顺丁橡胶-有机蒙脱土纳米复合材料的制备  

Preparation of cis-1,4-Polybutadiene Rubber-Organic Montmorillonite Nanocomposite

作　　者：谷正[1] 王文才[2] 宋国君[1] 李培耀[1] 王宝金[1] 

机构地区：[1]青岛大学高分子材料研究所,山东青岛266071 [2]化工资源有效利用国家重点实验室,北京化工大学,北京100029

出　　处：《石油化工》2008年第4期393-396,共4页Petrochemical Technology

摘　　要：采用溶液插层法制备了顺丁橡胶(BR)-有机蒙脱土(OMMT)纳米复合材料,采用X射线衍射仪(XRD)和透射电子显微镜(TEM)表征了BR-OMMT纳米复合材料的结构,并研究了BR-OMMT纳米复合材料的力学性能。通过100mL聚合瓶小试,考察了回收溶剂对丁二烯转化率的影响。XRD和TEM表征结果显示,OMMT片层以纳米级均匀分布在BR基体中,BR-OMMT纳米复合材料中OMMT的层间距由1.89nm增至2.52nm。与纯BR相比,当m(BR):m(OMMT)=100:6时,BR-OMMT纳米复合材料的拉伸强度提高了182%。研究结果表明,使用回收溶剂时,丁二烯的转化率大于90%。The cis-1,4-polybutadiene rubber（BR）-organic montmorillonite（OMMT） nanocomposite was prepared by using solution intercalation method. Structure of BR-OMMT nanocomposite was studied by means of XRD and TEM, and its mechanical properties were investigated. Effect of recovered solvent on conversion of butadiene in polymerization was studied in a 100 mL microreactor. The results of XRD and TEM show that molecular chains of BR are intercalated into OMMT layers. The latter is nano sized in dimension and dispersed in BR matrix. Interlayer space distance of BR-OMMT nanocomposite is in the range of 1.89 - 2.52 nm. Compared with BR, tensile strength of BR-OMMT nanocomposite increases by 182% when 6% （mass fraction ） OMMT is added. Conversion of butadiene in polymerization is higher than 90% by using recovered solvent.

关 键 词：顺丁橡胶 有机蒙脱土 溶液插层 纳米复合材料 

分 类 号：TQ333.2[化学工程—橡胶工业]