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Method for representing resin on wetting performance of glass fiber

A technology of glass fiber and resin, applied in the field of wettability testing, to achieve the effects of convenient development and screening, environmental friendliness, and simple testing equipment

Inactive Publication Date: 2019-02-05
JUSHI GRP CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention aims to solve the problems described above

Method used

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  • Method for representing resin on wetting performance of glass fiber
  • Method for representing resin on wetting performance of glass fiber
  • Method for representing resin on wetting performance of glass fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Select the direct yarn sizing agent as the solid phase and the epoxy resin solution as the liquid phase to test the contact angle, which specifically includes the following steps:

[0076] 1S: Use a wet film applicator to coat the direct yarn sizing agent on the solid sheet of the contact angle measuring instrument. The solid sheet is a smooth stainless steel sheet with a length of 100mm, a width of 25mm, and a thickness of 2mm; the direct yarn sizing agent The solid content is 10%; the solid sheet coated with the direct yarn sizing agent is sent into a drying oven for drying to obtain the sizing agent sheet;

[0077] The temperature settings in the drying oven are specifically:

[0078] 1) Raise the temperature from room temperature to 100°C and keep it for 180 minutes; the heating time is 360 minutes;

[0079] 2) Continue to heat up to 122°C and keep for 180 minutes; the heating time is 180 minutes;

[0080] 2S: Select the epoxy resin with the brand name 2500-1A pro...

Embodiment 2

[0086] Select the spun yarn sizing agent as the solid phase and the unsaturated resin solution as the liquid phase to test the contact angle, which specifically includes the following steps:

[0087] 1S: Use a wet film applicator to coat the ply yarn sizing agent on the solid sheet of the contact angle measuring instrument. The solid sheet is a smooth stainless steel sheet with a length of 60mm, a width of 20mm, and a thickness of 3mm; the solid content of the sizing agent 8%; the solid sheet coated with the sizing agent for the plied yarn is sent into a drying oven for drying to obtain a sheet of the sizing agent;

[0088] The temperature settings in the drying oven are specifically:

[0089] 1) Raise the temperature from room temperature to 100°C and keep it for 120 minutes; the heating time is 360°C;

[0090] 2) Continue to raise the temperature to 132°C and keep it for 180 minutes; the heating time is 180 minutes.

[0091] 2S: Select the unsaturated resin with the brand ...

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Abstract

The invention discloses a method for representing resin on a wetting performance of a glass fiber. The method comprises the step of performing a contact angle test by taking a dried glass fiber impregnating agent as a solid phase and a resin solution as a liquid phase and by use of a contact angle measurement instrument so as to represent the wetting performance between the resin and the glass fiber. The method is simple and convenient to operate, experiment data are processed simply and directly; a test can be performed by only needing a small amount of glass fiber impregnating agents; the test device is simple, and the test cost is low; the research and development costs of the glass fiber can be effectively reduced; and the progress for development and optimization of a glass fiber impregnating agent formula is greatly accelerated.

Description

technical field [0001] The invention relates to a wettability test method, in particular to a method for characterizing the wettability of resin to glass fiber. Background technique [0002] In the molding process of composite materials, the wettability between resin and fiber plays an important role; the key to determine the wettability between resin and fiber is the sizing agent on the surface of glass fiber. The sizing agent coated on the surface of the glass fiber can ensure the smoothness of the glass fiber drawing during the glass fiber forming process, lubricate and protect the glass strands, bond and bundle, and endow the glass fiber with a certain degree of stiffness. Dispersion, etc.; more importantly, to improve the processing technology of glass fiber and matrix resin, and greatly improve the interface compatibility between the two, to maximize the physical and mechanical properties of the material. [0003] For a long time, people have been using contact angle ...

Claims

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Application Information

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IPC IPC(8): G01N13/02
CPCG01N13/02G01N2013/0208
Inventor 张志坚崔丽荣章建忠崔峰波冉文华袁向静张萍蒋斌兵
Owner JUSHI GRP CO
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