer is arranged between the alloy seed layer and the substrate, and the material of the diffusion layer comprises a compound composed of elements in the substrate and elements in the alloy seed layer. The alloy seed layer is combined with the substrate through the diffusion layer, and the characteristics of high adhesive force, good contact effect and the like are achieved.

The invention belongs to the field of composite ink coatings, and particularly discloses a high-thermal-conductivity and high-adhesiveness copper foil coating ink coating as well as a preparation method and application thereof. The ink coating is prepared from the following components in parts by weight: 15 to 25 parts of epoxy resin, 10 to 20 parts of polyurethane resin, 5 to 12 parts of modified cellulose, 30 to 45 parts of heat-conducting filler, 8 to 15 parts of aliphatic polyisocyanate curing agent, 20 to 35 parts of solvent, 2 to 5 parts of silane coupling agent and 0.5 to 3 parts of pigment. The modified cellulose is prepared by modifying halogen-free betaine hydroxide, and can cooperate with the double-resin matrix to enhance the interface bonding force and construct a three-dimensional heat-conducting network. After the surface of an electrolytic or rolled copper foil is coated with the ink coating, the heat conductivity coefficient of the coating is larger than 0.4 W / (m.K), the dyne value is larger than 38, the cross-cut test is larger than or equal to 4B, alcohol wiping resistance is achieved, falling is avoided, the color difference delta E is smaller than 1, and the ink coating is suitable for a high-frequency circuit substrate and a lithium battery current collector.

The invention provides a mussel bionic well wall thermal insulation material for drilling fluid as well as a preparation method and application of the mussel bionic well wall thermal insulation material. The mussel bionic well wall thermal insulation material for the drilling fluid is prepared from a viscous polymer, a structure reinforcing material, a nano thermal insulation hollow sphere material and a coating material, and has the characteristics of low heat conductivity coefficient, high strength, slow release of viscosity and high adhesion strength; when the thermal insulation material reaches a high-temperature stratum, the outermost coating layer is gradually broken under the action of high-temperature and high-speed shearing force, the inner viscous polymer-structure reinforcing material-nanometer thermal insulation hollow sphere material composite material is slowly released, the viscous polymer and well wall rock are combined through chemical bonds, and the thermal insulation performance of the well wall is improved. The composite material is tightly adsorbed on the well wall to form a stable heat insulation barrier, the problem that a traditional material falls off due to insufficient adsorption force is solved, and the heat insulation effect in the high-temperature environment is remarkably improved.

The invention relates to the technical field of UV coatings, in particular to a waterproof wear-resistant UV coating for a floor and a preparation method of the waterproof wear-resistant UV coating. The waterproof and wear-resistant UV coating for the floor is prepared from the following raw materials in parts by mass: 30 to 60 parts of polyurethane acrylate, 20 to 40 parts of fluorinated epoxy acrylate oligomer, 20 to 40 parts of pentaerythritol tetraacrylate, 1 to 5 parts of tetraethoxysilane, 15 to 25 parts of hollow glass beads, 1 to 3 parts of ammonia water, 1 to 2 parts of trifluoropropane trimethoxysilane and 1 to 2 parts of amino-terminated polyamidoamine. The coating is prepared from 1-3 parts of graphene oxide, 1-2 parts of a photoinitiator, 1-2 parts of polytetrafluoroethylene wax, 0.5-1.5 parts of a dispersing agent, 1-2 parts of a flatting agent and 1-2 parts of a defoaming agent. The waterproof coating is excellent in waterproof effect, high in adhesive strength and excellent in dimensional stability; when the coating is subjected to mechanical actions such as friction and impact, the surface of a coated object is comprehensively protected, the wear rate is remarkably reduced, and the wear resistance is improved.

