41results about How to "Excellent chemical corrosion resistance" patented technology

The invention discloses a halogen-free flame retardant polycarbonate/thermoplastic polyester resin composition, whose components and proportions are as follow: polycarbonate 50 percent to 85 percent, thermoplastic polyethylene terephthalate resin 5 percent to 30 percent, core-shell graft coplolymer 2 percent to 15 percent, phosphorus-containing flame retardant 5 percent to 15 percent, super fine talc powder 0 to 20 percent and phosphite antioxidant 0 to 0.05 percent, the above contents are all in weight percentage. The product of the invention has the advantages that no large amount of harmful gas is released when the product is burned with environmental protection and safety.

The invention belongs to the technical field of engineering material preparing, and specifically relates to a preparation method for anti-high-temperature oxidative damage ZrB2-SiC-ZrC-W multiphase ceramic. The preparation method aims at solving the problem that when the temperature is over 1600 DEG C, the stability of an existing ZrB2 base ceramic material is poor. The preparation method comprises the steps that 1, raw materials are prepared; 2, mixing and ball milling are conducted, and sizing agents are obtained; 3, drying and grinding are carried out, and mixed powder materials are obtained; and 4, hot pressed sintering is conducted, and the ZrB2-SiC-ZrC-W multiphase ceramic is obtained. The anti-high-temperature oxidative damage ZrB2-SiC-ZrC-W multiphase ceramic has the advantages that 1, the consistency is greater than 99%; 2, compared with the existing ZrB2 base ceramic material, the anti-high-temperature oxidative damage performance is more prominent. The method is mainly used for preparing the anti-high-temperature oxidative damage ZrB2-SiC-ZrC-W multiphase ceramic.

The invention discloses an epoxy floor coating, which is characterized by comprising a host and a curing agent, wherein the mixing ratio of the host to the curing agent is 2: 1, and wherein the host comprises the following components in parts by weight: 22-50 parts of epoxy resin, 10-30 parts of filler, 1-8 parts of thickener, 4-7 parts of auxiliaries, 18-35 parts of pigment or color cream and 6-20 parts of plasticizer, and wherein the curing agent is fatty amine and/or polyamide. The epoxy floor coating provided by the invention has excellent chemical corrosion resistance, high hardness, and excellent physical characteristics such as impact resistance, scrub resistance, abrasive resistance and the like; the epoxy floor coating is simple to prepare and convenient for construction; the epoxy floor coating is prepared from environment-friendly, solvent-free good-quality epoxy resin; the epoxy floor coating is wearproof and insulating, and hard and fine in surface; the epoxy floor coating is excellent in resistance to acid, to alkali, to salt, to oil, to esters, and to drugs; the epoxy floor coating is waterproof and non-absorbent, easy to flush, and simple and easy to clean and maintain; besides, the epoxy floor coating is bright and comfortable, smooth and beautiful in appearance with mirror face effect.

The invention relates to a fluorine-containing heavy-duty anticorrosive coating and its application. The coating comprises an epoxy vinyl resin, hexafluorobutyl methacrylate, methacrylate, a diluent and an initiator, wherein the mass ratio of the epoxy vinyl resin to the hexafluorobutyl methacrylate to the methacrylate is 4:0.5-6:0-0.4; the mass of styrene accounts for 20-65% of the mass of the epoxy vinyl resin; and the amount of he initiator accounts for 0.1-1% of the total mass of the coating. The fluorine-containing heavy-duty anticorrosive coating of the invention combines the excellent adhesion of epoxy resin coats and good chemical anticorrosive characteristics of fluorocarbon coats, coat products of the coating have already have the chemical anticorrosive capability under extreme environments through continuous technical innovation and improvement, and simultaneously the coating products have excellent weatherability same as that of the fluorocarbon coats, excellent adhesion same as that the epoxy resin coats, and a use temperature which is near 100DEG C higher than that of the epoxy resin coats and the fluorocarbon coats averagely.

