增韧改性对玻纤织物增强酚醛复合材料性能影响研究

复合材料科学与工程 ›› 2015, Vol. 0 ›› Issue (11): 71-74.

增韧改性对玻纤织物增强酚醛复合材料性能影响研究

李亚锋, 洪旭辉

中航复合材料有限责任公司技术发展部,北京 101300

收稿日期:2015-03-24 出版日期:2015-11-28 发布日期:2021-09-14
作者简介:李亚锋(1979-),女,硕士,工程师,主要从事功能复合材料方面的研究工作,liyf_5@163.com。

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

LI Ya-feng, HONG Xu-hui

Composites Science and Technology Division, AVIC Composite Limited Company, Beijing 101300, China

Received:2015-03-24 Online:2015-11-28 Published:2021-09-14

摘要/Abstract

摘要： 选择了3种不同分子量的聚乙烯醇缩丁醛作为增韧剂对酚醛树脂进行增韧改性,通过夹层结构滚筒剥离强度,材料的60s垂直燃烧、烟密度、热释放速率等性能测试研究不同分子量和添加量的增韧剂对材料韧性和阻燃性能的影响。研究发现高分子量增韧剂对材料滚筒剥离强度的改善效果最明显,5%的添加量即能达到11%的低分子增韧剂的增韧效果;除增韧剂的添加量外,增韧剂分子量也对材料的阻燃性能有明显影响。最后通过复合材料的力学性能测试,发现经低、中、高3种分子量的增韧剂增韧的复合材料的层间剪切强度均得到了明显改善,分别提高了29%、81%和71%。

关键词: 韧性, 阻燃, 酚醛树脂, 复合材料

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

中图分类号:

TB332

李亚锋, 洪旭辉. 增韧改性对玻纤织物增强酚醛复合材料性能影响研究[J]. 复合材料科学与工程, 2015, 0(11): 71-74.

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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