1122results about How to "Has acid and alkali resistance" patented technology

The invention discloses a process for producing anti-glare glass by using high-boron silicon and high-aluminium silicon glasses, wherein the method comprises the following steps: (1) weighing the raw materials according to the formula of a frosting liquid, mixing and stirring the raw materials evenly, curing the mixture for 24 -30 hours to prepare the frosting liquid; (2) after cleaning the glass to be frosted, carrying out protective treatment on one surface that is not needed to be frosted; (3) placing the protected glass into a pre-treatment liquor for further cleaning; (4) placing the treated glass into the cured frosting liquid to frost the glass for 30 -200 seconds, taking out the glass and cleaning the glass with water; and (5) placing the frosted glass into a polishing liquid to etch to obtain the anti-glare glass finished product. The invention solves the problem that the high-boron silicon and high-aluminium silicon glasses have large hardness and are difficult to be frosted; the process provided by the invention improves the hardness of the glass while guaranteeing the even frosting degree and good anti-glare effect; the product produced by the process provided by the invention has advantages of acid and alkali resistance and corrosion resistance.

The invention provides a cosmetic composition with the anti-glycosylation and anti-aging effects and an application thereof, and belongs to the technical field of functional compositions. The cosmeticcomposition comprises 0.5-4 parts of vitamin C, 0.5-4 parts of SOD-containing yeast powder, 0.2-5 parts of haematococcus pluvialis, 0.5-10 parts of rooibos tea, 0.5-8 parts of licorice extract, 0.1-6parts of waxberry extract, 0.5-8 parts of longan fruit shell extract, 0.1-8 parts of burdock polyphenol, 0.5-8 parts of cinnamon extract, 0.1-5 parts of kudzu root extract, 1-10 parts of purslane extract, 2-40 parts of carbohydrates, 2-30 parts of proteins and 0.5-5 parts of lipids. The cosmetic composition can achieve the melanogenesis-blocking and full-whitening effects, and the comprehensive anti-aging and whitening effects are achieved by a basic prescription.

The invention provides a three-dimensional graphene / phase change energy storage composite material and a preparation method thereof. The technical scheme is as follows: graphene and a phase change energy storage material are in situ compounded, wherein porous graphene with a three-dimensional structure is used as a heat conductor and a compound die, and a solid-liquid phase change organic material is used as the energy storage material and filler. The three-dimensional porous graphene is compounded with the phase change material, the phase change energy storage material is partitioned in a plurality of pore spaces and is in tight joint with the graphene wall so as to greatly increase the effective heat contact area, and the highly linked graphene three-dimensional heat conduction network channels can realize rapid system heat exchange. In addition, due to the capillary adsorption capacity of porous graphene, the liquid-state phase change energy storage material is localized, so as to effectively prevent seepage. Therefore, the three-dimensional graphene foam has good designability, and becomes a lighter and more effective heat dissipation material for electronic devices.

The invention relates to a building material, and in particular relates to an exterior wall color surface decoration mortar and a preparation method thereof. The exterior wall color surface decoration mortar comprises the following raw materials by weight: 20%-30% of white cement, 50%-60% of quartz sand, 0.1%-0.5% of chopped fiber, 10%-20% of heavy calcium carbonate, 0.2%-1% of latex powder, 0.3%-0.5% of cellulose ether, 1%-5% of an inorganic pigment, 0.2%-0.4% of a water repellent, 5%-10% of coal powder ash, 0.1%-0.15% of a defoaming agent, 1%-3% of metakaolin, 0.2%-0.5% of a thixotropic lubricant and 1%-2% of a water reducing agent. The exterior wall color surface decoration mortar has the advantages of crack resistance, weather resistance, good ultraviolet resistance, permanent and uniform color, good whiskering resistance, and the like, can be well combined with various inorganic base layer materials, is good in coating density, and can be widely used in the building fields such as exterior wall decoration and the like.

