The mechanical, thermal, and barrier characteristics of an epoxy biocomposite coating made using rice husk biomass biosilica were investigated in this study. The primary objective of this research was to find out whether and how adding biosilica from biomass rice husks improve the polymeric coating material's properties and adopted as sustainable coating element. The thermo-chemical approach and an aqueous solution method were adopted to transform the rice husk ash into the biosilica and in silane treated form. The ultrasonicator was used to mix the biosilica particles with resin to create the composite coating material. The prepared coating material was then characterized using ASTM standards in order to evaluate the effects of biosilica addition. According to the results, the tensile and flexural properties were improved by the inclusion of silica particles up to 1 and 2 vol%. However the properties are reduced when the biosilica amount was increased up to 4 vol%. In contrast, the hardness and thermal conductivity of the 4 vol% of biosilica dispersed composite was 94 shore-D and 0.42 W/mK, respectively. In terms of mass loss stability, the 4 vol% biosilica dispersed composite outperformed. After the biosilica particle was added, the barrier behavior showed good resistance to oxygen penetration. However, the stability of water permeation was moderately affected. As a coating material for corrosion-prone metallic surfaces and other household coating applications, these mechanically enhanced, thermally strengthened, and barrier property strengthened biosilica-epoxy composites could be applied.

本研究研究了使用稻壳生物质生物二氧化硅制成的环氧生物复合涂层的机械、热和阻隔特性。本研究的主要目的是了解从生物质稻壳中添加生物二氧化硅是否以及如何改善聚合物涂层材料的性能，并将其用作可持续的涂层元素。采用热化学法和水溶液法将稻壳灰转化为生物二氧化硅和硅烷处理的形式。超声波发生器用于将生物二氧化硅颗粒与树脂混合以产生复合涂层材料。然后使用 ASTM 标准对制备的涂层材料进行表征，以评估添加生物二氧化硅的效果。根据结果​​，通过添加高达 1 和 2 vol% 的二氧化硅颗粒，可改善拉伸和弯曲性能。然而，当生物二氧化硅的量增加到 4 vol% 时，性能会降低。相比之下，4 vol% 的生物二氧化硅分散复合材料的硬度和导热系数分别为 94 Shore-D 和 0.42 W/mK。在质量损失稳定性方面，4 vol% 的生物二氧化硅分散复合材料表现出色。添加生物二氧化硅颗粒后，阻隔性能表现出良好的抗氧渗透性。然而，透水的稳定性受到了一定程度的影响。作为易腐蚀金属表面和其他家用涂料应用的涂层材料，这些机械增强、热增强和阻隔性能增强的生物二氧化硅-环氧树脂复合材料可以得到应用。