射流凝固制备的天然橡胶性能的研究  

Preparation of natural rubber flocculated by jet coagulation

作　　者：崔军[1] 符新[2] 

机构地区：[1]海南大学材料与化工学院,海南海口570228 [2]海南大学机电工程学院,海南海口570228

出　　处：《化学工程师》2014年第4期1-3,共3页Chemical Engineer

基　　金：海南省重点科技计划应用研究及产业化项目(ZDXM20130087)资助

摘　　要：利用射流凝固(NR-j)的方法制备天然橡胶,研究了天然橡胶的性能。分析结果可得:射流凝固天然橡胶的溶胶含量较低,杂质含量、灰分含量、氮含量和塑性初值比酸凝固天然橡胶的大,而挥发分和塑性保持率较小。在硫化性能上,射流凝固天然橡胶的硫化速率比酸凝固天然橡胶的速率稍大,硫化胶的强度也大于酸凝固天然橡胶的强度,但其老化后的强度保持率小于酸凝固天然橡胶。The properties of natural rubber coagulated with jet. The results showed that the sol content,gray hair points and plasticity retention of jet-coagulated natural rubber （NR-j） were less than acid-coagulated natural rubber（NR-a）,but impurity content,ash content nitrogen content and initial plasticity were larger on curing proper- ties, the cure rate of NR-j were slightly larger than NR-a, Furthermore, the strength of vulcanized of NR-j is high- er than NR-a,but the strength retention after aging were less than NR-a.

关 键 词：天然橡胶 射流凝固 酸凝固 性能 

分 类 号：TQ332.1[化学工程—橡胶工业]