686 results about "Methyl acrylate" patented technology

The invention discloses a repulpable and degradable PHA heat-seal barrier coating and a composition thereof, and belongs to the field of water-based functional coatings and cellulose-based packaging materials. The coating composition is prepared from the following components in percentage by non-volatile solids: 30 to 85 weight percent of polyhydroxyalkanoate emulsion, 5 to 60 weight percent of flaky natural inorganic matters, a water-based cross-linking agent and an auxiliary agent, and 1 to 20 weight percent of ethylene-acrylic acid or ethylene-methyl acrylate dispersion can be selected. The pH value of the composition is 6.5-9.0, and organic fluorine is not artificially added. When the dry weight is 6-20 g / m, the coating meets at least one of the following four items: the water vapor transmission rate (38 DEG C, 90% RH) is less than or equal to 80 g / m.d, Cobb60 is less than or equal to 15 g / m, the oil resistance grade is greater than or equal to 11, and the laboratory repulping rate is greater than or equal to 98%; and the heat-sealing peel strength is greater than or equal to 2.5 N / 15mm under the conditions of 150 DEG C, 0.2 MPa and 0.5 s. And the coating and the stripping film thereof meet the industrial composting standard.

The invention relates to an epoxy core-shell polymer particle and resin, a preparation method of the epoxy core-shell polymer particle and resin and application of the epoxy core-shell polymer particle and resin to epoxy resin. The preparation method of the epoxy core-shell polymer particle comprises the following steps: heating and mixing a polybutadiene seed emulsion, a reducing agent, an emulsifier and the like; adding methyl methacrylate and an initiator, and glycidyl methacrylate and an initiator, and heating to react; compared with the prior art, the core-shell particle with the outer layer of the synthesized shell containing the epoxy group can be used for toughening the epoxy resin, so that the toughness of the epoxy resin is effectively improved while the excellent heat resistance and mechanical properties of the epoxy resin are maintained.

The invention discloses a biodegradable polylactic acid composite material and a preparation method thereof, and relates to the technical field of polylactic acid materials. The method comprises the steps that firstly, chitosan activated through hydrochloric acid is subjected to graft modification through a KH550 silane coupling agent, meanwhile, nano-zinc oxide is subjected to surface modification through stearic acid, the chitosan and the nano-zinc oxide are mixed, spray drying is conducted, and antibacterial composite powder is prepared; the preparation method comprises the following steps: performing hydrochloric acid activation and KH570 silane coupling agent modification on nano silicon dioxide, performing hydroxypropylation modification on alkali lignin, and performing reflux crosslinking reaction on the modified alkali lignin, KH570 modified nano silicon dioxide, polycaprolactone, methyl methacrylate and azodiisobutyronitrile to prepare a heat-resistant reinforcer; uniformly mixing polylactic acid, poly (butylene succinate), the antibacterial composite powder, the heat-resistant reinforcer, tributyl citrate, polyethylene glycol and talcum powder, and extruding and granulating by using a twin-screw extruder to obtain the heat-resistant antibacterial material. The composite material prepared by the invention has excellent antibacterial property, heat resistance and biodegradability.

The invention relates to the technical field of oilfield chemistry, in particular to an aminoethanesulfonic acid type surfactant and a preparation method and application thereof.The preparation method of the aminoethanesulfonic acid type surfactant comprises the steps that firstly, fatty amine is dissolved in a first solvent, a sodium chloroethanesulfonate aqueous solution is added, and N-long-chain alkyl-2-sodium aminoethanesulfonate is obtained through a reaction; and 2, dissolving a required amount of N-long-chain alkyl-2-sodium aminoethanesulfonate in a second solvent, adding a required amount of methyl acrylate, and reacting to obtain the aminoethanesulfonic acid type surfactant. The aminoethanesulfonic acid type surfactant disclosed by the invention contains long-chain alkyl, amino, ester groups and sulfonic acid groups, so that the aminoethanesulfonic acid type surfactant has good surface activity and can meet the development requirements of oil and gas fields. The microemulsion cleanup additive prepared from the aminoethanesulfonic acid type surfactant can effectively reduce the surface tension and the interfacial tension of an aqueous solution, and the preparation method is easy and convenient to operate, mild in condition and suitable for industrial production.

