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Glass fiber, surface treatment method of glass fiber, plastic and shell

A glass fiber and surface treatment technology, applied in the field of materials, can solve the problem of weak bonding ability between glass fiber and ABS plastic, and achieve the effect of reducing the linear expansion coefficient and improving the bonding ability

Inactive Publication Date: 2015-01-28
GUANGDONG HISENSE ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The inventors found that when conventional glass fibers are used to enhance and modify ABS plastics, the glass fibers are directly mixed with other components of ABS plastics. Since the surface differences between glass fibers and ABS are relatively large, the bonding ability of glass fibers and ABS plastics will be reduced. Not strong

Method used

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  • Glass fiber, surface treatment method of glass fiber, plastic and shell
  • Glass fiber, surface treatment method of glass fiber, plastic and shell
  • Glass fiber, surface treatment method of glass fiber, plastic and shell

Examples

Experimental program
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Effect test

Embodiment 1

[0045] The glass fiber to be treated (flatness 1.5, length 3mm) is corroded in an corrosive solution for 30 seconds, wherein the corrosive solution includes a corrosion inhibitor with a mass fraction of 0.05%, and a mass fraction of 99.95% An acidic aqueous solution, the acidic aqueous solution of this embodiment is composed of the following components: 10 parts by weight of hydrofluoric acid with a concentration of 2% to 3% and 1 part by weight of hydrochloric acid with a concentration of 0.5% to 1%;

[0046] The corroded glass fiber is soaked in a coupling agent, and the coupling agent in this embodiment is vinyltriethoxysilane;

[0047] The glass fibers after soaking treatment are dried, and heating can be used to remove water on the surface of the glass fibers (subsequent examples are all dried by heating), to obtain surface-treated glass fibers I.

Embodiment 2

[0049] The glass fiber to be treated (flatness 3, length 5mm) is corroded in the corrosive solution for 35 seconds, wherein the corrosive solution includes a corrosion inhibitor with a mass fraction of 0.1%, and a mass fraction of 99% Acidic aqueous solution, the acidic aqueous solution of this embodiment is made up of following composition: the concentration of 10 parts by weight is the hydrofluoric acid of 2%~3% and the concentration of 2 parts by weight is the nitric acid of 0.5%~1%;

[0050] The corroded glass fiber is soaked in a coupling agent, and the coupling agent in this embodiment is γ-aminopropyltriethoxysilane (KH550);

[0051] Drying the soaked glass fibers to obtain surface-treated glass fibers II.

Embodiment 3

[0053] The glass fiber to be treated (flatness 4, length 7mm) is corroded in the corrosive solution for 30 seconds, wherein the corrosive solution includes a corrosion inhibitor with a mass fraction of 0.05%, and a mass fraction of 99.5% An acidic aqueous solution, the acidic aqueous solution of this embodiment is composed of the following components: 10 parts by weight of hydrofluoric acid with a concentration of 2% to 3% and 1 part by weight of hydrochloric acid with a concentration of 0.5% to 1%;

[0054] The corroded glass fiber is soaked in a coupling agent, and the coupling agent in this embodiment is vinyltriethoxysilane;

[0055] Drying the impregnated glass fibers to obtain surface-treated glass fibers III.

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Abstract

The invention relates to the technical field of materials, and particularly relates to a glass fiber, a surface treatment method of the glass fiber, a plastic and a shell, which are used for improving the capacity, of combining with ABS, of the glass fiber. The surface treatment method of the glass fiber comprises the following steps: putting the glass fiber to be treated in corrosive liquid to carry out corrosive treatment for 30-40 seconds, wherein the corrosive liquid comprises a corrosion inhibitor and an acidic water solution with mass fraction of 0.05-0.5% and 99.5-99.95%; putting the corroded glass fiber in a coupling agent to carry out infiltration; and drying the infiltrated glass fiber. Through the surface treatment, the capacity, of combining with ABS, of the glass fiber is relatively high; being added into ABS plastics, the glass fiber is capable of effectively enhancing the linear expansion coefficient of the ABS; and when the glass fiber is flat glass fiber, the shock resistance of the ABS plastics can be improved.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a glass fiber and its surface treatment method, a plastic and a shell. Background technique [0002] ABS (Acrylonitrile Butadiene Styrene copolymers, referred to as ABS, the Chinese name is acrylonitrile-butadiene-styrene copolymer) plastic, because of its good comprehensive physical properties, good chemical resistance, easy molding and processing, and cheap prices, And it can realize the high-gloss effect, so it is widely used in the casing of electronic equipment, especially the front casing of LCD TV. [0003] The linear structure of butadiene in traditional ABS plastic lacks rigid groups, so its linear expansion coefficient is high. Under the same temperature difference, the higher the linear expansion coefficient of ABS plastic, the greater the dimensional change of its parts. Therefore, the shell obtained by molding the ABS plastic with a relatively high linear expansio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/68C03C25/40C08L55/02C08K13/06C08K9/02C08K9/06C08K7/14
CPCC03C25/68C03C25/40C08K7/14C08K9/02C08K9/06C08K13/06C08K2201/004C08L55/02
Inventor 李洋洋何洋
Owner GUANGDONG HISENSE ELECTRONICS CO LTD
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