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首页> 外文期刊>Journal of Applied Polymer Science >Superhydrophobic-superoleophilic electrospun nanofibrous membrane modified by the chemical vapor deposition of dimethyl dichlorosilane for efficient oil-water separation
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Superhydrophobic-superoleophilic electrospun nanofibrous membrane modified by the chemical vapor deposition of dimethyl dichlorosilane for efficient oil-water separation

机译：通过二甲基二氯硅烷的化学气相沉积改性超疏水 - 超级电泳型纳米纤维，用于有效的油水分离

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摘要

Superhydrophobic and superoleophilic functionalized electrospun poly(vinylidene fluoride) (PVDF) membranes with water repellence, breathability, and oil-sorption and oil-water separation properties were achieved with a combination of an electrospinning technique and the chemical vapor deposition of dichlorodimethyl silane. The samples were laterally characterized by scanning electron microscopy, atomic force microscopy, water contact angle measurement, and Fourier transform infrared spectroscopy. The maximum water contact angle value was 152.0 +/- 2.5 degrees for the PVDF nanofibrous membranes with 500 mu L of deposited silane (PMS2) obtained under certain conditions. The PMS2 membranes showed 100.0, 93.7, 23.3, 35.0, and 100.0% separation efficiencies for n-hexane, kerosene, crude oil, frying oil, and toluene, respectively. The understudy membrane exhibited reasonable waterproofness and remarkable breathability (water vapor transition rate = 215.21 g/m(2).h). Moreover, the superhydrophobic and superoleophilic nanofibrous membranes also showed good reusability, stability, moderate water-repellent properties, breathability, antifouling properties, and oil-water separation ability after several cycles. These properties confirmed potential in feasible applications, including protective cloths and in the purification of oil-polluted water. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47621.
机译：超疏水性和superoleophilic官能静电聚（偏二氟乙烯）（PVDF）膜与防水性，透气性，和油吸附和油 - 水分离性能进行了与静电纺丝技术的组合和二氯二甲基硅烷的化学气相沉积来实现的。对样品进行横向的特征在于扫描电子显微镜，原子力显微镜，水接触角测定，傅里叶变换红外光谱。最大水接触角值与500亩信用证项下一定的条件下得到的析出硅烷（PMS2）的PVDF纳米纤维膜152.0 +/- 2.5度。所述PMS2膜分别显示100.0，93.7，23.3，35.0，和100.0％的分离效率为正己烷，煤油，原油，煎炸油，和甲苯。所述替补膜显示出合理的防水性和显着的透气性（水蒸气转变率=215.21克/ M（2）.h）中。此外，超疏水和superoleophilic纳米纤维膜也表现出良好的可重用性，稳定性，适度的防水性，透气性，防污性能，和油 - 水分离的能力几个周期后。这些性质在可行的应用，包括保护布和在油中污染水的纯化证实潜力。 （c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019年，136，47621。

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