微波脱硫废胶粉/天然橡胶共混弹性体的制备与性能  

Preparation and performance of microwave modified waste rubber powder/natural rubber blending elastomers

作　　者：孟彩云[1] 鲁萍[1,2] 毛利民[1] 韩慧[1] 严长浩[1,2] 张明[1,2] 

机构地区：[1]扬州大学化学化工学院,江苏扬州225002 [2]扬州大学化学化工学院江苏省环境材料与环境工程重点实验室,江苏扬州225002

出　　处：《合成橡胶工业》2010年第5期366-369,共4页China Synthetic Rubber Industry

基　　金：2006年度江苏省高校自然科学重大基础研究资助项目(06KJA15011)

摘　　要：采用微波脱硫法对废胶粉(WRP)进行表面活化改性,初步探索了WRP脱硫的最佳微波条件;将在最佳微波条件下脱硫的废胶粉(DRP)与天然橡胶(NR)制成共混弹性体,考察了共混弹性体的力学性能、压缩永久变形、溶胀率和交联密度。结果表明,WRP脱硫的最佳微波条件为功率750W、辐射时间60s;DRP/NR共混弹性体的力学性能比WRP/NR共混弹性体有所提高;而相同胶粉用量下,DRP/NR共混弹性体的溶胀率均比WRP/NR共混弹性体低,而交联密度大。Waste rubber powder （WRP） was de- vulcanized by the microwave method for surface modification. The best microwave conditions were explored primarily. The devuleanized rubber powder （ DRP）/natural rubber （NR） blending elastomers were prepared, in which the DRP was obtained via devulcanized of WRP at the best microwave condi- tions. The mechanical properties, compression set, swelling ratio, crosslinking density of the DRP/NR blending elastomer were investigated. The results showed that the best microwave conditions were pow-er 750 W and radiation time 60 s. The mechanical properties of DRP/NR blending elastomers were im- proved compared to WRP/NR blending elastomers. The swelling ratio of DRP/NR was larger; and the crosslinking density was lower than those of WRP/ NR blending elastomers.

关 键 词：废胶粉 天然橡胶 微波脱硫 共混弹性体 力学性能 压缩永久变形 交联密度 

分 类 号：TQ334[化学工程—橡胶工业]