2202 results about "Antifoam agent" patented technology

A coating composition for fabrics includes wetted microspheres containing a phase change material dispersed throughout a polymer binder, a surfactant, a dispersant, an antifoam agent and a thickener. Preferred phase change materials include paraffinic hydrocarbons. The microspheres may be microencapsulated. To prepare the coating composition, microspheres containing phase change material are wetted and dispersed in a dispersion in a water solution containing a surfactant, a dispersant, an antifoam agent and a polymer mixture. The coating is then applied to a fabric.

The invention relates to a multifunctional high-efficiency heat-preservation heat-insulation coating material. The compositions in percentage by weight of the coating material are: 10 to 20 percent of water, 0.1 to 0.2 percent of multifunctional auxiliary agent, 0.1 to 0.2 percent of wetting agent, 0.5 to 0.8 percent of dispersing agent, 0.3 to 0.5 percent of antifoam agent, 1.5 to 3.0 percent of propylene glycol, 16 to 20 percent of rutile-type titanium pigment, 3 to 5 percent of mica powder, 6 to 8 percent of hollow glass microballoon, 3 to 5 percent of infrared powder, 3 to 4 percent of fire retardant, 35 to 40 percent of elastic acrylic acid emulsion, 3 to 5 percent of opaque polymer, 0.5 to 0.8 percent of film-forming auxiliary agent, 0.2 to 0.3 percent of bactericide and preservative and 0.3 to 0.6 percent of thickening agent. The multifunctional high-efficiency heat-preservation heat-insulation coating material is of aqueous monocomponent and does no harm to human body and the environment so as to be an environment-friendly product; meanwhile, the coating material also has excellent waterproof and fire-retardation functions, convenient and quick construction, excellent adhesion strength, outstanding crack resistance, infrequent pollution and service life as long as 15 years; moreover, during practical use, the coating material can effectively reduce solar heat accumulated in a house by approximately 8 to 15 DEG C, and can greatly reduce energy consumption.

An ultrahigh-strength active powder concrete is a mixture prepared by mixing the following materials according to weight portion: 1000 portions of Portland cement, 600-1400 portions of quartz sand, 90-400 portions of siliceous dust, 200-400 portions of silicon powder, 100-300 portions of quartz powder, 80-350 portions of high-strength steel fiber, 15-30 portions of high-efficiency water reducing agent, 250-320 portions of water, 60-120 portions of AEA expanding agents, 0-15 portions of latex powder, 0-10 portions of polyester fiber and 0-2 portions of antifoam agents. The preparation method comprises the following steps: preparing the materials according to the weight proportion, firstly mixing water, cement, quartz sand, siliceous dust, silicon powder, quartz powder, AEA expanding agents, high-efficiency water reducing agent, latex powder, polyester fiber, and antifoam agents into pasty state; then adding high-strength steel fiber, and mixing for 4-6 minutes. The prepared active powder concrete has super-high compressive and bending strengths, high mechanical property and high durability.

The invention discloses composite epoxy anticorrosive paint and a preparation method thereof. The composite epoxy anticorrosive paint is composited by a component A and a component B at a ratio of 2:1, wherein the component A comprises constituents as follows: organosilicon modified epoxy resin, a pigment, filler, a plasticizer, a dispersant, a coalescing agent and a antifoaming agent; the component B comprises constituents as follows: polyphenyl ether resin powder, styrene-butadiene rubber, toluene, a plasticizer, a coupling agent, auxiliary materials and a flame retardant; and the components A and B are mixed respectively for preparation, and B is sprayed on A to form the composite epoxy anticorrosive paint. The composite epoxy anticorrosive paint is prepared by two components, has superior high-temperature resistance and abrasion resistance as well as good adhesion and low shrinkage simultaneously, has good corrosion resistance and penetration resistance to water, medium acid, alkali and other solvents and further has superior flexibility and paint application simultaneously; and the preparation method of the composite epoxy anticorrosive paint is simple and low in cost.

