POE/纳米碳酸钙复合材料的流变性能研究

熊忠，陈骁，韩高亮，王晓林，王淑英，吴其晔
（青岛科技大学 橡塑材料与工程教育部重点实验室，山东 青岛266042）

摘要：试验研究聚烯烃弹性体（POE）/纳米碳酸钙复合材料的流变性能。结果表明，随着剪切速率的增大，复合材料的剪切粘度和非牛顿指数逐渐减小，挤出胀大比和零口型入口压力降增大，挤出物外观变差；随着纳米碳酸钙用量的增大，复合材料的剪切粘度对剪切速率的敏感性下降，非牛顿指数增大，挤出胀大比总体上呈下降趋势，零口型入口压力降变化较小，在相对低的剪切速率下，挤出物外观得到改善。
关键词：聚烯烃弹性体；纳米碳酸钙；复合材料；流变性能；挤出胀大比

中图分类号：TQ33038+3；TQ3342文献标识码：A文章编号：1000890X(2005)12070904
作者简介：熊忠（1979），男，湖北黄石人，青岛科技大学在读硕士研究生，主要从事新型聚烯烃弹性体、EPDM及其共混材料的力学、加工流变性能方面的研究。


Rheological properties of POE/nanocalcium carbonate composite

XIONG Zhong,CHEN Xiao,HAN Gaoliang,WANG Xiaolin,WANG Shuying,WU Qiye
(Qingdao University of Science and Technology,Qingdao266042,China)

Abstract:The rheological properties of polyolefin elastomer(POE)/nanocalcium carbonate composite were experimentally 
investigated.The results showed that the shear viscosity and nonNewton exponent of the composite decreased gradually,the 
die swell and the pressure loss at the entrance of zero die increased,and the appearance of extrudate deterioated as the 
shear rate increased;the sensitivity of the shear viscosity of composite to the shear rate decreased,the nonNewton exponent 
increased,in general,the die swell decreased gradually,the pressure loss at the entrance of zero die changed little and the appearance of extrudate improved at relatively low shear rate as the content of nanocalcium carbonate increased.
Keywords:POE;nanocalcium carbonate;composite;rheological property;die swell

　

　

　

　

　

超声波在SBS/粘土纳米复合材料研究中的应用

邬智勇，夏金魁，伍仟新，姚亮红，罗湘安
(巴陵石油化工有限责任公司，湖南 岳阳414014)

摘要：采用超声波技术对粘土进行精制和有机改性，探讨超声波功率和处理时间对苯乙烯丁二烯苯乙烯三嵌段共聚物(SBS)/粘土纳米复合材料性能的影响。结果表明，超声波技术是粘土剥片和解团聚的有效方法，在超声波输出功率为750 W、处理时间为30 min、粘土用量为2.5份条件下，制得的复合材料拉伸强度明显提高，有机粘土在SBS基体中达到纳米级分散。
关键词：超声波；SBS；粘土；有机改性；纳米复合材料

中图分类号：TB559；TQ325.1文献标识码：A文章编号：1000890X(2005)12071303
作者简介：邬智勇（1965），男，湖南长沙人，巴陵石油化工有限责任公司高级工程师，硕士，主要从事科研管理工作。





Application of ultrosonic in SBS/clay nanocomposite

WU Zhiyong,XIA Jinkui,WU Qianxin,YAO Lianghong,LUO Xiangan
(Baling Petrochemical Co. Ltd,Yueyang414014,China)

Abstract:The clay was refined and organically modified with the ultrasonic technology;and the effect of the ultrasonic power and treatment time on the properties of styrenebutadienestyrene copolymer(SBS)/clay nanocomposite was investigated.The 
results showed that the ultrasonic was effective for clay peeling and deagglomeration;and the organic clay was dispersed in nano size in SBS matrix and the tensile strength of the composite improved significantly by using 750 W output power of 
ultrasonic,30 min treatment time and 25 phr clay.
Keywords:ultrasonic;SBS;clay;organic modification;nanocomposite


　

　

　

　

负载钛催化体系陈化对高反式丁二烯-异戊二烯
共聚橡胶聚合转化率的影响

杜凯，彭杰，姚薇，李旭东，赵永仙，黄宝琛 
（青岛科技大学 橡塑材料与工程教育部重点实验室，山东 青岛266042）

摘要：以负载型TiCl4/MgCl2Al（i-Bu）3为催化体系合成高反式丁二烯（Bd）异戊二烯（Ip）共聚橡胶（TBIR），考察催化体系陈化方式和条件对聚合转化率的影响。结果表明，催化体系陈化有利于提高聚合转化率；三元陈化催化体系的聚合转化率大于二元陈化催化体系。三元陈化催化体系的优化陈化条件为：Ip/Ti摩尔比20；Al/Ti摩尔比20；加料顺序TiCl4/MgCl2，Al（i-Bu）3，Ip；温度20 ℃；时间5~10 min。
关键词：负载钛催化体系；高反式丁二烯异戊二烯共聚橡胶；丁二烯；异戊二烯；陈化

中图分类号：TQ31424；TQ33399文献标识码：A文章编号：1000890X(2005)12071604
基金项目：国家自然科学基金资助项目(20174021)；青岛市科委科学基金资助项目(02-2-kj-yj-30)

作者简介：杜凯(1980-)，男，山东营南人，青岛科技大学在读硕士研究生，从事高分子材料合成及结构和性能的研究。



Effect of aging of supported titanium catalyst system on conversion ratio 
during polymerization of high transbutadieneisoprene copolymer

DU Kai,PENG Jie,YAO Wei,LI Xudong,ZHAO Yongxian,HUANG Baochen
(Qingdao University of Science and Technology,Qingdao266042,China)

Abstract:The effect of the aging mode and condition of the supported TiCl4/MgCl2Al（i-Bu）3 catalyst system on the 
conversion ratio during the polymerization of high transbutadiene(Bd)isoprene(Ip) copolymer(TBIR) was investigated.The 
results showed that the aging of catalyst system was beneficial to increase the conversion ratio during polymerization;the 
conversion ratio of aged ternary catalyst system was greater than that of aged binary catalyst system;and the optimized aging condition of the aged ternary catalyst system was as follows:Ip/Ti mole ratio20,Al/Ti mole ratio20,addition orderTiCl4→MgCl2→Al（i-Bu）3→Ip,temperature20 ℃ and time5-10 min.
Keywords:supported titanium catalyst system;high transbutadieneisoprene copolymer;butadiene;isoprene;aging