47results about How to "Resistant to heat and humidity" patented technology

The invention discloses a high-temperature-resistant hot melt adhesive membrane for aluminum honeycomb boards, and a preparation method thereof. The high-temperature-resistant hot melt adhesive membrane for aluminum honeycomb boards is made from, by weight percent, 30-50% of polyester elastomer with above 180 DEG C of melting point, 10-40% of polyolefin copolymer modified by maleic anhydride, 0-40% of polyolefin copolymer, 10-30% of tackifying resin, 0-15% of filler, and 1-3% of functional aid. The components add up to 100%. The high-temperature-resistant hot melt adhesive membrane for aluminum honeycomb boards has the advantages of high adhesion strength, instantaneous resistance to the temperature up to 170-190 DEG C, and long-term resistance to the temperature up to 130 DEG C.

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 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 three-functionality-degree organosilicon polyurethane acrylate and a synthetic method thereof. The invention is characterized in that an epoxy radical silane coupling agent is used for modifying a primary amino radical parhelium radical silane coupling agent to obtain a modified silane coupling agent containing three functional groups with active hydrogen; vulcabond and polymer dihydric alcohol are used for carrying out a reaction to obtain a polyurethane performed polymer (1) with NCO radical groups on both ends; then, hydroxy acrylic acid ester and the polyurethane performed polymer (1) are used for carrying out a reaction to obtain a polyurethane performed polymer (2) with an NCO radical group on one end; and finally, the polyurethane performed polymer (2) and the modified silane coupling agent react to obtain the three-functionality-degree organosilicon polyurethane acrylate. The invention has simple technology of the synthetic process and easy control, a product has regular structure, narrower molecular weight distribution and good consistency, the materials have the excellent properties of humidity resistance, heat resistance, weather resistance, oil resistance, good flexibility and low surface energy, and the invention can be applied to the industries of paint and adhesives.

A fiber enforced resin based compound material transmission shaft pertains to a compound material transmission shaft, and is mainly applied to the transmission systems and precision instruments of such fields as mechanics industry, aviation industry and aerospace industry. The invention solves the problems of the existing compound material transmission shaft, such as poor high temperature resistance, abrasion resistance, humidity resistance, salt spray resistance, and impact resistance, etc. The invention comprises a structure layer, a surface layer (1), and a lining layer (3); the structure layer is a hollow shaft body (2) made of fiber enforced resin based compound material, the lining layer (3) and the surface layer (1) are respectively stuck on the inner surface and the outer surface of the hollow shaft body (2) made of fiber enforced resin based compound material. The invention has the advantages of high temperature resistance, abrasion resistance, corrosion resistance, comparatively strength and hardness, humidity resistance, salt spray resistance, and impact resistance, etc.

The invention discloses a raw material composition of a high-temperature-resistant polyimide resin heat-insulating plate. The raw material composition comprises polyimide, zirconium oxide, cenospheres and silane coupling agents, wherein the weight ratio of the polyimide, the zirconium oxide, the cenospheres and the silane coupling agents KH550 is 10: 1: 3: 1.5. Compared with an existing heat-insulating plate, the heat-insulating plate made of the raw material composition is more stable and resistant to a high temperature, the linear dilatation coefficient and the heat conductivity coefficient at the high temperature are substantially lowered, the purpose that the heat-insulating plate can be used at the high temperature is achieved, pollution cannot be caused to a working environment, and the heat-insulating plate is not prone to deformation.

The invention provides an insulating powder coating. The insulating powder coating comprises the following components in parts by mass: 40-70 parts of epoxy resin, 10-20 parts of a curing agent, 1-2 parts of a curing accelerator, 20-50 parts of filler, 5-10 parts of an auxiliary agent and 1-5 parts of pigment. According to the insulating powder coating provided by the invention, the epoxy resin, the curing agent, the curing accelerator and the filler are mixed, then the auxiliary agent and the pigment are added, the powder coating is prepared through a twin-screw extruder and a pulverizer, and then redundant impurities are removed through magnetic separation, so that the prepared insulating powder coating has excellent insulating property and excellent toughness, has strong binding power, low water absorption rate and good water resistance, has the characteristics of good damp and heat resistance, good heat resistance and good chemical resistance, and can be widely applied.

The invention discloses a comb-shaped multi-branched water-based polyurethane dispersion as well as preparation and application thereof. A preparation method comprises the following steps: 1) reactinga trifunctional or tetrafunctional polyhydroxy compound with isocyanate having an equal mole number as functional groups of the polyhydroxy compound by adopting a drop-wise adding method to form a product having a polyisocyanate functional group; 2) adding a polyol raw material dropwise and gradually into the product obtained in the step 1), wherein a molar ratio of a polyol to the obtained product is 1:2 to 1:1; 3) reacting the product obtained in the step 2) with a silane chain having a terminal hydroxyl group, wherein a mole number of the silane chain is 0.25-0.5 of a mole number of a product functional group; 4) reacting the product obtained in the step 3) with a hydrocarbon chain having a terminal hydroxyl group, wherein a mole number of the hydrocarbon chain is 0.33-0.5 of a mole number of a product functional group; and 5) further reacting the product obtained in the step 4) with isocyanate, a polyol and a chain extender to obtain the stable comb-shaped multi-branched water-based polyurethane dispersion.

