Abstract Graphene oxide (GO) was introduced in this study as a hydrophilic enhancer to polyether block amide copolymer (PEBAX) in the form of thin film nanocomposite (TFNC) for hydrophobic based polysulfone (PSF) membrane. The objective is to increase hydrophilic moieties by providing more polar terminal within the TFNC network and by doing so, the film managed to completely reduce IPA traces in the permeate from 0.8 wt % while maintaining a constant flux of 1.2 kg/m2h. SEM, FTIR and water contact angle was used to characterized the produced film. The contact angle was also reduced from 77.5° to 37.48°, indicating the increment of hydrophilicity of the film. Interestingly, the GO incorporated film could take up to 38.02% of water, proving a possibility for this TFNC to be used in pervaporation.

中文翻译：

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氧化石墨烯嵌入薄膜纳米复合材料对聚砜膜的亲水性增强用于异丙醇脱水

摘要 本研究中引入氧化石墨烯 (GO) 作为聚醚嵌段酰胺共聚物 (PEBAX) 的亲水增强剂，以薄膜纳米复合材料 (TFNC) 的形式用于疏水性聚砜 (PSF) 膜。目标是通过在 TFNC 网络中提供更多极性末端来增加亲水性部分，通过这样做，薄膜设法将渗透物中的 IPA 痕量从 0.8 wt% 完全减少，同时保持 1.2 kg/m2h 的恒定通量。SEM、FTIR 和水接触角用于表征生产的薄膜。接触角也从77.5°降低到37.48°，表明薄膜亲水性增加。有趣的是，掺入 GO 的薄膜最多可吸收 38.02% 的水，证明这种 TFNC 有可能用于渗透蒸发。