40 results about "Water resistance" patented technology

The object of the present invention is to provide a thin film which has excellent heat resistance and water resistance together with excellent flexibility, and a thin film laminate comprising the thin film, and the present invention provides a thin film comprising a heat-resistant fluid between layers comprising heat-resistant flakes.

The invention discloses a modified phosphogypsum highway subgrade filler and a preparation method thereof. The method comprises the following steps: aging phosphogypsum for more than 5 days to obtain a material A; calcining the material A at 160-200 DEG C for 1.5-2.5 hours to obtain a material B, and naturally cooling the material B; uniformly mixing 91-93 wt% of the material A and 7-9 wt% of the material B to obtain a material C; and adding water, which accounts for 12-16 wt% of the material C, into the material C, and stirring uniformly to obtain the modified phosphogypsum highway subgrade filler. The phosphogypsum is calcined at controlled temperature for controlled time according to the chemical characteristics of the calcined phosphogypsum to obtain the modifier, thereby enhancing the gelation property in the phosphogypsum, improving the stability and water resistance of the internal structure and obtaining the subgrade filler satisfying the highway engineering requirements. The modified phosphogypsum highway subgrade filler effectively solves the problem that the existing phosphogypsum is restricted to the local doping materials and is low in consumption.

The invention discloses colored continuous-phase silicone-acrylic emulsion reactable with protective glue, prepared from, by weight, 130-180 parts of water, 50-90 parts of methyl methacrylate, 60-90 parts of 2-ethylhexyl acrylate, 10-20 parts of butyl acrylate, 0.5-9 parts of hydrophilic unsaturated organic acid, 3-7 parts of a functional monomer, 0.3-2.5 parts of an anionic emulsifier, 0.2-2 parts of an initiator, 0.05-0.25 part of an oxidant, and 0.05-0.25 part of a reducing agent; the prepared colored continuous-phase silicone-acrylic emulsion reactable with protective glue has excellent transparency, weatherability and paint formulating stability, can engage in directional crosslinking reaction with protective glue, and has excellent water resistance and water white resistance as no thickeners are added to the colored continuous phase.

The present invention relates to the technical field of water-based coatings, and in particular relates to good-weather and water resistance water-based alkyd resin, alkyd resin is obtained by fatty acid method, and by reaction of epoxy groups of epoxy organosiloxane and alcoholic hydroxyl groups and carboxyl groups of an alkyd resin molecular chain, organosiloxane chain segments are introduced into the water-based resin system for synthesis of the water-based epoxy organosiloxane-modified alkyd resin with excellent water resistance, stain resistance, weather resistance, smoothness and corrosion resistance. An epoxy organosiloxane monomer contains a methoxysilane inorganic active functional group, silicon hydroxyl formed by hydrolysis of the functional group may be condensed with inorganic material surface hydroxyl to improve the water-based alkyd resin adhesion to a metal, glass and plastic substrate, meanwhile by the introduction of the organosiloxane chain segments into the alkyd resin branched portion, the drying properties, weather resistance, heat resistance and water resistance of the water-based alkyd resin can be greatly improved.

The invention relates to a high-temperature iron-based zeolite molecular sieve honeycomb type denitration catalyst and a preparation method thereof, and belongs to the technical field of atmospheric pollution treatment technologies and environmentally friendly catalyzing materials. The preparation method comprises the following steps: mixing ferrous salts with ferrite; synthesizing a zeolite molecular sieve, natural zeolite molecular sieve powder, attapulgite clay or kaolin, glass fibers, an organic binding agent, wood pulp or sesbania cannabina powder, stearic acid and glycerinum; and carrying out mixing, ageing, extrusion forming, drying and roasting to obtain the iron-based zeolite molecular sieve honeycomb type denitration catalyst. According to the catalyst, the zeolite molecular sieve and natural raw mineral materials which have excellent thermal stability are used as carriers, and the running stability, the sintering resistance and the mechanical strength of the catalyst in a high-temperature environment are improved. The obtained honeycomb type denitration catalyst has good water resistance and sulfur poisoning resistance, and the conversion ratio of oxynitride is greater than 90% under the conditions that the temperature is in the high-temperature range of 400-600 DEG C and the air speed is 10,000 h<-1>.