The invention relates to a water thermal-insulation paint used in constructions, comprising the following raw materials: ceramic hollow micro bead, emulsion, latent solvent, filler, pigment, wetting agent, dispersing agent, thickening agent, antifoam agent, germicide and water. The ceramic hollow micro bead, which is added in the paint, can form a paper-thin enclosed hollow cavity layer when coated on the surface of a building, thereby effectively preventing thermal conduction and thermal radiation.

The invention relates to a phosphorus-free metal cleaning agent comprising the components of, by weight, 2-20% of a cleaning aid, 1-20% of a surfactant, 1-10% of a chelating agent, 1-20% of an emulsifier, 1-10% of an antirust agent, 0.2-4% of a copper alloy corrosion inhibitor, 1-10% of a penetration agent, 1-6% of a solubilizing agent, 0.1-0.6% of a defoaming agent, and balance of water. The cleaning agent provided by the invention has excellent cleaning capacity, long rust proof period, low foam, long service life, and the like. The cleaning agent is suitable for ferrous metal and non-ferrous metal processing industries. The agent has the advantages of no volatilization, no irritation, no toxic or harmful substance such as nitrite, no damage to health, and no environment pollution.

A candlewax composition having improved scent-throw, and candles made from the composition, are provided. The candlewax composition includes at least a wax component and an antifoam agent. An effective amount of a scenting agent can be separately added by a candlemaker.

The present invention provides a carbon nano-tube reinforcing cement-based composite material and the preparing method thereof, which relates to an inorganic non-metal fiber-reinforced cement-based composite material and the preparing method thereof. The invention settles the problem that the carbon nano-tube is hard to uniformly dispersed in the cement substrate, and the carbon nano-tube reinforcing cement-based composite material of the invention is mainly composed of carbon nano-tube, dispersing agent, thickening stabilizing agent, cement blending material, superplasticiser, antifoaming agent and cement; the method of the invention comprises the following steps: slowly injecting the continuous phase mixed liquid of the thickening stabilizing agent into the carbon nano-tube disperse phase mixed liquid; adding the cement mixing material, mixing to uniform, heating and ultrasonic agitating, then vacuum discharging the bubble; then adding into the mixed liquid of the superplasticiser and the water for mixing to uniform, further eliminating the bubble with the antifoam agent; at last adding cement for mixing to uniform, adding the slurry into the oil mould and jolt ramming for molding; mode removing and standard maintaining to the prescribed lifetime. The carbon nano-tube in the product prepared by the method of the invention is uniformly dispersed in the cement substrate. The mechanical property and conductivity of the product is increased for several times.

The invention discloses a water-based ultra-thin fire-retardant coating for steel structures. The fire-retardant coating comprises components as follows: a binder emulsion, an intumescent flame retardant system, filler, deionized water and additives, wherein the additives comprise a dispersing agent, an antifoaming agent, a mold inhibitor, an anti-flash-rust agent, a coalescing agent, a leveling agent and a thickener; the intumescent flame retardant system comprises a dehydration catalyst, a carbonizing agent and a foaming agent. The invention further designs a preparation method of the water-based ultra-thin fire-retardant coating for the steel structures. The components are mixed sequentially to be prepared into the water-based ultra-thin fire-retardant coating for the steel structures in a vertical sand mill and a dispersing tank. The prepared coating is large in adhesive force, high in hardness, good in fireproof property, good in anti-scratch performance and excellent in weather resistance and water resistance, the surface layer of the coating is fine and smooth, the decoration performance is improved significantly, and the preparation method is low in energy consumption and has the advantages that the harm to human bodies and the pollution to the environment during preparation are small and the like.

An edible water-soluble film is provided. The film includes at least one water-soluble polymer, and a foam reducing flavoring agent, wherein the film is free of added anti-foaming or defoaming agents.

