28results about How to "Improve scratch resistance" patented technology

This invention discloses a PETG co-extruded composite sheet and its preparation method. The method involves adding extruder and APET masterbatch to an extruder, then layering and combining the extruder melt and APET masterbatch melt to form a composite melt with an upper and lower layer of extruder and a middle layer of APET masterbatch. This is then shaped by roller pressing to obtain the PETG co-extruded composite sheet. During the blending process of modified polyester and modified filler, the epoxy group structure in the modified polyester molecule can react with the secondary amine in the modified filler, resulting in mild cross-linking and increasing the strength of the polyester material. The modified polyester molecular chain contains polysiloxane segments, and also has polysiloxane segments branched onto its side links. When impacted, the flexible polysiloxane segments absorb and dissipate a large amount of energy through violent movement, rotation, and entanglement. Furthermore, the nano-reinforcing points formed by the cage-like silsesquioxane structure within the molecule contribute to the excellent scratch resistance of the prepared composite sheet.

This invention discloses a highly filled modified PP masterbatch and its preparation method, belonging to the field of polymer material modification technology. The masterbatch, by weight, consists of the following components: 25-30 parts polypropylene, 60-65 parts heavy calcium carbonate, 2-3 parts compatibilizer, 1-2 parts toughening agent, 0.3-0.5 parts compounded antioxidant, 0.5-1.0 parts lubricant, and 0.2-0.3 parts dispersant. This invention achieves a high-filling system with ≥60% calcium carbonate filling through synergistic optimization of the raw material formulation and precise control of the preparation process. This effectively solves the industry pain points of traditional highly filled modified PP masterbatches, such as filler agglomeration, precipitous decline in mechanical properties, and poor processing stability. The finished masterbatch meets national and industry acceptance standards for industrial equipment shells, automotive interior and exterior trim, and functional parts. The raw material cost is reduced by 15-25% compared to traditional modified PP masterbatches. The preparation process of this invention is simple and can achieve stable mass production using existing general-purpose modification equipment. The product qualification rate is ≥98%, demonstrating excellent economic benefits and broad application prospects.

The application discloses a kind of with gradient buffer structure and surface microtexture enjoy floor and its preparation method.The floor includes surface microtexture layer, gradient solidification UV coating, gradient buffer structure, substrate layer and fast lock buckle system.Surface microtexture layer has double texture of pit array and microprojection array, realize wet / dry state antiskid, easy cleaning and scratch resistance.Gradient buffer structure is made of surface layer microresponse layer, core energy absorption layer and bottom stress dispersion layer, realize nonlinear impact response, give consideration to walking stability and fall protection.Through finite element simulation to buffer layer predeformation compensation, eliminate warping;Pit edge stress concentration activates buffer layer, shortens impact response time 15%-25%.The application first realizes the integration of old and pet friendly function, is applicable to home old and pet family, with excellent buffering, antiskid, durable, easy maintenance performance.

This invention provides a liquid metal-based thermal grease, its preparation method, and its application. The liquid metal-based thermal grease comprises the following raw materials in parts by weight: 100 parts liquid metal, 2-5 parts silicone oil, 0.1-20 parts thermally conductive powder filler, and 0.1-3 parts other additives. The high-reliability liquid metal-based thermal grease provided by this invention possesses excellent high thermal conductivity, high processability, and high reliability. It can replace traditional thermal grease to solve the heat dissipation and cooling problem of high-power chips, thereby extending the lifespan of electronic products.

The utility model relates to the technical field of automobile center console panel, and disclose a kind of injection molding's automobile center console panel, including injection integrated center console panel main body, the top of center console panel main body is equipped with function mounting plate, the bottom of center console panel main body is welded with guide column, the bottom of guide column is equipped with guide slot, the bottom of center console panel main body is provided with reinforcing mechanism, the top of center console panel main body is sprayed with polyamide wear-resistant coating;The injection molding's automobile center console panel, by setting horizontal reinforcing rib, longitudinal reinforcing rib and triangular reinforcing block, significantly improve panel deformation resistance under the premise of lightweight, prolong service life, by the cooperation of guide column and guide slot, center console panel main body is quickly and accurately positioned, cooperate the antiskid design of buckle slot, ensure that it is firm and not loose after assembly.