The invention discloses a plant cultivation bowl and a production method thereof. The plant cultivation bowl comprises a cultivation bowl body, which is a column with one end and the other end closed, and the inner diameter of the closed end is smaller than that of the open end; a movably connected isolating layer is arranged close to the closed end to form a chamber with the closed end; nutrient solution mixed with compound microorganisms is filled inside the chamber; the isolating layer is provided with a plurality of through holes; the cultivation bowl body is formed by pressing bentonite, cattle chip, straw, bean pulp, humic acid and starch; the outer layer of the upper portion of the isolating layer is coated with hydrogel; hydrogel on the outer layer of the cultivation bowl body is coated with degradable plastics. The invention also provides a production method of the plant cultivation bowl. The plant cultivation bowl is degradable and can provide nutrition for plants planted inside the bowl, has the advantages of being high in water resistance and water retaining property and can improve the disease resistance of the plants. The plant cultivation bowl is particularly applicable to improvement of saline-alkali lands in dry regions or saline-alkali regions.

The invention relates to a dyeing and finishing technology of a nano multifunctional fabric, which comprises the processes of fabric singeing, cold padding, reverse padding, oxygen blenching, washing, mercerizing, emerizing, dyeing, functional finishing and the like, so the fabric has multiple functions of water resistance, oil resistance, fouling resistance, easiness in decontamination and non-ironing. A silk emerizing roller carries out fabric emerizing treatment, so the fabric has a peach skin style. The fabric undergoes a special finishing and processing procedure to obtain the corresponding functions to meet certain special use requirements, the fabric has a strong functional finishing purpose, a good effect and a high product additional value, in the meanwhile, the functionality of the fabric has a good environmental protection performance, production and operation safety, and a final product is not toxic, has no side effect and good function durability.

The invention discloses uvioresistant fluorocarbon metal anti-rust paint and a preparation method thereof. The uvioresistant fluorocarbon metal anti-rust paint is prepared from slurrying raw materials and paint mixing raw materials; a paint film formed by the anti-rust paint has high hardness, scratch resistance, strong adhesion, salt fog resistance, saline resistance, acid-base resistance, water resistance, oil resistance, ultraviolet light resistance, aging resistance, low temperature resistance and heat and humidity resistance; the anti-rust paint can be used on the surface of an old paint film repeatedly; and the damage to the paint film can be avoided, and the ultra strong toughness of the paint film can be guaranteed. The service life of the common paint film can be 8 to 10 years.

The invention relates to novel magnesium oxysulfate cement-based fireproof coating. The fireproof coating is hysteretic in foaming after coating. The surface drying time of the fireproof coating is 80-360 minutes, the fire-resistant time of the fireproof coating is 120-160 minutes, the softening coefficient of the fireproof coating is 0.8-0.9, and the heat conductivity coefficient of the fireproofcoating is 0.08-0.20W/m<2>*K. The fireproof coating comprises, by weight, 30-60 parts of low-grade light calcined magnesium oxide powder, 10-30 parts of light aggregate, 15-30 parts of magnesium sulfate heptahydrate powder, 0.1-1 part of waterproof agent, 0.1-1 part of fiber, 0.1-10 parts of early strength agent, 1-5 parts of active metal foaming agent and the balance water. The novel magnesium oxysulfate cement-based fireproof coating has the advantages that the fireproof coating is low in heat conductivity coefficient, good in thermal stability, capable of preventing foam generated by physical and chemical foaming from breaking during spraying by using the hysteretic foaming technology and uniform in quality; the fireproof coating is good in corrosion resistance, high in safety performance, stable in quality, good in water resistance and high temperature resistance, good in ultraviolet resistance, long in service life and capable of satisfying safety fireproof requirements.

The invention provides a waterproof and ventilating structure of a solar junction box. A cover plate is installed on a hole in the front end of a body of the solar junction box, the cover plate is connected with the body in a sealed mode through a seal ring, exhaust holes are formed in the cover plate, a waterproof ventilating membrane is correspondingly arranged in the exhaust holes, the air in the solar junction box can be exhausted through the waterproof ventilating membrane, and water vapor outside the solar junction box cannot enter the solar junction box. In addition, due to the facts that sealing clamping grooves are further formed in the positions of connection between the solar junction box and cables of a cable connector, and sealing is carried out through corresponding cable seal rings, and the possibility that the water vapor enters the solar junction box through the positions of the connection between the solar junction box and the cables is eliminated. The waterproof and ventilating structure of the solar junction box is applicable to the solar junction box which is installed outdoors, and has the advantages that the effect of water resistance and the effect of ventilation are good, the service life is long, and the problem that devices inside the solar junction box can be easily influenced by the environment to cause reduction of performance is solved.