The invention belongs to the technical field of new materials, and particularly relates to high-concentration and high-purity highly pre-dispersed graphene slurry and a preparation method and an application of thereof. The graphene slurry is prepared from the following raw materials in parts by weight: 0.5-15 parts of graphene, 0.1-20 parts of an anti-fold cleavage dispersing agent, 0.01-1 part of a defoamer and 80-95 parts of a solvent; the graphene slurry is prepared through high-energy cleavage and dispersion; the viscosity of the prepared graphene slurry is smaller than 10,000cPs; and the metal impurity content in the slurry is smaller than 100ppm. High-concentration cleavage and folding prevention can be achieved; and the graphene slurry has the properties of extremely high purity and low viscosity, is very easy to be dispersed for the second time, and is suitable for an automatic feeding system.

The invention relates to an ink-jetting ink, in particular to a sublimation ink-jetting ink used for an industrial nozzle and a manufacturing method thereof. The sublimation ink-jetting ink comprises, by weight, 1-6% of disperse dyes, 10-14% of wetting agents, 5-20% of viscosity adjusting agents, 0.1-2% of bactericides, 0.01-1% of pH buffering agent, 1-10% of liquid resin, 0.1-40% of disperse agents, 0.01-5% of antifoaming agents, 0.1-5% of surface active agents, 0.01-2% of metal ion chelating agents and 10-80% of purified water. The manufacturing method of the sublimation ink-jetting ink used for the industrial nozzle includes color paste manufacturing and finished product manufacturing. The sublimation ink-jetting ink used for the industrial nozzle is simple in manufacturing method, smooth in ink jetting, free of blocking the nozzle, good in dispersion stability, free of going bad or denaturing even if being stored for a long time and low in cost, and diameters of dispersed ink points are even.

The invention discloses a room-temperature-curable aqueous anticorrosion primer used for coating the external surface of a construction crane. The primer comprises the following components by weight: 35-45% of an aqueous resin, 5-8% of a curing agent, 1-3% of a dispersant, 5-12% of an antirust pigment, 20-35% of a pigment filling material, 1-2% of an anti-settling agent, 0.5-1% of a wetting agent, 0.5-1% of a thixotropic agent, 0.5-1% of an antifoaming agent, 0.1-0.8% of a flash etching inhibitor, 0.1-0.8% of a mildew inhibitor, 1-3% of a film-forming auxiliary agent and 10-20% of deionized water. The invention also discloses a preparation method of the aqueous anticorrosion primer. The aqueous anticorrosion primer has a room-temperature-curable paint film, is energy-saving and environment friendly, and can satisfy safe production requirements of enterprises; the primer is high in solidity, low in viscosity, convenient for construction; and the coating of the primer has good corrosion resistance and water proofness, and the comprehensive properties of the coating reach performance indexes of same-type oiliness products.

The invention relates to the process of an inflatable ultrathin steel structural weather-fire resisting nanopaint. It is composed of acrylic resin:16-25; amine resin:5-8; epoxy modified high polymer: 5-8; nano-compound fire retardant:3-6; superfine compound fire retardant: 35-45; intensify spun glass: 4-7; smoke abatementer:2-4; chlorinated paraffin:2-4; rutile titanium white:3-5; elasticizer:2-4; antifoam agent:0.3-0.6; flow promoter:0.3-0.6; mixing solvent:15-20. The above mixture is lapped to 60um of diameter and we can get the product. The product has the good resistance of the fire, water, oil and salt.

