Study on effect of POSS on ablation properties of carbon/phenolic composite

doi:10.19936/j.cnki.2096-8000.20220528.013

Abstract

Abstract: Using OPS, PPSQ and OAPS as modifiers, three kinds of POSS modified phenol-formaldehyde resins (PF) were synthesized. The carbon residue rate of the modified resin was compared and analyzed by TG. The result showed that the OAPS modified PF had the highest carbon residue rate, which was 11% higher than PF. The effect of OAPS on the curing process of PF resin was studied by means of IR-Rheologic synchronous analysis, and it was found that OAPS promoted the substitution reaction between hydroxymethyl and active hydrogen on benzene ring. The ablation property of the OAPS/PF/carbon composite was studied by oxygen/ethyne ablation test. The mass ablation rate is 0.030 3 g/s, 34% lower than PF resin composites.

Key words: POSS, phenolic resin, char yield, ablation, performance, composites

CLC Number:

TB332

YAO Ya-lin, LIU Jing, WANG Pang-pang, TIAN Mou-feng. Study on effect of POSS on ablation properties of carbon/phenolic composite[J]. COMPOSITES SCIENCE AND ENGINEERING, 2022, 0(5): 92-97.

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