This application provides a housing assembly and an electronic device. The housing assembly includes a housing body, at least partially comprising a light-transmitting area. This light-transmitting area overlaps at least with the orthographic projection of an optical module of the electronic device in the direction of the mid-frame. The optical module includes an emitting optical module and / or an incident optical module. The light-transmitting area allows light emitted by the emitting optical module to pass through, and / or allows light to pass through the housing body and be received by the incident optical module. The light-transmitting area includes a first surface disposed opposite to the electronic device body and a second surface disposed adjacent to the electronic device body. A protective layer is disposed on the first surface, corresponding at least to the optical module, and the Mohs hardness of the protective layer is greater than that of the housing body. Therefore, the housing body of the housing assembly adopts a transparent design, and by providing a protective layer on the outer surface of the light-transmitting area corresponding to the optical module, the problem of easy scratching and abrasion on the housing body is solved.

The application discloses a kind of anti-fake color-changing ink and printing process for flat paper to print two-dimensional code, belong to the technical field of ink for anti-fake.The anti-fake color-changing ink according to weight fraction, including: acrylic emulsion 35-40 parts, polyurethane emulsion 15-20 parts, bisphenol A type epoxy resin 5-8 parts, thermochromic material 6-10 parts, hydrogel coated thermochromic material 2-5 parts, temperature-sensitive color-changing capsule 5-8 parts, scratch-resistant additive 2-3 parts, first coupling agent 1-2 parts, second coupling agent 1-2 parts, leveling agent 0.5-0.8 parts, defoaming agent 0.3-0.5 parts, stabilizer 0.5-0.8 parts, first crosslinking agent 2-3 parts, methylsilane 1-2 parts, wax emulsion 1-2 parts, wetting agent 2-3 parts, preservative 0.1-0.5 parts and deionized water 15-20 parts;The hydrogel coated thermochromic material is acrylamide-based hydrogel coated thermochromic material.The anti-fake color-changing ink can simultaneously realize the promotion of anti-precipitation, high adhesion, scratch resistance, high-temperature aging resistance by the synergy of hydrogel coated thermochromic material and scratch-resistant additive.

This utility model relates to the field of safe box technology, specifically a safe box assembly, including a body, a wear-resistant block, and a docking mechanism. The wear-resistant block is connected to the bottom of the body through the docking mechanism. Several docking mechanisms are provided, each including a circular groove, a circular hole, a first arc-shaped plate, a second arc-shaped plate, a cylinder, and a magnet. The circular groove is located at the bottom of the body, and the circular hole is located on the wear-resistant block, penetrating through it. The first and second arc-shaped plates are both located on the top of the wear-resistant block, and both have protrusions on their outer sides. The inner wall of the circular groove has a groove, and the protrusions match the grooves. One end of the cylinder passes through the circular hole and extends into the gap between the first and second arc-shaped plates. This utility model, a safe box assembly, solves the problem of poor wear resistance in current equipment.

The objective of this invention is to provide a photocurable resin composition capable of forming a cured film with excellent smoothness, adhesion, transparency, abrasion resistance, scratch resistance, crack resistance, and weather resistance. The photocurable resin composition of the present invention is a photocurable resin composition containing urethane (meth)acrylate (A), (meth)acrylate monomer (B), photopolymerization initiator (C) and leveling agent (D). The aforementioned (meth)acrylate monomer (B) contains at least difunctional (meth)acrylate monomer (b1) and hexafunctional (meth)acrylate monomer (b2). The content of the aforementioned urethane (meth)acrylate (A) is 45% by mass or more and 75% by mass or less relative to the solid content of the aforementioned photocurable resin composition. The content of the aforementioned (meth)acrylate monomer (B) is 20% by mass or more and 45% by mass or less relative to the solid content of the aforementioned photocurable resin composition. The content of the aforementioned difunctional (meth)acrylate monomer (b1) is 35% by mass or more relative to the content of the aforementioned (meth)acrylate monomer (B).

The application relates to the field of decorative materials, and discloses a scratch-resistant coating, a decorative film and a preparation method of the scratch-resistant coating. The scratch-resistant coating comprises, in mass fractions, 20-30 parts of intrinsic self-repairing polyurethane resin, 5-15 parts of acrylate, 1-4 parts of fluorosilicon resin, 2-5 parts of reactive spherical matting agent, 0.3-0.5 parts of reactive polysiloxane hardening scratch-resistant agent, 7-10 parts of curing agent and 40-50 parts of solvent. The coating prepared has high scratch resistance.