The invention relates to a flexographic printing water-based ink for food packaging, which comprises an acrylic resin binder, an addition agent, a colorant and deionized water. The flexographic printing water-based ink is good in moving resistance after solidified crosslinking is adopted and is prepared by premixing, sanding and dispersing water-based polyacrylic acid resin having no toxic effect on the human body, food-grade colorants, addition agents and the like according to a fixed proportion. The obtained ink utilizes flexographic printing to form pictures, and after high-temperature drying treatment is performed to a sample, the ink is high in adhesion, resists hot water of 80 DEG C and has a certain acidproof and alkaliproof performance. The water-based ink can replace traditional solvent ink, is applied to various plastics and paper printing, and is particularly used for the printing surface (such as the surface of a paper plate) directly contacted with food or the printing surface of a toy possibly closely contacted with sense organs of infants, thereby greatly improving safety performance.

The invention discloses a high-temperature proof insulating paint and making method, which comprises the following parts: 400-500g organic silica resin, 50-100g thermostable dye, 100-200g fill, 80-150 hollow ceramic microball, 30-60g bergmeal, 20-50g potassium titanate whisker, 100-150g solvent and 5-15g adjuvant.

The invention relates to a processing method of decoration boards. The decoration boards are processed by the substrate material surface and substrate material coloring and UV rays fixes the base lacquer and the surface lacquer by the forward drench-roll technology and the drench-spread technology. The substrate materials are particle board adhered with melamine fumiture surface paper on single or double faces or medium density fiberboard. The steps comprise 1) substrate material surface is processed; 2) substrate material surface is colored; 3) the base lacquer is fixed by UV rays; 4) the surface lacquer is fixed by UV rays. Prior to step 4), a step of polishing can also be comprised, i.e. large-scale polishing machine polishes the whole base lacquer after the fixing machine of UV rays fix completely. After the step 4), a step of cleaning package can also be added, that is, micro flaws can be removed that decoration boards with small bubbles or unapparent impurities are polished by dropping sand and package is checked. The decoration boards produced by the method has the advantages of wear resistance, environmental protection, rich and bright colors.

The invention relates to the technical field of harmlessness treatment of smelting wastes, and especially relates to a ceramsite prepared by using smelting wastes, and a preparation method thereof. The ceramsite comprises 10-90% of smelting waste powder, 5-40% of municipal sludge, 4-20% of fly ash, 0-20% of gangue and 0.1-10% of a curing agent. The preparation method of the ceramsite comprises the following steps: 1, crushing the smelting wastes by using a crusher to prepare the smelting waste powder; 2, weighing the smelting waste powder, the municipal sludge, the fly ash, gangue and the curing agent, mixing, and uniformly stirring to prepare ceramsite powder; 3, conveying the ceramsite powder to a ball forming granulation machine, and carrying out granulation molding to prepare ceramsite balls; 4, drying the ceramsite balls; and 5, calcining he dried ceramsite balls to prepare the finished ceramsite. The ceramsite prepared in the invention has the advantages of light weight, environmental protection and wide uses; and the preparation method recycles the smelting wastes, and has good economic and social benefits.

The invention discloses sulphoaluminate maritime work cement and a preparation method thereof. The sulphoaluminate maritime work cement comprises the following main raw materials in parts by weight: 50-80 parts of cement clinker, 8.0-20 parts of anhydrite, 0-30 parts of limestone, 0-30 parts of slag, 0.1-0.5 part of water reducing agent, 0.001-0.005 part of air entraining agent, 0.1-0.5 part of retarder and 2-5 parts of silicon powder. The preparation method comprises the following steps of: respectively smashing, grinding and homogenizing the sulphoaluminate cement clinker, the anhydrite, the limestone and the slag; then, burdening at a ratio, and evenly mixing; adding the water reducing agent, the air entraining agent, the retarder and the silicon powder; and mixing and homogenizing to obtain the product. The concrete mixed by the sulphoaluminate maritime work cement has the advantages of small bleeding rate and high slurry viscidity. The slurry has strong covering and supporting action on aggregate. The concrete keeps good homogeneity and has the advantages of hard and quick early strength, continuously-increased later strength, good slurry structure compactness and high volume stability and is convenient to use and operate for constructing.

