Study on the gamma-radiation induced graft copolymerization of acrylic acid to polytetrafluoroethylene

Heming Chen; Rongbao Tang; Guifang Zhang; Meilan Sha

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Study on the gamma-radiation induced graft copolymerization of acrylic acid to polytetrafluoroethylene

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- Study on the gamma-radiation induced graft copolymerization of acrylic acid to polytetrafluoroethylene
- Nuclear Techniques Vol. 06, Issue 2, (1983)
- 作者机构：
  
  晨光化工研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：21 August 1981，
  
  Published：1983-04
- 稿件说明：
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Heming Chen, Rongbao Tang, Guifang Zhang, et al. Study on the gamma-radiation induced graft copolymerization of acrylic acid to polytetrafluoroethylene[J]. Nuclear techniques, 1983, 06(2): 14-18,72,73.
DOI：

Heming Chen, Rongbao Tang, Guifang Zhang, et al. Study on the gamma-radiation induced graft copolymerization of acrylic acid to polytetrafluoroethylene[J]. Nuclear techniques, 1983, 06(2): 14-18,72,73. DOI：

摘要

聚四氟乙烯（以下简称F

）具有优良的机械性能和热稳定性及化学稳定性，以它为基材而制得的离子交换膜具有较理想的性能。由于F

耐氧化，不为任何已知的溶剂溶胀，若采用热化学法来实现F

接枝改性是十分困难的，因此，F

辐射接枝改性是一个极为有效的途径。

Abstract

Acrylic acid was grafted onto a 0.02~0.03mm thick polytetrafluoroethylene (PTFE)film by irradiation. The effect of monomer concentration

dose

dose rate and temperature on the grafting was investigated. The results suggested that the rate of graft polymerization increased with the monomer concentration. Specific electric resistance of the grafted film

dimensional changes

water absorption were dependent only on the grafted amount

but not on the irradiation conditions. The relationship between the specific electric resistance and the grafted amount of the grafted film was calculated by empiric formula: PG

1.2696

=2857 where

P is the specific electric resistance and G is the percentage of grafted amount. At a higher dose rate

the kinetic curves show a self-acceleration. At a lower dose rate

the kinetic curves tend to saturation

with no critical irradiation intensity.

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Keywords

references

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A. Chapiro et al . , Eur. Polym. J ., 7 , 1595 ( 1971 ).

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A. Chapiro et al . , Adv. Chem. Ser ., 91 , 560 ( 1969 ).

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晨光化工厂，辐射化学，原子能出版社， 1977 年，第 69 页．

手表电池企业标准（草案），第七次手表电池技术交流会，北京， 1979 年．

天津干电池厂，扣式电池试验总结， 1979 年．

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