第 41 卷第 6 期Vol. 41 No. 6
2011 年 12 月Dec 2011

所属栏目:功能材料

顺丁橡胶/生物基酚醛树脂复合材料的研究
徐建双,任 倩,王 曦,苏胜培* (湖南师范大学 化学化工学院 资源精细化与先进材料重点实验室,湖南 长沙 410081)
摘 要:利用生物基材料木质素代替部分苯酚合成生物基酚醛树脂,并将其应用到顺丁橡胶中;采用同步法制备顺丁橡胶/生物基酚醛树脂复合材料(BR/LPF),并对其形态结构、机械性能及热稳定性等进行了研究。SEM及DSC结果表明,BR/LPF形成了互穿网络结构,两相出现相分离,相畴尺寸较大。机械性能实验结果表明,BR与LPF的比例对复合材料的拉伸强度、撕裂强度、硬度、拉断伸长率等影响较大,其中以BR/LPF(80/20)复合材料综合性能最佳;LPF的构成组分对机械性能也有较大影响。TGA实验表明,BR/LPF复合材料具有较好的热稳定性,加入LPF可提高复合材料的降解温度(T50%)。
关键词:互穿网络聚合物;生物基酚醛树脂;顺丁橡胶;橡胶复合材料
中图分类号:TQ333  文献标识码:A  文章编号:1009-9212(2011)06-0052-06
Study on 1,4-Polybutadiene Rubber/Bio-Phenolic Resin Interpenetrating Polymer Network
XU Jian-shuang,REN Qian,WANG Xi,SU Sheng-pei* (College of Chemistry and Chemical Engineering,Key Lab of Sustainable Resources Processing and Advanced Materials,Hunan Normal University,Changsha 410081,China)
Abstract:Bio-based phenol-formaldehyde resol resins were synthesized using lignin as the replacement of petroleum-based phenol. Interpenetrating polymer networks(IPNs) based on 1,4-polybutadiene rubber(BR) and lignin-phenol-formaldehyde (LPF) were prepared using simultaneous polymerization method(SINs). The morphology and compatibility,mechanical properties,thermal properties of IPNs were evaluated. Scanning electron microscopy(SEM) and differential scanning calorimetry (DSC) showed that BR/LPF IPNs prepared form immiscible compositions,and have phase separation and large phase domain size. The content and the composition of LPF have effect on the mechanical properties and the thermal oxidative aging properties of BR/LPF IPNs.
Key words:interpenetrating polymer network;bio-phenolic resin;1,4-polybutadiene rubber;rubber composites
基金项目:湖南师范大学潇湘学者启动资金资助课题(化050613)。
作者简介:徐建双(1986-),女,云南腾冲人,硕士研究生,研究方向:高分子复合材料。(E-mail:jianshuangxu@gmail.com)
联 系 人:苏胜培,教授,博士生导师,潇湘学者。(E-mail:sushengpei@gmail.com)
收稿日期: 2011-10-2