This application provides a film transfer metal strip structure, relating to the field of metal strip technology. The film transfer metal strip structure includes a metal substrate layer, a reinforcing layer, a film transfer pattern layer, and a transparent protective topcoat layer. A first chemical conversion film layer is disposed on the metal substrate layer; the reinforcing layer is disposed on the side of the first chemical conversion film layer facing away from the metal substrate layer; the film transfer pattern layer is disposed on the reinforcing layer; and the transparent protective topcoat layer is disposed on the side of the reinforcing layer facing away from the first chemical conversion film layer and covers the film transfer pattern layer. The first chemical conversion film layer improves the firmness of the reinforcing layer fixed to the metal substrate layer. The reinforcing layer also improves the firmness of the film transfer pattern layer and the transparent protective topcoat layer fixed to the metal substrate layer. The transparent protective topcoat layer protects the internal film transfer pattern layer, reinforcing layer, and metal substrate layer, thereby improving the scratch resistance and weather resistance of the entire film transfer metal strip structure.

This invention discloses a high-strength and tough polyurethane four-proof topcoat for the surface of a silicone rubber heat-insulating layer and its preparation method. The topcoat comprises a surface treatment layer and a polyurethane topcoat. The surface treatment layer includes the following components (by weight): Component A: 40-80 parts film-forming material, 16-32 parts multifunctional organic filler, 24-48 parts inorganic reinforcing filler, and 40-80 parts solvent. Component B: titanate. The polyurethane topcoat comprises 40-60 parts film-forming material, 1-5 parts low surface energy modifier, 50-30 parts inorganic reinforcing filler, 1-5 parts functional additives, and 10-30 parts diluent in component A; component B includes 7-9 parts aliphatic isocyanate and 1-3 parts isocyanate prepolymer. This invention can be applied to the surface of silicone rubber heat protection layers. While meeting the environmental protection requirements of silicone rubber heat protection layer surfaces, it can achieve good bonding performance and thermo-mechanical compatibility with the silicone rubber heat protection layer, and effectively improve the stain resistance and scratch resistance of the environmental protection coating on the surface of the silicone rubber heat protection layer, thereby improving the reliability and appearance quality of silicone rubber heat protection layer products.

The application discloses an anti-impact and anti-scratching automobile hub cover and a preparation method thereof, and relates to the technical field of high polymer materials.The automobile hub cover comprises at least: 100 parts of nylon 6 resin; 5-15 parts of bismaleimide resin prepolymer; 10-15 parts of hydrogenated styrene-butadiene block copolymer grafted maleic anhydride; 10-20 parts of modified basalt fiber; 5-15 parts of modified polyarylate fiber; 0.2-0.5 parts of antioxidant; 0.3-0.8 parts of light stabilizer; 2-4 parts of color master batch; 0.3-0.8 parts of lubricant; the bismaleimide resin prepolymer is prepared by mixing 4,4'-diphenylmethane bismaleimide and 2,2'-diallyl bisphenol A; the modified basalt fiber is co-precipitated and modified by polydopamine, polyethyleneimine and octaamino cage-shaped polyhedral oligomeric silsesquioxane functionalized graphene oxide; and the modified polyarylate fiber is co-precipitated and modified by polydopamine and polyethyleneimine.The automobile hub cover prepared by the application has low moisture absorption, high impact resistance and excellent scratch resistance.

The present application relates to the technical field of building construction, in particular to a medical spliced antibacterial medical board construction method, comprising the following steps: A, wall surface quality acceptance; B, line marking; C, drilling and inserting screw sleeve; D, installing keel; E, installing fastener; F, installing antibacterial medical board; G, sealing glue; The construction method has the advantages of simple construction process, less construction procedure, high quality reliability and the like; The construction speed can be greatly improved by using the construction method, and the construction period is shortened; Further, the antibacterial medical board adopts a "dry hanging" fixing mode, which ensures the safety of the system; Compared with the phenolic resin board construction, the fireproof grade, wear resistance, formaldehyde content, moisture resistance, stain resistance, scratch resistance and other performances are significantly improved, so that the construction process is more environmentally friendly and safe.

This disclosure relates to a method for producing a coating (2), the method comprising applying a coating composition to the surface of a carrier (1), curing the coating composition into a coating (2), and then applying pressure to the coating (2). This disclosure also relates to a method for producing architectural panels, and such architectural panels, and to a method for producing coated foil, and such coated foil.