The invention discloses a water-based environment-friendly finishing paint, which is prepared from the following compositions in part by weight: 20 to 70 parts of water borne acrylic resin solution of which the solid content is 30 to 80 percent and / or 20 to 70 parts of water borne epoxy resin solution of which the solid content is 30 to 80 percent, 4 to 10 parts of water borne amino resin solution of which the solid content is 60 to 98 percent; 1 to 5 parts of organic amine, 0.2 to 2 parts of wetting and leveling agent, 0.2 to 2 parts of thickener, 0.1 to 0.8 part of defoaming agent, 1 to 5 parts of adhesion promoter, 0.2 to 5 parts of catalyst, 10 to 30 parts of alcohol diluting solvent and / or 1 to 5 parts of nontoxic ether diluting solvent, and 20 to 50 parts of deionized water, wherein the catalyst is one or more of ammonias, alcohols and benzenesulfonic acids. The water-based environment-friendly finishing paint has the advantages of wide applicable range, high hardness, good flexibility, strong adhesion, good scratchproof performance, and environmental protection. Simultaneously, the invention also discloses a method for preparing the water-based environment-friendly finishing paint.

The invention relates to an aflatoxin nano-antibody immunosorbent, an aflatoxin nano-antibody immunoaffinity column and preparation methods and application of the two. The immunosorbent comprises a solid phase carrier and an aflatoxin B1 nano-antibody 2014AFB-G15 coupled with the solid phase carrier, the half maximal inhibitory concentration (IC50) of the aflatoxin B1 nano-antibody 2014AFB-G15 to aflatoxin B1 is 0.66ng / mL, and the cross reaction rates of the aflatoxin B1 nano-antibody 2014AFB-G15 to aflatoxins B2, G1, G2 and M1 are 22.6%, 10.95%, 32.1% and 26%, respectively; an amino acid sequence of the aflatoxin B1 nano-antibody 2014AFB-G15 is represented by SEQIDNO:7, and a coding gene sequence of the aflatoxin B1 nano-antibody 2014AFB-G15 is represented by SEQIDNO:8. The aflatoxin nano-antibody immunoaffinity column disclosed by the invention can be used for purifying and concentrating a sample extracting solution before machinery detection and can be repeatedly used.

The invention provides a 3D (three dimensional) wood printing supply which comprises components in percentage by mass as follows: 60%-90% of wood meal, 3%-15% of ABS (acrylonitrile butadiene styrene) plastics, 4%-15% of PLA (poly lactic acid), 2%-10% of PHA (polyhydroxyalkanoate), 1%-2% of PP (polypropylene) and 1%-2% of a compatilizer. The 3D wood printing supply has the characteristics such as water proofing, corrosion resistance, moisture resistance, freeness of worm damage, mildew and toxicity, acid and alkali resistance, environment protection and the like, the real flavor of wood is diffused; the wood printing supply is fused and deposited by a 3D printer at the temperature of 190-230 GDE C to form various different 3D models, the 3D models have the hand feel, the impression and the fragrance of natural wood and have an effect approaching to a solid wood effect and wood properties, and the printing supply can be nailed, drilled, planed, carved, adhered and painted as wood; and the comprehensive physical properties and chemical properties can be well improved and optimized, the performance requirement of the 3D printer can be effectively reduced, and accordingly, the printing supply is suitable for both high-end printers and low and medium-end 3D printers and has a wider application range.