The invention discloses a preparation method of an oil-water separation membrane, and belongs to the technical field of chemical engineering and macromolecule functional materials. The preparation method includes the steps that an aluminum net is subjected to ultrasonic cleaning in an ultrasonic cleaner for 15-25 minutes through acetone and absolute ethyl alcohol, washed through deionized water to remove oil stains on the surface and dried through nitrogen; the aluminum net is soaked into an HCL water solution for 5-15 minutes, washed through deionized water and dried through nitrogen; PVC is dissolved into deionized water of 90 DEG C to be prepared into a solution, the mass concentration of the solution is 14%, nanometer SiO2 particles are ultrasonically dispersed into a PVA solution according to the proportion of 3-4 mg/ml, and a PVA/SiO2 compound is obtained after generated suspension is dried in a drying box of 60-80 DEG C; the compound is ground into powder and ultrasonically dispersed into absolute ethyl alcohol according to the proportion of 10-15 mg/ml; the aluminum net obtained in the step 2 is soaked into a PVA/SiO2 ethanol solution for about 30 minutes and dried for 1-2 hours at room temperature, and after ethyl alcohol volatilizes completely, the operation of soaking-drying is repeated 4-5 times to obtain the super-hydrophilic super-oleophobic net membrane.

The invention discloses a plastic waterproof plate and a preparation method therefor. The plastic waterproof plate is prepared from raw materials comprising an ethylene-vinyl acetate copolymer, linear low density polyethylene, asphalt, filler and an antioxidant. The plastic waterproof plate disclosed by the invention has excellent aging resistance and chemical medium corrosion resistance of the asphalt, excellent flexibility, tensile strength and wear resistance of the linear low density polyethylene and excellent low-temperature flexibility and sweat soldering performance of the ethylene-vinyl acetate copolymer. The composition of the product is environmentally friendly and the product can be widely suitable for waterproofness and seepage resistance of civil engineering such as a plurality of tunnels, underground civil engineering, city subways, water conservancy, artificial lakes, refuse landfills, waste residue treatment fields of petroleum plants, sewage adjusting pools and the like.

The invention discloses a preparation method of a polyethylene nucleating agent. The preparation method comprises the steps as follows: firstly, 1,3-propanediamine and phenylurea are mixed, dioxane isadded, the mixture is subjected to a reflux reaction at 100-120 DEG C for 15-20 h under the protection of nitrogen, after the reaction, a product is cooled to the room temperature; ethyl acetate is added to dissolve reactants which do not react completely; a reaction solution is washed with acid; an organic layer obtained after standing layering is dried by anhydrous sodium sulfate, rotary evaporation is performed, a solid product obtained after rotary evaporation is recrystallized by methanol, and a final product is obtained. The product obtained through a polymerization reaction of 1,3-propanediamine and phenylurea has a better crystallization promotion function on a polyethylene material, the spherocrystal size of polyethylene can be significantly reduced, and the mechanical performance of the material can be remarkably improved.

The invention discloses a solvent-free epoxy self-leveling heavy anticorrosive terrace coating, which is composed of the following raw materials (by weight): 40-50% of epoxy resin, 5-10% of a diluent, 30-40% of a filling material, 5-10% of pigment, 3-10% of a curing agent and 1-2% of an auxiliary agent. Total percentage of the above components is 100%. According to the invention, modified liquid epoxy resin, a nonactive epoxy diluent and a cashew nut shell oil modified amine epoxy resin solvent-free curing agent are used as raw materials to obtain the terrace coating. The coating has good resistance to chemical corrosion, and the problem that existing solvent-free epoxy terrace coatings have strong smell and are poisonous is solved.

The invention relates to an anti-corrosion rubber composition. The anti-corrosion rubber composition comprises the components of, by weight, 100 parts of raw rubber, 20-80 parts of talcum powder, 10-60 parts of mica powder, 0.5-10 parts of coupling agent, 0.5-15 parts of pitch, 1-20 parts of coumarone resin, 30-60 parts of sulphur, 0.1-5 parts of accelerant and 1-20 parts of dyeing agent. The invention also relates to an anti-corrosion rubber lining. The rubber lining produced through the anti-corrosion rubber composition provided in the invention can bear a working temperature of 130 DEG C under a high vacuum degree, is acid and alkali resistant at high temperatures and is applicable to a 11-stage flash device of an adhesive production line.

