Functionally Graded Adhesives via High-Energy Irradiation
Functionally Graded Adhesives via High-Energy Irradiation
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通过高能辐照的功能梯度粘合剂
DOI：
10.1021/acsapm.0c01137
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发表时间：
2021
影响因子：
5
通讯作者：
Schmidt, Daniel F.
中科院分区：
文献类型：
--
作者：
Xia, Weiqing;Najafian, Sara;Cassano, Alessandro G.;Stapleton, Scott E.;Schmidt, Daniel F.
示出了热固化环氧树脂/酸酐系统在交联密度、玻璃化转变温度和模量方面表现出剂量依赖性的增加。各种敏化剂的加入进一步提高了对辐射诱导交联的敏感性。Shibayama提出的一个理论，将Tg与交联密度联系起来，提供了一种有用的方法来预测可能产生一组特定性质的剂量。这种材料配方和加工方法的结合，以及预测所得性能的简单分析模型的识别，为功能梯度材料的生成提供了一种有用的策略。
A thermally cured epoxy/anhydride system is shown to exhibit dose-dependent increases in cross-link density, glass transition temperature, and modulus. The addition of various sensitizers further boosts sensitivity toward radiation-induced cross-linking. A theory proposed by Shibayama relatingTgwith cross-link density provides a useful means to predict the dose at which a particular set of properties may be produced. This combination of an approach to materials formulation and processing and the identification of simple analytical models to predict resultant properties provides a useful strategy for the generation of functionally graded materials.