This invention relates to a high moisture-barrier and scratch-resistant protective film base for polarizers. The base film, from bottom to top, comprises a functional bonding layer: intercalated modified montmorillonite, graphene nanosheets, an antistatic agent, and optical-grade PET; an adhesive layer; and an outer wear-resistant layer: wear-resistant modified PET, functional nanofillers, UV absorbers, and optical-grade PET. The functional bonding layer of this invention contacts the pressure-sensitive adhesive of the polarizer. The unique intercalated modified montmorillonite combined with graphene nanosheets enhances the film's moisture barrier properties, providing long-term protection for the polarizer's core layer. Simultaneously, the introduction of an antistatic agent ensures no risk of electrostatic discharge damage during protective film peeling. The outer wear-resistant layer, through the synergistic effect of modified PET containing silicon and naphthalene rings and functional nanofillers, improves the film's hardness and scratch resistance. The intermediate adhesive layer effectively solves the compatibility problem between the functional bonding layer and the outer surface layer, ensuring the stability and strength of the multilayer co-extruded structure.

The application discloses a kind of glass hydrophobic coating and preparation method thereof, the coating includes following weight parts raw materials: methyl acrylate 15-20 parts, butyl acrylate 25-30 parts, modified monomer 5-10 parts, glycidyl methacrylate 8-10 parts, modified additive 1.5-3 parts, 2,6-di-tert-butyl-p-cresol 0.1-0.3 parts, 2-hydroxy-2-methyl-1-phenyl-1-propanone 2-3 parts, adipic acid dihydrazide 3.5-4 parts and dimethylbenzene 40-60 parts, coating film surface contains fluorine-containing alkane polysiloxane, so that the hydrophobic property of smearing is greatly improved, in coating curing process, methoxy in modified additive will hydrolyze to generate silanol, a part is condensed with the silanol on glass surface and forms firm Si-O-Si bond, and then the adhesion of coating film is increased, the POSS cage in modified additive is the nanometer core of inorganic silicon dioxide, so as to improve the surface hardness and scratch resistance of coating.

The application discloses a kind of flame-retardant ageing-resistant polyolefin cable material, preparation method and the cable made by the cable material.The ingredients of the flame-retardant ageing-resistant polyolefin cable material include polyethylene 20-40 parts by weight, polyolefin elastomer 20-30 parts by weight, organic compatilizer 5-10 parts by weight, modified nano-aluminum hydroxide / hexagonal boron nitride nanocomposite powder 5-15 parts by weight and flame retardant 10-30 parts by weight.The flame-retardant ageing-resistant polyolefin cable material provided by the application has good mechanical properties and scratch resistance, and has high flame retardant performance, suitable for cable industry.

The utility model discloses a new energy automobile front upper cross beam relates to new energy automobile structural component technical field, solves the current new energy automobile front upper cross beam, difficult to realize lightweight at the same time, difficult to keep the technical problem of better support effect, including upper cross beam, the inside of upper cross beam is hollow structure, and the bottom surface is equipped with a plurality of mounting slots, reinforcing buffer structure, reinforcing buffer structure includes a plurality of fixed mounting in the connecting block of upper cross beam bottom mounting slot, fixed mounting in the pressure block of upper cross beam top surface inner wall and respectively corresponding each connecting block and fixed mounting between each pressure block and connecting block buffer compression spring, the utility model discloses a plurality of reinforcing buffer structure are designed in upper cross beam, when upper cross beam in the use process, this design makes upper cross beam adopt hollow structure to realize the lightweight of car body at the same time, can also satisfy the demand of good support and buffer effect, thereby effectively improves the service life of upper cross beam.

The application relates to a preparation method of high-performance high-flexibility formaldehyde-free impregnated film paper and application thereof, and belongs to the technical field of impregnated film paper. The application aims to solve the problems that the existing impregnated film paper cannot simultaneously have high strength, high toughness, crack resistance, scratch resistance, wear resistance and formaldehyde-free release, and the low adhesive transparency influences the paper texture. Preparation: 1, adjusting the pH of polyamide epoxy chloropropane resin; 2, preparing polyvinyl alcohol / melamine adhesive; 3, impregnating the decorative base paper in the polyamide epoxy chloropropane resin after the pH is adjusted, then drying to obtain primary impregnated paper, and then impregnating the primary impregnated paper in the polyvinyl alcohol / melamine adhesive at room temperature, and then drying to obtain high-performance high-flexibility formaldehyde-free impregnated film paper. Application: the high-performance high-flexibility formaldehyde-free impregnated film paper is used as a veneer material of artificial board.