The invention discloses an OCA (Optical Clear Adhesive) solution for a folding screen protective film, the OCA solution comprises an optical raw adhesive, a curing agent and a first solvent, the raw adhesive is prepared from the following raw materials in parts by mass: 270-283 parts of 2-ethylhexyl acrylate, 50-62 parts of butyl acrylate, 318-330 parts of methyl acrylate, 40-55 parts of acrylic acid, 1-2 parts of gamma-acryloyloxypropyltrimethoxysilane, 2.1-2.3 parts of an initiator and 1250-1350 parts of a second solvent; the second solvent comprises methylbenzene and ethyl acetate. According to the OCA optical glue solution for the folding screen protection film, raw glue is prepared from the isooctyl acrylate, the butyl acrylate, the methyl acrylate, the acrylic acid, the gamma-acryloyloxy propyl trimethoxy silane and the initiator in a toluene and ethyl acetate compounded solvent system, and an OCA glue layer with excellent stripping force, light transmittance, holding power and bending resistance is obtained after curing; and the cost of the raw materials is optimized, and the method is more economical.

The invention discloses a high-temperature-resistant flame-retardant CPVC power cable protection pipe and a preparation method thereof, and relates to the technical field of cable protection pipes. The high-temperature-resistant flame-retardant CPVC power cable protection pipe at least comprises the following raw materials in parts by mass: 100 parts of chlorinated polyvinyl chloride; 15 to 25 parts of high impact resistance type MCS resin; 8 to 12 parts of poly (1, 2-propylene glycol adipate); 12 to 20 parts of a sepiolite-methyl methacrylate-butyl acrylate compound; 8-15 parts of aluminum-titanium composite coupling agent modified magnesium-aluminum-lanthanum hydrotalcite; 3-6 parts of a rare earth composite heat stabilizer; 2-4 parts of a processing aid; 0.5 to 1.5 parts of an antioxidant; and 1-2 parts of a lubricant. The prepared high-temperature-resistant flame-retardant CPVC power cable protection pipe has high heat resistance, high flame retardance and high impact resistance, and is excellent in comprehensive performance, high in safety and reliability and long in service life.

The invention belongs to the technical field of acrylic plates, and particularly relates to a continuous casting high-hardness acrylic plate and a preparation method thereof.The preparation method comprises the steps that siloxane modified methacrylic acid, methyl methacrylate and n-butyl methacrylate are mixed, an azo initiator is added into the mixture, and then stirring and mixing are conducted to obtain pre-polymerized slurry; the preparation method comprises the following steps: mixing hydroxyl-terminated ether polysiloxane, isophorone diisocyanate and a catalyst dibutyltin dilaurate, reacting to obtain a macromolecular prepolymer, and then adding an end-capping reagent and a photoinitiator into the macromolecular prepolymer to obtain coating slurry; and injecting the pre-polymerized slurry between two annular steel belts which operate synchronously, coating the two annular steel belts with the coating slurry, and carrying out ultraviolet curing to obtain the high-hardness acrylic plate. Through ultraviolet curing, a high-hardness layer is formed outside the acrylic plate, polyurethane is modified by hydroxyl-terminated ether polysiloxane, the rigidity of a soft chain segment is improved by a polysiloxane chain segment, and the hardness of polyurethane is improved.

