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

页码：615 / 621

页数：7

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