玻璃钢/复合材料Issue(5)：18-22,33,6.
不饱和聚酯树脂/大麻纤维复合材料紫外老化性能的研究
UV AGEING OF UNSATURATED POLYESTER RESIN/HEMP FIBER COMPOSITES
雷文 1袁正扬 1任超 1余旺旺 1杨涛1
作者信息
摘要
Abstract
Unsaturated polyester resin/hemp fiber composites are formed by compression molding process, UV ageing test is carried out for both untreated and ammonia treated composites, the ageing cycles on the mechanical properties of the composites are studied, and FTIR technology is applied to characterize the structures of the compsores. The results show that, treating hemp fiber with ammonia can improve the tensile strengths and tensile modulli of the composites. The composites, either treated or untreated, get the greatest tensile strengths after one testing eycle, 10.8% and 19.1% increased from those of the unaged composites respectively; the flexural strengths, tensile modulli and flexural modulli of the untreated composites become the greatest ones when 2 periodically aged. As for the ammonia treated composites, their tensile moduli and flexural strengths decrease dramatically during the first aging period, then continue to decrease but much more slowly. On the contrary, their flexural moduUi and impact strengths are increased by 6.3% and 25.3% respectively from those of the unaged composites after 3 aging cycles. FTIR spectra shows that, the ammonia treated composites have stronger peaks than the untreated ones though the absorbence peaks of both the two composites become weaker after UV aging.关键词
不饱和聚酯树脂/大麻纤维/复合材料/紫外光老化Key words
unsaturated polyester resin/hemp fiber/composite/UV aging分类
通用工业技术引用本文复制引用
雷文,袁正扬,任超,余旺旺,杨涛..不饱和聚酯树脂/大麻纤维复合材料紫外老化性能的研究[J].玻璃钢/复合材料,2008,(5):18-22,33,6.
