新型高流动聚丙烯注塑专用料分子量及流变性能研究  

Research of the molecular weight and rheological properties on new high-fluid polypropylene which used in injection molding

作　　者：李建[1,2] 王经逸[2] 房尔园[2] 蒋琪[2] 贾红兵[2] 

机构地区：[1]中国人民解放军78668部队 [2]南京理工大学教育部软化学和功能材料重点实验室

出　　处：《橡塑技术与装备》2011年第12期1-5,共5页China Rubber/Plastics Technology and Equipment

摘　　要：对由聚合得到的新型高流动聚丙烯注塑专用料M#的热稳定性、分子量及流动性进行了系统的表征,并与国外样品AP03B和M1600进行了比较。结果表明:M#和AP03B、M1600的热稳定性相似,起始分解温度304℃,最大热失重温度458℃,重均分子量及分子量分布的大小顺序为:M#>AP03B>M1600,熔体流动速率(MFR)大小顺序为AP03B>M1600>M#。在高温下,剪切速率(γ)将对M#的加工性能有较大影响。The Thermal stability、molecular weight and flow ability of new high-fluid polypropylene（M#） used in injection molding were characterizated and compared with the properties of AP03B and M1600.The results showed similar thermost-ability of three injection materials,there into,the onset degradation temperature（Tonset） and the max degradation temperature（Tmax） were 304℃ and 458℃ respectively.The value of molecular weight and molecular weight distribution index was lined up for M#AP03BM1600.The order of value of melt flow rate（MFR） was AP03BM1600M#.Shearing rate（γ） had a significant effect on the process of M# with higher temperature.

关 键 词：高流动性聚丙烯 流变性能 分子量及分子量分布 性能研究 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]