废橡胶低温力化学再生技术的影响因素  

Effect factors of waste rubber regeneration technology by low-temperature mechanochemical method

作　　者：郭磊[1] 杨洪于 汪传生[1] 

机构地区：[1]青岛科技大学机电工程学院,山东青岛266061

出　　处：《合成橡胶工业》2017年第3期179-186,共8页China Synthetic Rubber Industry

基　　金：山东省自然科学基金资助项目(ZR2015EL011);山东省科技发展计划资助项目(2014GSF116013);青岛市民生科技计划资助项目(4-2-3-72-nsh)

摘　　要：通过自制的低温力化学解联塑化机实现了废橡胶的低温力化学再生,并采用六因素五水平的正交试验,考察了工艺参数对废橡胶再生效果的影响。结果表明,在95℃左右的低温条件下可实现废橡胶的再生;当剪切混炼时间为7 min、剪切混炼装置转子转速为50 r/min、填充系数为0.7、上顶栓压力为0.8 MPa、上冷却水温度和解联塑化装置冷却水温度分别为35~40℃和35℃时,所制得再生胶的门尼黏度、拉伸强度、撕裂强度、扯断伸长率分别为62.50、15.48 MPa、55.17 kN/m和455.9%。The regeneration of waste rubber was realized by low-temperature mechanochemical de- crosslinking plasticator, and influences of technolog- ical parameters on regeneration effect of waste rubber were investigated by orthogonal experiment with six factors and five levels. The results showed that regen- eration of waste rubber was realized at a low tempera- ture of about 95 ℃. When the optimum technological conditions were shear mixing time 7 min, rotational speed of shear mixing device 50 r/min, fill factor 0. 7, ram piston pressure 0. 8 MPa, temperature of mixer cooling water 35 -40 ℃, temperature of extru- der cooling water 35 ℃, the Mooney viscosity, ten- sile strength, tear strength and elongation at break of regenerated rubber 55.17 kN/m, 455.9% was 62. 50, 15.48 MPa, respectively.

关 键 词：废橡胶 低温 力化学 再生 物理机械性能 

分 类 号：TQ335[化学工程—橡胶工业]