55results about How to "Has heat and humidity resistance" patented technology

This invention supply a epoxide resin combination and its preparation method, and its application as filling material of railway plate type orbit convex shape block platform. It takes ethoxyline resin, pigment, padding, curing agent and other accessory ingredient as main ingredient. This ethoxyline resin combination possess good construction usability, good cement bond property, appropriate elasticity and syntheses mechanical property, and has performance of ultraviolet radiation proof, moisture-proof.

The invention discloses a solar energy rear panel and a preparation method of the solar energy rear panel. The solar energy rear panel comprises an inner surface layer, a core layer and an outer surface layer from inside to outside. By a mass rate, the inner surface layer is 10%-20%, the core layer is 20%-40%, and the outer surface layer is 40%-60%. The inner surface layer and the outer surface layer are made of polyamide resin, fillings and additive, and the core layer is made of the modified polypropylene resin composition. The modified polypropylene resin composition comprises the following components: 100 parts of polypropylene resin, 5-50 parts of graft polyethylene, 0-2.5 parts of additive and 0-100 parts of fillings. Meanwhile, the invention discloses the novel modified polypropylene resin composition used for the solar energy rear panel. Due to the novel modified polypropylene resin composition, a final product obtained has good low temperature resistance and impact resistance, meanwhile anti-aging performance and especially has performance of humidity resistance and resistance to aging. The solar energy rear panel prepared by the novel modified polypropylene resin composition is better than other rear panels in terms of water absorption, water vapor permeability, and interlaminar peeling and has excellent electrical insulating property. A shrinking rate, hot air aging and insulation property required by the solar energy rear panel are met, and the novel modified polypropylene resin composition can be used for solar energy battery components manufacturing .

The invention provides a polyurethane resin composition, its preparation method, and using method of the same used as filling material of railway plate type dreg-free track convex block. The polyurethane resin composition is mainly used as filling material of railway plate type dreg-free track convex block, and mainly includes: polyether or polyester polyol, isocyanate or prepolymer of the same, pigment, filling and other auxiliary agent. Advantages of the prepared polyurethane resin are: construction manufacturability is better, bonding to cement of cured resin is good; the polyurethane resin is resistant of ultraviolet ray irradiation, moisture, heat, ageing and fatigue, and owns appropriate elasticity and integrated mechanical capability.

The invention discloses a polyamide backplane for a solar energy assembly. The polyamide backplane comprises an inner surface layer, a core layer, and an outer surface layer from the inside to the outside, wherein by mass, the ratio of inner surface layer to the core layer to the outer surface layer is 10-20:60-80:10-20. The inner surface layer and the outer surface layer are made from a polyamide resin, fillers and additives; the core layer is made from a modified polyamide resin composition; and the modified polyamide resin composition comprises a polyamide resin, grafted polyethylene, a polypropylene resin, fillers and additives. The novel polyamide backplane of the present invention is prepared by using coextrusion technology, the final product obtained has excellent adhesion and interlayer peeling force, anti-aging, particularly anti-damp and heat aging performance, and also has low saturation water absorption, low water vapor transmission and excellent electrical insulating properties, and is easy in preparation and low in cost, suitable for industrial production.

The invention relates to a high temperature solvent resistant acrylate pressure sensitive adhesive which comprises the following components in parts by weight: 150-250 parts of 2-ethylhexyl acrylate, 50-100 parts of butyl acrylate, 3-10 parts of acrylic acid, 3-10 parts of hydroxyethyl acrylate, 10-20 parts of vinyl acetate, 15-35 parts of bornyl isoacrylate, 0.5-3 parts of azobisisobutyronitrile, 0.3-2 parts of N-hydroxymethyl acrylamide and 400-600 parts of ethyl acetate. The mechanical property, high temperature resistance and weather resistance of the emulsion type acrylate pressure sensitive adhesive are improved, so that the application range of the emulsion type acrylate pressure sensitive adhesive is widened, and the pressure sensitive adhesive has the characteristics of high viscidity, high temperature resistance, damp-heat aging resistance and low cost.

