40 results about "Maleic anhydride" patented technology

The invention provides a polyphenyl ether compound of LED display unit, which contains 25-60 accounts of polyphenyl ether, 23-35 accounts of polystyrene resin, 3-6 accounts of styrene-butadiene copolymer or relative maleic anhydride grafts, 5-10 accounts of phosphorus-containing organic fire retardant, 10-25 accounts of inorganic oxide, 0.1-0.3 accounts of lubricant and 0.2-0.4 accounts of anti-oxidant. The product is characterized in high light reflectance, high temperature deformation resistance, good ink adhesion, good light resistance, and halogen-free flame retardant, which can be used to produce electric appliance elements as LED display unit.

The invention relates to the technical field of surface treatment and modification of metal materials, and in particular relates to a preparation method for manufacturing a durable superhydrophobic coating on the surface of the aluminum and aluminum alloy. The method comprises the following steps that: after the surface of the aluminum and the aluminum alloy is roughened, washed, corroded and cleaned, a compound coating of durable maleic anhydride grafted polypropylene and polypropylene is coated on the surface of the aluminum and the aluminum alloy; therefore, the surface of the aluminum and the aluminum alloy has good durable super-hydrophobicity; the contact angle between the water and the surface is more than 150 degrees; and the super-hydrophobicity is still good after half a year. The preparation method is simple, is easy to operate and low in cost, the adopted reagent is harmless to the human body and does not pollute the environment.

The invention discloses skin-care permanently-antibacterial DP finishing liquid for shirts and a finishing method. The skin-care permanently-antibacterial DP finishing liquid is prepared from gelatin, Arabic gum, Flos Lonicerae extract, Chinese gall extract, Tween 60, span-80, 25% glutaraldehyde, an emulgator SPO10, butanetetracarboxylic acid, ammonium citrate, triethanolamine, lauric acid, sodium hypophosphite, boric acid, a diphenylethene disulfonic acid derivative, boron trifluoride diethyl etherate, PEG 1500, methylsiloxane, chitosan, N,N-dimethylformamide, demulsifier N-220 series, an appropriate amount of maleic anhydride and an appropriate amount of water. The skin-care permanently-antibacterial DP finishing liquid for shirts has the advantages that a natural antibacterial active substance is wrapped through advanced microcapsulary and releases slowly to achieve permanent antibacterial and deodorization performance and make wearers feel refreshing and comfortable; fabrics finished by the DP finishing liquid are excellent in wear durability, waterproofing performance and non-ironing performance and highly resistant to crease, thereby being time saving and labor saving and excellent in wearability.

The invention provides a preparation method of a corrosion inhibitor of methanol gasoline, and belongs to the technical field of metal corrosion protection. The preparation method comprises steps as follows: alpha-methylstyrene dimer, maleic anhydride, dicumyl peroxide and dimethylbenzene are added into a reactor, and then, the mixture is heated in an atmosphere of nitrogen for reacting; after the mixture is cooled to the room temperature, octadecanol, polyethylene glycol, p-toluenesulfonic acid, n-butyl alcohol and ethyl acetate are added, the mixture is heated for reacting and then cooled to the room temperature, and a mixture I is obtained; the mixture I is washed with a sulfuric acid aqueous solution, then washed with an NaOH aqueous solution and finally washed with an aqueous solution, and a mixture II is obtained; and benzotriazole, 2, 6-tert-butyl-4-methyl phenol, hexamethylene tetramine, ethanol, propargyl alcohol, trimellitate, a surface active agent and a combustion improver are added into the mixture II and uniformly stirred, and the corrosion inhibitor is obtained. The provided methanol gasoline has good solubility with various oils, the additive amount is small, and the corrosion-resistant effect is superior to that of a similar product.

