Scholarlink

<p>Here, two types of silicates (ex-situ SBA-15 and in-situ SiO<sub>2</sub>) were employed along with cardanol epoxy (CE) separately to perform the organic–inorganic hybrid coating over cotton via layer by layer (LBL) approach and compared. The silicates were preferred as primary layer along with silane cross-linkers and CE as a secondary layer for the first time. Surface studies shows the importance of both type of silicates as primary layer to achieve the desired superhydrophobicity along with secondary CE layer. Among the silicates, the in-situ SiO<sub>2</sub>/CE has offered slightly higher water contact angle (WCA-156°) compared to ex-situ SBA-15/CE (WCA-152°). Finally, both LBL assembled ex situ 7% SBA-15/CE and in-situ 7% SiO<sub>2</sub>/CE were tested for their separation behaviour using petrol-water mixture. The separating efficiency for both systems were greater than 99.5%, while in case of flux in-situ 7% SiO<sub>2</sub>/CE fabric dominates (18,500 L/m<sup>2</sup>h). The retention of porous texture of cotton while using the in-situ SiO<sub>2</sub> coating enables superior flux nature. Thus, the outcomes of the present work enable more future research in order to explore different inorganic additives and bio-based polymers towards commercialization of cotton fabric membranes.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Layer by Layer Assembled Silica and Cardanol Epoxy Modified Durable Cotton Fabric for Oil–Water Separation Application

  • 期刊论文

  • 发表日期：

    2025年6月10日

查看全文
  • Srinithi Jeyachandran,
  • Prabunathan Pichaimani,
  • Selvakumar Gopalsamy,
  • Thirumarimurugan Marimuthu

摘要

Here, two types of silicates (ex-situ SBA-15 and in-situ SiO2) were employed along with cardanol epoxy (CE) separately to perform the organic–inorganic hybrid coating over cotton via layer by layer (LBL) approach and compared. The silicates were preferred as primary layer along with silane cross-linkers and CE as a secondary layer for the first time. Surface studies shows the importance of both type of silicates as primary layer to achieve the desired superhydrophobicity along with secondary CE layer. Among the silicates, the in-situ SiO2/CE has offered slightly higher water contact angle (WCA-156°) compared to ex-situ SBA-15/CE (WCA-152°). Finally, both LBL assembled ex situ 7% SBA-15/CE and in-situ 7% SiO2/CE were tested for their separation behaviour using petrol-water mixture. The separating efficiency for both systems were greater than 99.5%, while in case of flux in-situ 7% SiO2/CE fabric dominates (18,500 L/m2h). The retention of porous texture of cotton while using the in-situ SiO2 coating enables superior flux nature. Thus, the outcomes of the present work enable more future research in order to explore different inorganic additives and bio-based polymers towards commercialization of cotton fabric membranes.