Alkali-free untwisted yarn with small deformation coefficient

Abstract

The invention discloses an alkali-free untwisted yarn with the small deformation coefficient. The alkali-free untwisted yarn with the small deformation coefficient is formed by an upper synthetic fiber layer, a middle impregnating compound layer and a bottommost glass fiber layer in a combined mode. The synthetic fiber layer is made of polyvinyl alcohol fiber. The glass fiber layer is made of alkali-free alumina silicate glass. The polyvinyl alcohol fiber accounts for 51%-60% of the total weight of the alkali-free untwisted yarn with the small deformation coefficient, the impregnating compound accounts for 2%-11% of the total weight of the alkali-free untwisted yarn with the small deformation coefficient, and the alkali-free alumina silicate glass accounts for 37%-39% of the total weight of the alkali-free untwisted yarn with the small deformation coefficient. The alkali-free untwisted yarn with the small deformation coefficient has the advantages of being resistant to the high temperature, capable of achieving heat preservation and insulation, waterproof, small in deformation coefficient and the like.

Description

technical field [0001] The invention relates to an alkali-free and twist-free yarn with a small deformation coefficient. Background technique [0002] Glass cloth The glass cloth produced in my country is divided into two types: non-alkali and medium-alkali. Most foreign countries are E-GLASS non-alkali glass cloth. Glass cloth is mainly used in the production of various electrical insulating laminates, printed circuit boards, various vehicle bodies, storage tanks, boats, molds, etc. Medium-alkali glass cloth is mainly used in the production of plastic-coated packaging cloth and in corrosion-resistant occasions. The properties of fabrics are determined by fiber properties, warp and weft density, yarn structure and weave. The warp and weft density is determined by the yarn structure and weave pattern. The dense warp and weft plus yarn structure determines the physical properties of the fabric, such as weight, thickness and breaking strength. There are five basic weaves: p...