An extreme-cold resistant low-fume halogen-free flame-retardant polyolefin sheath, a preparation method therefor, and a cable. The sheath comprises the following raw materials in parts by mass: 4-16 parts of an ethylene-vinyl acetate copolymer, 7-13 parts of a phosphate group functionalized linear low-density polyethylene, 9-15 parts of an ethylene-octene copolymer, 5-10 parts of a maleic anhydride-grafted ethylene-methyl methacrylate copolymer, 10-15 parts of magnesium hydroxide, 40-50 parts of aluminum hydroxide, etc. The preparation method for the phosphate group functionalized linear low-density polyethylene comprises: adding a catalyst to a pre-cooled ethylene monomer, adding a vinyl phosphate ester and an initiator after the reaction, and reacting for 1-2 hours at a temperature of 65-75°C and a pressure of 15-35 Mpa and then terminating the reaction, thereby obtaining the phosphate group functionalized linear low-density polyethylene. Compared with unfunctionalized polyethylene, the phosphate group functionalized polyethylene used has greatly improved low-temperature and flame-retardant performance, and can improve the overall flame-retardant and low-temperature performance of the formula.

The invention discloses a super-tough temperature-resistant self-repairing copolymer based on SBS acrylate dynamic synergistic reinforcement and a preparation method thereof, and belongs to the technical field of self-repairing materials in compositions of high-molecular compounds. The copolymer comprises SBS, an acrylate monomer, a dynamic bond functional monomer, an initiator, a cross-linking agent, a nano reinforcing agent and a temperature-resistant modifier, wherein the dynamic bond functional monomer comprises at least one of acryloyloxyethyl disulfide, acrylamide acryloyloxyethyl disulfide or anthracene methyl acrylate. The molecular structure of the dynamic bond functional monomer contains a carbon-carbon double bond and a disulfide bond, in the free radical polymerization reaction initiated by the initiator, the carbon-carbon double bond is opened and is subjected to a copolymerization reaction with an SBS chain segment or an acrylate chain segment, so that the disulfide bond enters the polymer chain segment, the dynamic disulfide bond can be reversibly broken and recombined at high temperature, and the dynamic bond functional monomer is obtained. The high-temperature viscoelasticity is maintained, the material is endowed with self-repairing capability, and the problem that the viscoelasticity of the material in the prior art is sharply reduced at high temperature (gt; 120 DEG C) is solved.

The present invention discloses a conductive slurry for lithium-ion battery positive electrodes. The slurry comprises the following substances: 1-2 parts graphene, 4-5 parts modified polymer, and 90-100 parts N-methylpyrrolidone, by weight. The modified polymer is prepared by mixing modified carbon nanotubes, acrylonitrile, methyl acrylate, sodium methacrylic acid sulfonate, and deionized water, stirring at room temperature for 30-40 minutes, then introducing nitrogen to deoxygenate for 1-2 hours, then adding ammonium persulfate, and heating the mixture to 60-70°C under a protective atmosphere for 3-4 hours. The mixture is then heated to 90-100°C and allowed to react for 3-4 hours. After the reaction is complete, the mixture is filtered, washed, and dried to obtain the modified polymer. Advantages: The present invention chemically modifies the surface of carbon nanotubes, allowing them to participate in the synthesis of the modified polymer (polyacrylonitrile binder), resulting in the slurry having good electrical conductivity and stability in battery applications.

The present application relates to the field of cosmetic technology, in particular to a quick-drying and shaping spray and a preparation method thereof, in particular to a hair styling product which is quickly dried, permanently shaped and has hair care effect through the synergistic effect of specific film-forming agents and volatile systems, comprising the following components: ethanol 30-50%, aminomethyl propanol 0.1-1%, butanediol 1-5%, octyl acrylamide / acrylate / methyl acrylate copolymer 5-15%, PEG-12 dimethicone 0.5-2%, keratin 0.1-2%, hydrolyzed keratin 0.1-2%, oxidized keratin 0.1-2%, aloe barbadensis leaf extract 0.5-3%, selaginella kurata extract 0.5-3%, radix falatoniae extract 0.5-3%, radix salviae miltiorrhizae extract 0.5-3%, water 20-40%, essence 0.1-2%, cetrimonium chloride 0.1-1%, phenoxyethanol 0.5-1.5%, propylene glycol 1-5%, p-hydroxyacetophenone 0.5-1.5%, chlorphenesin 0.1-0.5%, ethylhexylglycerin 0.5-1.5%.