The invention relates to the technical field of flexible steel wire ropes, and discloses a durability-enhanced flexible steel wire rope and a processing technology thereof.The durability-enhanced flexible steel wire rope comprises, by mass, 98-105 parts of an alloy steel wire core; 5 to 15 parts of a ceramic nano composite outer coating; 2 to 10 parts of a self-repairing polymer middle coating layer; 1-5 parts of a high-adhesion polymer inner coating; 1-8 parts of a polymer composite lubricant; 0.5 to 3 parts of nanometer lubricating particles; according to the process, through collaborative design of multiple functional coatings and a lubricating system and combination of a heat treatment process, the corrosion resistance and the wear resistance of the steel wire rope are remarkably improved, and the service life is remarkably prolonged. Through the collaborative design of the high alloy steel core, the ceramic nano coating, the self-repairing middle layer, the three-layer coating structure and the polymer nano lubricating system, the corrosion resistance, the fatigue resistance, the wear resistance and the self-repairing capacity of the steel wire rope are improved, the service life is prolonged, and the maintenance cost is reduced.

The invention belongs to the field of electronic display film materials, and discloses a UV optical film material and a manufacturing method and application thereof.The UV optical film material comprises a base material, a frosted layer, an inner protective film layer, an optical ink layer, a transparent adhesive layer and an outer protective film layer, and the inner surface of the base material is sequentially coated with the frosted layer and the inner protective film layer outwards; the outer surface of the base material is sequentially coated with an optical ink layer, a transparent adhesive layer and an outer protective film layer outwards; the coating process comprises the steps that the viscosity of UV optical ink is controlled to be 16 ''-18'', the outer surface of the base material is coated with the UV optical ink through a precise micro-concave ceramic coating roller, and then UV curing is conducted to form an optical ink layer; coating a transparent adhesive layer on the surface of the optical ink layer, and after curing, coating UV optical transfer adhesive on the inner surface of the base material to form a frosted layer; finally, the surface of the frosted layer and the surface of the transparent adhesive layer are coated with an inner protective film layer and an outer protective film layer respectively. The coating has the characteristics of high hardness and high adhesive force, the surface can be kept uniform, the edge sharpness is high, and discoloration can be effectively prevented.

The invention discloses a chromium-free fingerprint-resistant coating agent for a galvanized steel sheet and a preparation method of the chromium-free fingerprint-resistant coating agent. The chromium-free fingerprint-resistant coating agent is prepared from the following elements in percentage by mass: 1%-5% of sodium molybdate or / and sodium tungstate, 0.5%-2% of a phytic acid-chitosan compound, 0.3%-1.0% of a chelating titanate coupling agent, 2%-5% of fluorosilane modified nano SiO2, 30%-55% of waterborne hyperbranched polyurethane resin, 0.5%-2% of oxidized polyethlene wax and the balance of deionized water. The chromium-free fingerprint-resistant coating agent disclosed by the invention has excellent fingerprint resistance, high adhesive force and environmental protection property, is free of white rust in neutral salt mist for 150 hours and red rust in neutral salt mist for 360 hours, the white rust area is less than 5%, the industrial requirements of galvanized steel sheet surface treatment are met, and the problem of environmental risk in the prior art is avoided by adopting the combination of bio-based corrosion inhibitors.

The invention discloses high-adhesiveness water-based printing ink and a preparation method thereof, and belongs to the technical field of printing, and the high-adhesiveness water-based printing ink comprises the following components: water-based acrylic resin, SiO2 (at) TiO2 (at) EPS composite filler, pigment, a dynamic covalent cross-linking agent, nano cellulose, a wetting dispersant, a defoaming agent and deionized water. The preparation method comprises the following steps: firstly, preparing an EPS terpolymer containing a multi-functional group, and then modifying a SiO2 / TiO2 preassembly to prepare a composite filler; meanwhile, a dynamic covalent cross-linking agent generated by the reaction of furan methacrylate and maleimide propyl triethoxy silane is prepared; and finally, mixing the components step by step to obtain the ink. The multi-stage structure of the composite filler enhances the interface effect and covering power, the dynamic covalent cross-linking agent forms a reversible network to improve the stability and the self-repairing property, and the nano cellulose and other components have the synergistic effect, so that the ink has good adhesiveness and stability.