The invention discloses an aerial high-temperature-resistant loose optical cable and a preparation method thereof. A coating layer 2 is arranged outside an optical fiber core 1; a polytetrafluoroethylene PTFE lapping buffer layer 3 is arranged outside the coating layer 2; a polyether ether ketone PEEK loose layer 4 is arranged outside the polytetrafluoroethylene PTFE lapping buffer layer 3; an aromatic polyamide fiber reinforcing layer 5 is arranged outside the polyether ether ketone PEEK loose layer 4; an ethylene tetrafluoroethylene copolymer ETFE jacket layer 6 is arranged outside the aromatic polyamide fiber reinforcing layer 5. The aerial high temperature-resistant loose optical cable has the characteristics of resisting high/low temperature of -55-125 DEG C for a long time, resisting bending, compression, ageing, corrosion, salt mist, mould and damp heat and being long in service life and high in flame resistance, can be used for providing reliable service under severe environment and is suitable for the high-speed signal transmission under aerospace, electronics and onboard special environment conditions.

The invention discloses a hybrid broussonetia papyrifera silage, which comprises the following raw materials: hybrid broussonetia papyrifera which is prepared into rubbed strips, molasses additive, lactic acid bacteria additive and cellulase additive, wherein the ratio of the raw materials in parts by weight: 100 parts of whole hybrid broussonetia papyrifera, 4 parts of molasses, 0.002 part of lactic acid bacteria and 0.1 part of cellulase. The broussonetia papyrifera is adopted as the raw material, the broussonetia papyrifera has the advantages of being fast in growth, high in adaptability, resistant to dry and cold, resistant to damp and heat, developed in root system, high in yield, resistant to cutting and the like, when the broussonetia papyrifera is used as the raw material of the silage, the raw material can not be affected by the environment easily, the quality of the produced silage is good, and due to the high fast-growing capacity, the yield of the produced silage is high. High moisture content of the broussonetia papyrifera raw material can cause nutrient loss and clostridium fermentation in the ensiling process, according to the invention, the moisture of the broussonetia papyriferais controlled to be 65% through airing before the broussonetia papyrifera is cut up and rubbed into strips, and the quality of the broussonetia papyrifera ensiling is guaranteed from the source.

The invention discloses a fluorine-containing thin film solar cell front film and a manufacturing process thereof, A fluorine-containing thin film solar cell front film includes a fluorine-containingmaterial film layer, adhesive layer, inorganic deposit, an insulating layer arranged from top down in sequence. At least one of PVDF, PFA, ETFE, and EFEP is included in that film layer of the fluorine-containing material, at least one of silicon dioxide, aluminum oxide, and titanium dioxide is included in the inorganic deposition layer, and at least one of PET and PBT is included in the insulatinglayer. The fluorine-containing thin film solar cell front film has the advantages of high water resistance, high light transmittance, strong ultraviolet ray resistance, good insulation, not easy toage, high hardness, high strength, hydrolysis resistance and damp and heat resistance. The process of the invention can promote the bonding strength of the front film of the thin film solar cell, ensure that the front film of the thin film solar cell is resistant to adverse outdoor environment, and improve the use safety of the front film of the thin film solar cell.

The invention provides a high-weather-resistant, torsion-resistant and bending-resistant control cable, and relates to the technical field of design of towline cables. The high-weather-resistant, torsion-resistant and bending-resistant control cable includes a cable core formed by mutual twisting of a plurality of reinforced insulating wire cores, an inner liner layer, a reinforced braided shielding layer and an outer sheath layer are arranged in sequence outside the cable core, each reinforced insulating wire core includes a conductor externally wrapped by an insulating layer, and the conductor is formed by intertwisting copper wires and Dupont fibers in the same direction; and the reinforced braided shielding layer is formed by braiding copper wires and Dupont fibers in a combined manner, each spindle of copper wires is provided with a piece of Dupont fiber, and the braiding density of the reinforced braided shielding layer is larger than 90%. The high-weather-resistant, torsion-resistant and bending-resistant control cable provided by the invention has the characteristics of excellent interference resistance, torsion resistance, bending resistance and the like, and can meet market requirements.

The invention discloses a rat and termite proof high-heat-dissipation photovoltaic cable and a preparation method thereof. The photovoltaic cable comprises a cable core, a low thermal resistance mineral filling material, a hot extrusion magnesium alloy cooling circular tube, a wrapping tape, a rat and termite proof protection layer and an outer protection layer, the cable core, the low thermal resistance mineral filling material, the hot extrusion magnesium alloy cooling circular tube, the wrapping tape, the rat and termite proof protection layer (an extrusion layer and a zinc plating fine round steel wire armor layer) and the outer protection layer are arranged in sequence from inside to outside, the cable core comprises a red insulation core and a black insulation core which are arrangedin parallel, and each insulation core is composed of a conductor layer and an insulation layer which is arranged on the outer side of the conductor layer. The cable has the excellent advantages of being low in smoke, free of toxicity, low in heat radiation, resistant to ultraviolet, environment, low temperature, dampness-heat and ageing and the like, the requirement of the cable that the servicelife is 30 years is met, the structure is flexible, the bending radius is small, and the laying requirements of various environments are met. The cable is especially suitable for occasions which are bad in environment and have the requirements of preventing rats and termites.

