Preparation of proton exchange membrane by radiation-induced grafting of PVDF film

GAO Jinjin; LI Xue; ZHAO Yubin; LI Weiwei; ZHAO Yang; WANG Shubo; XIE Xiaofeng; ZHANG Zhenlin

doi:10.11949/j.issn.0438-1157.20160654

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Preparation of proton exchange membrane by radiation-induced grafting of PVDF film

更新时间：2025-12-10

- Preparation of proton exchange membrane by radiation-induced grafting of PVDF film
- CIESC Journal Issue S1, Pages: 384-389(2016)
- 作者机构：
  
  1. 燕山大学亚稳材料制备技术与科学国家重点实验室,河北,秦皇岛,066004
  2. 清华大学核能与新能源技术研究院,北京,100084
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20160654
  CLC： M911.4
- Online First：31 August 2016，
  
  Published：31 August 2016
- 稿件说明：
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GAO Jinjin, LI Xue, ZHAO Yubin, et al. Preparation of proton exchange membrane by radiation-induced grafting of PVDF film[J]. CIESC Journal, 2016, (S1): 384-389.
DOI：

GAO Jinjin, LI Xue, ZHAO Yubin, et al. Preparation of proton exchange membrane by radiation-induced grafting of PVDF film[J]. CIESC Journal, 2016, (S1): 384-389. DOI： 10.11949/j.issn.0438-1157.20160654.

摘要

含氟磺酸型质子交换膜是一类具有高热稳定性、化学稳定性及良好力学性能的离子交换膜，具有极其广阔的应用前景。采用60Co辐照接枝技术，在聚偏氟乙烯（PVDF）基膜上产生自由基聚合位点，进而接枝对苯乙烯磺酰氯单体，经过一定条件酸碱处理得到一种新型偏氟磺酸型质子交换膜。并对其进行红外分析，结果显示PVDF膜上成功接枝上了对苯乙烯磺酰氯单体；定量研究了在相同辐照总剂量、不同剂量率条件下，所得质子交换膜的质子传导率、吸水率及离子交换容量与接枝率的关系，结果表明：当剂量率为40 Gy·min-1时，所得质子交换膜接枝率为52.7%，吸水率为36.85%，80℃时质子传导率达到136 mS·cm-1，离子交换容量为1.274 mmol·g-1。

Abstract

Sulfonated proton exchange membrane is a kind of ion exchange membrane with high thermal stability

chemical stability and good mechanical properties

having extremely broad application prospects. Numerous free radicals can be generated when the poly(vinylidene fluoride)(PVDF) membrane was irradiated by 60Co γ-source

acting as active sites for the graft of 4-sulfonyl chloride vinylbenzene monomer

thus the proton exchange membrane can be prepared by subsequent alkaline and acid treatment. And the structures of the monomer

the original PVDF and grafted PVDF membrane were confirmed by FT-IR spectra

indicating that the monomer had been successfully grafted into PVDF membrane. This proton exchange membrane shows good thermal stability

also can meet the requirement of the temperature of proton exchange membrane fuel cells. The relationship of the proton conductivity

water uptake

ionic exchange capacity with degree of graft at different does rate but same total does were studied. The results showed that when the does rate was 40 Gy·min-1

the degree of graft of the membrane was 52.7%

ionic exchange capacity was 1.274 mmol·g-1

water uptake was 36.85% and conductivity was 136 mS·cm-1 at 80℃.

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