Belonging to the technical field of catalysts for oxidation of benzene to maleic anhydride, the invention in particular relates to a catalyst for oxidation of benzene to maleic anhydride, a preparation method and application thereof. The catalyst for oxidation of benzene to maleic anhydride provided by the invention still has high conversion rate and maleic anhydride mass yield under the conditionof a low molten salt temperature. The catalyst with high activity and low molten salt service temperature provided by the invention can save a large amount of electrical power energy, and has a positive promoting effect on the maintenance and service life of the reaction device. Moreover, due to the high activity of the catalyst, the way of diluting the catalyst bed layer with a carrier can alsobe employed to reduce the catalyst consumption, thus further reducing the cost of enterprises.

The invention discloses water-based alkyd-acrylate dispersion as well as a preparation method and application thereof. The water-based alkyd-acrylate dispersion is prepared from the following raw materials: alkyd resin, an acrylate monomer, texanol, an initiator and a neutralizer, wherein the alkyd resin comprises the following raw materials: rosin, vegetable oil, polyol, phthalic anhydride, maleic anhydride, trimellitic anhydride, D40 solvent oil, an alcoholysis catalyst, an esterification catalyst and texanol. The water-based alkyd-acrylate dispersion is prepared from the raw materials through a chemical copolymerization method; wherein the particle size of the nano titanium dioxide is 178-188 nm, the Mw/Mn is 2.93 to 2.96, the grafting rate is 51-57%, the particle size is small and uniform, the stability is better, the grafting rate is high and the molecular weight distribution is more uniform; a molecular chain contains conjugated double bonds, carboxyl and other functional groups,so that the crosslinking density can be improved, the water absorption rate of a paint film is reduced, and the hardness, adhesive force, salt fog resistance and other properties of the paint film are improved.

The invention discloses a super heat insulation coating loaded with nano titanium dioxide. The super heat insulation coating is prepared from the following raw materials in parts by weight: 38-42 parts of ethyl orthosilicate, an appropriate amount of ethanol and deionized water, 0.1-0.2 part of maleic anhydride, 0.7-0.9 part of hexamethyldisilazane, 0.4-0.5 part of 3-aminopropyl triethoxysilane, 0.4-0.5 part of nano titanium oxide, 70-75 parts of E-12 epoxy resin, 9-12 parts of ethylene glycol diglycid ether and 7-7.5 parts of triethanolamine. The coating disclosed by the invention uses silicon dioxide aerogel and has a super heat insulation property; by loading nano titanium dioxide to the aerogel, the ageing process of the aerogel is retarded, and the service life of the aerogel is prolonged; and by using hexamethyldisilazane to perform modification, the hydrophilic property of the aerogel is improved, and the phenomenon that the aerogel is broken up and degraded by absorbing water is reduced.

The invention discloses a method for producing an unsaturated polyester resin by using a polycarboxylic anhydride by-product, comprising the following steps: preparing raw materials including 5-20 parts of a polycarboxylic anhydride by-product, 0-10 parts of phthalic anhydride, 16-22 parts of maleic anhydride or fumaric acid and 30-38 parts of dihydric alcohol; preparing unsaturated polyester fromthe raw materials by an esterification polycondensation method; diluting unsaturated polyester and styrene to obtain liquid-state unsaturated polyester resin. The unsaturated polyester resin producedby the method keeps relevant properties equivalent to the existing similar products, and the mechanical properties are at least equivalent after curing of the resin, and especially the tensile elongation at break, the heat distortion temperature of the load and Barcol hardness are all promoted. By reusing waste polycarboxylic anhydride by-product to partly or completely replace phthalic anhydride, resource utilization is improved, and cost of raw material, operating cost of manufacturing enterprises and other cost are reduced. Production efficiency is high, and energy consumption is also reduced to some extent.

The present invention discloses a grafted blending oil-resistant halogen-free electric cable insulation material, which comprises, by weight, 10-20 parts of a vulcanized silicon resin, 40-60 parts of an EVA resin, 10-30 parts of polyamide, 10-20 parts of a POE grafted zinc maleate ionomer, 1-10 parts of low density polyethylene, 1-10 parts of calcium chloride, 60-90 parts of a modified flame retardant agent, 0.1-1 part of a coupling agent, and 0.5-5 parts of an antioxidant. According to the present invention, the grafted blending oil-resistant halogen-free electric cable insulation material uses the maleic anhydride grafted modified low density polyethylene, such that the electric cable is durable, can be used in the kitchen and other heavy oil places, and can still continuously work after encounter of various oil leakage conditions so as to win time for repair; and the process is simple, the use is safe, and the broad market application prospect is provided.