The invention relates to an aqueous environment-friendly packaging steel drum paint, which is prepared by mixing the following compositions in part by weight: 20 to 70 parts of aqueous solution of acrylic resin with a solid content of 30 to 80 percent and / or aqueous solution of epoxy resin with the solid content of 30 to 80 percent, 4 to 10 parts of aqueous solution of amino resin with the solid content of 60 to 98 percent, 1 to 5 parts of organic amine, 1 to 50 parts of filling materials with the granularity of more than 2,000 meshes, 0.5 to 10 parts of color paste, 0.2 to 2 parts of wetting levelling agent, 0.2 to 2 parts of thickening agent, 0.1 to 0.8 part of antifoaming agent, 1 to 5 parts of adhesive force accelerant, 0.2 to 5 parts of catalyst, 0 to 30 parts of alcohol diluting solvent and / or 0 to 5 parts of non-toxic ether diluting solvent, and 20 to 50 parts of deionized water. The aqueous environment-friendly packaging steel drum paint has the advantages of wide application range, high rigidity, good flexibility, strong adhesive force and good anti-scraping and anti-collision properties and environmental protection; and meanwhile, the invention discloses a preparation method for the aqueous environment-friendly packaging steel drum paint.

The invention discloses a preparation method of an efficient electrostatic spinning oil-water separation fiber membrane. The preparation method includes the steps that polyamic acid (PPA) is synthesized, a PPA nanofiber membrane is prepared in an electrospinning mode, and the PPA nanofiber membrane is imidized into a polyimide membrane (PI); a cellulose acetate (CA) nanofiber membrane is prepared; coaxial electrospinning is carried out on CA-PAA, and a product is imidized into CA-PI; benzoxazine monomers (BAF-tfa) are synthesized; in-situ immobilization is performed on the CA, PI and CA-PI nanofiber membranes with BAF-tfa and BAF-tfa / silica nanoparticles (SiO2NPs); an oil-water separation experiment is carried out. The preparation method has the advantages that by carrying out surface modification on the fiber membranes, the CA-PI nanofiber membrane which is biodegradable, low in cost, large in oil-water separation flow and high in separation efficiency is obtained; the high-performance membrane material has broad application prospects in oil-water separation, sewage treatment and deepwater oil leak.

The invention relates to the technical field of oil field development, and in particular relates to a profile modifying / water plugging agent for oil well water plugging and profile modification. The water plugging agent is prepared from the following components in mass percent: 1-15% of polysaccharide, optimally 2-10% of the polysaccharide; 0.5-10% of a suspension stabilizer, optimally 1-6% of the suspension stabilizer; 0.5-20% of a gel strength accelerating agent, optimally 2-10% of the gel strength accelerating agent; and the balance of preparation fluid. The invention also provides a method for preparing the water plugging agent and application thereof.

The invention discloses an ultrahigh temperature decomposition agent of straws and cattle manure, and a preparation and an application of the decomposition agent, and belongs to the field of decomposition agents. The decomposition agent is prepared by mixed fermentation and drying of the straw, the cattle manure and a complex decomposition inoculant, wherein the complex decomposition inoculant comprises 1-10 parts of thermophilic bacterium inoculant, 1-6 parts of bacillus licheniformis inoculant, 1-6 parts of aspergillus oryzae inoculant, 1-6 parts of lactobacillus plantarum inoculant, 1-6 parts of thermoactinomyces sacchari, and 1-6 parts of cold-proof brevibacterium inoculant. The decomposition agent, a composting method and the application of the decomposition agent solve the problems of slow temperature rise during composting and decomposition, low fermentation temperature, long fermentation time, incomplete decomposition, poor compost quality and the like in the fermentation of the existing complex inoculant, and the decomposition agent is quick in temperature rise during the composting and the decomposition, quick in heating-up, high in fermentation temperature, short in fermentation time, more thorough in decomposition and higher in quality.

The invention discloses a construction method for reinforcing and repairing an integral wall of ancient architecture. The construction method comprises the steps of site survey and work preparation, wall foundation reinforcement, wall surface treatment, wall reinforcement and wall maintenance. The construction method is simple and easy to implement, scientific and convenient, and has the advantages of fast construction progress, low construction cost, high working efficiency and wide application range. According to the principle of 'repairing the old as the old', the cultural relic value of ancient architectural elements is kept, only damaged parts are repaired and reinforced, and the whole wall does not need to be replaced. The ancient architecture wall is priceless in cultural relic value. By using the method, original parts can be kept when the ancient architecture wall is damaged and loses bearing capacity, and a bearing function is recovered; the method conforms to the principle of 'repairing the old as the old', and is of great significance to the protection of the national cultural relics.

