水道水残留塩素に侵されるEPDMパッキンの劣化メカニズム  [in Japanese] The Degradation Mechanism of EPDM Packing by Chlorine in City Water  [in Japanese]

Access this Article

Search this Article

Author(s)

Abstract

In order to elucidate the degradation mechanism of EPDM rubber caused by a amount of chlorine in city water, EPDM rubbers containing 2 kinds of carbon black (ie. HAF and FT) were employed and corroded in chlorine water, Their morphology changes before and after degradation were observed by SEM. The effect of the amount of moisture Was examined by EPMA. The degradation mechanism was studied by XPS and <sup>13</sup>C-NMR. The EPDM rubber loaded HAF was easier to absorb chlorine and to be deteriorated than the one loaded FT. As a result of XPS measurement, Cl (2p) peak was detected from the sample after degradation treatment. <sup>13</sup>C-NMR measurement revealed that the methyl group of diene side chain of EPDM rubber was changed into the chlorinated methyl group. It was thought that as the chlorinated methyl group reacted with the other molecular chains of EPDM rubber, the crosslinking density increased. Therefore, the degraded EPDM rubber was brittle, collapsed and fell off.

Journal

  • NIPPON GOMU KYOKAISHI

    NIPPON GOMU KYOKAISHI 75(7), 313-317, 2002-07-15

    THE SOCIRETY OF RUBBER SCIENCE AND TECHNOLOGYY, JAPAN

References:  8

  • <no title>

    渡辺茂隆

    日ゴム協誌 34, 594, 1961

    Cited by (1)

  • <no title>

    渡辺茂隆

    日ゴム協誌 34, 601, 1961

    Cited by (1)

  • <no title>

    渡辺茂隆

    日ゴム協誌 34, 676, 1961

    Cited by (1)

  • <no title>

    渡辺茂隆

    日ゴム協誌 34, 683, 1961

    Cited by (1)

  • <no title>

    前田守一

    日ゴム協誌 46, 672, 1973

    Cited by (1)

  • <no title>

    GROSS D.

    Kautsch Gummi Kunstst 33, 997, 1980

    Cited by (2)

  • <no title>

    大武義人

    材料トラブル調査ファイル 68, 1999

    Cited by (1)

  • <no title>

    GROSS D.

    Kautsch Gummi Kunstst 34, 464, 1981

    Cited by (3)

Cited by:  2

Codes

  • NII Article ID (NAID)
    10008834827
  • NII NACSIS-CAT ID (NCID)
    AN00189720
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    0029022X
  • NDL Article ID
    6218094
  • NDL Source Classification
    ZP17(科学技術--化学・化学工業--高分子化学・高分子化学工業--ゴム・プラスチックス)
  • NDL Call No.
    Z17-125
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
Page Top