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지식나눔

지식나눔

nylon (PA 66)폴리머를 dissolve...

2004-02-02 org.kosen.entty.User@1727647 조영기(cre03ati)
  • 2
안녕 하십닌까. nylon (PA 66, PA 6)폴리머를 dissolve 할수있는 solvent는 어떤 종류가 있는지 알고 싶습니다. 또한 dissolve시 몇도의 온도에서 녹일수 있는지도 부탁드립니다. 그럼 답변 부탁드리면서 이만..
  • nylon
  • solvent
지식의 출발은 질문, 모든 지식의 완성은 답변! 
각 분야 한인연구자와 현업 전문가분들의 답변을 기다립니다.
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  • 답변

    이배훈님의 답변

    2004-08-11
    • 0
    >안녕 하십닌까. >nylon (PA 66, PA 6)폴리머를 dissolve 할수있는 solvent는 어떤 종류가 있는지 알고 싶습니다. >또한 dissolve시 몇도의 온도에서 녹일수 있는지도 부탁드립니다. > >그럼 답변 부탁드리면서 이만.. Trifluoroethanol, CF3CH2OH, was first prepared in 1933. This colorless liquid with an ethanol-like odor has a number of unique properties. The three fluorines give the alcohol a high ionization constant and very strong hydrogen bonding capability, which make it a very unusual solvent. The fluorines also make the molecule very stable at high temperatures. These properties have put trifluoroethanol (TFE) to use in some special applications in addition to its use in pharmaceutical and agricultural chemical syntheses. An unusual property of TFE is its ability to dissolve nylons at room temperature. Unlike nylon solutions in strong acids, the nylons can be recovered unchanged from these solutions. Concentrations of 3 to 10% may be made from common nylons at room temperature and metastable solutions can be made from more concentrated hot solutions upon cooling. These supersaturated solutions may remain clear for hours or even days at room temperature, serving as a convenient source of fluid nylon.
    답변수정
    >안녕 하십닌까. >nylon (PA 66, PA 6)폴리머를 dissolve 할수있는 solvent는 어떤 종류가 있는지 알고 싶습니다. >또한 dissolve시 몇도의 온도에서 녹일수 있는지도 부탁드립니다. > >그럼 답변 부탁드리면서 이만.. Trifluoroethanol, CF3CH2OH, was first prepared in 1933. This colorless liquid with an ethanol-like odor has a number of unique properties. The three fluorines give the alcohol a high ionization constant and very strong hydrogen bonding capability, which make it a very unusual solvent. The fluorines also make the molecule very stable at high temperatures. These properties have put trifluoroethanol (TFE) to use in some special applications in addition to its use in pharmaceutical and agricultural chemical syntheses. An unusual property of TFE is its ability to dissolve nylons at room temperature. Unlike nylon solutions in strong acids, the nylons can be recovered unchanged from these solutions. Concentrations of 3 to 10% may be made from common nylons at room temperature and metastable solutions can be made from more concentrated hot solutions upon cooling. These supersaturated solutions may remain clear for hours or even days at room temperature, serving as a convenient source of fluid nylon.
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  • 답변

    설창님의 답변

    2004-08-27
    • 0
    Polymer Handbook을 참고하시면 됩니다. 상온에서녹이는 용매:formic acid,HCl,HF, methanol,phenols,phosphoric acid,sulfuric acid,tricloroethanol등. 120~180C로 가열하여 녹일수 있는 용매: acetic acid,benzyl alcohol,2-butene-1,4-diol, 1,3-chloropropanol, di(ethylene glycol),DMSO,ethylene chlorohydrin, formamide 등이 나와있습니다.
    답변수정
    Polymer Handbook을 참고하시면 됩니다. 상온에서녹이는 용매:formic acid,HCl,HF, methanol,phenols,phosphoric acid,sulfuric acid,tricloroethanol등. 120~180C로 가열하여 녹일수 있는 용매: acetic acid,benzyl alcohol,2-butene-1,4-diol, 1,3-chloropropanol, di(ethylene glycol),DMSO,ethylene chlorohydrin, formamide 등이 나와있습니다.
    등록된 댓글이 없습니다.
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