The invention relates to the field of batteries, in particular to a high-adhesion and water-resistant carbon-coated current collector and a preparation method and application thereof. The carbon-coated foil comprises a foil body and a carbon-coated layer attached to the surface of the foil body, conductive slurry of the carbon coating layer is composed of a conductive agent, a dispersing agent and a modified binder according to a specific ratio, and the modified binder is prepared through specific components and processes and has the characteristic of low viscosity. By optimizing a coating material formula and a preparation process, the adhesive force and the water resistance of the carbon-coated current collector are remarkably improved, so that the overall stability of an electrochemical energy storage device is improved, and the service life of the electrochemical energy storage device is prolonged.

The invention discloses an anti-corrosion oil-resistant corrugated pipe inner layer coating and a preparation method thereof. The coating comprises acrylic acid modified epoxy resin, epoxy phosphate, an auxiliary agent, a curing agent and water. The preparation method comprises the steps of synthesis of acrylic acid modified epoxy resin, synthesis of epoxy phosphate, epoxy mixing reaction, neutralization reaction, coating preparation and the like. The preparation method comprises the following steps: adding a copolymer side chain with acrylic acid, styrene and vinyl siloxane to a side chain in epoxy resin to obtain acrylic acid modified epoxy resin, and introducing a phosphate end group to an end group of the epoxy resin to obtain epoxy phosphate; epoxy phosphate and acrylic acid are used for modifying epoxy resin, and an initiator is supplemented for secondary polymerization chain extension and cross-linking reaction, so that the obtained epoxy mixture has the curing film stability of an epoxy coating, the compact isolation effect of acrylic resin, the high adhesiveness of silicon resin to a metal surface and the phosphating treatment characteristic of phosphoric acid; and the paint has excellent water resistance, oil resistance, rust resistance and other corrosion resistance.

The invention relates to the field of processing of capacitor packaging coatings, and particularly discloses a quick-drying packaging coating for a thin-film capacitor, a preparation method and application. The quick-drying packaging coating for the thin film capacitor consists of a component A and a component B in a mass ratio of 100: (90-100), the component A comprises 30-50 parts of organic silicon modified epoxy resin, 20-30 parts of polyether polyol, 10-25 parts of toughening filler, 1-3 parts of a coating tackifier, 1-3 parts of a flow promoter and 0.5-1 part of a defoaming agent; the component B comprises the following components in parts by weight: 45-75 parts of a curing agent, 1-2 parts of an accelerant, 1-1.5 parts of an antioxidant and 1-2 parts of a weather-resistant agent; the preparation method comprises the following steps: respectively preparing the component A and the component B, respectively packaging, and mixing while using to obtain the packaging coating. The method is applied to a thin-film capacitor. The quick-drying water-based paint has the advantages of quick drying, good moisture resistance, good flexibility and high adhesion stability.

The invention belongs to the field of alkyd resin, and particularly relates to alkyd resin with high adhesive force and a preparation method thereof. The high-adhesion alkyd resin is prepared from soya oil acid, a nitrogen-containing heterocyclic compound, phthalic anhydride, pentaerythritol and hydroxyl-terminated polydimethylsiloxane. By introducing a nitrogen-containing heterocyclic compound (such as quinoline and triazole) and hydroxyl-terminated polydimethylsiloxane (PDMS), the molecular structure of the alkyd resin is remarkably optimized, so that the alkyd resin is superior to the traditional alkyd resin in the aspects of heat resistance, corrosion resistance, mechanical strength, adhesive force, construction performance and the like. The coating is suitable for the fields of high-temperature anticorrosive coatings, marine coatings, industrial protective coatings and the like, and shows remarkable technical advantages and wide market prospects.

The invention discloses composite hydrogel bio-ink with a function of space-time delivery of double growth factors as well as a preparation method and application of the composite hydrogel bio-ink, and belongs to the technical field of biomedical materials and tissue engineering. According to the preparation method, imidazolyl-modified methacrylated gelatin and double-bonded PF127 are compounded, and meanwhile, free vascular endothelial growth factors and connective tissue growth factor-loaded PLGA microspheres are entrapped in a system, so that the bio-ink with excellent printability, high adhesion, swelling resistance and space-time delivery function is formed; the bio-ink physically has the advantages of high printing fidelity, low swelling property, high mechanical strength and strong tissue adhesion of a synthetic material; in biology, the system can be used as an intelligent carrier to realize programmed space-time delivery of various growth factors, so that complex cell biological behaviors are accurately arranged, and real regeneration of functional tissues is guided.