The invention discloses a preparation method of a conductive anticorrosive coating of modified graphene. The method comprises the steps that firstly, polyaniline is grafted to the surface of modified graphene in a conjugate mode, and the polyaniline is used as conductive filler and then forms the conductive anticorrosive coating with epoxy resin. The component A is prepared from 10 g of epoxy resin, 1.0-2.5 g of modified graphene powder, 0.1-0.3 g of fumed silica anti-settling agent, 10-30 ml of a mixing solvent, 0.01-0.03 g of polydimethylsiloxane defoaming agent, 0.03-0.05 g of a flatting agent and 0.04-0.06 g of a sodium dodecyl benzene sulfonate dispersing agent. The component B is prepared from 3-10 g of a curing agent and 3-10 ml of a mixing solvent. The mixing solvent comprises xylene and normal butanol, and the volume ratio of xylene to normal butanol is 7:3. The modified graphene is used as the filler, the conductive anticorrosive capacity of the coating can be greatly improved, and the great potential application value is achieved on the earth screen conducive and anticorrosive aspects.

The invention provides a stainless steel degreasing agent, which comprises the following components in percentage by weight: 5 to 25 percent of organic solvent, 2 to 5 percent of corrosion inhibitor, 10 to 25 percent of surfactant, 5 to 10 percent of inorganic salt, 1 to 3 percent of defoaming agent and the balance of deionized water, wherein the organic solvent is bromohydrocarbon; the corrosion inhibitor is sodium benzoate, ammonium benzoate, triethanolamine, ethanolamine or benzotriazole; the surfactant is one or more of alkylphenol polyoxyethylene ether and fatty alcohol-polyoxyethylene ether; the inorganic salt is alkaline salt; and the defoaming agent is tributyl phosphate, organic silicon, oleic acid or sodium oleate. The stainless steel degreasing agent can replace the currently used ODS cleaning agents, can achieve the cleaning effect of the ODS cleaning agents, does not damage the surface of the stainless steel, has obvious cleaning effect, can clean a large number of products, and does not harm a human body; and the preparation method is simple, safe, and environment-friendly.

The invention provides a photosensitive resin used in 3D printing, and its preparation method. The photosensitive resin is prepared by using 35-40 parts of acrylate, 35-40 parts of epoxy resin, 20-30 parts of a diluent, 0.1-5 parts of an antifoaming agent, 0.1-5 parts of a leveling agent, 1-10 parts of a cationic initiator and 1-10 parts of a free radical photopolymerization initiator. The photosensitive resin prepared in the invention has the characteristics of fast forming speed, small irritation, simple process, low cost and the like, and can be directly applied in 3D printing to make products with complex structures.

The invention discloses a polymer cement waterproof coating which is formed by mixing a liquid material and an inorganic powder material based on a mass ratio of 1:1, wherein the liquid material comprises the following components: 60-80% of polymer emulsion, 0.5-1% of wetting dispersant, 0.05-0.1% of antifoaming agent, 1-5.0% of anti-settling agent, 1-5.0% of coalescing agent, 0.5-1% of mildew-proof preservative, 1-2% of leveling agent and the balance of water; and the inorganic powder material comprises the following components: 35-50% of cement with strength grade of 42.5, 10-15% of admixture, 5-10% of calcium carbonate, 0.1-0.5% of water reducing agent, 1-5% of instant sodium silicate, 1-% of aluminum stearate, 0.05-0.1% of thickening agent, 0.05-0.1% of triethanolamine and the balance of quartz sand. Compared with the traditional JS waterproof coating, the tensile strength, stretch rate, impermeability and secondary impermeability pressure of a film of the polymer cement waterproof coating disclosed by the invention are greatly improved.

The invention relates to energy-saving repairing engine lubricating oil. The engine lubricating oil is characterized by comprising the following components in percentage by weight: 70-95% of base oil, 1-8% of detergent, 1-8% of dispersant, 0.5-9% of viscosity index improver, 1-70 ppm of antifoam agent, 0.1-1% of pour point depressant, 0.1-1% of antioxidant, 0.1-5% of oil-soluble nano lanthanum trifluoride and 0.1-5% of oil-soluble nano copper (alloy). The invention uses the oil-soluble nano copper (alloy) and the oil-soluble nano lanthanum trifluoride which haverepairing property and high antiwear lubricating property as the additives, thereby having favorable effects of energy saving and emission reduction. The invention is especially suitable for automobiles, and can improve the airtightness of an automobile engine and increase the power, thereby performing the functions of saving energy, reducing emission and protecting the engine.

