Novel glass fiber impregnating compound and preparing method thereof

Abstract

The invention discloses a novel glass fiber impregnating compound. The novel glass fiber impregnating compound is prepared from, by weight, 20-30 parts of vinyl water-borne epoxy resin, 20-30 parts of 3,4-epoxy group-6-methyl cydohexane formic acid-3,4-epoxy group-6-methyl cyclohexane methyl ester epoxy resin, 10-20 parts of hydroxypropylation modified pea starch, 3-5 parts of coupling agent, 0.5-2 parts of lubricating agent, 0.5-1 part of collecting agent, 0.5-1 part of surfactant, 0.5-2 parts of polyvinylpyrrolidone, 0-0.5 part of antistatic agent, 0.5-1 part of defoamer and 300-500 parts of water. By adding polyvinylpyrrolidone to the formula, adhesive force of the impregnating compound can be improved, viscosity of the impregnating compound can be improved, fiber breakage can be prevented, plasticity and stiffness can be improved, and broken filament generation can be reduced. Three film-forming agents are adopted; yarn impregnation speed is high, heat resistance is high, binding power is high, film-forming property is high, and protective property is high; protection and collection of glass fiber during high-speed jetting and rolling can be achieved easily, production efficiency is improved, and mechanical property of glass fiber is improved.

Description

technical field [0001] The invention relates to glass fiber production technology, in particular to a novel glass fiber sizing agent and a preparation method thereof. Background technique [0002] Glass fiber is an inorganic non-metallic material with excellent performance. There are many kinds. The advantages are good insulation, strong heat resistance, good corrosion resistance and high mechanical strength, but the disadvantages are brittleness and poor wear resistance. It is made of glass balls or waste glass through high-temperature melting, wire drawing, winding, weaving and other processes. The diameter of its single filament is several microns to more than 20 microns, which is equivalent to a hair. 1 / 20-1 / 5 of that, each bundle of fiber precursors consists of hundreds or even thousands of monofilaments. The glass fiber is often used as reinforcing material of composite material, electrical insulation and heat insulation materials, substrate and other national economy...

AI Technical Summary

Problems solved by technology

[0003] The sizing agent is an indispensable surface treatment material in the production of glass fiber. The quality of the glass fiber and the variety of varieties largely depend on the sizing agent. Without a good sizing agent, it is impossible to produce High quality and variety of glass fibers