潘璞
PAN Pu(College of the Chemistry and Chemical Engineering of Hunan Institute of Engineering

• 1:湖南工程学院化学化工学院

摘要(Abstract)：

研究了不同螺杆转速、熔体停留时间、熔融温度及静态高温状态时,温度和时间对聚酯低聚物生成的影响。结果表明:低聚物的生成主要是热降解和热氧化降解以及力学降解共同作用的结果;当螺杆转速加快时,力学降解作用加强;高温下时间延长,低聚物含量也显著增加。因此适当的纺丝温度、螺杆转速和加工时间,对减少低聚物的生成及控制聚酯熔体的质量至关重要。
In the difference screw rotating speed,melt retention time,melting temperature and static melt temperature,the influence of time and temperature on formation of polyester oligomer was analyzed.The results showed that the formation of oligomer is mainly by thermal degradation,thermooxidation degradation and mechanical degradation,the higher the temperature,the longer the residence time,the higher oligomer content was produced.The oligomer content can be controlled by moderating the melt residence time and temperature during the production.

关键词(KeyWords)： 聚酯;低聚物;降解;螺杆
polyester,oligomer,degradation,screw

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 潘璞
PAN Pu(College of the Chemistry and Chemical Engineering of Hunan Institute of Engineering

DOI: 10.16090/j.cnki.hcxw.2012.06.008

参考文献(References)：

• [1]杨始堃,陈玉君.聚酯化学.物理.工艺[M].广州:中山大学出版社,1995:1-5.
• [2]王余伟,王金堂.聚酯PET稳定剂应用现状[J].合成技术及应用,2007,22(4):32-37.
• [3]祝爱兰,任明利.PET中环状低聚物的研究[J].上海化工,2005,30(5):24-28.
• [4]Cooper D R,Semlyen J A.Equilibrium ring concentrations and theatatistical conformations of polymer chains[J].Polymer,1973,14(5):185-192.
• [5]魏文良,张瑜,赵斌.聚酯熔体输送过程中低聚物含量的变化[J].合成纤维工业,2007,30(5):47-48.
• [6]张师民.聚酯的生产及应用[M].北京:中国石化出版社,1997:78-80.
• [7]马欣,魏文良.低聚物对聚酯纺丝及拉膜的影响研究[J].合成技术及应用,2008,23(1):51-53.
• [8]赵斌.PET聚酯中低聚物表征及控制方法研究[D].东华大学,2008.
• [9]Vermylen V,Lodefier P,Devaux J.Study of the thermal evolution ofthe cylic-oligomer formation in a cydlic-oligomer-free PET[J].Journal ofPolymer Science,Part A:Polymer Chemistry,2000,38(3):416-422.
• [10]Pang K.,Kotek R.,Tonelli A.Review of conventional and novelpolymerization rocesses for polyesters[J].Progress in Polymer Science,2006,31:1 009-1 037.