Weathering Evaluation of Ionomer Resin Using for Coated-Iron Wire for Cage-type Revetment (First Report)

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  • FUJIMOTO Kunizou
    Towaron Co.,Ltd
  • YUGUCHI Yoshimi
    Mitsui Chemical Analysis & Consulting Service Inc., Sales Devision, Osaka Branch
  • KOMURA Shinsou
    Mitsui Chemical Analysis & Consulting Service Inc., Material Properties Research Laboratory
  • TOMOMORI Naomi
    Mitsui Chemical Analysis & Consulting Service Inc., Material Properties Research Laboratory
  • MOURI Tadashi
    Mitsui Chemical Analysis & Consulting Service Inc., Osaka Analysis Center

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Other Title
  • 籠型護岸用被覆鉄線に用いるアイオノマー樹脂の耐候性評価（第一報）
  • 籠型護岸用被覆鉄線に用いるアイオノマー樹脂の耐候性評価(第1報)
  • カゴガタ ゴガンヨウ ヒフク テッセン ニ モチイル アイオノマー ジュシ ノ タイコウセイ ヒョウカ(ダイ1ポウ)

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<p>IR-coated iron wire, which was developed as wire rods for cage-type revetment around riverbanks, consists of 3 types of galvanized iron wire which is coated with primer and then laminated by extrusion with an ionomer resin. About durability of IR-coated iron wire, we compared the accelerated property of the WS-A(sunshine weather meter) test to the SUV(metal halide lamp) test with ionomer resin. As prior test revealed that the accelerating rate of the SUV test was 12 times faster than that of the WS-A test, on the basis of this supposition, we carried out durability evaluation tests by measuring tensile strength, elongation and C=O absorption in the IR spectrum(measuring the increase of carbonyl group) on IR-coated iron wire after the SUV test of 625h and the WS-A test for 7,500h. In conclusion, it was confirmed that the evaluation time of the SUV test is more than twenty times that of the WS-A test in ionomer resin.</p>

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