热致相分离法制备聚偏氟乙烯膜亲水改性研究进展

doi:10.11894/iwt.2020-0272

摘要/Abstract

摘要：

采用热致相分离（TIPS）法制备的PVDF微孔膜具有高孔隙率、大通量、高机械强度等特点，已广泛应用于饮用水净化、污/废水处理等领域。但由于PVDF本身的疏水性，极易造成膜污染。频繁的化学清洗不仅会增加运行成本，也会降低膜的使用寿命。因此，对PVDF膜进行亲水化改性有十分重要的意义。全面介绍了TIPS法PVDF微孔膜亲水化改性的方法，并对其未来的发展及应用进行了展望。

关键词: 聚偏氟乙烯, 热致相分离法, 亲水化改性, 本体改性, 后处理改性

Abstract:

The polyvinylidene fluoride(PVDF) microporous membrane prepared via thermally induced phase separation(TIPS) method has the characteristics of high porosity, high flux and excellent mechanical strength, which has been widely used in the fields of drinking water purification and sewage treatment. However, due to the hydrophobicity of PVDF material, the PVDF microporous membrane is easily fouled. Frequent chemical cleaning not only results in higher operating cost but also shortens the lifetime of the membrane. Therefore, the hydrophilicity modification for PVDF membrane has important meanings. The hydrophilic modification methods of PVDF microporous membranes prepared via TIPS method were introduced comprehensively. Furthermore, its future development and application were prospected.

Key words: polyvinylidene fluoride, thermally induced phase separation, hydrophilic modification, bulk modification, post-treatment modification

中图分类号:

TB383

金宇涛,林亚凯,田野,何柳东,张景隆,胡君. 热致相分离法制备聚偏氟乙烯膜亲水改性研究进展[J]. 工业水处理, 2021, 41(2): 26-32, 37.

Yutao Jin,Yakai Lin,Ye Tian,Liudong He,Jinglong Zhang,Jun Hu. Research progress on hydrophilic modification of polyvinylidene fluoride microporous membranes prepared via thermally induced phase separation method[J]. Industrial Water Treatment, 2021, 41(2): 26-32, 37.

https://www.iwt.cn/CN/Y2021/V41/I2/26

图/表 3

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参考文献	膜类型	添加剂	稀释剂	改性前后接触角/（°）	改性前后拉伸强度/MPa	改性前后抗污染性	改性前后截留率/%
〔13〕	平板膜	PVA	CPL	86.5/57	1.7/0.8	—	—
〔14〕	平板膜	PU	DMAc/DMP	85.71/66.46	3.47/6.36	—	对BSA：92/79
〔15〕	中空纤维膜	EVOH	GTA/TEG	78/43	3.44/13.63	—	对BSA：55.71/68.69
〔16〕	中空纤维膜	PEG	DMAc/γ-BL	—	—/4.59	—	—
〔17〕	平板膜	PEG	TEP	—	2.39/3.12	—	对碳素墨水：100/100
〔18〕	中空纤维膜	PVB	PC	85.8/77	5.97/8	对BSA污染通量恢复率：30.4%/65%	对BSA：11.78/12.5
〔19〕	平板膜	PES-C	DPC/DMAc	72.6/63.2	—	—	—
〔20〕	平板膜	PSF	DEDB/DBP	108/102	—	—	对碳素墨水：98.2/97.9
〔21〕	平板膜	PSMA	ATBC	112/81	—	—	对BSA：48/94
〔22-23〕	中空纤维膜	TD-A	DPK/PG	88.1/62	2.95/2.65	对BSA吸附量（μg/cm²）：789.1/472.2	—
〔24〕	中空纤维膜	p（MMA-MPDSAH）	DEP	79/45	—	对BSA吸附量（mg/m²）：3.6/1.6	—
〔25〕	中空纤维膜	p（MMA-MPDSAH）	DEP	79/65	—	对BSA吸附量（mg/m²）：3.1/1.7	—
〔27〕	平板膜	SiO₂	DBP	—	3.66/4.63	对BSA污染通量恢复率：11.7%/93.8%	—
〔28〕	平板膜	SiO₂	DMSO₂	131/101	2.8/3.4	—	—
〔31〕	平板膜	TiO₂	DMP/DOP	123/86	—	—	—
〔32〕	平板膜	GO	DBP	108/85	—	对BSA吸附量（μg/cm²）：138.7/74.7	对BSA：63.5/91.7
〔33〕	平板膜	O-MWCNT	DBP	101.6/71.8	0.99/0.86	—	对BSA：5.6/72.3
〔34〕	平板膜	MWCNT-OH	DBP	105/80	1.7/2.7	—	对PEG10000：60/69