The present invention provides a preparation method for a light-heat dual-cured woodware UV varnish coating. The method comprises: uniformly mixing an acrylic acid monomer, a catalyst and a polymerization inhibitor; adding the resulting mixture to epoxy resin with a temperature of 90-120 DEG C to carry out a reaction at a certain temperature; adopting acid value detecting to monitor the extent of the reaction, wherein the epoxy acrylate (EA) is obtained when the acid value is reduced to less than 5 mg/g; adding a thermal initiator, a photoinitiator, an antifoaming agent, a wetting and dispersing agent, a thickening agent and a leveling agents to the EA, then mixing and stirring to obtain the UV varnish coating. The prepared UV varnish coating through the method provided by the present invention has the dual functions of light curing and heat curing, the surface dry can be rapidly achieved in 4-8 seconds under the light intensity of 250-400 mJ/cm<2>, the film forming and the curing can be achieved in 1-5 hours at the temperature of 50-70 DEG C. In addition, the prepared UV varnish coating has characteristics of high adhesion, good chemical corrosion resistance, high film hardness and low cost, and provides more excellent construction performance, curing method and film performance than ordinary UV-cured coatings.

The invention discloses a high-heat-conductivity insulation low-viscosity epoxy resin pouring sealant and a preparation method thereof. The pouring sealant comprises a component A and a component B, wherein the component A is prepared by blending an epoxy resin, a reactive diluent, an antifoaming agent and an inorganic heat conductivity filler which is treated by a silane coupling agent; and the component B is a curing agent. According to the pouring sealant, aluminum oxide and zinc oxide are adopted to provide high heat conductivity and insulation properties, the heat conductivity coefficient can be 1.75-2.23W.m.K, the volume resistivity is 3.25-5.91*10<15>omega/cm, the viscosity of the pouring sealant is greatly reduced by adopting the reactive diluent containing a plurality of active end groups, and the viscosity of the pouring sealant is 19,800-29,800mPa.s (25 DEG C), so that the pouring sealant is beneficial for pouring; and by using a modified acid anhydride as the curing agent, the operable time of the pouring sealant at 25 DEG C can be more than 8h.

The invention discloses an insulating heat conduction high-temperature resistant electrical appliance coating which consists of the following components in percentage by mass: 30-60% of epoxy organic silicon resin, 1-20% of common filler, 10-50% of aromatic hydrocarbon solvent, 1-10% of ester solvent, 0.1-2% of antifoaming agent, 1-5% of coupling agent and 20-50% of heat conduction filler. A preparation method of the insulating heat conduction high-temperature resistant electrical appliance coating comprises the steps of sufficiently dispersing the components, grinding and filtering. The prepared insulating heat conduction high-temperature resistant electrical appliance coating has relatively good adhesion, high-temperature resistance and better heat conduction capability.

The invention relates to an aqueous self-cleaning transparent heat-insulated nano-dope capable of fully shielding infrared ray and ultraviolet ray and a preparation method. The dope comprises the following components in percentage by weight: 30%-70% of film-forming resin, 5%-30% of nano-ATO dispersion, 1%-10% of nano-LaB6 dispersion, 1%-15% of nano-WO3 dispersion, 5%-15% of co-solvent, 2%-10% of film-forming assistant, 0.5%-5.0% of assistant and 5%-25% of deionized water. The preparation method comprises the following steps of: dropping the nano-ATO dispersion, the nano-LaB6 dispersion and the nano-WO3 dispersion into aqueous fluorocarbon resin while stirring, stirring for 30-40 min, orderly adding antifoaming agent, wetting agent, the film-forming assistant, thickening agent and accelerating agent, stirring the solution to obtain the self-cleaning transparent thermal-insulation nano-dope. The dope is applied to the surfaces of cement, an automotive glass and a building glass, has self-cleaning function, can fully shield the infrared ray and ultraviolet ray and has obvious thermal-insulation performance.

