微交联抗冲击间规聚丙烯复合材料制备及其性能研究  

Preparation and Properties of Impact-resistant Improved Light Cross-linked Syndiotactic Polypropylene Composite

作　　者：夏先荣 龙华月 程睿智 苏胜培[1,2] 张燕 XIA Xian-rong;LONG Hua-yue;CHENG Rui-zhi;SU Sheng-pei;ZHANG Yan(College of Chemistry and Chemical Engineering,Hunan Normal University,Changsha 410081,China;National&Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources,Changsha 410081,China)

机构地区：[1]湖南师范大学化学化工学院,湖南长沙410081 [2]石化新材料与资源精细利用国家地方联合工程实验室,湖南长沙410081

出　　处：《精细化工中间体》2024年第4期57-63,77,共8页Fine Chemical Intermediates

摘　　要：利用己内酯与木质素反应制备了改性木质素,将改性木质素、交联剂、硫磺与间规聚丙烯(s PP)共混,通过双螺杆挤出制备了微交联抗冲s PP复合材料。测试了微交联抗冲s PP复合材料的力学性能、流动性和热稳定性等。实验结果表明:当间规聚丙烯、交联剂、改性木质素、硫磺添加份数比例为100/0.2/1.0/0.3时,复合材料的力学性能较好,弯曲最大强度和冲击强度相对纯间规聚丙烯分别提高了11%和116%。An modification agent was prepared through the reaction of caprolactone and lignin.This agent,along with a crosslinking agent and sulfur,was blended with syndiotactic polypropylene(sPP),resulting in a micro-crosslinked sPP composite prepared through extrusion crosslinking.The mechanical properties,fluidity and thermal stability of the resulting micro-crosslinked sPP composites were tested.Experimental results indicated that the composite achieved optimal mechanical properties with a ratio of PP,crosslinking agent,modification agent,and sulfur at 100/0.2/1.0/0.3,and the maximum bending strength and impact strength of the composite were increased by 11%and 116%,respectively,compared with pure sPP.

关 键 词：微交联 抗冲击 聚丙烯复合材料 

分 类 号：TQ314.2[化学工程—高聚物工业]