The invention discloses an insulating nano ceramic resin composite coating. The preparation method comprises the following steps: 1, mixing methyl methacrylate and butyl acrylate, and dropwise adding the mixture into an aqueous solution containing an emulsifier, an initiator and a buffer agent under a protective atmosphere for reaction to obtain a seed emulsion; and 2, emulsifying the modified filler, methyl methacrylate, butyl acrylate, an emulsifier and water, adjusting the pH value, and dropwise adding into the seed emulsion and the initiator under a protective atmosphere to react. And then cooling and adding a redox initiation system for continuous reaction to finally obtain the composite coating. The preparation method has the beneficial effects that the hexagonal boron nitride nanosheets are subjected to surface functionalization treatment by synthesizing a multifunctional modifier, so that the dispersity and interface bonding performance of filler in a resin matrix are remarkably improved, and the coating has excellent insulativity, strong adhesive force, good flame retardance and outstanding corrosion resistance at the same time.

The application provides a hindered amine light stabilizer and a preparation method thereof, and the preparation method comprises the following steps: putting N, N-bis(2, 2, 6, 6-tetramethyl-4-piperidyl) 1, 6-hexanediamine and an organic solvent into a reaction bottle, heating to 50-80 DEG C, adding methyl acrylate into the system dropwise, obtaining an intermediate I through an addition reaction, and then obtaining a crude product through an ester exchange reaction of the intermediate I and tetramethylpiperidinol in the presence of a catalyst and an organic solvent, washing with water, decoloring, filtering, cooling and crystallizing, filtering and drying to obtain the product; the light stabilizer obtained by the application has multiple hindered amine functional groups, has good heat resistance and extraction resistance, and has good compatibility with resin.

The invention discloses a modified polylactic acid composite material and application thereof. The modified polylactic acid composite material comprises the following raw materials in percentage by weight: 15-50% of polylactic acid; 15 to 50% of poly (butylene succinate); 15 to 50% of poly (butylene adipate-co-terephthalate); 1-5% of a compatibilizer; 0.1-1% of an antioxidant; 0.1-5% of a release agent; 0.1-1% of a melt flow regulator; 0.1-5% of a nucleating agent; 0.1-1% of an anti-hydrolysis agent; wherein the compatibilizer comprises an elastomer containing an epoxy group, an elastomer containing a maleic anhydride group, an ethylene-methyl acrylate random copolymer and an ethylene-butyl acrylate copolymer, and the weight ratio of the elastomer containing the epoxy group to the elastomer containing the maleic anhydride group is 1: 4-4: 1. The modified polylactic acid composite material has good fluidity and mechanical properties, and is suitable for preparing the cable tie by adopting an injection molding mode.

The present invention relates to the field of fabric technology, and discloses an antibacterial and deodorizing nylon fabric and a preparation method thereof. The preparation method of the antibacterial and deodorizing nylon fabric comprises the following steps: reacting mercaptoethylamine with eugenol to obtain an intermediate product; modifying nano-titanium dioxide with a silane coupling agent KH560 and the intermediate product in sequence, and then mixing with nylon 56, ethylene-methyl acrylate-glycidyl methacrylate terpolymer, and polyhexamethylene guanidine; co-extruding, pelletizing, and melt spinning to obtain modified bio-based nylon 56 filaments; soaking the modified bio-based nylon 56 filaments in a polyacrylic acid / water solution and weaving them into bio-based nylon 56 fabric; and treating the bio-based nylon 56 fabric with an antibacterial and deodorizing finishing solution to obtain the antibacterial and deodorizing nylon fabric. The antibacterial and deodorizing nylon fabric of the present invention has excellent antibacterial and deodorizing properties and washability.

