Preparation of Lateral Flow PVDF Membrane via Combined Vapor- and Non-Solvent-Induced Phase Separation (V-NIPS)

A large pore size Poly(vinylidene fluoride) (PVDF) membrane was prepared by the V-NIPS method using PVDF/N, N-dimethylacetamide (DMAc)/Polyvinyl pyrrolidone (PVP)/Polyethylene glycol (PEG) system. Firstly, the effect of different additive ratios on the membrane morphology and pore size was studied,...

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Main Authors: Xiaoyun Wang, Dejian Chen, Ting He, Yue Zhou, Li Tian, Zhaohui Wang, Zhaoliang Cui
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Membranes
Subjects:
Online Access:https://www.mdpi.com/2077-0375/13/1/91
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author Xiaoyun Wang
Dejian Chen
Ting He
Yue Zhou
Li Tian
Zhaohui Wang
Zhaoliang Cui
author_facet Xiaoyun Wang
Dejian Chen
Ting He
Yue Zhou
Li Tian
Zhaohui Wang
Zhaoliang Cui
author_sort Xiaoyun Wang
collection DOAJ
description A large pore size Poly(vinylidene fluoride) (PVDF) membrane was prepared by the V-NIPS method using PVDF/N, N-dimethylacetamide (DMAc)/Polyvinyl pyrrolidone (PVP)/Polyethylene glycol (PEG) system. Firstly, the effect of different additive ratios on the membrane morphology and pore size was studied, and it was found that when the PVP:PEG ratio was 8:2, PVDF membranes with a relatively large pore size tend to be formed; the pore size is about 7.5 µm. Then, the effects of different exposure time on the membrane morphology and pore size were investigated, and it was found that as the vapor temperature increased, the pores on the surface of the membrane first became slightly smaller and then increased. Finally, the effects of different vapor temperatures on the membrane properties were discussed. The results showed that the as-prepared membrane exhibited suitable capillary flow rate and similar performance compared with a commercially available membrane in colloidal gold tests. The likely cause is that the amount of negative charge is less and the capillary migration rate is too fast. This paper provides a reference for the preparation of PVDF colloidal gold detection membrane.
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spelling doaj.art-3746af0c82d9425db205cfd9227afb002023-11-30T23:27:05ZengMDPI AGMembranes2077-03752023-01-011319110.3390/membranes13010091Preparation of Lateral Flow PVDF Membrane via Combined Vapor- and Non-Solvent-Induced Phase Separation (V-NIPS)Xiaoyun Wang0Dejian Chen1Ting He2Yue Zhou3Li Tian4Zhaohui Wang5Zhaoliang Cui6State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, ChinaState Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, ChinaState Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, ChinaState Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, ChinaNanjing Jiuying Membrane Technologies Co., Ltd., Nanjing 211899, ChinaState Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, ChinaState Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, ChinaA large pore size Poly(vinylidene fluoride) (PVDF) membrane was prepared by the V-NIPS method using PVDF/N, N-dimethylacetamide (DMAc)/Polyvinyl pyrrolidone (PVP)/Polyethylene glycol (PEG) system. Firstly, the effect of different additive ratios on the membrane morphology and pore size was studied, and it was found that when the PVP:PEG ratio was 8:2, PVDF membranes with a relatively large pore size tend to be formed; the pore size is about 7.5 µm. Then, the effects of different exposure time on the membrane morphology and pore size were investigated, and it was found that as the vapor temperature increased, the pores on the surface of the membrane first became slightly smaller and then increased. Finally, the effects of different vapor temperatures on the membrane properties were discussed. The results showed that the as-prepared membrane exhibited suitable capillary flow rate and similar performance compared with a commercially available membrane in colloidal gold tests. The likely cause is that the amount of negative charge is less and the capillary migration rate is too fast. This paper provides a reference for the preparation of PVDF colloidal gold detection membrane.https://www.mdpi.com/2077-0375/13/1/91Poly(vinylidene fluoride)vapor non-solvent-induced phase separationdetection of colloidal goldcapillary flow rate
spellingShingle Xiaoyun Wang
Dejian Chen
Ting He
Yue Zhou
Li Tian
Zhaohui Wang
Zhaoliang Cui
Preparation of Lateral Flow PVDF Membrane via Combined Vapor- and Non-Solvent-Induced Phase Separation (V-NIPS)
Membranes
Poly(vinylidene fluoride)
vapor non-solvent-induced phase separation
detection of colloidal gold
capillary flow rate
title Preparation of Lateral Flow PVDF Membrane via Combined Vapor- and Non-Solvent-Induced Phase Separation (V-NIPS)
title_full Preparation of Lateral Flow PVDF Membrane via Combined Vapor- and Non-Solvent-Induced Phase Separation (V-NIPS)
title_fullStr Preparation of Lateral Flow PVDF Membrane via Combined Vapor- and Non-Solvent-Induced Phase Separation (V-NIPS)
title_full_unstemmed Preparation of Lateral Flow PVDF Membrane via Combined Vapor- and Non-Solvent-Induced Phase Separation (V-NIPS)
title_short Preparation of Lateral Flow PVDF Membrane via Combined Vapor- and Non-Solvent-Induced Phase Separation (V-NIPS)
title_sort preparation of lateral flow pvdf membrane via combined vapor and non solvent induced phase separation v nips
topic Poly(vinylidene fluoride)
vapor non-solvent-induced phase separation
detection of colloidal gold
capillary flow rate
url https://www.mdpi.com/2077-0375/13/1/91
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