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

A glass fiber cloth, polyvinylidene fluoride technology, applied in fiber processing, textiles and papermaking, etc., can solve problems such as unreachable, and achieve the effects of small smoke generation, improved high temperature resistance, and good self-cleaning performance

Inactive Publication Date: 2012-07-25
南京彤天科技实业股份有限公司
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  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0022] 1. Preparation of polyvinylidene fluoride latex

[0023] Polyvinylidene fluoride latex embodiment formula is as follows:

[0024] Table 1

[0025]

[0026] According to the formula in the above table, each component was mixed uniformly to obtain the polyvinylidene fluoride latex of each embodiment.

[0027] 2. Preparation of finished products

[0028] The present invention selects conventional non-alkali tank kiln EW430 (3732) type glass fiber gray cloth as the base material of PVDF film, selects the latex that above-mentioned example 6 makes for use, adopts imported KR-RA type glue scraping machine, carries out the production experiment of sample. First, a layer of polyorganosiloxane resin coated on the lower surface of the glass fiber cloth, the coating amount is 53g / m 2 , the drying temperature is set to 170°C, and the polyvinylidene fluoride latex prepared in the above example 6 is also coated on the upper surface of the glass fiber cloth, and the coating amou...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/256D06M13/165D06M13/148D06M15/643
Inventor 竺林靳怀强王娟吕海
Owner 南京彤天科技实业股份有限公司
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