HDPE/LLDPE/OMMT纳米复合材料的结构与性能  

The Structure and Properties of HDPE/LLDPE/OMMT Nanocomposite

作　　者：高振滨[1] 谷正[1,2] 宋国君[1] 李培耀[1] 周连仲[1] 

机构地区：[1]青岛大学高分子材料研究所,山东青岛266071 [2]兰州大学化学化工学院,甘肃兰州730000

出　　处：《塑料》2011年第1期11-13,共3页Plastics

摘　　要：采用直接注射法制备HDPE/LLDPE/OMMT纳米复合材料,采用透射电子显微镜研究HDPE/LLDPE/OMMT纳米复合材料的微观结构,研究有机蒙脱土含量对纳米复合材料性能的影响。透射电子显微镜结果显示,制备的HDPE/LLDPE/OMMT纳米复合材料是一种半剥离型的纳米复合材料。结果表明:蒙脱土的加入大大提高了纳米复合材料的力学性能和热变形温度。当有机蒙脱土质量含量仅为6%时,屈服强度和拉伸模量分别提高14.0%和59.7%,弯曲强度和弯曲模量分别提高了14.2%和60.0%。The HDPE/LLDPE/OMMT nanocomposites were prepared by direct injection. The micro-structure of HDPE/ LLDPE/OMMT nanocomposite was studied by TEM. The effects of OMMT content on the properties of the nanocomposite were also investigated. The results of TEM showed that the OMMT were half-exfoliated in the HDPE/LLDPE matrix. The results showed the introduction of OMMT greatly improved the mechanical properties and the thermal deformation temperature of the nanocomposite. When the OMMT content was 6.0 % , the yield strength and tensile modulus were improved by 14.0 % and 59.7 % ,while the bending strength and bending modulus were improved by 14.2 % and 60.0 %.

关 键 词：高密度聚乙烯 线性低密度聚乙烯 有机蒙脱土 TEM 力学性能 热变形温度 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]