The invention discloses a special adhesive sticker for an ethylene propylene diene monomer heat resistance conveyor belt and a preparation method of the special adhesive sticker. The adhesive stickertaking ethylene propylene diene monomer, maleic anhydride butadiene and dicumyl peroxide as a body is developed for the first time, the ethylene propylene diene monomer adhesive sticker and a polyester canvas (unimpregnated) have excellent adhesive effects, the ethylene propylene diene monomer adhesive sticker and ethylene propylene diene monomer covering rubber also have good adhesive strength, the problem of adhesion property reduction after aging due to natural rubber and butadiene styrene rubber serving as adhesive rubber in a high-temperature-resistant conveyor belt can be thoroughly solved, and the structure of the high-temperature-resistant conveyor belt is optimized. Anti-aging agents in ethylene propylene diene monomer materials with high adhesion property are removed, degradationof the polyester canvas can be relieved, and the service life of the polyester canvas is prolonged.

The invention discloses a biodegradable 3D printing toughening material and a preparation method, which consists of the following components by weight: polylactic acid (PLA): 70-80 parts; EVA: 30-20 parts; toughening agent: 6-8 parts; compatibilizer: 0.4-5.0 parts; auxiliary agent: 0.2-2.0 parts. The toughening agent is dioctyl phthalate (DOP); the compatibilizer includes maleic anhydride grafted polymer, which is a tertiary polymer formed by copolymerization of methyl methacrylate, butadiene and styrene copolymer. Copolymer; terpolymer (SAG) formed by copolymerization of styrene, acrylonitrile and glycidyl methacrylate. One or two or more compatibilizers are used together. The 3D printing composite material prepared by the invention is non-toxic and environment-friendly, has superior comprehensive performance, and has broad market prospects and application value.

The invention discloses an insulated fireproof coating for optical cables. The insulated fireproof coating comprises, by weight, solvent oil No.200, ethylene glycol, silicate, glass powder, calcium carbonate, polytetrafluoroethylene powder, epoxy resin, porcellanite, aluminum oxide, silicon nitride, antimony trioxide, mica powder, silicon carbide, maleic anhydride, silicone rubber, vermiculite, titanium dioxide, melamine, pentaerythritol, mineral fibers, powdery polyvinyl chloride, boride and an auxiliary agent, wherein the auxiliary agent refers to a leveling agent or defoaming agent. The insulated fireproof coating for the optical cables has the advantages that the coating is excellent in fireproof, insulated and flame-retardant performance and highly resistant to high temperature; when the coating expands after being heated, a compact uniform fireproof heat-insulated layer is formed; the coating has excellent physical and chemical properties and is quick to dry, resistant to damp, acid, base and water and remarkable in fireproof and heat-insulated effect, so that safety of electric wires and cables can be guaranteed effectively.

The invention discloses a grafted LLDPE (Linear Low-Density Polyethylene) based metal bonding film, belonging to the field of bonding agents. The grafted LLDPE based metal bonding film is prepared from raw materials through granulating and film blowing, wherein the raw materials comprise the following ingredients in parts by mass: 100 parts of LLDPE, 1.5-3 parts of maleic anhydride, 0.05-0.3 part of a peroxide initiator, 0.5-1.5 parts of an electron donor and 0.1-0.5 part of an antioxidant. The grafted LLDPE based metal bonding film disclosed by the invention has the advantages that the metallic material bonding force is high and the compatibility with polar polymers is good.

