Glass fiber soakage agent and preparation method and application thereof

Abstract

The invention provides a glass fiber soakage agent. The glass fiber soakage agent is suitable for an extrusion and injection moulding process. The glass fiber soakage agent is prepared from, by mass,0.10-3.00% of a silane coupling agent, 2.00-25.00% of a film forming agent, 0-1.00% of a plasticizer, 0.01-2.00% of a lubricating agent, 0.01-2.00% of a pH regulating agent and 67.00-97.88% of water;the film forming agent is a mixture of a first film forming agent and a second film forming agent, and the mass ratio of the first film forming agent to the second film forming agent is 10:1-1:8. Produced glass fiber twistless roving coated with the soakage agent is suitable for production of glass fiber reinforcement thermoplastic plastic.

Description

technical field [0001] The invention relates to a glass fiber sizing agent and its preparation method and application, in particular to a glass fiber sizing agent suitable for extrusion and injection molding processes and its preparation method and application. Background technique [0002] Various thermoplastic resin composite materials reinforced with glass fibers are widely used in transportation, electrical equipment, construction products and other industries. Extrusion and injection molding are a process in which glass fiber roving or chopped strands and thermoplastic resin are mixed and extruded through an extruder and cut into particles, and then these plastic particles are injection-molded to obtain final products. Extrusion and injection molding processes are a major processing technology for thermoplastic composites. [0003] At present, although the existing glass fiber sizing for extrusion and injection molding processes in the industry meets the needs of glass...

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Problems solved by technology

[0003] At present, although the existing glass fiber sizing for extrusion and injection molding processes in the industry meets the needs of glass fiber production to a certain extent, there is a problem that the compatibility between glass fiber and thermoplastic matrix resin is not good. Problems such as uneven dispersion during mixing

This defect is likely to cause problems such as glass fiber exposure on the surface of the produced composite material, large fluctuations in mechanical properties, etc., which cannot meet the needs of high-end customers

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