The invention belongs to the technical field of epoxy resin coatings, and particularly relates to a waterborne epoxy resin coating and a preparation method thereof. The waterborne epoxy resin coating is prepared from the following raw materials in percentage by mass: 5-70% of novolac epoxy resin F-516, 10-12% of hydroxyl-terminated polybutadiene, 5-7% of glycidyl methacrylate, 8-10% of a curing agent, 0.6-1.0% of a thermal initiator, 1-2% of a silane coupling agent, 0.3-0.5% of an auxiliary agent and the balance of deionized water, wherein the total percentage is 100%. Microencapsulated polyether amine in the water sample epoxy resin coating accurately releases polyether amine T-403 to realize controlled release of a curing agent, and by combining thermal triggering double-bond polymerization of dicumyl peroxide and interface stability of the silane coupling agent and synergistic effect of all the components, the coating is endowed with high adhesive force, high impact resistance, excellent salt spray corrosion resistance and low water vapor permeability; good application prospects are realized.

The invention relates to the technical field of adhesives, in particular to a high-bonding-strength bio-based epoxy adhesive and a preparation method thereof. Comprising 20-50 parts of bio-based epoxy resin, 8-20 parts of a bio-based epoxy flexibilizer, 5-10 parts of an epoxy diluent, 25-60 parts of an inorganic filler, 2-8 parts of a curing agent and 0.2-1 part of a curing accelerator, the epoxy resin adhesive with excellent performance is developed by using a bio-based material as a raw material, has high adhesion to metal aluminum and the like, has excellent toughness, can be widely applied to automobiles, aviation, industry, electronics and other directions requiring shock absorption, impact resistance and structural adhesion, has an excellent economic prospect, and is worthy of popularization and application. Meanwhile, the method has important significance in environmental protection.

The invention belongs to the field of biomedical materials, and discloses a hydrogel patch with piezoelectricity, conductivity and high adhesion and a preparation method and application of the hydrogel patch. Polyvinyl alcohol (PVA) and acrylic acid (AA) serve as polymer frameworks of the hydrogel patch; the invention relates to a nano-zinc oxide / poly (3, 4-ethylenedioxythiophene) / poly (styrenesulfonic acid) (PEDOT: PSS) composite conductive adhesive, which comprises nano-zinc oxide (ZnO) as a piezoelectric material, poly (3, 4-ethylenedioxythiophene)-poly (styrenesulfonic acid) (PEDOT: PSS) as a conductive material, and N-hydroxysuccinimide acrylate (NHS-AA) as an adhesive functional monomer. According to the invention, active ester groups in the N-hydroxysuccinimide acrylate are utilized, so that the patch can quickly form covalent amido bonds with amino groups on the surface of a tissue in a dry state, firm adhesion is realized, local nerve repair can be effectively promoted through a piezoelectric effect, a novel ideal material is provided for disease treatment, and the patch has wide application prospects. Wide clinical application prospects are realized in the field of biological medicines.

To provide a modified polyisocyanate having high adhesive property to a non-ferrous metal and applicable to a one-coat coating material.SOLUTION: A modified polyisocyanate is a reaction product which has as the raw material, components containing an alkoxysilane (a1) having a primary amino group, an unsaturated carboxylic acid alkyl ester (a2) or a saturated carboxylic acid alkyl ester (a3), and a polyisocyanate (a4). The unsaturated carboxylic acid alkyl ester (a2) is at least one kind selected from the group consisting of a branched alkyl ester (a2-1) of an unsaturated dicarboxylic acid, and a branched alkyl ester (a2-2) which may contain a hetero atom of an unsaturated monocarboxylic acid or has a cyclic structure. A production method of the modified polyisocyanate, and a coating containing the same are also provided.SELECTED DRAWING: None