The invention relates to a preparation method of non-ionic waterborne polyurethane-polyacrylate composite emulsion for leather finishing. The preparation method comprises the following steps: after low polymer dihydric alcohol, diisocyanate and a hydrophilia chain extender are stirred for reaction, cooling to indoor temperature and adding an acrylate monomer and a certain amount of a solvent for reducing viscosity; adding water for emulsification under the high-speed dispersion; then adding a micromolecule polyamine chain extender to conduct chain extension in water to obtain an acrylate monomer-polyurethane waterborne dispersing emulsion; then introducing nitrogen, heating, dropwise adding a water solution containing an initiator to trigger seeding emulsion polymerization, and continuously keeping warm to obtain the composite emulsion. The composite emulsion prepared by the invention has the advantages of low viscosity, good permeability, emulsion stability, freeze-thaw resistance, hydrolytic resistance, and excellent electrolyte resistance and acid-base resistance property, can be used for compounding with anion resin and further with cationic resin, has an excellent knurling setting property, and is particularly suitable for being used as a leather finishing agent.

The invention provides a flame-retardant oil-resistant aging-resistant thermoplastic elastomer cable material prepared from the following raw materials in parts by weight: 100 parts of polyvinyl chloride SG-3, 10-20 parts of nitrile rubber N26, 10-15 parts of polycarbonate, 10-15 parts of poly(ethylene terephthalateco-1,4-cylclohexylenedimethylene terephthalate), 15-20 parts of a silane coupling agent, 30-40 parts of bisphenol-A bis(diphenyl phosphate), 20-30 parts of calcium carbonate, 1-2 parts of calcium silicate, 30-50 parts of barium stearate, 10-15 parts of cresyl diphenyl phosphate, 3-4 parts of glycerol trioleate, 2-3 parts of a crosslinking agent TAIC, 2-3 parts of stearic acid, 1-2 parts of N,N'-m-phenylenedimaleimide, 5-8 parts of alcohol ester-12, 0.5-1.0 part of PE wax, 1-2 parts of aluminum nitride powder, 1-2 parts of jade powder, and 8-10 parts of a modified filler. The flame-retardant oil-resistant aging-resistant thermoplastic elastomer cable material has the characteristics of flame retardancy, oil resistance, aging resistance, and acid and alkali resistance, and has lower specific density and low manufacture cost.

The invention discloses a bipolar membrane and a preparation method thereof. In the invention, metal phthalocyanine derivants are adhered to at least one monopolar membrane in the bipolar membrane to form the bipolar membrane of an intermediate interface layer formed by the metal phthalocyanine derivants. The bipolar membrane prepared by the method has the advantages of acid resistance and alkali resistance, high hydrolysis efficiency, high hydrogen and hydroxyl ion permeability, high working current density, small membrane impedance, low working voltage, simple overall bipolar membrane preparation process and the like.

The present invention relates to a polyacrylonitrile-based hollow carbon fibre membrane and its production method. The composition of said membrane formula is (wt%) 70-80% of polyacrylonitrile, 5-15% of methyl methacrylate and 5-15% of polyvinylpyrrolidone, and its production method includes the membrane-casting liquor preparation process, spinning process, stretching process, after-treatment process, preoxidation process and carbonizing process, and it is characterized by that the temp. of proxidation process is 240-300 deg.C, temp.-rising speed is 2-8 deg.C / min, heat-insulating time is 0.5-2 hr, then continuously temp.-rising to make carbonizing process, carbonizing temp. is 750-1000 deg.C, temp.-rising speed is 8-15 deg.c / min, heat-insulating time is 1-3 hr.

