Comparative study of the dynamic glass transition temperature by DMA and TMDSC

被引：113

作者：

Gracia-Fernandez, C. A. ^{[2
]}

Gomez-Barreiro, S. ^{[3
]}

Lopez-Beceiro, J.

Tarrio Saavedra, J. ^{[1
]}

Naya, S. ^{[1
]}

Artiaga, R. ^{[1
]}

机构：

[1] Univ A Coruna, Escola Politecn Super, Ferrol 15403, Spain

[2] Waters Cromatografia SA, Thermal Anal Rheol & Microcalorimetry Application, TA Instruments, Madrid 28049, Spain

[3] Univ Coll Dublin, Dept Appl Phys, CESUGA, La Coruna 15190, Spain

来源：

POLYMER TESTING | 2010年 / 29卷 / 08期

关键词：

Glass transition temperature; Thermal properties; TMDSC; DMA; DIFFERENTIAL SCANNING CALORIMETRY; (N=0)/1,2 DCH; REGION; POLYMERS;

D O I：

10.1016/j.polymertesting.2010.09.005

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Measurements of the glass transition temperature obtained by dynamic mechanical analysis (DMA) and temperature modulated differential scanning calorimetry (TMDSC) are reported to be different. This was mainly attributed to the frequency effect. To obtain comparable measurements, experimental conditions were studied. Although some experimental issues had to be fixed, it was possible to apply the same frequency and temperature using quasi-isothermal conditions in both instruments. The method was tested with three different polymer samples. It was then found that when choosing a suitable response parameter, i.e. the phase angle, the dynamic glass transition temperature values obtained by both methods are practically the same. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1002 / 1006

页数：5

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