High-strength wear-resistant environmental-friendly plastic and a preparing method thereof are disclosed. The plastic comprises following raw materials by weight: PAA copolymer, polylactic acid (PLA), ethylene-vinyl acetate copolymer (EVA), plant powder, graphite fiber, a silane coupling agent KH550, ABS-grafted maleic anhydride, styrene-butadiene thermoplastic elastomer (SBS), methyl methacrylate-butadiene-styrene copolymer (MBS), hydrogenated styrene-butadiene-styrene block copolymer (SEBS), dipentaerythritol ester PCB, octyl esters of epoxidized soybean oil, tributyl citrate, glyceryl monostearate, kaolin, coal ash, silk white powder, white carbon black and an antioxidant SP. The PAA copolymer is prepared by reacting 6-aminocaproic acid and gamma-aminobutyric acid in a mole ratio of 5-10:0.5-4. The plastic is excellent in wear resistance and strength, and can be fully degraded into water and carbon dioxide under actions of light/bacteria so as to avoid environment pollution.

The invention relates to a formula of a straw-containing wood-plastic outdoor floor and a production method of the straw-containing wood-plastic outdoor floor.The straw-containing wood-plastic outdoor floor comprises, by weight, 100 parts of recycled polypropylene plastics, 150-200 parts of wheat straw wood fiber, 1-3 parts of maleic anhydride grafted polypropylene, 2-5 parts of activated calcium carbonate, 1-3 parts of vinyl amine distearate, 2-8 parts of flake graphite, 1-8 parts of nano-zinc oxide, 10-15 parts of glass fiber, 2-10 parts of ultraviolet absorber UV-327, 5-8 parts of light stabilizer GW-944, 3-12 parts of antioxidant 2,6-tert-butyl-4-methylphenol and 3-6 parts of iron oxide red.The production method includes subjecting wheat straws to airing, impurity removing, pulverizing, screening and drying, subjecting the polypropylene plastics to washing, airing and cutting, drying the auxiliaries, and performing melting, hot pressing and cooling so as to obtain the outdoor floor.The straw-containing wood-plastic outdoor floor is high in durability and ageing resistance and free of natural defects of wood and can be recycled.

A disperse dyeable fiber or filament is comprised principally of polyolefin modified with PETG to accept the disperse dyes. The combining of maleic anhydride with the PETG provides good dispersion of the PETG for uniform dye results. Novel textile fabric, knitted, woven and non-woven, can be formed with yarns or fibers formed in accordance with the invention. In one aspect of the invention, fabric can be disperse dyed to a light, medium or deep solid shade. In another aspect, the textile fabrics are manufactured using olefin yarns that contain variable amounts of dye acceptor additives. A fabric with more than one tone of a color thus can be dyed in a single dye bath. The fabrics and yarn according to this invention can be processed using conventional spinning, weaving, knitting, web formingl machines and will dye using existing dyeing and finishing systems. This invention is of particular value in the apparel and home furnishings industry.

The invention discloses a high-heat-resisting self-lubricating PVC/NBR composite foam board and a preparation method thereof. According to the composite foam board, PVC is blended with NBR, waste rubber powder, maleic anhydride grafted polyethylene, and polytetrafluoroethylene micropowder modified by silane coupling agent to serve as a foaming base material, the compatibility of the materials is good, the foam board achieves excellent heat resistance, self-lubrication and mechanical strength, the foam board is combined with other materials to finally prepare a composite sheet, the surface of the composite sheet is smooth, an internal structure of the composite sheet is even, the surface of the composite sheet is lyophobic and antifouling, and the composite sheet is economic and environment-friendly, and has an excellent application prospect in various fields.

The invention relates to anti-corrosion acrylic acid epoxy resin powder paint for ceramic. The paint comprises the following raw materials: glycidyl methacrylate, polyol, azobisisobutyronitrile, monoacid, di-tert-butyl peroxide, dicyclopentadiene, an initiator, maleic anhydride, epoxy resin, zinc oxide, a flatting agent, 1-o-tolylbiguanide, dodecanedioic acid, 2-mercaptobenzothiazole and titanium dioxide. According to the paint, the melting point is 200-220 DEG C, the density is 135-145g/cm<3>, and the paint has no abnormity after being soaked in 5% hydrochloric acid solution for 20-30d; the glossiness is 140%-150%, and after the artificial accelerated aging is implemented for 500h, the gloss retention rate is 94-98%; the shore hardness is 50-70H, the drying time is 20-30min, the paint cannot bubble or crinkle after being soaked in saturated calcium hydroxide for 15-35d, and the scrubbing resistance times are 1800-2200.

