| 聚偏氟乙烯/磷酸化纳米二氧化硅螯合金属锆杂化膜 |
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| 引用本文： | 孙俊芬,张逸飞,陈龙.聚偏氟乙烯/磷酸化纳米二氧化硅螯合金属锆杂化膜[J].东华大学学报(自然科学版),2020(2):182-187,201. |
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| 作者姓名： | 孙俊芬 张逸飞 陈龙 |
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| 作者单位： | 东华大学材料科学与工程学院;东华大学纤维材料改性国家重点实验室 |
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| 基金项目： | “十三五”国家重点研发计划资助项目(2016YFB0302600)。 |
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| 摘 要： | 结合原位合成法和相转化法,利用正硅酸乙酯(TEOS)和硅烷偶联剂3氨丙基三乙氧基硅烷(APTES)改性制备聚偏氟乙烯(PVDF)/氨基化纳米二氧化硅(NH 2-SiO 2)杂化膜,然后通过磷酸化处理,固定螯合金属锆(Zr),从而提高杂化膜对卵清蛋白的吸附能力,同时改善了杂化膜的亲水性能。当TEOS质量分数为8%时,改性后的磷酸化Zr+PVDF/NH 2-SiO 2杂化膜对卵清蛋白吸附量达到最大,为150.7 mg/g,且其经过4次吸附洗脱重复循环后对卵清蛋白的解吸附率保持在80%以上,显示该杂化膜具有良好的重复吸附和解吸附能力。
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| 关 键 词： | 聚偏氟乙烯 杂化膜 硅烷偶联剂 磷酸化 固定金属螯合 |
Polyvinylidene Fluoride/Amino Nano-silica Hybrid Membranes Chelated Zirconium |
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| SUN Junfen,ZHANG Yifei,CHEN Long.Polyvinylidene Fluoride/Amino Nano-silica Hybrid Membranes Chelated Zirconium[J].Journal of Donghua University,2020(2):182-187,201. |
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| Authors: | SUN Junfen ZHANG Yifei CHEN Long |
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| Institution: | (College of Materials Science and Engineering,Donghua University,Shanghai 201620,China;State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Donghua University,Shanghai 201620,China) |
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| Abstract: | Through in situ synthesis and phase transformation,polyvinylidene fluoride(PVDF)/amino nano-silica(NH 2-SiO 2)hybrid membranes were modified by tetraethyl orthosilicate(TEOS)and silane coupling agent 3-aminopropyl triethoxysilane(APTES).Then,the prepared membrane was phosphorylated and chelated alloy zirconium(Zr)to improve its adsorption capacity to ovalbumin.The hydrophilicity of the hybrid membrane was improved.When the mass fraction of TEOS was 8%,the adsorption capacity of phosphorylated Zr+PVDF/NH 2-SiO 2 hybrid membrane to ovalbumin reached the maximum,which was 150.7 mg/g.After four adsorption-elution cycles,the desorption rate of ovalbumin remained above 80%,which indicated that the hybrid membrane had good repetitive adsorption and desorption ability. |
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| Keywords: | polyvinylidene fluoride hybrid membrane silane coupling agent phosphorylation metal chelation |
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