高温水浸对T800/环氧树脂基复合材料性能的影响

doi:10.13229/j.cnki.jdxbgxb.20211021

Abstract

Abstract:

The hygroscopic properties and properties of T800 carbon fiber/epoxy matrix composites were analyzed under water immersion conditions at different temperatures. The mass variation， moisture absorption rate variation， IR spectrum， surface morphology before and after water immersion， glass transition temperature， compressive strength and interlayer shear strength were analyzed. The results show that the temperature is higher， the rate of moisture absorption is faster， and the degree of Tg（glass transition temperature） reduction is larger. Cracks occur on the specimen surface and the interface between the fiber and the resin matrix is damaged. After water immersion， the inter-laminar shear strength and compressive strength of the sample are significantly reduced.

Key words: T800 carbon fiber-epoxy composite, immersion environment, moisture absorption rate, mechanical property

CLC Number:

TB332

Liang XU,Yu-bo BIAN,Song ZHOU,Jing-hou XIAO. Effect of high temperature immersion on properties of T800 carbon fiber/epoxy resin composites[J].Journal of Jilin University(Engineering and Technology Edition), 2023, 53(7): 1943-1950.

Figures/Tables 12

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试验编号	未水浸	70 ℃蒸馏水	90 ℃蒸馏水	70 ℃ 3.5%NaCl溶液	90 ℃ 3.5%NaCl溶液	破坏模式
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试验编号	破坏载荷/N					破坏模式
试验编号	未水浸	70 ℃蒸馏水	90 ℃蒸馏水	70 ℃ 3.5%NaCl溶液	90 ℃ 3.5%NaCl溶液	破坏模式
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Effect of high temperature immersion on properties of T800 carbon fiber/epoxy resin composites

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