The invention discloses a manufacturing method of a bamboo spring bracket. The manufacturing method of the bamboo spring bracket comprises the following steps of bamboo chip pretreatment, gluing and assembly, molding and demolding. The manufacturing method of the bamboo spring bracket has the advantages that traditional metal and rubber spring materials are replaced, and natural bamboo wood is selected, thereby being capable of improving the environmental protection performance and natural degradability of the product; the bamboo wood is treated by using a high temperature poaching, bleaching,drying and carbonization method to obtain the better water-proof bamboo wood; and a bamboo spring material with better mechanical and elastic properties and shock absorption and noise reduction functions is generated by adopting bamboo chips with different thicknesses and steel tubes with different diameters and using a mode of stacking and gluing of multi-layer bamboo chips. The manufacturing method of the bamboo spring bracket can be applied to automobile cushions or middle plate beds.

The invention discloses aqueous acrylic resin which can degrade formaldehyde by using visible light. The aqueous acrylic resin is mainly prepared from alkyl methacrylate, alkyl acrylate, alkyl carboxylic acid, a crosslinking agent, a visible light catalyst, an initiator and an emulsifier. The invention also discloses a preparation method of the aqueous acrylic resin which can degrade formaldehydeby using visible light. The aqueous acrylic resin has the advantages that a good film forming property and water resistance are shown, the physical-chemical properties, mechanical properties and adhesiveness of the polymer are all improved, and under the premise of no change of all performance of the aqueous acrylic resin, energy level transition of TiO2 can be achieved under visible light so as to generate hydroxyl anions and superoxide anions through catalytic oxidation, so that the purpose of fixing and/or scavenging of formaldehyde is achieved; and the aqueous acrylic resin can be widely used in multiple fields of the coating industry.

The invention relates to the technical field of fine chemistry and provides a dye-type neutral ink and a preparation method thereof. The preparation method is as below: mixing a self-made dye-type color paste, a film forming emulsion, a thickening agent, a humectants, a surfactant, a pH conditioning agent, a corrosion inhibition antirust agent and water according to a certain mass percentage; fully stirring; and defoaming to obtain a finished product. The dye-type neutral ink has advantages of simple preparation method, easily available raw materials, stable performance, smooth writing, water resistance and good sun resistance.

The invention discloses an environmental-friendly water-resistance high-strength ceramic gum and a preparation method. The gum comprises, by weight, 20-50 parts of acrylic emulsion, 50-80 parts of artificial quartz, 1-6 parts of hydroxypropyl methylcellulose slurry, 0.05-0.2 part of a water reducer and 0.1-2 parts of a preservative, wherein the mass fraction of the hydroxypropyl methylcellulose slurry is a hydroxypropyl methylcellulose aqueous solution. The invention provides the preparation method of the environmental-friendly water-resistance high-strength ceramic gum with a simple technology and low cost, and the method aims at improving the doping amount of the quartz powder while the constructivity of the gum is ensured to improve the flexibility and water resistance of the gum.

The invention discloses a coating process of the outer surface of a sculpture. The coating process comprises the following steps that 1, the sculpture is integrally polished for several times by a 40-50-mesh sand tray until the surface roughness of the sculpture is 30-50 microns, and a treatment layer is uniformly smeared on the surface of the sculpture; 2, primer is sprayed by a high-pressure airless spraying device within 6 hours after the treatment layer is smeared, wherein the thickness of the primer is controlled to 30-40 microns, and the drying treatment is conducted for 8-12 hours after the spraying is completed; 3, defects of the surface, generated after the primer is sprayed, are remedied with unsaturated polyester resin putty, and after completely cured, the surface is polished with abrasive paper to be smooth; 4, intermediate paint is sprayed by the high-pressure airless spraying device, wherein the thickness of the intermediate paint is controlled to 30-40 microns, and the drying treatment is conducted for 8-12 hours after the spraying is completed; and 5, finish is sprayed by the high-pressure airless spraying device, wherein the thickness of the finish is controlled to 30-40 microns. The coating process has the advantages that the adhesive ability, the water resistance, the chemicals resistance, the light resistance and the temperature resistance of a paint film can be improved remarkably, and the paint film has a self-cleaning property and weather resistance.

