低熔点聚酯流变性能研究  

Study on the Rheological Behavior of Low Melting Point Polyester

作　　者：林生兵[1] 姚峰[1] 瞿中凯[1] 金永龙[1] 郭永林[1] 

机构地区：[1]合成纤维国家工程研究中心,上海200540

出　　处：《金山油化纤》2003年第3期4-6,18,共4页Petrochemical Technology in Jinshan

摘　　要：采用英国Rosand公司RH7型毛细管流变仪对自制低熔点聚酯(PET)的流变性能进行了研究。结果表明:低熔点聚酯熔体属于非牛顿型假塑性流体;与普通聚酯PET相比,低熔点聚酯熔体粘度对温度的敏感性相对较小;对于改性剂R含量不同的低熔点聚酯,在后加工时应充分考虑到温度对熔体粘度的影响。The rheological behavior of self - produced low melting point polyester was studied with RH7 capillary rheogeniometer produced by Rosand Company based in Britain. The result showed that the low melting point polyester melt was non - Newton pseudoplastic fluid, and the viscosity of it was less sensitive to temperature than that of common PET. For these low melting point polyesters with different content of modifier R, the influence of temperature on viscosity of melt must be paid attention during post processing.

关 键 词：低熔点聚酯 流变性能 粘流活化能 RH7型 毛细管流变仪 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]