EFFECT OF THE GRAFTING OF ACRYLIC ACID ON STRUCTURE AND PROPERTIES OF ORIENTED POLYTETRAFLUOROETHYLENE

Liang Shuxiang; Zhou Shiyi

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EFFECT OF THE GRAFTING OF ACRYLIC ACID ON STRUCTURE AND PROPERTIES OF ORIENTED POLYTETRAFLUOROETHYLENE

更新时间：2023-04-26

- EFFECT OF THE GRAFTING OF ACRYLIC ACID ON STRUCTURE AND PROPERTIES OF ORIENTED POLYTETRAFLUOROETHYLENE
- Journal of Radiation Research and Radiation Processing Vol. 14, Issue 2, Pages: 78-82(1996)
- 作者机构：
  
  1.化工部成都有机硅研究中心，化工部晨光化工研究院，成都 610041
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Liang Shuxiang, Zhou Shiyi. EFFECT OF THE GRAFTING OF ACRYLIC ACID ON STRUCTURE AND PROPERTIES OF ORIENTED POLYTETRAFLUOROETHYLENE. [J]. Journal of Radiation Research and Radiation Processing 14(2):78-82(1996)
DOI：

Liang Shuxiang, Zhou Shiyi. EFFECT OF THE GRAFTING OF ACRYLIC ACID ON STRUCTURE AND PROPERTIES OF ORIENTED POLYTETRAFLUOROETHYLENE. [J]. Journal of Radiation Research and Radiation Processing 14(2):78-82(1996) DOI：

摘要

用光学显微镜、电子显微镜、X射线衍射等方法对不同拉伸度聚四氟乙烯（PTFE）,和对其γ辐射接技丙烯酸（AA）接枝共聚物的结构进行了研究。结果表明，未接枝取向的PTFE，在γ射线辐照下产生大小不等的空穴，接枝丙烯酸填充在这些空穴中，形成粒状分散相微区结构，接枝量增大形成接枝链束，而使双折射增加。并对接枝共聚物结构和性能关系进行了讨论。

Abstract

Structures and properties of the gamma-radiation induced graft coplymerization of acrylic acid (AA) to oriented polytetraf1uoroethylene (PTFE)were investigated with electron-optical microscope and X-ray diffraction. When AA is grafted onto oriented PTFE the birefringence (Δn) is found to be greater than that of the initial oriented specimen. It has been suggested that the grafting takes place in the submicro voids formed during the cold drawing of the PTFE. For a grafted AA content exceeding 75% violation of the chain orientation in the PTFE takes place owing to filling in all the submicro voids with the grafted polymer, affecting the dependence of Δn on the amount of the grafted AA. The structures and properties of absorbent water of the grafted copolymer was also discussed.

关键词

聚四氟乙烯取向γ辐射结构性能

Keywords

PolytetrafluoroethyleneOrientationGamma-radiationStructureProperty

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Shanghai Changyuan Electronic Materials Co., Ltd.

Hunan Institute of Nuclear Agricultural Science and Space Mutation Breeding, Hunan Academy of Agricultural Sciences/Hunan Province Engineering Technology Research Center of Agricultural Biological Irradiation

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