Abstract

In the present work, chalcone benzoxazine (Chal-Bz) was co-polymerized with two bio-based benzoxazines namely cardanol (CrAb) and eugenol (EuAb) benzoxazine and coated over cotton fabric. The Chal-Bz/CrAb and Chal-Bz/EuAb blends coated cotton fabrics show water contact angle values of 163° and 156° respectively and their oil–water separation efficiency were observed found to be 97 and 96% respectively. In addition, the glycidoxypropyltrimethoxysilane (GPTMS) functionalized bio-silica in varying weight percentages (1, 3, 5, 7 and 10 wt%) was also reinforced with two co-polymerized blended matrices to obtain respective composites. The developed composites were studied for their dielectric, thermal and morphological behaviours. The values of dielectric constant of 10 wt% bio-silica reinforced Chal-Bz/CrAb and Chal-Bz/EuAb composites were found to be 2.1 and 2.3, respectively. Similarly the values of contact angle of 10 wt% bio-silica reinforced chal-Bz/CrAb and Chal-Bz/EuAb composites were 137° and 116°, respectively. Data obtained from different studies suggest that these bio-silica reinforced benzoxazine composites can be used in the form of coatings, adhesives, sealants and encapsulants for high performance micro-electronics insulation applications under adverse environmental conditions.

Graphic Abstract

Thermal assisted polymerization of chalcone based benzoxazine (Chal-Bz) with bio based benzoxazines cardanol-aniline based benzoxazine (CrAb) and eugenol-aniline based benzoxazine (EuAb)) for low k and oil–water separation application.

中文翻译：

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查尔酮苯并恶嗪和生物苯并恶嗪涂层棉织物的共混物，用于油水分离和生物硅增强的纳米复合材料，用于低k应用

抽象的

在目前的工作中，查尔酮苯并恶嗪（Chal-Bz）与两种生物基苯并恶嗪即腰果酚（CrAb）和丁子香酚（EuAb）苯并恶嗪共聚并涂覆在棉织物上。Chal-Bz / CrAb和Chal-Bz / EuAb共混涂层棉织物的水接触角分别为163°和156°，观察到的油水分离效率分别为97％和96％。另外，还用两种共聚共混基质增强了重量百分比（1、3、5、7、10 wt％）的环氧丙氧基丙基三甲氧基硅烷（GPTMS）功能化的生物二氧化硅，从而获得了各自的复合材料。研究了开发的复合材料的介电，热和形态学行为。发现10wt％的生物二氧化硅增强的Chal-Bz / CrAb和Chal-Bz / EuAb复合材料的介电常数分别为2.1和2.3。类似地，10wt％的生物二氧化硅增强的chal-Bz / CrAb和Chal-Bz / EuAb复合材料的接触角分别为137°和116°。从不同研究获得的数据表明，这些生物二氧化硅增强的苯并恶嗪复合材料可以涂层，粘合剂，密封剂和密封剂的形式用于不利的环境条件下的高性能微电子绝缘应用。

图形摘要

查尔酮基苯并恶嗪（Chal-Bz）与生物基苯并恶嗪的热辅助聚合，以低k和油水分离应用为基础，腰果酚-苯胺基苯并恶嗪（CrAb）和丁香酚-苯胺基苯并恶嗪（EuAb）。