Glass fiber impregnating compound for polyurethane pultrusion composite material and preparation method of glass fiber impregnating compound

A composite material and glass fiber technology, which is applied in the field of glass fiber sizing for polyurethane pultrusion composite materials and its preparation, can solve the problems of large hairiness and poor stability, and achieve low hairiness, high compatibility, biophase good capacitive effect

Active Publication Date: 2020-02-14
NEIJIANG HUAYUAN ELECTRONICS MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a glass fiber sizing for polyurethane pultrusion composite materials and its preparation method to solve the problems of poor stability and large amount of hairiness in the existing glass fiber sizing

Method used

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  • Glass fiber impregnating compound for polyurethane pultrusion composite material and preparation method of glass fiber impregnating compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The glass fiber sizing agent for polyurethane pultrusion composites in this embodiment includes: by percentage, silane coupling agent A 0.2wt%, silane coupling agent B 0.4wt%, film forming agent 6.2wt%, lubricant A0. 3wt%, lubricant B 0.2wt%, auxiliary agent 0.2wt%, pH regulator 0.2wt%, and the rest is water;

[0029] Wherein, silane coupling agent A is 3-aminopropyltriethoxysilane; silane coupling agent B is 3-(2-aminoethylamino)propyltrimethoxysilane; film-forming agent is modified epoxy Emulsion; lubricant A is polyethylene glycol; lubricant B is octadecyltrimethylammonium chloride; pH regulator is glacial acetic acid; auxiliary agent includes starch nanocrystal modified epoxy resin.

[0030] Wherein, the preparation method of modified epoxy emulsion comprises the following steps:

[0031] (1) Chitosan is added to water, and citric acid is added, after being heated to 30 ℃, the chitosan aqueous solution is obtained after stirring until completely dissolved; wherein,...

Embodiment 2

[0042] The glass fiber sizing agent for polyurethane pultrusion composites in this embodiment includes: by percentage, silane coupling agent A 0.3wt%, silane coupling agent B 0.5wt%, film forming agent 6.5wt%, lubricant A0. 4wt%, lubricant B 0.4wt%, auxiliary agent 0.3wt%, pH regulator 0.25wt%, and the rest is water;

[0043] Wherein, silane coupling agent A is 3-aminopropyltriethoxysilane; silane coupling agent B is 3-(2-aminoethylamino)propyltrimethoxysilane; film-forming agent is modified epoxy Emulsion; lubricant A is polyethylene glycol; lubricant B is octadecyltrimethylammonium chloride; pH regulator is glacial acetic acid; auxiliary agent includes starch nanocrystal modified epoxy resin.

[0044] Wherein, the preparation method of modified epoxy emulsion comprises the following steps:

[0045] (1) Chitosan is added to water, and citric acid is added, after being heated to 40°C, the chitosan aqueous solution is obtained after stirring until completely dissolved; wherein, ...

Embodiment 3

[0056] The glass fiber sizing agent for polyurethane pultrusion composites in this embodiment includes: by percentage, silane coupling agent A 0.4wt%, silane coupling agent B 0.6wt%, film forming agent 7.0wt%, lubricant A0. 5wt%, lubricant B 0.5wt%, auxiliary agent 0.4wt%, pH regulator 0.3wt%, and the rest is water;

[0057] Wherein, silane coupling agent A is 3-aminopropyltriethoxysilane; silane coupling agent B is 3-(2-aminoethylamino)propyltrimethoxysilane; film-forming agent is modified epoxy Emulsion; lubricant A is polyethylene glycol; lubricant B is octadecyltrimethylammonium chloride; pH regulator is glacial acetic acid; auxiliary agent includes starch nanocrystal modified epoxy resin.

[0058] Wherein, the preparation method of modified epoxy emulsion comprises the following steps:

[0059] (1) Chitosan is added to water, and citric acid is added, after being heated to 40 ℃, after stirring until fully dissolved, an aqueous solution of chitosan is obtained; wherein, t...

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Abstract

The invention discloses a glass fiber impregnating compound for a polyurethane pultrusion composite material and belongs to the technical field of polyurethane pultrusion processes. The glass fiber impregnating compound comprises the following components in percentage: 0.2-0.6wt% of a silane coupling agent A, 0.4-0.8wt% of a silane coupling agent B, 6.2-8.2wt% of a film-forming agent, 0.3-0.7wt% of a lubricant A, 0.2-0.8wt% of a lubricant B, 0.2-0.6wt% of an auxiliary agent, 0.2-0.4wt% of a pH regulator and the balance of water. The glass fiber impregnating compound disclosed by the inventionis high in compatibility with a polyurethane pultrusion composite material, can enable glass fiber yarn to be good in bundling property and small in hairiness amount, and can improve mechanical properties of a glass fiber reinforced polyurethane composite material.

Description

technical field [0001] The invention relates to the technical field of polyurethane pultrusion technology, in particular to a glass fiber sizing agent for polyurethane pultrusion composite materials and a preparation method thereof. Background technique [0002] In recent years, polyurethane resin-reinforced composite materials made by polyurethane pultrusion molding process stand out for their advantages such as good toughness, fast curing, and no styrene smoke. In the polyurethane pultrusion process, reinforced glass fibers are used to obtain high-strength, high-modulus, lightweight polymer composites. At the same time, due to the excellent impact strength, tensile strength and interlayer shear strength of polyurethane itself, the products can be made thinner and lighter. Polyurethane pultrusion products include profiles, rods and plates, such as doors and windows, ladder poles, tool handles, utility pole crossarms, poles, hockey sticks, dock piles, container plates, etc....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/465
CPCC03C25/465
Inventor 刘钢刘术明李尚勇孟凡荣何文黄令奇
Owner NEIJIANG HUAYUAN ELECTRONICS MATERIALS
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