The invention discloses a water-based capillary crystalline type concrete surface layer repairing and reinforcing material as well as a preparation method and application thereof. The material comprises 48-60 parts of lithium silicate, 20-28 parts of potassium silicate, 24-30 parts of sodium silicate, 2-10 parts of organosilicon, 0.5-2 parts of a coagulant, 0.8-1.8 parts of a waterproof agent, 0.1-0.25 parts of a surfactant, 0.2-1 part of a reaction retarder, 0.1-0.24 parts of an anti-freezing agent, 0.6-1.2 parts of fluosilicate, 0.1-0.2 parts of an antifoaming agent, 0.08-0.16 parts of a multifunctional auxiliary agent, 0.5-2 parts of an early strength agent and 95-115 parts of water. The water-based capillary crystalline type concrete surface layer repairing and reinforcing material hasthe characteristic of quick strength improvement, has an obvious repairing effect on concrete and mortar, and can repair and heal cracks and fine cracks, so that the water permeability resistance ofthe concrete can be improved. The water-based capillary crystalline type concrete surface layer repairing and reinforcing material is good in durability, long in service life, simple and convenient toprepare and convenient to construct.

The invention relates to three-dimensional network graphene for a lithium battery and a preparing method thereof. The preparing method of the three-dimensional network graphene for the lithium battery comprises the steps that firstly, high-purity expanded graphite, an anion type organic surface active agent, a dispersing agent, an antifoaming agent and a solvent are fully mixed, so that thick few-layer graphene slurry is obtained; liquid swelling high polymer materials are added, composite slurry is obtained after even mixing, and the composite slurry is coated in holes of porous foam materials; finally, the porous foam materials are fully carbonized and then are further processed, so that three-dimensional network graphene powder is obtained. The graphene prepared through the method is of a porous network structure on the microscopic scale, and thus the graphene is high in specific surface area, high in conductivity, high in heat conductivity and good in electrolyte wettability; when the graphene is mixed into positive electrode and negative electrode materials of the lithium battery for manufacturing pole pieces, the electron conduction can be effectively improved, the internal resistance of the battery can be greatly lowered, the amount of heat generated when the battery is charged and discharged is educed, the power density, the energy density and the safety of the battery are further improved, and the service life of the battery is prolonged.

A coating composition for fabrics includes wetted microspheres containing a phase change material dispersed throughout a polymer binder, a surfactant, a dispersant, an antifoam agent and a thickener. Preferred phase change materials include paraffinic hydrocarbons. The microspheres may be microencapsulated. To prepare the coating composition, microspheres containing phase change material are wetted ahd dispersed in a dispersion in a water solution containing a surfactant, a dispersant, an antifoam agent and a polymer mixture. The coating is then applied to a fabric. In an alternative embodiment, an extensible fabric is coated with an extensible binder containing microencapsulated phase change material to form an extensible, coated fabric. The coated fabric is optionally flocked. The coated fabrics are manufactured using transfer techniques.

The invention discloses a flat varnish for waterborne wood, comprising the following components in parts by weight: 30-70 percent of waterborne acrylic emulsion, 0-30 percent of waterborne aliphatic polyurethane and mixture emulsion, 3-10 percent of film forming aid, 0.01-2 percent of antifoaming agent, 0.01-2 percent of dispersing agent, 0.1-5 percent of extinction powder, 0-2 percent of wettingagent, 0.01-2 percent of rheological additive, 0.01-2 percent of wax additive, 0.01-2 percent of hand-feeling addictive, 0.01-2 percent of thickening agent, 0.01-2 percent of ammonia water, 0.01-2 percent of coupling agent and 5-30 percent of water. The flat varnish for waterborne wood has the advantage of ensuring that a varnish film has better fullness, hardness, high chemical resistance, super-strong hand feeling and strong adhesive force on an oil primer. In addition, the flat varnish for waterborne wood can solve the compatibility between the aquosity and the oilness, ensure the varnish film cannot fall off after being dried and can meet the requirement for consumers on high environmental protection, low odor and less pollution.

