聚乙烯/石墨/碳纤维增强复合材料的制备及其性能研究  

Synthesis and property of PE/graphite/carbon fiber reinforced composite

作　　者：马跃[1] 张乐天[1,2] 韩生[1] 奚媛媛[2] 

机构地区：[1]上海应用技术学院,上海201418 [2]上海化工研究院有机化工研究所,聚烯烃催化技术与高性能材料国家重点实验室,上海市聚烯烃催化技术重点实验室,上海200062

出　　处：《化工新型材料》2016年第11期252-254,共3页New Chemical Materials

基　　金：上海市创新计划纳米专项资助(11nm0502000);上海市聚烯烃催化技术重点实验室(12DZ2260400)

摘　　要：将改性石墨和表面含有羟基的碳纤维与氯化镁复合,然后负载四氯化钛催化组分,制得复合载体型齐格勒-纳塔催化剂,最后经过乙烯原位聚合,制得含有多维碳材料的聚乙烯(PE)/石墨/碳纤维的新型复合材料。结果表明:改性石墨、碳纤维、氯化镁复合作为催化剂的载体,能够制得高活性的乙烯聚合催化剂。石墨、碳纤维和氯化镁的复合载体型催化剂制得的PE/石墨/碳纤维的新型复合材料力学性能较好,拉伸强度达到38.5MPa,断裂伸长率达到560%,冲击强度达到107kJ/m^2,分别比纯PE提高45.28%、28.74%和16.30%。Heterogeneous Z-N catalysts were prepared by loading TIC14 on a mixture of modified graphite and carbon fiber with hydroxyl as effective composite fillers in magnesium chloride. The polyethylene/graphite/carbon fiber composites were produced via in-situ polymerization. The results showed that highly active ethylene polymerization catalyst with modi- fied graphite,carbon fiber and MgCl2 could be obtained. The polyethylene/graphite/carbon fiber composites produced by heterogeneous Z-N catalysts supported on graphite/carbon fiber/magnesium chloride had a better mechanical property. The maximum tensile strength of polyethylene composites was 38.5MPa. The maximum elongation at break was 560%. The maximum impact strength was 107kJ/m2. Its tensile strength, elongation at break and impact strength has increased by 45.28% ,28.74%, 16.30% than the polyethylene with no filler respectively.

关 键 词：石墨 碳纤维 聚合 机械性能 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]