The invention discloses a benzoic acid modified waterborne alkyd resin and a preparation method thereof and also discloses an application of the benzoic acid modified waterborne alkyd resin in preparing benzoic acid modified waterborne alkyd amino resin baking varnish and an application method thereof. The benzoic acid modified waterborne alkyd amino resin baking varnish as waterborne baking varnish for ferrous products has the advantages of good stability and convenient, safe construction, no toxic solvents releasing, and the like, also has good gloss, weather resistance, water resistance, acid-base resistance, scrubbing resistance, high adhesive force and impact resistance after forming a film and is superior to the traditional solvent-based baking varnish in combination property; and in addition, the invention overcomes the defects of low hardness and poor gloss of the traditional waterborne alkyd resin and has simple and easy manufacturing process, is environmental-friendly and saves the energy by using water as a solvent.

The invention discloses an automatic spraying process for precision hardware and a spraying control method. The method comprises the following steps of: setting a product automatic spraying production line, sensor equipment, a core component precision gear pump, a spraying control system and an electrostatic generator device; and arranging a bilateral docking sensor and a multi-line configuration embedded control system; and realizing automatic control of a spraying process by matching an electric lift. A tunnel mode is adopted on the production line, one or more processing procedures are performed in each stage respectively, and the spraying process of a plurality of layers is completed once to form a composite coating on the surface of a structural piece according to a sequence from inner oil spraying to surface light spraying of a specific spraying process. A plurality of randomly set wave bands are itemized by using the spraying control system, wherein the operation speed of each wave band can be adjusted properly according to a complex workpiece so that the control process of the workpiece comprises multi-position spraying, multi-process spraying and multi-angle (360 DEG) spraying. The invention also discloses a spraying control system for implementing the method.

The invention discloses a fiber-reinforced fireproof insulation board. The fiber-reinforced fireproof insulation board is prepared from the raw materials in parts by weight: 80-100 parts of fly ash, 30-50 parts of expanded perlite, 10-20 parts of ceramsite, 10-20 parts of plant fiber, 5-10 parts of floating bead, 5-8 parts of meerschaum, 3-5 parts of sodium fluosilicate, 3-5 parts of calcium formate, 3-5 parts of flame retardant, 0.1-0.5 part of oleic triisopropanolamine and 0.1-0.3 part of glycol dimethyl ether. According to the fiber-reinforced fireproof insulation board, industrial production wastes are adopted as main raw materials, so that the production cost is reduced; through the organic combination and generated synergism of the fly ash, lightweight aggregate and additives, the defects in the existing building insulation boards can be effectively overcome.

The invention discloses extra-black environment-friendly tempered glass ink and a preparation method thereof. The extra-black environment-friendly tempered glass ink comprises the following components in percentage by weight: 18-30% of a coloring agent, 50-60% of glass-base glaze, 18-30% of varnish and 0.1-1% of an additive, wherein the coloring agent mainly comprises copper-chromium oxide. The extra-black environment-friendly tempered glass ink disclosed by the invention is not only efficient and environmental friendly, but also has the excellent characteristics of high blackness, high hardness, super wearing resistance, high acid and alkali resistance and the like.

Provided is an aerated concrete block with composition of mica powder and fly ash and a preparation method. The aerated concrete block is characterized by being prepared from, by weight, 12-15 parts of cement, 15-20 parts of quicklime, 12-16 parts of gypsum, 30-35 parts of fly ash, 0.2-0.4 parts of aluminium powder, 30-35 parts of mica powder, 12-16 parts of talcum powder, 2-3 parts of ferric nitrate, 2-3 parts of lard, 2-3 parts of sodium dodecyl benzene sulfonate, 1-2 parts of iron mine tailings, 2-3 parts of sodium persulfate, 3-4 parts of oil foot, 3-4 parts of polyisobutylene and 8-10 parts of alum. The aerated concrete block employs composition of mica powder and fly ash, and is advantaged by high temperature resistance acid and alkali resistance, corrosion resistance and high block strength.

