STUDY ON THE EFFECTS OF TOUGHNESS MODIFICATION ON THE PROPERTIES OF GLASS FABRIC REINFORCED PHENOLIC COMPOSITES

Abstract

Abstract: Three kinds of PVB (polyvinyl butyral) with different molecular weight were selected to improve the toughness of glass fabric reinforced phenolic resin composites. The climbing drum peel strength, 60 second vertical burning test, smoke density and the heat release rate of toughened composites were measured. By this way, the effect of molecular weight and additive content of the toughener on the toughness and fireproof properties of composites was estimated. It was found that higher molecular weight resulted in higher peel strength flowing with the degression of fireproof properties. The interlaminated strength of composites was obviously enhanced by three kinds of PVB. The increase of 29%, 81% and 71% was obtained by additive of lower, moderate and higher molecular weight PVB, respectively.

Key words: toughness, fireproof, phenolic resin, composite

CLC Number:

TB332

LI Ya-feng, HONG Xu-hui. STUDY ON THE EFFECTS OF TOUGHNESS MODIFICATION ON THE PROPERTIES OF GLASS FABRIC REINFORCED PHENOLIC COMPOSITES[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(11): 71-74.

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