Rheological, Mechanical and Thermal Properties of Polytrimethylene Terephthalate

被引：4

作者：

Guo, Jing ^{[1
]}

Xiang, Heng-Xue ^{[1
,2
]}

Wang, Qian-Qian ^{[1
]}

机构：

[1] Dalian Polytech Univ, Sch Text & Mat Engn, Dalian 116034, Peoples R China

[2] Donghua Univ, Coll Mat Sci & Engn, Shanghai, Peoples R China

来源：

POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING | 2012年 / 51卷 / 02期

关键词：

Dynamic mechanical property; Molecular weight; Polytrimethylene terephthalate (PTT); Rheological property; Thermal behaviors; POLY(TRIMETHYLENE TEREPHTHALATE); CRYSTALLIZATION KINETICS; BLENDS; BEHAVIOR; PTT; MORPHOLOGY; FIBERS; PET;

D O I：

10.1080/03602559.2011.551979

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The rheological, mechanical properties and thermal behaviors of polytrimethylene terephthalate were investigated. The results show that: The critical shear rate decreased with an increase in molecular weight, and also increased with a rise in temperature. Zero shear viscosity increased with an increase in molecular weight and decreased with a rise in temperature. The alpha-relaxation peak was clearly seen at about 70 degrees C. The loss modulus of high molecular weight PTT decreased rapidly. The glass transition temperature of PTT was about 72 degrees C. The thermal degradationof PTT occurred in the temperature range of 400 degrees C-467 degrees C, and the maximum heat loss temperature was 439 degrees C.

引用

页码：199 / 207

页数：9

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