Study on phase-change characteristics of PET-PEG copolymers

被引：74
|
作者：
Hu, Ji [1 ]
Yu, Hao [1 ]
Chen, Yanmo [1 ]
Zhu, Meifang [1 ]
机构：
[1] Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 200051, Peoples R China
来源：
JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS | 2006年 / 45卷 / 04期
关键词：
phase-change materials (PCMs); phase-change fiber; PET-PEG copolymer; PET/PEG blend; DSC;
D O I：
10.1080/00222340600770210
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Polyethylene glycol (PEG) was selected as a phase-change material (PCM) and the phase-change fibers of its copolymers with polyethylene terephalate (PET), PET-PEG, were successfully prepared by melt spinning. The PET-PEG copolymers have solid-solid phase change characteristics at 10-60 degrees C without obvious liquid substance appearing, while PET/PEG blends will lose their phase-change characteristics since the PEG of the blends may melt and leak under high temperature. By controlling the molecular weight and relavent proportion of PEG added, the phase-change temperature range and the enthalpy can be adjusted.
引用
收藏
页码：615 / 621
页数：7
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