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Chitosan/polybenzoxazine/clay mixed matrix composite aerogels: preparation, physical properties, and water absorbency
Applied Clay Science ( IF 5.6 ) Pub Date : 2020-01-01 , DOI: 10.1016/j.clay.2019.105403
Almahdi A. Alhwaige , Hatsuo Ishida , Syed Qutubuddin

Abstract The present study reports development of chitosan/polybenzoxazine/clay mixed matrix composite aerogels (MMCAs) using freeze-drying of various sodium montmorillonite (Na-MMT) colloidal dispersions in chitosan/benzoxazine polymers blend in aqueous solution. Thermal treatment of aerogels leads to produce crosslinked MMCAs. The microstructure characteristics of the MMCAs were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The thermal properties of the MMCAs were evaluated by thermal gravimetric analysis (TGA). The obtained MMCAs have ultra-low densities within a very small range (

中文翻译:

壳聚糖/聚苯并恶嗪/粘土混合基质复合气凝胶:制备、物理性能和吸水率

摘要 本研究报告了壳聚糖/聚苯并恶嗪/粘土混合基质复合气凝胶 (MMCA) 的开发,使用冷冻干燥各种钠蒙脱石 (Na-MMT) 胶体分散体在壳聚糖/苯并恶嗪聚合物共混水溶液中。气凝胶的热处理导致产生交联的 MMCA。通过X射线衍射(XRD)和扫描电子显微镜(SEM)研究MMCA的微观结构特征。MMCA 的热性能通过热重分析 (TGA) 进行评估。获得的 MMCA 在非常小的范围内具有超低密度(
更新日期:2020-01-01
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