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首页> 外文期刊>Journal of Applied Polymer Science >Oil-absorbent polyurethane sponge coated with KH-570-modified graphene
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Oil-absorbent polyurethane sponge coated with KH-570-modified graphene

机译：涂有KH-570改性石墨烯的吸油性聚氨酯海绵

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Polyurethane (PU) sponge has become a preferred oil adsorbent in recent oil-spill accidents. To make the sponge superhydrophobicand superoleophilic, this study used graphene (GN), which was modified with gamma-methacryloxypropyl trimethoxy silane (KH-570), to coat the PU sponge (called the KH-GN sponge). This study showed the best loading capacity (11.96%) of the KH-570-modified GN on the sponge. The contact angles of the KH-GN PU sponge were 161 degrees for water and 0 degrees for soybean, diesel, and pumping oil. It had good selectivity for oil over water, and the KH-GN sponge achieved adsorption equilibrium within a few seconds. The absorption capability of the KH-GN sponge was up to 39 times greater, Additionally, the KH-GN sponge could be reused for oil-water separation for more than 120 cycles without losing its superhydrophobic and superoleophilic properties. Therefore the sponge prepared in this study could be a desirable material for the cleanup of oil spills. 2015 Wiley Periodicals, Inc.
机译：在最近的溢油事故中，聚氨酯海绵已成为首选的吸油剂。为了使海绵具有超疏水性和超亲油性，本研究使用了石墨烯（GN），并用γ-甲基丙烯酰氧基丙基三甲氧基硅烷（KH-570）对其进行了改性，以涂覆PU海绵（称为KH-GN海绵）。这项研究表明，KH-570改性GN在海绵上的最佳负载能力（11.96％）。 KH-GN PU海绵的水接触角为161度，大豆，柴油和抽油机油的接触角为0度。它对水的油具有很好的选择性，并且KH-GN海绵在几秒钟内达到了吸附平衡。 KH-GN海绵的吸收能力高达39倍，此外，KH-GN海绵可重复用于油水分离超过120个循环，而不会失去其超疏水和超亲油性。因此，本研究中准备的海绵可能是清除溢油的理想材料。 2015年Wiley Periodicals，Inc.

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