Glass fiber reinforced impregnating agent

Abstract

The invention discloses a glass fiber reinforced impregnating agent, which is prepared from the following components in parts by weight: 20 to 30 parts of vinyl aqueous epoxy resin, 20 to 30 parts of epoxy dicyclopentadiene epoxy resin, 10 to 20 parts of acrylate emulsion, 5 to 8 parts of linseed oil, 3 to 5 parts of coupling agent, 0.5 to 2 parts of lubricant, 0.5 to 1 part of collecting agent, 0.5 to 1 part of emulsifier, 0.5 to 2 parts of polyvinylpyrrolidone, 0 to 0.5 part of polyvinyl alcohol, 0 to 0.5 part of antistatic agent, 0.5 to 1 part of antifoaming agent, and 300 to 500 parts of water. Due to the added polyvinylpyrrolidone and polyvinyl alcohol, the adhesive force of the impregnating agent is strengthened; the viscosity is also improved; the breaking of fibers is prevented, the plasticity and stiffness are enhanced, and the generated broken filaments are reduced. Three film forming agents are adopted; the impregnating agent has an excellent high temperature resistant performance and electric properties, a high adhesive force, and a good film forming performance and protective property; thus the impregnating agent can well protect and collect glass fibers during the process of high speed ejection and rolling, the production efficiency is improved, and the mechanical performance of glass fibers is enhanced.

Description

technical field [0001] The invention relates to glass fiber production technology, in particular to a glass fiber reinforced sizing 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 broad market prospects and development prospects. [0003] Most of the currently commonly used water-dispersible glass fiber reinforced sizings use a single compound of amines or alcohols or a mixture of nonionic or cationic surfactants as dispersants. 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 glass fibers of different typ...

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 glass fibers of different types and chemical compositions or different dispersion media of glass fibers

[0004] In the past, most of the sizing 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, seriously affecting the use of glass fiber and easily causing environmental pollution. The application number is CN201010252613.6. A fiberglass lubricant, a dispersant consisting of two different nitrogen-containing surfactants, a protective agent consisting of one or more polyhydric or carbonyl alcohols, esters, acyl polymers, a polyol mixture Moisturizer, lubricant, zirconium coupling agent commonly used in the glass fiber industry, and the rest is distilled water or deionized water. This wetting agent is suitable for the dispersion of various alkali-free and medium-alkali glass fibers in water media. The glass fiber has good dispersion performance, good thermal stability and no pollution, but this kind of sizing agent has poor wettability, poor reinforcement effect, and high production cost