The invention relates to high-elasticity high-adhesive-force UV curing flexible printing ink and a preparation method thereof, and relates to the technical field of printing ink, the high-elasticity high-adhesive-force UV curing flexible printing ink comprises aliphatic polyurethane acrylate, a polyphosphate acrylate oligomer, core-shell structure polyurethane-acrylate microspheres, hexanediol diacrylate, isobornyl acrylate, a photoinitiator and a pigment, and a functional auxiliary agent. The polyphosphate acrylate oligomer realizes strong anchoring of a base material through a phosphate group, and meanwhile, a flexible chain segment of the polyphosphate acrylate oligomer interacts with the aliphatic polyurethane acrylate resin to form a continuous phase; the acrylate shells of the core-shell structure microspheres are covalently bonded with the matrix resin, and the elastic cores of the core-shell structure microspheres are uniformly dispersed in the resin as stress dissipation units. Through the synergistic effect, firm adhesion of a cured film layer can be achieved through interface chemical bonds, stress can be effectively dispersed through deformation of the microspheres when the cured film layer is subjected to external force, and therefore excellent adhesive force and outstanding flexibility are obtained.

The invention discloses a high-durability reflective hot-melt road marking coating and a preparation method thereof, and belongs to the technical field of coatings. The coating is prepared from the following raw materials in parts by weight: 15-25 parts of modified petroleum resin, 2-5 parts of a plasticizer, 5-15 parts of glass beads, 5-10 parts of pigment, 45-60 parts of filler, 3-8 parts of a durability enhancer and 0.5-1.5 parts of an antioxidant. The modified petroleum resin is obtained by hydrolyzing silane monomers in a specific molar ratio to prepare an epoxy-terminated organic silicon oligomer and then chemically grafting the epoxy-terminated organic silicon oligomer with petroleum resin. The durability reinforcing agent is prepared by compounding nano silicon dioxide, elastic polymer micro powder and a silane coupling agent according to the mass ratio of (1-2): (1-2): 1. Through the synergistic effect of resin modification and the composite reinforcing agent, the coating has excellent wear resistance, high adhesive force, excellent low-temperature flexibility and lasting light reflection performance, and is controllable in cost, convenient to construct and wide in application prospect.

The invention provides an adhesive with high adhesion strength for a low-surface-energy material as well as a preparation method and application of the adhesive, and relates to the field of materials. The adhesive comprises a fluorinated hard segment and a long polymer chain soft segment with a plasticizing effect, the fluorinated hard segment monomer corresponding to the fluorinated hard segment comprises a fluorinated methacrylate monomer; the soft segment monomer corresponding to the long polymer chain soft segment with the plasticizing effect comprises a polyether methacrylate monomer. The preparation method of the adhesive comprises the following steps: mixing the fluorinated hard segment monomer, the soft segment monomer and an initiator to obtain a precursor liquid; and carrying out polymerization reaction on the degassed precursor liquid, and then carrying out vacuum drying to obtain the adhesive. The adhesive provided by the invention has excellent bonding strength, does not need to carry out surface pretreatment on materials, reduces the production cost, and provides a new idea for the development of bonding of low-surface-energy materials.

To provide a semiconductor light-emitting device having high adhesion between a lead frame and a sealing resin and high reliability, and a manufacturing method thereof.SOLUTION: A resin frame is placed on the top of a first lead electrode and a second lead electrode, which are arranged on the same plane with a gap between them, to form a housing. The upper surfaces of the first lead electrode and the second lead electrode form the bottom surface of a recess surrounded by the frame. The light-emitting element is bonded onto the second lead electrode within the recess. A first sealing member is in contact with the bottom surface of the recess around the light-emitting element and the inner wall surface of the frame. The second sealing member covers the light-emitting element and the first sealing member, filling the recess. The resin that forms the frame extends into the gap between the first lead electrode and the second lead electrode, filling the gap. The upper surface of the resin filling the gap is covered with the first sealing member.SELECTED DRAWING: Figure 1