The invention discloses a thermal radiation coating for an automobile lamp. The thermal radiation coating for the automobile lamp is prepared from the following components in parts by weight: 10 to 25 parts of carbon nano-tubes, 20 to 45 parts of inorganic colloidal particles, 1 to 10 parts of a surfactant, 20 to 50 parts of a solvent, and 10 to 35 parts of other auxiliary agents. The thermal radiation coating disclosed by the invention mainly has the characteristics that heat on the surface of a decorative ring and in the decorative ring are radiated out of a lamp cavity at the infrared wavelength of 1 to 15 [mu]m by utilizing the high heat conductivity of the carbon nano-tubes, high infrared emission rate of the inorganic colloidal particles and the adhesion capacity of the organic surfactant, so that the surface temperature of a brushed or sprayed component is reduced, and mist in a lamp cavity is reduced. The thermal radiation coating obtained in the invention has the characteristics of high heat resistance temperature, high chemical stability, low volatility, convenience in coating, damp and heat resistance, temperature cycling resistance and the like, and can be applied to coating components, such as the decorative ring of the automobile lamp and the radiator, of an automobile.

The invention discloses a polyurethane sealant. The polyurethane sealant is prepared from silylated polyurethane, a filling, a plasticizer, a catalyst and a moisture scavenger through mixing. By utilizing silylated polyurethane, the polyurethane sealant has the advantages of polyurethane and an organic silicon material and has damp-hot resistance, oil resistance, chemical resistance, wear resistance and good storage stability. Meanwhile, by adding nano-calcium carbonate capable of well reinforcing silylated polyurethane, the polyurethane sealant has good comprehensive performance and economic and social benefits and is low in cost. Meanwhile, the polyurethane sealant further contains a mixture of sodium hydrogen carbonate particles and carbon powder, wherein the particle size of the mixture is less than 0.1mm. When a to-be-sealed position is filled with the sealant just now, the sealant is heated to above 50 DEG C by virtue of hot wind produced by a blowing machine, and the heating is stopped after 30 seconds. The invention provides a novel sealant with a good heat dissipation function.

The invention provides a high-low-temperature-resistant low-infrared-emissivity coating and a preparation method thereof. The coating is composed of a component A and a component B according to a weight ratio of 100: 46-47, and the component A is composed of the following components, by weight: 50-60 parts of low-molecular-weight liquid epoxy resin with the solid content greater than 98%, 46-56 parts of non-floating flaky metal aluminum powder, 4.5-5 parts of a dispersing agent, 0.1-2 parts of a leveling agent, 2.5-4 parts of an adhesion promoter and 19-24.5 parts of a special diluent. The component B is high-silicon-content liquid polyamino siloxane resin of which the solid content is greater than 90%; and the coating is a three-proofing (waterproof, salt mist-proof and damp-heat-proof) coating which can resist high and low temperatures and has an excellent infrared masking function within the temperature range of 25-400 DEG C.

The invention discloses a double-core tensile rat-proof anti-termite separable photovoltaic cable with a rated DC voltage of 1800V. The double-core tensile rat-proof anti-termite separable photovoltaic cable comprises two wire cores, a connecting rib and a sheath layer, wherein the two wire cores are connected through the connecting rib, and the sheath layer coats the wire cores to form a cable with cross section in a dumbbell shape; each wire core comprises a conductor layer and an insulating layer; and each conductor layer is composed of a conductor wire and a reinforcing wire, and each insulating layer coats the corresponding conductor layer. The double-core tensile rat-proof anti-termite separable photovoltaic cable can be easily torn along the connecting rib, is convenient in installation, and is low in production and installation costs.

The invention provides an amino resin modified novolac epoxy resin anti-corrosion stain-resistant powder coating and a metal precast slab anti-corrosion stain-resistant coating, which belong to the technical field of powder coatings. The amino resin modified novolac epoxy resin is used as a powder coating matrix, after the novolac epoxy resin is modified by the amino resin, an N-containing group can be introduced, the hardness and alkali corrosion resistance of the novolac epoxy resin are improved, meanwhile, the amino resin can improve the crosslinking density of the resin, and the alkali corrosion resistance is further improved. The powder coating provided by the invention contains the polytetrafluoroethylene-containing wax powder, and the polytetrafluoroethylene-containing wax powder has low surface energy and high stain resistance, and can migrate to the surface of a coating of the powder coating in the use process, so that the adhesion between cured concrete and the coating is reduced, and the demolding property of the coating is improved. The powder coating provided by the invention contains the silicon-containing filler, so that the coating surface has higher surface hardness and lower friction coefficient, and the wear resistance of the coating is improved.