Parameters Optimization of Successive Self-nucleation/Annealing Thermal Fractionation Experiments for Polyethylene Resin and Comparison with Step Crystallization

Yan-hu Xue; Shu-qin Bo; Xiang-ling Ji

doi:10.11777/j.issn1000-3304.2015.14281

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Parameters Optimization of Successive Self-nucleation/Annealing Thermal Fractionation Experiments for Polyethylene Resin and Comparison with Step Crystallization

Research Article | 更新时间：2021-03-19

- Parameters Optimization of Successive Self-nucleation/Annealing Thermal Fractionation Experiments for Polyethylene Resin and Comparison with Step Crystallization
- Acta Polymerica Sinica Issue 3, Pages: 326-330(2015)
- 作者机构：
  
  1. 中国科学院长春应用化学研究所高分子物理与化学国家重点实验,长春,130022
  2. 中国科学院大学,北京,100049
- 作者简介：
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2015.14281
  CLC：
- Published：20 March 2015，
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Yan-hu Xue, Shu-qin Bo, Xiang-ling Ji. Parameters Optimization of Successive Self-nucleation/Annealing Thermal Fractionation Experiments for Polyethylene Resin and Comparison with Step Crystallization. [J]. Acta Polymerica Sinica (3):326-330(2015)
DOI：

Yan-hu Xue, Shu-qin Bo, Xiang-ling Ji. Parameters Optimization of Successive Self-nucleation/Annealing Thermal Fractionation Experiments for Polyethylene Resin and Comparison with Step Crystallization. [J]. Acta Polymerica Sinica (3):326-330(2015) DOI： 10.11777/j.issn1000-3304.2015.14281.

摘要

以支化聚乙烯树脂为研究对象

研究连续自成核与退火热分级实验中

初始温度点(Ts)、升温降温速率、温度间隔(T)和等温时间等实验参数对分级结果的影响

得到了一系列优化的实验参数或范围

为连续自成核与退火热分级方法的实际应用推广提供参考.并将连续自成核与退火(SSA)和逐步结晶(SC)两种热分级的实验结果进行了比较.

Abstract

A branched polyethylene resin was selected as an example to study the effects of experimental parameters of successive self-nucleation and annealing method on the results of thermal fractionation.Experimental parameters

such as the first selected self-seeding temperature (Ts)

heating and cooling temperature rates

temperature interval (T)

and the permanence time at Ts

are studied extensively in successive self-nucleation and annealing (SSA) thermal fractionation.A series of optimized parameters are obtained

which provide the reference for its application.In addition

the results from step crystallization (SC) and SSA thermal fractionations are compared carefully.

关键词

聚乙烯热分级实验参数优化

Keywords

PolyethyleneThermal fractionationExperimental parameterOptimization

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Related Institution

Department of Polymer Science and Engineering, University of Science and Technology of China

Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences

Beijing Key Laboratory of Clothing Materials R&D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, School of Materials Design & Engineering, Beijing Institute of Fashion Technology

Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences

Department of Chemical Engineering, Tsinghua University

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