参考文献	膜类型	添加剂	稀释剂	改性前后接触角/（°）	改性前后拉伸强度/MPa	改性前后抗污染性	改性前后截留率/%
〔13〕	平板膜	PVA	CPL	86.5/57	1.7/0.8	—	—
〔14〕	平板膜	PU	DMAc/DMP	85.71/66.46	3.47/6.36	—	对BSA：92/79
〔15〕	中空纤维膜	EVOH	GTA/TEG	78/43	3.44/13.63	—	对BSA：55.71/68.69
〔16〕	中空纤维膜	PEG	DMAc/γ-BL	—	—/4.59	—	—
〔17〕	平板膜	PEG	TEP	—	2.39/3.12	—	对碳素墨水：100/100
〔18〕	中空纤维膜	PVB	PC	85.8/77	5.97/8	对BSA污染通量恢复率：30.4%/65%	对BSA：11.78/12.5
〔19〕	平板膜	PES-C	DPC/DMAc	72.6/63.2	—	—	—
〔20〕	平板膜	PSF	DEDB/DBP	108/102	—	—	对碳素墨水：98.2/97.9
〔21〕	平板膜	PSMA	ATBC	112/81	—	—	对BSA：48/94
〔22-23〕	中空纤维膜	TD-A	DPK/PG	88.1/62	2.95/2.65	对BSA吸附量（μg/cm²）：789.1/472.2	—
〔24〕	中空纤维膜	p（MMA-MPDSAH）	DEP	79/45	—	对BSA吸附量（mg/m²）：3.6/1.6	—
〔25〕	中空纤维膜	p（MMA-MPDSAH）	DEP	79/65	—	对BSA吸附量（mg/m²）：3.1/1.7	—
〔27〕	平板膜	SiO₂	DBP	—	3.66/4.63	对BSA污染通量恢复率：11.7%/93.8%	—
〔28〕	平板膜	SiO₂	DMSO₂	131/101	2.8/3.4	—	—
〔31〕	平板膜	TiO₂	DMP/DOP	123/86	—	—	—
〔32〕	平板膜	GO	DBP	108/85	—	对BSA吸附量（μg/cm²）：138.7/74.7	对BSA：63.5/91.7
〔33〕	平板膜	O-MWCNT	DBP	101.6/71.8	0.99/0.86	—	对BSA：5.6/72.3
〔34〕	平板膜	MWCNT-OH	DBP	105/80	1.7/2.7	—	对PEG10000：60/69

参考文献	膜类型	处理手段	改性前后接触角/（°）	改性前后拉伸强度/MPa	改性前后抗污染性	改性前后截留率/%
〔38〕	平板膜	涂覆多巴胺	107.7/62	1.7/4.0	油水分离试验通量恢复率：76.7%/89.9%	—
〔39〕	平板膜	喷涂多巴胺、PEI	131/10.1	—	—	对甲苯：88/97
〔40〕	中空纤维膜	交联PVP	90/77	—	对BSA污染通量恢复率：68%/84%	—
〔42〕	中空纤维膜	接枝HEMA、MPDSAH	87.5/22.1	4.1/4.1	对BSA污染通量恢复率：42.4%/95.3%；对BSA吸附量（μg/cm2）：21/0	—
〔44〕	中空纤维膜	接枝HEMA、MEDSA	—/61.96	—/4.316	对BSA不可逆污染率：31.2%/1.4%；对BSA吸附量（μg/cm2）：205.1/111.4	—

参考文献	膜类型	处理手段	改性前后接触角/（°）	改性前后拉伸强度/MPa	改性前后抗污染性	改性前后截留率/%
〔38〕	平板膜	涂覆多巴胺	107.7/62	1.7/4.0	油水分离试验通量恢复率：76.7%/89.9%	—
〔39〕	平板膜	喷涂多巴胺、PEI	131/10.1	—	—	对甲苯：88/97
〔40〕	中空纤维膜	交联PVP	90/77	—	对BSA污染通量恢复率：68%/84%	—
〔42〕	中空纤维膜	接枝HEMA、MPDSAH	87.5/22.1	4.1/4.1	对BSA污染通量恢复率：42.4%/95.3%；对BSA吸附量（μg/cm2）：21/0	—
〔44〕	中空纤维膜	接枝HEMA、MEDSA	—/61.96	—/4.316	对BSA不可逆污染率：31.2%/1.4%；对BSA吸附量（μg/cm2）：205.1/111.4	—

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