THERMO-CHEMICAL BEHAVIOR OF PHENOLIC RESIN FOR RTM AND ITS COMPOSITES

Abstract

Abstract: Thermal chemical behavior of a kind of phenolic resin for RTM process was studied, such as DSC, TG, Tg and viscosity-temperature characteristics. Based on the analysis of the process adaptability, carbon fiber needling preform reinforced the phenolic resin composites was made by RTM. Then the mechanical, thermal physical and ablative properties of the composites were tested and evaluated. Experimental results show that the interlayer shear strength of the composites is 32.4MPa, heat capacity of 200℃ is 1530J/(kg·K), linear expansion coefficient of 25~200℃ is -0.234×10^-6/℃, linear ablation rate is 0.069mm/s, quality ablation rate is 0.0926g/s. It shows good characteristics of thermal protection.

Key words: RTM process, phenolic resin, composite, thermal property, ablative property

CLC Number:

LI Ting, LIU Jian-jun, YANG Xue-jun, ZHAO Wen-bin. THERMO-CHEMICAL BEHAVIOR OF PHENOLIC RESIN FOR RTM AND ITS COMPOSITES[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(5): 89-92.

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