Effect of Multiple Curing at High Temperature on Mechanical Properties of Composites

CHENG Yan-na, ZHANG Meng-yu, LIU Xun-xin, YUAN Xiao-sa, LIN Yu-chen, YUAN Zhen-yi

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Plastics Science and Technology ›› 2024, Vol. 52 ›› Issue (07) : 75-78. DOI: 10.15925/j.cnki.issn1005-3360.2024.07.016
Processing and Application

Effect of Multiple Curing at High Temperature on Mechanical Properties of Composites

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Abstract

The laminate was manufactured with T800 grade high toughness carbon cloth and carbon ribbon prepreg, T800 grade glass fiber prepreg, aramidon and quartz hybrid prepreg. The influence of high temperature and high pressure multiple curing on the mechanical properties of laminates was investigated. After five times of high temperature and high pressure curing, the laminate pore defects, bending strength and shear strength were tested. The results show that the internal quality of four different prepreg laminates is qualified. With the increase of curing times, the bending strength of T800 grade high toughness carbon cloth laminate decreases most obviously, and the shear strength of T800 grade glass fiber prepreg laminate decreases most obviously. However, the bending strength and shear strength of the four kinds of prepreg laminates decrease by less than 10%. The minimum shear strength of aramid and quartz hybrid prepreg after curing for five times is 1.64% lower than the theoretical index, and the shear strength of other materials is higher than the property requirements of each laminate.

Key words

Carbon fiber / Glass fiber / Multiple curing / Pore defects / Bending strength / Shear strength

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CHENG Yan-na , ZHANG Meng-yu , LIU Xun-xin , et al . Effect of Multiple Curing at High Temperature on Mechanical Properties of Composites. Plastics Science and Technology. 2024, 52(07): 75-78 https://doi.org/10.15925/j.cnki.issn1005-3360.2024.07.016

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