相容剂对PP/TPEE共混物动态流变性能影响  

Influence of compatibilizer on dynamic rheological behavior of PP/TPEE blends

作　　者：秦艳分[1] 沈金科[1] 周翔[1] 李邵波[1] 王秀华[1] 

机构地区：[1]浙江理工大学先进纺织材料与制备技术教育部重点实验室,浙江杭州310018

出　　处：《纺织学报》2013年第9期1-5,共5页Journal of Textile Research

基　　金：浙江省重点科技创新团队项目(2009R50013);国家国际科技合作专项项目(2011DFB51570)

摘　　要：选用聚烯烃弹性体接枝甲基丙烯酸缩水甘油酯(POE-g-GMA)、聚丙烯接枝甲基丙烯酸缩水甘油酯(PP-g-GMA)、乙烯-醋酸乙烯共聚物(EVA)作为PP/TPEE共混体系的相容剂,采用旋转流变仪考察共混物的动态流变行为及相行为。结果表明:PP/TPEE/EVA的复数黏度、储能模量和损耗模量最小;由时温叠加曲线得到的PP/TPEE、PP/TPEE/POE-g-GMA、PP/TPEE/PP-g-GMA、PP/TPEE/EVA的相分离温度分别为220、230、240和250℃,适用的频率范围分别大于1.32、0.15、1.12和2.82 Hz;EVA的加入使得相分离现象更加明显,而POE-g-GMA对相容性有一定的改善;cole-cole曲线得到的结果与时温叠加曲线得到的结果有较好的一致性,而且比时温叠加曲线更为准确。POE-g-GMA,PP-g-GMA and EVA were used as the compatibilizers for PP/ TPEE blends whose dynamic rheological and phase behaviors were investigated by rotary rheometer.The experimental results showed that the complex viscosity,energy storage modulus and loss modulus of PP/TPEE/EVA blend were the lowest.Calculated from time-temperature superposition（TTS）,the temperatures of phase separation for PP/TPEE,PP/TPEE/POE-g-GMA and PP/TPEE/PP-g-GMA were 220,230,240 and 250 ℃,respectively,and their applicable frequency range were above 1.32,0.15,1.12 and 2.82 Hz,respectively.The addition of EVA to the blends made the phase separation phenomena more obvious,while the addition of POE-g-GMA improved the compatibility of the blends.The results of cole-cole curves were in better agreement with those of TTS curves but more accurate.

关 键 词：聚丙烯 热塑性聚酯弹性体 相容剂 时温叠加 

分 类 号：TQ322[化学工程—合成树脂塑料工业]