天然橡胶/废胶粉共混胶料的制备  

Study on preparation of NR/WRP blends

作　　者：丁国新[1] 程国君[1] 杨小龙[1] 

机构地区：[1]安徽理工大学材料科学与工程学院,淮南232001

出　　处：《化工新型材料》2011年第9期122-124,共3页New Chemical Materials

基　　金：安徽省高校省级优秀青年人才基金项目(2009SQRZ066);安徽理工大学2010年度青年教师科学研究基金项目

摘　　要：通过L16(45)正交试验,研究废胶粉添加量、废胶粉目数、硅烷偶联剂KH550用量对共混胶料力学性能的影响。研究结果表明:当废胶粉添加量为10%,废胶粉目数为80目,硅烷偶联剂KH550用量为1.5%时,共混胶料的力学性能最优,拉伸强度为27.89MPa。实验证明,废胶粉的改性有助于提高共混胶料的力学性能。而热重分析表明,改性废胶粉的加入对天然橡胶的热稳定性能影响不大。在同等老化条件下,硅烷偶联剂KH550和废胶粉可以改善共混胶料的热氧老化性能。The effects of the particle size,the content of waste rubber powder（WRP）,the content of silane coupling agent KH550 on the mechanical properties of NR/WRP blends were investigated through L16（45） orthogonal experiments.The results showed that when mass fraction of WRP 10%,80 mesh of WRP and mass fraction of silane coupling agent（KH550）1.5%,the mechanical properties of the blends was excellent,the tensile strength of the blends was 27.89MPa.The experiments proved the addition of modified WRP improved the mechanical properties of the blends.The blends was analyzed by TG,the results showed that the thermal stability of NR had little effect with the addition of modified WRP.Under same aging condition,silane coupling agent KH550 and WRP could improve thermal oxidative aging performance.

关 键 词：废胶粉 硅烷偶联剂KH550 力学性能 热稳定性 热氧老化 

分 类 号：TQ330.1[化学工程—橡胶工业]