An empirically derived model for further increasing microwave curing rates of epoxy-amine polymerizations

Hubbard Robert L.; Tyler David R.; Thompson Brady

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An empirically derived model for further increasing microwave curing rates of epoxy-amine polymerizations

机译：用于进一步增加环氧胺聚合的微波固化率的经验衍生模型

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The reaction rates of common epoxy resins with diamine crosslinking agents in uniform microwave fields have been compared according to a variety of structural features. A statistically designed experimental matrix was used to determine that the curing rates were linearly dependent on only two significant variables, amine basicity, and degrees of rotational freedom (entropy) of the reactants. Surprisingly, the molecular polarizability, which is commonly understood to be responsible for the transfer of microwave electromagnetic energy to molecules with permanent dipoles, had no significant effect even as a dependent variable. A very high probability model was produced that accurately predicts the reactivities of epoxide and diamine reactants with respect to specific structural features. Further evidence is provided for a dominant linear pregelation polymerization and a uniform microwave reaction field.

机译：根据各种结构特征，比较了普通环氧树脂与二胺交联剂在均匀微波场中的反应速率。使用统计设计的实验矩阵确定固化速率仅与两个重要变量线性相关，即胺碱度和反应物的旋转自由度（熵）。令人惊讶的是，分子极化率即使作为因变量也没有显著影响。通常认为，分子极化率负责将微波电磁能转移到具有永久偶极子的分子。产生了一个非常高的概率模型，可以准确预测环氧化物和二胺反应物相对于特定结构特征的反应性。进一步证明了线性预凝胶聚合和均匀的微波反应场是占主导地位的。

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《Journal of Applied Polymer Science》 |2021年第2期|共7页
作者
Hubbard Robert L.; Tyler David R.; Thompson Brady;
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作者单位

Lambda Technol Inc Morrisville NC USA;

Univ Oregon Dept Chem &

Biochem Eugene OR 97403 USA;

Univ Oregon Dept Chem &

Biochem Eugene OR 97403 USA;

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原文格式 PDF
正文语种 eng
中图分类高分子化合物工业（高聚物工业）;
关键词
crosslinking; irradiation; manufacturing; synthesis and processing techniques; thermosets;

机译：交联;辐照;制造;合成和加工技术;热固性夹;

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机译：微波固化聚合物复合材料

An empirically derived model for further increasing microwave curing rates of epoxy-amine polymerizations

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