Experimental analysis and modelling of temperature- and humidity-controlled curing

Experimental analysis and modelling of temperature- and humidity-controlled curing
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控温控湿固化实验分析与建模

DOI:
10.1007/s42464-021-00085-9
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发表时间:
2021
影响因子:
1.3
通讯作者:
Dilger
Dilger
中科院分区:
化学4区
文献类型:
--
作者:
Jennrich;Aydogdu;Johlitz;Glaser;Stammen;Dilger

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关于固化聚合物的反应动力学建模已经有很多讨论。典型地,固化是通过发展称为固化度的变量作为温度和时间的函数来描述的。在本文中考虑的材料表现出两种不同的固化机制,即温度激活和基于扩散。为了能够描述复杂的硬化过程,材料进行了广泛的实验分析,并根据实验观察制定了一个一致的耦合反应动力学模型。该模型能够将材料的热、热量和机械特性实施到有限元(FE)框架中。
There has been much discussion about modelling the reaction kinetics of a curing polymer. Typically, curing is described by the development of a variable called degree of curing as a function of temperature and time. The material considered in this paper exhibits two different curing mechanisms, namely temperature-activated and diffusion-based. To be able to describe the complex hardening process, the material is extensively analysed experimentally, and a thermodynamically consistent coupled reaction kinetics model is formulated based on experimental observations. This model enables the implementation of the thermal, caloric, and mechanical properties of the material into a finite element (FE) framework.
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