Online measurement of thermal diffusivity during cure of an epoxy composite

被引：13

作者：

Friis-Pedersen, H. H.

Pedersen, J. H.

Haussler, L.

Storm, B. K.

机构：

[1] Aalborg Univ, Esbjerg Inst Technol, DK-6700 Esbjerg, Denmark

[2] Leibniz Inst Polymer Res Dresden, D-01069 Dresden, Germany

来源：

POLYMER TESTING | 2006年 / 25卷 / 08期

关键词：

cure processes; composite material; epoxy composite; thermal diffusivity; modulated differential scanning calorimetry (MDSC); Angstrom method;

D O I：

10.1016/j.polymertesting.2006.07.005

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Thermal diffusivity was measured online during cure of an epoxy composite using a method somewhat similar to the Angstrom Method. It is shown that a simple experimental setup can be used, thus avoiding expensive instrumentation. The experimental instrumentation is explained in detail. The measurements show an increase of thermal diffusivity during the cure of composite material. Using modulated differential scanning calorimetry (MDSC), heat capacity was measured online during the cure of an epoxy composite. Combining thermal diffusivity measurements with MDSC measurements, the thermal conductivity was found to change during the cure process, similar to the measurements of heat capacity. These changes are referred to vitrification at the end of the cure process. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1059 / 1068

页数：10

共 18 条

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Carslaw H. S., 1959, CONDUCTION HEAT SOLI

[3]

Ellis B, 1993, CHEM TECHNOLOGY EPOX

[4]

Garnier B, 2002, J REINF PLAST COMP, V21, P1193, DOI [10.1177/073168402128987725, 10.1106/073168402025775]