The invention discloses a solid waste-based composite cementing material and a preparation method thereof, and relates to the technical field of solid waste regeneration. The silicon dioxide is subjected to copper plating treatment and then added into the concrete, so that the strength of the concrete is enhanced. The methyl acrylate and the poly (ethylene glycol) methacrylate are used for modifying the carbon fibers, so that the hydrophilicity of the modified carbon fibers is enhanced, the compatibility of the modified carbon fibers and a concrete base material becomes good, the porosity of the concrete base material is reduced, and the strength of the concrete base material is enhanced. The copper-plated silicon dioxide and the modified carbon fiber are compounded together, and the carbide slag, the fly ash and the silica fume are modified by using gamma-aminopropyltriethoxysilane, so that the dispersity of the copper-plated silicon dioxide is improved, the compatibility of the silicon dioxide-carbon fiber compound in a concrete base material becomes good, and the strength of the concrete base material is enhanced.

The invention relates to the technical field of cables, and provides a high-strength corrosion-resistant flexible cable which sequentially comprises a sheath layer, an insulating layer and a conductor from outside to inside, the sheath layer comprises the following components in parts by weight: 90 parts of composite polyvinyl chloride, 10-15 parts of high-density polyethylene, 6-12 parts of ethylene propylene diene monomer, 3-6 parts of ethylene-methyl methacrylate copolymer, 10-20 parts of filler, 1-2 parts of antioxidant, 2-4 parts of plasticizer, 15-18 parts of flame retardant and 0.5-0.7 part of vulcanizing agent; the preparation method of the composite polyvinyl chloride comprises the following steps: putting polyvinyl chloride into a plasma treatment device, vacuumizing, introducing a plasma gas source, and carrying out etching treatment to obtain the composite polyvinyl chloride, the plasma gas source comprises hexafluoroacetone and methylsilane in a volume ratio of (3-9): 1. According to the technical scheme, the problem of poor corrosion resistance of the cable sheath layer in the prior art is solved.

The utility model discloses a storage system and transportation equipment for methyl acrylate, comprising a liquid storage tank, which is internally provided with a liquid storage cavity and is provided with a liquid inlet pipe and a liquid outlet pipe which are communicated with the liquid storage cavity; the gas supply unit is communicated with the storage cavity through a gas inlet pipe and is used for providing oxygen-containing and / or nitrogen-containing gas for the methyl acrylate liquid stored in the storage cavity; and the main exhaust pipe is communicated with the liquid storage cavity and is used for exhausting the free gas which is not dissolved into the methyl acrylate liquid in the liquid storage cavity. The methyl acrylate storage system has the advantages that by arranging the storage system with the liquid storage tank, a supplier can transport methyl acrylate through a tank car, secondary transferring is not needed in the production and use process, the safety coefficient of materials in the storage and transportation process is improved, and the use cost is reduced; moreover, by introducing the polymerization inhibition gas, the self-polymerization of the methyl acrylate can be effectively prevented, so that the long-time storage of the methyl acrylate is realized, the purity of the material is not reduced by the polymerization inhibition gas, and the subsequent polymerization reaction rate is accelerated.

The invention relates to the technical field of MBS resin preparation, in particular to MBS resin with improved low-temperature tensile strength and a preparation method thereof. The MBS resin for improving the low-temperature tensile strength is prepared from the following main raw materials: butadiene, styrene, methyl methacrylate, butyl acrylate, N-phenylmaleimide, BAPT, a silane coupling agent and an auxiliary reinforcing monomer, the composition also comprises the following auxiliary agents: an emulsifier, an initiator, a molecular weight regulator and an antioxidant. Through gradient introduction and step-by-step reaction of a rigid monomer N-PMI, a flexible monomer THFA and a cross-linking agent BAPT, a fine structure of'in-core rigidity increasing, shell layer rigidity and softness and interface strengthening 'is realized in polymer particles. By means of the collaborative structure from inside to outside, optimal distribution of rigidity and toughness of the material on the molecular level is achieved in advance, and the root reason for breaking through the low-temperature performance balance bottleneck macroscopically is achieved.

