插层聚合法制备MMT/聚乙烯纳米塑料  

Intercalation polymerization of MMT / PE nano-plastic

作　　者：付丽丽[1] 李玱玱 邢彬[3] 

机构地区：[1]辽宁石化职业技术学院,辽宁盘锦121001 [2]全国橡胶塑料设计技术中心,北京100143 [3]沈阳黎明航空发动机集团公司,辽宁沈阳110043

出　　处：《橡塑技术与装备》2011年第4期31-34,共4页China Rubber/Plastics Technology and Equipment

摘　　要：本研究以2,6-二乙酰基吡啶、2,4,6-三甲基苯胺和FeCl2.4H2O为原料,制备了后过渡金属铁的二亚胺配合物。将其负载在改性蒙脱土上,以己烷为溶剂、AlEt3为助催化剂进行聚合反应。通过红外光谱、X射线分析、热分析等,系统地研究了蒙脱土的改性条件对蒙脱土结构、蒙脱土载体铁系催化剂的聚合行为及聚合物结构与热性能的影响。研究表明最佳插层条件是:1831为插层剂、80℃、反应2 h、蒙脱土/1831(质量比)为3/1,此时层间距为2.72 nm,催化剂活性达1.073×106(g PE/mol Fe.h),聚乙烯堆密度为0.351g/cm3,形成MMT/PE纳米塑料。In this study,used 2,6-diacetyl pyridine,2,4,6-trimethyl aniline and FeCl2 · 4H2O as raw materials,prepared diimine complexes of late transition metal Fe.Loaded on the modified montmorillonites,it had a polymerization with hexane as solvent,AlEt3 as promoter.By infrared spectroscopy,X-ray analysis,thermal analysis,a systematic study was carried on effects of montmorillonite structure,polymerization behavior of montmorillonite carrier iron-based catalyst,polymer structure and thermal properties to modification conditions of montmorillonites.The study indicated that the optimum intercalation conditions were： 1831 as the intercalation agent,80℃,reaction of 2 h,MMT / 1831（mass ratio） was 3 / 1,layer spacing of 2.72 nm,the catalytic activity of 1.073 × 106（g PE / mol Fe · h）,polyethylene bulk density was 0.351g/cm3,MMT / PE nano-plastics was formed.

关 键 词：蒙脱土 乙烯聚合反应 纳米复合材料 

分 类 号：TB383.1[一般工业技术—材料科学与工程]