Compound high-temperature cloth with enhanced structure

Abstract

The invention belongs to the technical field of high-temperature cloth application, and in particular discloses composite high-temperature cloth with an enhanced structure. The composite high-temperature cloth consists of a first polytetrafluoroethylene layer, a second polytetrafluoroethylene layer and multiple layers of packing layers arranged between the first polytetrafluoroethylene layer and the second polytetrafluoroethylene layer. The composite high-temperature cloth with the enhanced structure, provided by the invention has the following beneficial effects: 1, the size stability is good (the coefficient of elongation is less than 5 per thousand), the strength is high and the mechanical property is good; 2, the cloth is used between the low temperature of subzero 70 DEG C and the high temperature of 260 DEG C, has weather fastness and is anti-aging, and through practical application, such as by continuously placing at the high temperature of 250 DEG C for 200 days, the strength cannot be decreased, and the weight is also not reduced, meanwhile, by placing at the high temperature of 350 DEG C for 120h, the weight is only reduced by about 0.6 percent and at the ultra low temperature of subzero 180 DEG C, no crack generates, and the original softness is kept; 4, a gridding layer effectively increases the toughness of the whole composite structure, and the objective of reuse is realized.

Description

technical field [0001] The invention belongs to the technical field of high-temperature cloth application, and specifically relates to a composite high-temperature cloth with a reinforced structure. reuse. Background technique [0002] High-temperature cloth is a high-performance material made of suspended polytetrafluoroethylene (commonly known as plastic king) emulsion and impregnated with high-performance glass fiber cloth. [0003] The composite high-temperature cloth of the existing structure is generally a single-layer structure, that is, a layer of glass fiber cloth is impregnated on the polytetrafluoroethylene. In terms of insulation, temperature-resistant cladding materials, and environmental protection desulfurization of power plant exhaust gas, due to the environmental requirements of the used occasions, the single-layer structure can no longer meet the use requirements in the above-mentioned environments, and its high and low temperature resistance, corrosion re...

AI Technical Summary

Problems solved by technology

[0003] The composite high-temperature cloth of the existing structure is generally a single-layer structure, that is, a layer of glass fiber cloth is impregnated on the polytetrafluoroethylene. In terms of insulation, temperature-resistant cladding materials, and environmental protection desulfurization of power plant exhaust gas, due to the environmental requirements of the used occasions, the single-layer structure can no longer meet the use requirements in the above-mentioned environments, and its high and low temperature resistance, corrosion resistance and other properties Poor, the user has a large safety hazard, and at the same time the service life is short, the cost of replacement and maintenance is high, etc.

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