The invention relates to a silicon carbide ceramic cylinder sleeve for a well-drilling slurry pump. The silicon carbide ceramic cylinder sleeve is composed of micron silicon carbide, submicron boron carbide powder, nanometer carbon black, and an organic binder, the amount ratios of which are, per one hundred grams of dried submicron boron carbide powder, 0.2-4.8% of submicron boron carbide powder, 12-25% of nanometer carbon black, and 6-25% of the organic binder. According to the invention, silicon carbide is taken as a raw material, and the silicon carbide ceramic cylinder sleeve is obtained via iso-static cool pressing and pressureless sintering. The hardness of the resultant silicon carbide ceramic cylinder sleeve can reach more than 26GPa, and is good in abrasive resistance, excellent in chemical resistance, and uniform and dense in inner organization structure. After the silicon carbide ceramic cylinder sleeve is subjected to fine machining, the internal surface smoothness can reach Ra0.2, and the service life can reach 4500 hours. The silicon carbide ceramic cylinder sleeve in the invention can work in mediums, such as well-drilling slurry or other liquid with high corrosivity.

The invention discloses solvent-free epoxy terrace paint. A component A is prepared from phenolic aldehyde epoxy resin, a plasticizer, low molecular weight epoxy resin, an active diluting agent, pigments and fillers, a dispersant, an anti-settling agent and a flatting agent and is faint yellow; a component B is prepared from cashew nut shell modified phenolic aldehyde amine, a modified alicyclic amine compound curing agent and pigments and fillers and is reddish brown; the solvent-free epoxy terrace paint does not contain an organic solvent; solvent-free epoxy rustproof paint is prepared from the component A and the component B according to the weight ratio of 6 to 1. The solvent-free epoxy terrace paint disclosed by the invention has the advantages that the paint has good chemical corrosion prevention performance and the problems of existing solvent-free epoxy terrace paint which the odor is heavy, the viscosity is great and the toxicity is caused are solved.

The invention discloses an SMC drain pipe and a preparation material and a preparation method thereof; the SMC drain pipe comprises a water inlet pipe and an anti-blocking cover, wherein the water inlet pipe is prepared from the SMC drain pipe preparation material; the anti-blocking cover is embedded in the upper part of the water inlet pipe; the SMC drain pipe preparation material is composed of the following materials by the weight fraction: 20%-28% of unsaturated polyester resin, 5%-8% of short thick glass fibers, 20%-32% of medium-alkali glass fiber cloth, 25%-38% of a filler, 8%-15% of industrial waste residues, 10%-20% of glass powder, 0.5%-2.0% of an internal demolding agent, 1%-2.8% of a low-shrinkage additive, 0.5%-2.5% of a chemical thickening agent, 0.2%-1.0% of an initiator, and 0.5%-4.5% of a coloring agent. The preparation method comprises calcining, foaming, annealing and cooling, raw material mixing, impregnation, sheet preparation and finished product obtaining. According to the SMC drain pipe and the preparation material and the preparation method thereof, with foam glass and the SMC material structure, the drain pipe has the advantages of both the foam glass and the SMC material, and has the advantages of low production costs, long service life, and excellent electrical insulation performance, mechanical properties, thermal stability, and resistance to chemical corrosion.

The invention discloses a preparation method of high-temperature-resistant and corrosion-resistant environment-friendly rubber. The high-temperature-resistant and corrosion-resistant environment-friendly rubber is prepared from the following raw materials in parts by mass: 85-95 of natural rubber, 15-20 of stabilizer, 10-20 of acrylonitrile-butadiene rubber, 30-45 of modified chloroprene rubber, 20-26 of carbon black, 7-16 of polystyrene, 0.5-1.5 of sulfurizing agent, 2-4 of stearic acid, 2-8 of zinc oxide, 12-18 of magnesium oxide, 9-16 of anti-aging agent, 15-25 of flame retardant, 20-30 ofparaffin and 4-5 of accelerant. The temperature-resistant and corrosion-resistant environment-friendly rubber prepared by using the simple preparation method is not only low in rubber cost and good inchemical corrosion resistance effect, but also simple in preparation process and easy to realize industrialization; in addition, the high-temperature-resistant and corrosion-resistant environment-friendly rubber has excellent stability and heat resistance and is nontoxic, environment-friendly, capable of effectively reducing environment pollution and long in service life.

