Monitoring the vulcanization of elastomers: Comparison of curemeter and ultrasonic online control

被引:19
作者
Jaunich, Matthias [1 ]
Stark, Wolfgang [1 ]
Hoster, Bernhard [2 ]
机构
[1] Fed Inst Mat Res & Testing, Dept Durabil Polymers 6 3, D-12205 Berlin, Germany
[2] Iserlohner Kunststoff Technol GmbH, D-58638 Iserlohn, Germany
关键词
Cure process; Ultrasound; Curemeter; Elastomer; Vulcanization; Online control; WAVE-PROPAGATION; CURING KINETICS; RELAXATIONS; THERMOSETS; DEPENDENCE;
D O I
10.1016/j.polymertesting.2008.11.005
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The vulcanization of elastomeric materials has a high impact on the properties of the final product. Therefore, it is important to monitor and control this crosslinking process. A common technique to attain the necessary curing time is the use of a curemeter in accordance with ISO 6502 in order to determine the time for full cure of a sample with a standardized geometry. Based on this result and a lot of practical experience, the required curing time for a given product geometry is estimated. Within the scope of this work, a new analysis technique will be compared with the standard procedure. The ultrasonic online control employs ultrasound waves to measure the changes in material properties caused by vulcanization. For this study, a natural rubber compound with a conventional curing system was investigated by both techniques. It was found that the results of the ultrasonic technique show good agreement with the results of the curemeter. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:84 / 88
页数:5
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