Method for preparing film material by coating polyvinylidene fluoride on glass fiber cloth

Abstract

The invention relates to a method for preparing a film material by coating polyvinylidene fluoride on glass fiber cloth. The method comprises the following steps of: mixing components uniformly in part by mass according to a latex formula to prepare polyvinylidene fluoride latex, coating the latex on the surface of the glass fiber cloth to form a coating, keeping for 10 to 15 minutes at the temperature of between 185 and 195 DEG C, cooling, curing, and thus obtaining the film material, wherein the coating quantity of the latex on the surface of the glass fiber cloth is 20 to 400 g / m<2>; the latex formula contains 100 parts of polyvinylidene fluoride and 50 to 450 parts of solvent; and the solvent is selected from one of 1,4-butyrolactone, N,N-dimethyl acetamide and dimethyl sulfoxide. Compared with the original glass fiber cloth, the prepared film material has the advantage that: long-term acid and alkali resistance, high-temperature resistance, flame-retardant property and the like are remarkably improved. The film material can be used as an ideal material for industrial protection, electric welding screening, fire proofing in halls and smoke-proof inorganic roller shutters, and can be used for heat insulation coatings of heaters or freezers and the like.

Description

technical field [0001] The invention relates to a method for preparing a coating product of glass fiber cloth, in particular to a method for preparing a membrane material by coating polyvinylidene fluoride on glass fiber cloth. Background technique [0002] Glass fiber cloth is a fiber-like composition of glass components. It is an inorganic non-metallic material with excellent performance. The high temperature resistance of the cloth can be above 250°C); it can be woven and stitched into fabrics, and has excellent bonding properties with rubber, resin, etc. However, in some specific environments, the long-term acid resistance and alkali resistance of glass fiber cloth, The high temperature resistance is far from meeting the requirements of use, so it is necessary to modify the glass fiber cloth. Contents of the invention [0003] The purpose of the present invention is to provide a method for modifying glass fiber cloth, so that compared with the original glass fiber clo...

AI Technical Summary

Problems solved by technology

[0002] Glass fiber cloth is a fiber-like composition of glass components. It is an inorganic non-metallic material with excellent performance. The high temperature resistance of the cloth can be above 250°C); it can be woven and stitched into fabrics, and has excellent bonding properties with rubber, resin, etc. However, in some specific environments, the long-term acid resistance and alkali resistance of glass fiber cloth, High temperature resistance is far from meeting the requirements of use, so it is necessary to modify the glass fiber cloth

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