The invention discloses a high-temperature-resistant and corrosion-resistant environment-friendly rubber, which is made of the following raw materials in parts by mass: 80-100 natural rubber, 8-15 stabilizer, 25-40 nitrile rubber, and modified chloroprene rubber 20‑50, carbon black 15‑30, polystyrene 8‑12, vulcanizing agent 1‑1.5, stearic acid 2‑4, zinc oxide 5‑10, magnesium oxide 12‑18, antioxidant 10‑14, flame retardant Agent 15‑25, paraffin wax 20‑30, accelerator 4‑5. The temperature-resistant and corrosion-resistant environmentally friendly rubber is prepared by a simple preparation method. Not only the rubber cost is low, the chemical corrosion resistance is good, but also the preparation process is simple, easy to industrialize, and has excellent stability, heat resistance, and non-toxic , Environmental protection, can effectively reduce environmental pollution, long service life.

The invention discloses a composite silicate fire partition. The composite silicate fire partition comprises a metal net frame formed by welding metal rods which are crisscross. The front side and the reverse side of the frame are respectively bound with a composite silicate hard heat insulation plate through a binding agent, and wood veneers are arranged on the sides, away from the frame, of the composite silicate hard heat insulation plates. The metal net frame which is wholly formed by welding the metal rods which are crisscross is used as a support, and therefore the composite silicate fire partition is not prone to deforming and collapsing and high in strength; the composite silicate hard heat insulation plates are good in heat insulation and fireproof performance, and a glass fiber cloth layer is good in forming, small in volume density, low in heat conductivity, good in heat insulation and sound absorption performance, stable in chemical performance, and capable of resisting corrosion; the wood veneers have the certain decorative effect, and the composite silicate fire partition is simple in structure and low in cost.

The invention belongs to the field of high polymer materials, and especially relates to a low-cost low-temperature plastic dipping PVC glove forming process method. The low-temperature plastic dippingPVC glove forming process method uses chloro-ether resin and allyl resin monomers, low-temperature plastic dipping of PVC gloves is realized through in-situ polymerization and synchronous crosslinking, the preparation cost is low, a hand mold does not need to be preheated, high temperature production environment is not needed, energy consumption is low, the production working environment and conditions are improved, the prepared PVC gloves are more durable, good in sealing performance, free of peculiar smell, large in elasticity, resistant to acids and alkalis, convenient and comfortable to wear, integrally formed, non-sticky, convenient and safe, free of natural latex allergic protein and free of anaphylactic reaction, and the strength, the corrosion resistance and the hygienic propertyare improved.

The invention discloses an environment-friendly high solid content polyaniline epoxy anticorrosive coating and a preparation method thereof, and belongs to the technical field of anticorrosive coatings. The coating is prepared from a component A coating body and a component B coating body, wherein the component A coating body is prepared from eigenstate polyaniline, epoxy resin, a thixotropic agent, pigment, functional filler, a mixed solvent and aids; the component B coating body is prepared from a curing agent and a diluent. The preparation method comprises the following steps: weighing allraw materials of the component A coating body and uniformly stirring, adding glass beads for sanding and filtering to obtain the component A coating body; uniformly mixing the raw materials of the component B coating body to obtain the component B coating body; respectively packaging the component A coating body and the component B coating body; sufficiently mixing according to the mass ratio anduniformly stirring before use, thus obtaining the environment-friendly high solid content polyaniline epoxy anticorrosive coating disclosed by the invention. The product can be used after being stoodand cured and the solid mass content reaches 85 percent or above; the use of organic solvents is reduced while the anti-corrosion properties of the coating are ensured, so that the problems of environmental pollution and waste of chemical raw materials caused by organic solvent volatilization are solved.

The invention provides a ceramic tile veneer composite board, which includes a tile panel and an SMC composite material substrate bonded and pressed together. One side of the SMC composite material substrate has a protruding male tenon, and the other side has a concave recess. tenons. Compared with the ceramic tiles in the prior art, the ceramic tile veneer composite panel of the present invention not only retains the advantages of traditional ceramic tiles as the surface of the wall or the ground, but also adopts the method of splicing male and female tenons to make the connection stronger and better in safety , and can use dry construction, laying is very convenient.