The application discloses a quinoline small molecule blended modified polymer dielectric material and a preparation method and application thereof, and belongs to the technical field of capacitor films. The preparation raw materials comprise quinoline derivatives, polymethyl methacrylate, styrene-methyl methacrylate copolymer, polyetherimide, polypropylene and N-methyl pyrrolidone solution, and the preparation steps comprise blending and film preparation. The blending solution or eutectic mixture is prepared through blending, and the polymer dielectric film is prepared through a flow casting method or bidirectional stretching. The prepared quinoline small molecule blended modified polymer dielectric film has excellent electrical properties, can reduce the leakage current of the polymer material, has high DC breakdown field strength, high energy storage density and low energy loss, and is easy to realize large-scale production.

The invention discloses a non-woven fabric made of Juncao fibers, and belongs to the technical field of textiles. The non-woven fabric made of the Juncao fibers is obtained by opening and mixing modified Juncao regenerated cellulose fibers, carding to form a net and needling and reinforcing; the modified pennisetum sinese regenerated cellulose fiber is prepared by the following steps: dipping dried pennisetum sinese pulp, squeezing, carrying out graft copolymerization on the squeezed dried pennisetum sinese pulp, 2-acrylamide-2-methylpropanesulfonic acid and benzaldehyde PEG acrylamide under the catalysis of ceric ammonium nitrate, dissolving, then adding chamomile essential oil microcapsules, reacting, and spinning. The chamomile essential oil microcapsule is prepared by the following steps: dispersing chamomile essential oil into a continuous phase containing an allyl monomer by an SPG membrane emulsification method to form a microemulsion, and preparing the chamomile essential oil microcapsule by combining an interfacial polymerization method; wherein the allyl monomer is prepared from methacrylic acid, methyl methacrylate, pentaerythritol tetraacrylate and N-(4-acetylphenyl) prop-2-acrylamide.

The invention provides a mesoporous nanosphere acid-base bifunctional catalyst for synthesizing methyl methacrylate and a preparation method of the mesoporous nanosphere acid-base bifunctional catalyst. The acidic metal ions are introduced into the skeleton of the mesoporous MCM-41 carrier as a modifier, the alkaline active site Cs species are loaded, and the good acid-base balance degree is achieved by regulating and controlling the proportion of the CS species and the acidic metal ions. The composition of the catalyst is Csa / Xb-MCM-41, X is selected from one or two of Zr, Ti, Al, La, Ce and Fe, and a is the mass fraction of Cs species calculated on the basis of a carrier and is 0.08-0.30 in terms of Cs2O; and b is the mass fraction of the oxide corresponding to the element X in the MCM-41 carrier, and is 0.04-0.20. When the catalyst provided by the invention is used for synthesizing methyl methacrylate through reaction of methyl propionate and formaldehyde, excellent catalytic activity and carbon deposition resistance are shown.

The invention provides a preparation method of a hydrophobic silver nanoparticle doped coating, which comprises the following specific steps: preparing silicon shell silver chloride nanoparticles (AgCl (at) SiO2NPs) by taking cetyltrimethylammonium chloride (CTAC), silver nitrate, sodium chloride and tetraethyl orthosilicate (TEOS) as raw materials through a one-pot method, and introducing carbon-carbon double bonds by 3-(methacryloyloxy) propyltrimethoxysilane (MPS) under an acidic condition. In the subsequent distillation-precipitation polymerization process, 4-chloromethyl styrene (VBC) is grafted with chloromethyl, and finally, perfluoropolyether methyl acrylate (PFPEMA) is introduced through atom transfer radical polymerization (ATRP) to form AgCl (at) SiO2-F NPs. Nanoparticles are added into polydimethylsiloxane (PDMS) to be evenly mixed, a silica gel catheter is used for pulling and curing to form the hydrophobic nanoparticle coating SR-F. The hydrophobic nanoparticle coating SR-F is mature in step, firm in film and good in hydrophobicity, and experimental results show that the coating has long-acting antibacterial ability.

