CAJ | 학술논문

采用溶液接枝法合成了离子液体接枝型纳米二氧化硅(IL-SiO 2)，并利用浸没沉淀相转化法制备了聚偏氟乙烯/离子液体接枝型纳米二氧化硅(PVDF/IL-SiO 2)杂化膜，考察了IL-SiO 2含量对杂化膜性能的影响。采用流动电位、接触角和水通量等手段分析研究了杂化膜的性能。研究结果表明，PVDF/IL-SiO 2杂化膜表面带有正电荷；IL-SiO 2的加入显著提高了杂化膜的亲水性、拉伸强度和断裂伸长率；杂化膜纯水通量显著增加的同时，对蛋白质的吸附量和截留率均有一定程度上的提高。
채용용액접지법합성료리자액체접지형납미이양화규(IL-SiO 2)，병이용침몰침정상전화법제비료취편불을희/리자액체접지형납미이양화규(PVDF/IL-SiO 2)잡화막，고찰료IL-SiO 2함량대잡화막성능적영향。채용류동전위、접촉각화수통량등수단분석연구료잡화막적성능。연구결과표명，PVDF/IL-SiO 2잡화막표면대유정전하；IL-SiO 2적가입현저제고료잡화막적친수성、랍신강도화단렬신장솔；잡화막순수통량현저증가적동시，대단백질적흡부량화절류솔균유일정정도상적제고。
An ionic liquid grafted nano-SiO2 (IL-SiO2) was synthesized by solution grafting and then the hybrid membranes (PVDF/IL-SiO2) with different contents of IL-SiO2 were preparedvia an immersion precipitation phase inversion process. The influence of IL-SiO2 content on hybrid membrane performance was studied and these hybrid membranes were further characterized by streaming potential testing, contact angle and water permeation. The results indicate that these hybrid membranes are positively charged and the addition of IL-SiO2 significantly improves the hydrophilicity, tension strength and elongation break of the membrane. The pure water flux (PWF) of the hybrid membrane increases with the increase of IL-SiO2 dosage and the BSA (Bovin Serum Albumin) static adsorption rejection also increases.