The invention provides an aquaculture method of ostrea plicatula. The method comprises the following steps: 1. selecting an aquaculture area according to the conditions of 5-15m water depth during low tide, 40-60cm/s water speed, substrate of sediment or sand, over 50cm transparency, no eddy and no reverse bump flow; 2. selecting a seedling collection ground which locates in the border region between middle and low tidal regions of inner bar with parent oysters and is the sandy mud flat of slower flow rate and flat terrain; 3. arranging a seedling collection support through taking moso bamboo or batten as support bar and putting up a shelf of 1-1.5m wide and 40-50cm away from the bottom; 4. arranging a cultivation stand of 1.5-2m space among shelf pillars and 1-1.5m away from the bottom; 5. horizontally hanging ostrea strings in the direction of following wind with the string spacing of 15-20cm. Through horizontally hanging ostrea strings which makes water resistance small and keeps water flowing, the method avoids bottom mud rising, the asphyxiated death of ostrea strings in mud as well as the dropping and twining of ostrea strings. The aquaculture method of ostrea plicatula is suitable to be applied in shallow aquaculture.

The invention relates to rosin modified silicon wax and a preparing method thereof. The rosin modified silicon wax is mainly prepared from olefin, an aminosilane coupling agent, a rosin compound and an ether compound. When used in a waterproof agent, the rosin modified silicon wax is capable of effectively improving water resistance and increasing adhesive force to promote static and dynamic performance finally. The preparing method is simple and easy to operate.

The invention discloses a high-temperature-resistant insulation material applied to power equipment. The high-temperature-resistant insulation material is prepared from the following components in parts by weight: 10-30 parts of polyethylene, 2-10 parts of polyperfluorinated ethylene propylene, 7-10 parts of mica powder, 3-6 parts of butyl rubber, 3-5 parts of inorganic glass fiber, 7-8 parts of ethylene-propylene-diene-terpolymer rubber, 3-10 parts of polytetrafluoroethylene powder, 3-10 parts of alkali-free glass fiber cloth, 3-10 parts of ultraviolet light absorbents, 3-10 parts of epoxy resin, 1.5-3.5 parts of antioxidants and 0.5-5.5 parts of plasticizers. The invention provides a high-temperature-resistant insulation material applied to power equipment and a preparation method thereof. The prepared insulation material has excellent mechanical property, insulation property and high-temperature-resistant property, also has water resistance, weathering ageing resistance and high abrasion resistance, and can meet the requirements of the power equipment on high-temperature resistance and excellent mechanical property.

An adhesive used for moisture-proof fiberboards is disclosed. The adhesive comprises following raw materials by weight: formaldehyde, urea, resorcinol, oxidized starch, flour, polyvinyl acetate, an acid solution and an alkali solution. Beneficial effects of the adhesive are that comprehensive modification is performed through adding a small amount of the oxidized starch, the polyvinyl acetate and the resorcinol, curing time of the adhesive in fiberboard hot pressing is shortened, adhesive strength is increased, obvious characteristics including enhanced waterproofness, high mechanical strength, good dimension stability, and the like of the fiberboards are achieved, and problems that fiberboards under high-moisture environments are liable to expand and deform and strength is poor, and the like are overcome.

The invention relates to waterborne fireproof paint and a preparation method thereof. The waterborne fireproof paint is prepared from the following ingredients including 250HBR, TEGO 500, OROTAN 1124,BYK 022, 25-percent ammonium hydroxide, titanium dioxide, ammonium polyphosphate, tripolycyanamide, pentaerythritol, chlorcosane, modified vinyl acetate copolymer emulsion, optical stabilizing agentsBASF 1130 and de-ionized water. According to the preparation method, all ingredients are added into the de-ionized water; a mixture M with the fineness being smaller than 60mu m is obtained; then, the modified vinyl acetate copolymer emulsion and the foaming agents BYK 022 are added; finally, the optical stabilizing agents BASF 1130 are added; a finished product is obtained. The waterborne fireproof paint has the advantages that the fire-resistant time is long; the fire-resistant limit is as long as 180min; the impact resistance can reach 55kg.cm; the toughness is 2mm; the water resistance reaches 255h; the adhesion force is 1 grade. The production cost is reduced; the environment resources are saved.