The application relates to a method for continuously preparing imidacloprid intermediate 3-methyl-2-(4-morpholinyl)cyclobutyl acid methyl ester, and the specific steps are as follows: raw material morpholinyl propylene and methyl acrylate are respectively introduced into a preheater, then the preheated raw materials are pumped into a micro-channel reactor for reaction, after the reaction is completed, the materials are discharged from the micro-channel reactor outlet into a reaction kettle, reaction is carried out, then the cyclization liquid obtained in the reaction kettle is subjected to light removal in a light removal tower, 3-methyl-2-(4-morpholinyl)cyclobutyl acid methyl ester after light removal is collected from the tower kettle of the light removal tower, the 3-methyl-2-(4-morpholinyl)cyclobutyl acid methyl ester is introduced into a pentyl ester synthesis process, and the recovered methyl acrylate collected from the top of the light removal tower is reused in the reaction kettle to participate in the ripening reaction. The application has the advantages of high product purity, low raw material unit consumption, good safety, low labor cost and the like.

The invention discloses an acidic waste liquid treatment device for methyl methacrylate production, and relates to the technical field of waste liquid treatment devices.The acidic waste liquid treatment device comprises a treatment box, a feeding pipe is fixedly installed on the side wall face of the treatment box, and a liquid inlet pipe is fixedly installed on the other side wall face of the treatment box. A neutralized and precipitated reagent is guided into a feeding pipe, a driving stirring assembly is started to drive a frame to rotate, then the frame stirs and mixes the waste liquid and the reagent, meanwhile, an aeration machine blows air, the waste liquid and the reagent are aerated and mixed through an aeration spray head, and when the frame rotates, the waste liquid and the reagent are mixed through the aeration spray head. The inner wall face of the treatment box is cleaned through a scraper blade, sediments are prevented from being attached to the inner wall face of the treatment box, at the moment, the sediments and liquid in the waste liquid are settled, a discharging pipe is opened after settling, the sediments and the liquid enter a filtering assembly at the same time, then the sediments are filtered, and the liquid is discharged through a liquid outlet pipe.

The application relates to the field of decorative materials, in particular to a wear-resistant decorative paper and a preparation method thereof. The preparation method of the wear-resistant decorative paper comprises the following steps: coating wear-resistant paint on the surface of base paper to form a wear-resistant coating layer through drying treatment, so that the wear-resistant decorative paper is prepared; the wear-resistant paint is prepared by using acrylic acid hydroxy ester, ethyl acrylate and methyl methacrylate, so that the wear-resistant paint has good adhesion; the wear-resistant paint is prepared by using divinylbenzene and styrene, so that the hardness and strength of the film layer formed by the wear-resistant paint are improved; the wear-resistant paint is prepared by using vinyl silicone oil, so that the flexibility and water / oil repellency of the film layer formed by the wear-resistant paint are improved; the wear-resistant paint is prepared by using acrylic acid hydroxy ester, ethyl acrylate, methyl methacrylate, divinylbenzene, styrene and vinyl silicone oil, so that the prepared wear-resistant decorative paper has excellent wear resistance.

To provide an easily openable composite film which has stable seal strength and high sealability, causes no knocking occurrence when opened, and causes no problem such as film remaining and film cleavage.SOLUTION: A composite film is formed by laminating a sealant layer, an adjacent layer, and an outer layer in this order. The sealant layer is composed of a composition comprising an antiblocking agent and a glycol-modified polyethylene terephthalate (PET-G). An amount of the antiblocking agent in the composition has a ratio of 10,000-50,000 mass ppm. The adjacent layer is composed of at least one modified polyolefin resin selected from an acid-modified polyethylene, an ethylene-methyl acrylate copolymer (EMA), or an ethylene-acrylic acid-maleic acid anhydride three component copolymer. The composite film exhibits an easily openable property due to sealing of the sealant layer to an adherend and releasing of the adjacent layer from the sealant layer.SELECTED DRAWING: None