Method for preparing alkali-resistant glass fibre jet yarn impregnating compound

Abstract

The invention relates to a method for preparing an alkali-resistant glass fibre jet yarn impregnating compound. The method comprises the following steps: adding 10-20 times deionized water with temperature of 80-90 DEG C to imidazoline cation lubricant and stirring to obtain uniform and transparent liquid; adding 5-10 times deionized water with temperature of 30-50 DEG C to an antistatic agent SN and stirring to obtain uniform and transparent liquid; adding 10-20 times deionized water with temperature of 50-70 DEG C to one or mixture of lithium nitrate, lithium chloride and ammonium chloride and stirring to obtain uniform and transparent liquid; respectively adding 1-3 times deionized water to a polyacrylate film-forming agent, a water-soluble epoxy film-forming agent, polyvinyl acetate and an acrylate copolymer film-forming agent; and mixing all matters obtained in the previous steps, then adding the rest of deionized water, and stirring for 30-40 minutes at the stirring speed of 50-60rpm.

Description

technical field [0001] The invention relates to a preparation method of a glass fiber surface treatment agent containing organic materials. Background technique [0002] Alkali-resistant glass fiber jet yarn is mainly used to strengthen cement products (referred to as GRC). The processing technology is that glass balls containing ZrO2 (13%-16%) flow out from the orifice at the bottom of the crucible after being melted in the crucible. After drawing and coating with sizing agent, it is rolled into a raw silk tube, then dried at 120-160 ° C, unwound and plied into continuous fibers. The fiber is chopped and dispersed on the abrasive tool by spray gun under certain air pressure. Therefore, when producing continuous fibers, it is necessary to use a sizing agent with excellent performance to ensure the bundling, stiffness, and lubricity of the glass fibers in unwinding and plying, and at the same time ensure the chopping and dispersibility of the fibers in the jetting. [0003]...

AI Technical Summary

Problems solved by technology

[0010] (1) The sizing protective layer coated on the surface of the glass fiber has poor textile resistance and is prone to hairiness when unwinding and plying;

[0011] (2) The sizing agent coated on the surface of the glass fiber has poor clustering property, the bonding between the fibers is not strong, and it is easy to open the fibers when spraying under pressure, which affects the uniformity of dispersion;

[0012] (3) The stiffness is low, which affects the short-cut dispersion of fibers