木质素酚醛树脂/丁苯橡胶复合材料的研究  

Study on Lignin-Phenol-Formaldehyde/SBR Composites

作　　者：徐建双[1] 谭雅婷[1] 刘滔[1] 王曦[1] 苏胜培[1] 

机构地区：[1]湖南师范大学资源精细化与先进材料重点实验室,湖南长沙410081

出　　处：《橡胶工业》2013年第6期331-337,共7页China Rubber Industry

基　　金：湖南师范大学潇湘学者启动资金资助项目(化050613)

摘　　要：以木质素部分替代苯酚合成木质素酚醛树脂(LPF),制备LPF/丁苯橡胶(SBR)复合材料,并对其形态结构、物理性能和热稳定性进行研究。结果表明:LPF(木质素/苯酚用量比30/70)/SBR复合材料出现相分离,当LPF用量大于25份时,LPF与SBR相互穿插,形成互穿网络结构。加入LPF可以改善复合材料的物理性能,当LPF中木质素/苯酚用量比为30/70、LPF用量为25份时,LPF/SBR复合材料的综合性能最佳。与SBR硫化胶相比,LPF/SBR复合材料质量损失率为5%时的温度降低,质量损失率为50%时的温度升高,质量保持率增大。In this paper,the lignin-phenol-formaldehyde （LPF） was synthesized and the LPF/SBR composites were prepared. The morphology, physical properties and thermal stability of LPF/SBR composites were investigated. The experimental results showed the phase separated structure in the LPF/SBR composites. When the addition level of LPF（lignin/phenol blend ratio at 30/70） was more than 25 phr,SBR and LPF were penetrated with each other, and an interpenetrating network structure was formed. The addition of LPF improved the physical properties of composites,and when the lignin/ phenol blend ratio was 30/70, and addition level of LPF was 25 phr, the comprehensive properties of composite were the best. The thermal stability of the composites was evaluated by thermogravimetric analysis. Compared with SBR vulcanizate, the temperature with 5% mass loss rate of the composites decreased,the temperature with 50% mass loss rate of the composites increased,and the final mass residue increased.

关 键 词：木质素酚醛树脂 丁苯橡胶 复合材料 物理性能 热稳定性 

分 类 号：TQ330.1[化学工程—橡胶工业] TQ330.383