Water dispersable glass fiber sizing material

Abstract

The invention discloses a water dispersing sizing material for chopped glass fiber comprising, mixture dispersing agent including two nitrogen-containing organic compounds, protective agent formed by one or more polyhydroxy or carbonyl alcohols, esters and acyl polymers, humectant, lubricating agent, common silicane coupling agent in glass fiber industry including multicomponent alcohol mixture, and deionized water or distilled water for the rest. The sizing material can be applied to the dispersion of various alkali-free, medium alkali glass fiber in aqueous medium.

Description

technical field [0001] The invention relates to a water-dispersible glass fiber surface treatment agent. Background technique [0002] Disperse glass fiber in water or water alcohol or ester solution medium, and then be used to produce glass fiber insulation packaging materials, glass fiber mat, especially glass fiber mixed with polymer resin fiber to make high-strength glass such as glass fiber reinforced resin Fiber composite material is an important field of modern glass fiber application, and has a broad market and development prospects. [0003] Most of the currently commonly used water-dispersible glass fiber sizings use amines or alcohols as a single compound or a mixture of non-ionic and cationic surfactants as a dispersant such as US patents. The patent numbers are US.717278, US.422771, US .834990. Its shortcomings are: it is difficult to adjust according to the actual situation of industrial production, and it cannot meet the actual needs of dispersing various ty...

AI Technical Summary

Problems solved by technology

Its shortcomings are: it is difficult to adjust according to the actual situation of industrial production, and it cannot meet the actual needs of dispersing various types and chemical compositions of glass fibers or different dispersion media of glass fibers

[0004] In the past, most of the wetting agents in the field of glass fiber used urea as a humectant, which has poor thermal stability and is prone to odor at high temperatures, which seriously affects the use of glass fiber and is likely to cause environmental pollution.