The invention belongs to the technical field of release films, and particularly relates to a preparation method of a PET release film. The preparation method comprises the following steps: (1) preparation of an anti-scratch agent: a, preparing amino-modified silicon dioxide nanoparticles; b, preparing a maleic anhydride polyacrylate precipitate; and c, carrying out a grafting amidation reaction on the amino-modified silicon dioxide nanoparticles and the maleic anhydride polyacrylate precipitate; (2) preparation of a release agent: taking organic silicon resin, polyvinyl alcohol, simethicone, a photoinitiator and the anti-scratch agent, and carrying out stirring and uniform mixing; and (3) preparation of the film: performing corona treatment on a PET base film, coating a corona surface with the release agent, and performing radiation curing by using ultraviolet light, thereby obtaining the film. The method is simple in process and easy to operate, and the PET release film prepared by the method has good scratch resistance and wear resistance, moderate peel strength, certain antistatic property and good stability.

The invention discloses a rice processing method with a low broken rice rate. The rice processing method with the low broken rice rate comprises the following steps that p-aminophenyl trimethoxysilane, maleic anhydride, sodium dodecyl sulfate and tetrahydrofuran are uniformly stirred, heating and stirring are carried out, and the pH value of a system is adjusted as 3-4, polyethylene glycol 600 isadded for continue stirring, ferric chloride hexahydrate and ferrous sulfate heptahydrate are added for continue stirring, ammonia water is added for continue stirring, cooling, filtering and washingare carried out for enabling the mixture to be in a neutral state, and drying is carried out to obtain modified polyethylene glycol; and rice is subjected to harvesting, impurity removing, drying andstanding, the modified polyethylene glycol is added for uniform mixing, and rise and husk separating, rice and hulled rice separating, rice milling and grading are sequentially carried out. The rice processing method with the low broken rice rate is simple in method, low in the broken rice rate and high in rice yield, and the obtained rice is clean, good in smoothness, delicious in flavor, thick in aftertaste, free of peculiar smell and good in mouthfeel.

The invention relates to a phase-change material, and especially relates to an inorganic phase-change constant-temperature material and a preparation method thereof. The inorganic phase-change constant-temperature material comprises calcium chloride hexahydrate, strontium chloride hexahydrate, sodium chloride, acrylic acid, glycerol, hydroxyethyl methacrylate, maleic anhydride, sodium carboxymethyl cellulose, boric acid and expanded graphite, wherein the total amount of the boric acid and the expanded graphite is 2-12% of the total amount of the inorganic phase-change constant-temperature material; and a mass ratio of the boric acid to the expanded graphite is (1-6):(1-6). The phase-change temperature of the inorganic phase-change constant-temperature material is 26 DEG C, the supercoolingdegree is 0.3 DEG C, the phase-change latent heat is not lower than 236 KJ/Kg, the phase-change process is reversible, and the material can be recycled for not lower than 10000 times; and in addition, the situation of thermal physical property degradation does not exist in the circulation process, and leakage from a base body is not prone to happening.

The invention discloses a waterproof and antibacterial coating. The coating is prepared from components in parts by mass as follows: 45-60 parts of acrylic resin, 20-30 parts of polyvinyl alcohol, 10-15 parts of isopropanol, 1-3 parts of maleic anhydride, 10-15 parts of silicon dioxide, 3-8 parts of titanium dioxide, 2-8 parts of glycol, 30-50 parts of filler, 3-8 parts of a dispersing agent, 1-2 parts of a defoaming agent, 1-3 parts of a pigment and 10-30 parts of water. The coating has excellent waterproof and antibacterial effects, has the large adhesive force, is abrasion-resistant, ageing-resistant and long in service life and can inhibit breeding of bacteria.