PREPARATION AND PROPERTIES OF MODERATE TO LOW TEMPERATURE CURING CARBON FIBER PREPREG

Abstract

Abstract: The epoxy resin system were developed, which can be cured at moderate to low temperatures and suitable for hot-melt processing of perpergs. The formulation and curing system of the resin system were determined by analyzing the viscosity-temperature change of the resin system, the gel time-temperature relationship and the curing characteristics. The effects of temperature and pressure of the drum on fiber wettability were studied. The results show that the preperg T700 carbon fiber perperg exhibits good processibility and mechanical properties. Moreover, the longitudinal tensile, longitudinal compressive, bending strength, short beam shear strength of the T700 carbon fiber perperg was 2588 MPa, 1229 MPa, 1749 MPa, and 83 MPa, respectively.

Key words: composite, perperg, epoxy resin, moderate to low temperatures curing

CLC Number:

TB332

LIAO Guo-feng, YANG Xiao-bing, LV Piao-piao, YE Guo-fang. PREPARATION AND PROPERTIES OF MODERATE TO LOW TEMPERATURE CURING CARBON FIBER PREPREG[J]. COMPOSITES SCIENCE AND ENGINEERING, 2020, 0(12): 59-63.

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