Glass fiber sizing agent for roving cloth and preparation method thereof

Abstract

The invention discloses a glass fiber sizing agent for roving cloth. The glass fiber sizing agent is an aqueous solution of which the concentration is 3-6 percent by weight. A solute of the aqueous solution consists of the following components in percentage by weight in the terms of the total weight of the solute: 8-15 percent of coupling agent, 1-3 percent of pH regulating agent, 14-20 percent of lubricant and 65-75 percent of film forming agent, wherein the lubricant is a blend of oleic acid modified polyethenoxy ether and polyethylene glycol fatty ester; and the film forming agent is a blend of aqueous epoxy emulsion, small molecular epoxy emulsion, polyurethane emulsion, polyester or acrylic acid. The invention further discloses a preparation method of the sizing agent. Due to the adoption of the glass fiber sizing agent, the flexibility of glass fiber can be enhanced, glass fiber yarns are prevented from deforming easily after being stressed, and the roving cloth is soft, is prevented from deforming easily after pulling and has high elasticity.

Description

technical field [0001] The invention relates to a glass fiber sizing agent, which is a glass fiber sizing agent for grid cloth, and a preparation method thereof. Background technique [0002] Glass fiber grid cloth is a durable industrial material with stable structure, fire prevention, high temperature resistance, good heat dissipation and corrosion resistance. It has a wide range of uses and is mainly used for FRP products. The applicable process is hand lay-up or pultrusion. However, there are mainly two situations in the gingham cloth currently on the market: one is that the cloth surface is soft, the yarn is easy to slide, and it is easily deformed during cutting, which is not easy to operate. During hand laying or pultrusion, labor efficiency is affected due to deformation. and product quality; the other is to make the cloth surface harder, which can avoid the problem of deformation during subsequent use, but it cannot solve the problem of covering pattern during hand ...

AI Technical Summary

Problems solved by technology

However, there are mainly two situations in the gingham cloth currently on the market: one is that the cloth surface is soft, the yarn is easy to slide, and it is easily deformed during cutting, which is not easy to operate. During hand laying or pultrusion, labor efficiency is affected due to deformation. and product quality; the other is to make the cloth surface harder, which can avoid the problem of deformation in the subsequent use, but it cannot solve the problem of covering pattern in hand lay-up, and cannot meet the requirements in pultrusion. The problem of full soaking in a short time

Images