This invention belongs to the field of automotive coating technology, specifically relating to a wet-on-wet waterborne automotive intermediate coating based on interface self-reinforcement and multi-network synergy, its preparation method, and application. It consists of the following components: a waterborne main resin system, amino resin, an aqueous solution of zirconium carbonate ammonium, polyethylene glycol-block-polycaprolactone-urea copolymer, flash-drying wax emulsion, a volatile pH adjuster, solvent, additives, waterborne colorant, and water. The intermediate coating of this invention utilizes the thermosensitive properties of zirconium carbonate to rapidly form an ionic cross-linked network during flash-drying, instantly enhancing wet film strength and fundamentally preventing problems such as undercoating and bleeding. Through the synergistic effect of the chemical cross-linking of the amino resin and the dynamic hydrogen bond network of the thermosensitive hydrogen bond enhancer, the coating film simultaneously possesses high hardness, chemical resistance, and excellent flexibility and stone chip resistance. The flash-drying wax emulsion forms a network on the coating film surface, improving scratch resistance; during baking, it melts and interpenetrates with the upper and lower coatings, forming a reinforced interface and locking in interlayer adhesion.

The application relates to a stain-resistant decorative paper and a preparation method thereof. The stain-resistant decorative paper comprises impregnated paper and a stain-resistant coating layer coated on the outer surface of the impregnated paper, wherein the stain-resistant coating layer is formed by curing a stain-resistant coating material on the impregnated paper; the stain-resistant coating material comprises the following raw materials in parts by weight: modified acrylic resin 40-50 parts, bisphenol A epoxy acrylate 15-20 parts, ethoxylated trimethylolpropane triacrylate 10-15 parts, nano-silicon dioxide 5-9 parts, nano-zinc oxide 4-8 parts, polyoxyethylene ether 3-5 parts, film-forming aid 2-4 parts, photoinitiator 2-4 parts, ethyl acetate 5-10 parts, and water 20-30 parts. The stain-resistant decorative paper has good stain resistance, wear resistance and scratch resistance, and has a long service life; the preparation method is simple in process, convenient to operate, high in production efficiency, and beneficial to industrial production.

This invention provides a biomass composite decorative paper reinforced with nanocellulose and its preparation method, belonging to the field of decorative paper technology. This application constructs a multifunctional synergistic biomass composite material through chemical modification and in-situ self-assembly strategies: negatively charged modified nanocellulose serves as the framework, and positively charged cationic chitosan acts as an electrostatic bridge, efficiently fixing optically functional carbon quantum dots and fillers, improving dispersibility and retention. The introduced tannic acid-zinc metal-organic network precursor is cross-linked and cured under hot pressing to form a chemical network, endowing the material with excellent wet strength and antibacterial properties. The system forms a physical and chemical interpenetrating network, achieving structural synergy. The functional components also protect and complement each other through UV shielding, synergistic antibacterial properties, and other means, jointly endowing the material with excellent and durable comprehensive performance.

This invention relates to the field of thermal sublimation printing technology, specifically to a thermal sublimation ribbon, a re-transfer film, and a transfer method suitable for printing PET ID cards. The ribbon has a base coating layer on one side of the substrate, and a dye layer on the base coating layer; it also includes an adhesion promoting layer; the adhesion promoting layer includes a release layer and an adhesive layer, with the release layer disposed on one side of the substrate and the adhesive layer disposed on the release layer. When this ribbon is used in conjunction with the re-transfer film, the pattern can be printed onto the re-transfer film first through the dye layer, and then the adhesion promoting layer can be printed onto the pattern layer. The release layer ensures complete transfer of the adhesion promoting layer, and the adhesive layer improves the adhesion of the pattern to the PET ID card, increasing the color density and durability of the ID card image.

The utility model relates to an automatic nail feeding mechanism, including nail feeding head, the nail guide strip of shape and the nail shape matching and the nail pushing device, the nail guide strip is metal nail guide strip, and the nail guide strip is used for the nail row to place and slide, the nail feeding head is used for limiting the nail row every time the number of nail feeding, the front end of nail guide strip connects the nail feeding head, the nail pushing device includes the coil spring subassembly and is used for pushing the nail row to move the nail pushing paw, the upper portion of nail pushing paw stretches out to the direction of the nail guide strip for contacting the nail row, the coil spring subassembly and nail pushing paw are connected, and the coil spring subassembly constitutes the motive source of nail pushing paw. Adopt metal nail guide strip to replace traditional plastic guide strip, significantly improve the smoothness of the nail row in the sliding process, reduce the risk of jam and accumulation, thereby improve the nail feeding efficiency and operation continuity, metal nail guide strip has higher wear resistance and scratch resistance, can still keep the precision and stability in long time, large quantities of nailing operation, greatly prolong the service life.