摘要
选用了6种光稳定剂,通过分析老化前后添加不同光稳定剂的木塑复合材料性能变化,考察了常用光稳定剂品种对于木塑复合材料抗老化性能的影响。结果表明:光稳定剂能够有效增加WPC的抗老化能力,减少老化过程导致的力学性能下降;光稳定剂品种对于老化过程WPC静曲强度下降的影响有明显差异,位阻胺类与二苯甲酮类优于苯并三唑类;光稳定剂品种对于老化过程WPC吸水率的增加有明显差异,位阻胺类最优,二苯甲酮类次之,苯并三唑类最差;光稳定剂品种对于老化前后WPC色差的影响没有明显差别。
The effect of commonly used photo stabilizers on ageing resistance of wood plastic composites were investigated by analyzing the properties of WPC before and after accelerated weathering with added 6 different photo stabilizers. The results showed that photo stabilizers could effectively increase the ageing resistance ability of WPC, and reduce the mechanical properties during the aging process. The effect of different photo stabilizers on the de-crease of WPC modulus of rupture have obvious difference during the aging process, hindered amine and benzophe-none have greater effect than azimino-benzene. The effect of different photo stabilizers on the increase of water ab-sorption rate of WPC also have significant difference during the aging process, the best was hindered amine, fol-lowed by benzophenon, and the worst was azimino-benzene. The effect of different photo stabilizers on the change of chromatic aberration showed no obvious differences.
出处
《西南林业大学学报（自然科学）》
CAS
北大核心
2016年第6期154-157,177,共5页
Journal of Southwest Forestry University：Natural Sciences
基金
云南省教育厅重点项目(2013Z085)资助
校企合作项目(31261801)资助
关键词
光稳定剂
光氧化
老化
静曲强度
吸水率
色差
photo stabilizers
photo oxidation
accelerated weathering
MOR
water absorption rate
chro-matic aberration