The invention relates to a floating body material, in particular to a floating body material and a manufacturing technique thereof for an observation platform at the bottom of the sea. The floating body material comprises bisphenol A type epoxy resin, modified acrylonitrile-butadiene rubber latex, hollow glass microsphere, polyether amine, gamma-glycidoxypropyltrimethoxysilane, a silane coupling agent and polyvinyl alcohol fiber; and the floating body material comprises the following components in parts by weight: 100 parts of bisphenol A type epoxy resin, 0-10 parts of modified acrylonitrile-butadiene rubber latex, 12-18 parts of hollow glass microsphere, 15-20 parts of polyether amine, 2-3 parts of gamma-glycidoxypropyltrimethoxysilane, 1-2 parts of silane coupling agent and 2 parts of polyvinyl alcohol fiber. The invention provides the floating body material and the manufacturing technique thereof for the observation platform at the bottom of the sea; and the observation platform adopting the floating body material can be soaked in the seawater for use in a long term.

The invention discloses a waterborne fluorocarbon texture coating and a preparation method and application thereof. The coating comprises the following components in part by weight: 141 to 180 parts of fluorocarbon emulsion, 5 to 12 parts of film-forming aid, 5 to 6 parts of cosolvent, 80 to 100 parts of water, 1 to 2 parts of antifoaming agent, 3 to 6 parts of disinfectant, 1 to 3 parts of mildew preventive, 2 to 3 parts of pH regulator, 5 to 10 parts of thickening agent, 600 to 1,000 parts of color sand, and 0 to 89 parts of sheet. The preparation method comprises the following steps of: under the stirring at a high speed, adding the film-forming aid, the cosolvent, the antifoaming agent, the disinfectant, and the mildew preventive in turn, stirring at the high speed and reducing the stirring speed; adding the fluorocarbon emulsion, regulating the pH value, and regulating the viscosity by using the thickening agent to obtain pulp; stirring the pulp at a low speed, adding the color sand and sheet, and mixing to obtain the waterborne fluorocarbon texture coating. The waterborne fluorocarbon texture coating applied to a coated outer wall surface has good protection functions of water resistance, weather resistance, smudge resistance, and the like, and makes the wall surface have elegant, harmonious and serious aesthetic feeling.

The invention relates to a composite polymer waterproof board, which is prepared from the following components in part by weight: 30 to 90 parts of ethylene-vinyl acetate (EVA) copolymer, 20 to 50 parts of linear low density polyethylene (LLDPE) and 0.5 to 1.5 parts of antioxidant. The composite polymer waterproof board has high seepage resistance, high barrier property, high puncture resistance, no chemical pollution, and resistance to acid, alkali and various chemical substances. The invention discloses a synthetic resin polymer waterproof board with high elongation and wear resistance and a preparation method thereof. The waterproof board is suitable for water and seepage resistance of civil engineering such as various tunnels, underground civil engineering, urban subways, water conservation, artificial lakes, refuse landfills, petrochemical plant waste residue treatment sites, sewage regulating tanks and the like.

The invention provides a method for treating weak foundation by mesh bag method, which comprises: weaving mesh bags by macromolecular engineering materials, filling the mesh bags with sandstones as aggregate; planting into the holes drilled in the foundation and filling the holes with sandstone aggregate to form mesh bag sandstone piles; laying the mesh pieces woven by macromolecular engineering material and pad layer consisted of sandstone aggregate on the top surface of the pile and foundation; connecting the mesh open on the top of the mesh bag broken stone pile with the mesh pieces thereon; thus, the mesh and the mesh bags are connected into a complete reinforcing body in the foundation, and the reinforcing body and the original foundation together form a composite foundation. The invention is a simple and easy method, uses the polyethylene and polypropylene macromolecular engineering material with the advantages of high strength, acid-base resistance, anti-aging and anticorrosion; is more suitable for foundation treatment in salinized soil region with high corrosion to concrete and steel; achieves higher integrity of reinforcing body, can greatly increase the foundation bearing capacity and reduce settlement amount to reach the building design requirement.