Provided is a polyurethane foam which has excellent heat resistance and the like. This polyurethane foam is obtained from a material that contains a polyol and a polyisocyanate. The polyol contains a polyester polyol, and the polyisocyanate contains a diphenylmethane diisocyanate-based isocyanate. It is preferable that the polyester polyol has one or more side chains, each of which is composed of an alkyl group. This polyurethane foam is able to be used as a sound insulation material for vehicles.

The invention discloses a solar cell base film made from norbornene copolymer, which is characterized in that the base film is a single-layer structure which is made from norbornene copolymer, PC (polycarbonate), EVA (ethylene vinyl acetate) and fillings, or norbornene copolymer, POE (polyolefin elastomer), EVA and fillings, or norbornene copolymer, PP (polypropylene), EVA and fillings, or norbornene copolymer, eutectics of PET (polyethylene terephthalate) and fillings; and the base film of the single-layer structure is obtained by processing by the melt extrusion technology. The solar cell base film made from norbornene copolymer disclosed by the invention has the characteristics of resistance to heat and humidity, ageing, tear and hydrolysis, high barrier property to water vapor, high insulating property, high strength, stable size and easiness in processing and shaping, is good for protecting a solar cell module, and is capable of prolonging the service life of the solar cell.

The invention discloses a composite wax emulsion, which is prepared by mixing the following components: wax, emulsifier and deionized water. The compounded wax emulsion of the present invention is compounded with three components of palm wax, liquid paraffin and beeswax, and emulsified by a high-performance emulsifier. The wax emulsion has the advantages of high stability, low viscosity, rust resistance, heat and humidity resistance, high and low temperature resistance, chemical medium resistance, water resistance and the like.

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 relates to the technical field of sealing materials, in particular to a preparation method of a high-performance single-component dealcoholization room temperature vulcanized silicone rubber sealant .The sealant is prepared from, by weight, 150-200 parts of alpha, omega-dyhydroxyl polydimethylsiloxane, 5-40 parts of a crosslinking agent, 80-300 parts of functional filler, 2-10 parts of a catalyst and 0-20 parts of a plasticizer .The functional filler is composite particles prepared by adopting nano calcium carbonate as the nucleus and adopting polydivinylbenzene as a shell through a dispersion polymerization method, wherein the particle size is 50-90 nm; the functional filler shell is polydivinylbenzene, has the good hydrophobicity and can be wound around chain segments of a matrix or embedded in the matrix in an anchored mode, the composite particles on a micelle interface has the fiber-bridge effect on the matrix, and the effect of increasing the capacity of the single-component dealcoholization room temperature vulcanized silicone rubber sealant is achieved .The rubber sealant is good in adhesiveness, and the surface drying time is shorter than 10 min; due to the fact that the price of the filler is low, the comprehensive material cost can be lowered .

The invention belongs to the field of a cable and especially provides a solar photovoltaic cable applied to a photovoltaic solar system. The solar photovoltaic cable mainly comprises a conductor, an insulating layer and a sheath. The insulating layer comprises an inner insulating layer and an outer insulating layer. The inner insulating layer is made of a -40 DEG C-125 DEG C low-smoke zero-halogen radiation cross-linking polyolefin material, of which the volume resistance is 1.0*1014-9.0*1017 Omega.cm when the temperature is 20 DEG C. The outer insulating layer is made of a -40 DEG C-125 DEG C low-smoke zero-halogen anti-flaming radiation cross-linking polyolefin material, of which the volume resistance is 1.0*1012-9.0*1015 Omega.cm when the temperature is 20 DEG C and the oxygen index is 24-46. The thickness of the inner insulating layer is 0.1 mm-1.3 mm. The thickness of the outer insulating layer is 0.2 mm-1.3 mm. The advantages lie in that the external diameter of the finished product is reduced by 16.7%; weight is reduced by 49.1%; the decrease amount of the thickness of the insulating layer is 42.5% of the prior art; working performances, such as acid and alkali resistance, humidity and heat resistance, ozone resistance and ultraviolet resistance and the like are improved; and the service life of the cable is prolonged.