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lofo_0207

银虫 (小有名气)

[求助] 急求关于nafion溶液铸膜的问题!

本人小白,想用5%nafion溶液铸膜,加入10%-20%的DMF,室温挥发溶剂,出现两种情况,要么就是开裂,要么就是形成的膜紧贴在表面皿上,弄不下来,而且很脆。求高人指点,应该怎样铸膜!
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lfang

木虫 (著名写手)


室温挥发DMF?DMF的沸点太高了吧,室温挥发不干净的。一般铸膜会用醇和水的溶液,但是具体配方需要查铸膜文献。
2楼2012-11-10 15:13:46
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lofo_0207

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引用回帖:
2楼: Originally posted by lfang at 2012-11-10 15:13:46
室温挥发DMF?DMF的沸点太高了吧,室温挥发不干净的。一般铸膜会用醇和水的溶液,但是具体配方需要查铸膜文献。

是,DMF挥发不掉,但是本来的nafion溶液是醇和水的混合物,所以室温只是为了挥发醇和水的,这就已经裂了,如果拿到高温里挥发DMF,会裂的更厉害吧
3楼2012-11-11 18:14:51
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