竹纤维/MUF复合材料的老化性能研究  

Study on Aging Properties of Bamboo Fiber/MUF Composite Materials

作　　者：周波[1] 费鹏[1] 蔡杰[1] 黄媛媛[1] 熊汉国[1] 

机构地区：[1]华中农业大学食品科技学院,湖北武汉430070

出　　处：《现代塑料加工应用》2012年第2期9-11,共3页Modern Plastics Processing and Applications

基　　金：国家自然科学基金资助项目(20976066)

摘　　要：以质量损失率、机械强度、羰基指数及乙烯基指数的变化作为综合指标,采用紫外光加速老化试验研究纳米SiO2和纳米TiO2对竹纤维(BF)/三聚氰胺-甲醛-尿素(MUF)复合材料紫外光老化性能的影响。结果表明,随着紫外光老化时间的延长,竹纤维/MUF复合材料的质量损失率、羰基指数和乙烯基指数增加,弯曲强度和冲击强度下降;纳米SiO2和纳米TiO2对竹纤维/MUF复合材料的紫外老化有一定的延缓作用。With mass loss rate, mechanical strength, carbonyl index and vinyl index changes as complete index, the effect of nano-SiO2 and nano-TiO2 on the ultraviolet aging properties of bamboo fiber（BF）/melamine-formaldehyde-urea（MUF） composite materials were researched by UV accelerated aging experiment. The results show that with extension of the ultraviolet aging time, BF/MUF composites have a greater degree of increase in the mass los,~ rate, carbonyl index and vinyl index, but bending strength and impact strength are decreased, and nano-TiO2 and nano-SiO2 have a role in delaying on ultraviolet aging of BF/MUF composites.

关 键 词：竹纤维 三聚氰胺-甲醛-尿素 紫外光老化 纳米二氧化硅 纳米二氧化钛 

分 类 号：TQ327[化学工程—合成树脂塑料工业]