The invention belongs to the technical field of building materials, and in particular relates to a phosphorus slag powder doped dry powdered anti-crack mortar. The phosphorus slag powder doped dry powdered anti-crack mortar is prepared from ordinary Portland cement, river sand, phosphorus slag powder, slag powder, slag powder activity excitant, cellulose ether, polypropylene fiber, wood fiber, modified attapulgite, a defoaming agent and a water reducing agent. In the invention, the average particle size of the phosphorus slag powder is 30-40 nu m, the specific surface area measured by nitrogen adsorption is 350-400 m<2>/kg, and the mass coefficient K is 1.3-1.4, therefore, the anti-crack mortar has a certain potential volcanic ash activity; the dry powdered anti-crack mortar disclosed by the invention is convenient to operate and easy to control, can be used just after being added with water and stirred on the scene, and has the characteristics of good fluidity, good water retention, high bonding strength, good waterproof and water impermeable effects, strong crack resistance, and the like. A product of the anti-crack mortar disclosed by the invention both can be applied to the bonding and plastering of polystyrene foam boards for external wall insulation and extruded sheets, and also can be applied to occasions such as the repair of easily cracked parts, the refurbishment of ceramic tiles for old walls, and the like. According to the invention, phosphorus slag powder can be effectively used, the added value of phosphorus slag powder can be improved, and social and environmental benefits can be improved; the production cost of the anti-crack mortar can be lowered, and the economic benefit can be improved.

The invention relates to low-damage super guargum fracturing fluid, which comprises base fluid and crosslinked fluid, wherein the weight ratio of the base fluid and the crosslinked fluid is 50:1; the base fluid consists of 0.15 to 0.28 percent of super guargum serving as a thickener, 0.20 to 0.25 percent of discharge aiding agent, 0.15 to 0.20 percent of emulsifier, 0.60 to 1.20 percent of composite clay stabilizer, 0.10 to 0.15 percent of vegetable gelatin stabilizer, 0.05 to 0.08 percent of pH regulator, 0.05 to 0.10 percent of defoamer and the balance of water; and the crosslinked fluid consists of 6.0 to 10.0 percent of organic borate serving as a crosslinking agent, 0.15 to 0.25 percent of ternary gelbreaker and the balance of water. In the invention, the dose of the thickener is low; the residue content is low; the temperature resistance and shearing resistance are high; the gel breaking is complete; the filtration is low; and the cracking damage to the reservoir stratum and proppant is relieved.

The invention belongs to the technical field of building material and particularly relates to a heat insulating coating, which is composed of the following components: 220-250 parts of water by weight, 2 parts of cellulose by weight, 3.8-4.2 parts of dispersant by weight, 1.4-1.6 parts of SPA 202 antifoaming agent by weight, 1.4-1.6 parts of wetting agent by weight, 1.5 parts of multifunctional assistant by weight, 19-21 parts of propyleneglycol by weight, 180-220 parts of titanium pigment by weight, 75 parts of diatomite by weight, 50 parts of micro hollow glass bead by weight, 380-420 parts of elastic waterproof emulsion by weight, 2-2.5 parts of F111 antifoaming agent by weight, 2.5-3.5 parts of thickening agent by weight and 1.2-1.7 parts of anti-corrosion fungicide by weight. The invention has effects of warm-preserving, heat-insulating, radiation-protection, anti-stripping, waterproofing, fireproofing, anti-cracking, anti-freezing, brushing-resistance and dirt-resistance.