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guyulan

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[求助] 求:常见的醇溶性的聚氨酯有哪些?

求:常见的醇溶性的聚氨酯有哪些?(可以溶于乙醇的聚氨酯常见的有哪些?)
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tyhjqxbz

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【答案】应助回帖

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    ???????????z??????????ù??I???????,?????????????????????????????????????,?????????????{???????????????????????,???????I??????????????????(?????????????e?????0.5%????),???????????z???????,?????????l?,??r?????????????????????ζ??????,???????????????????e?????????95%,???????e???????0.03%????,?????e???????0.16%?????
    2.3?????????????z????????????????z?????????
    ??????????????????z??????O??,???????????z?????????ε?????z?????y??????h???????Q,????????z?????????y????
    3?????????????z?????F??
    ??????,???????????b???I?????l?,????????????????t????ИI????g?M??,?@Щ?ИI???M????????????????b???????????I????b?????????????b?????b???b???????b?????????????????b??????????,????????b??G????????????l?????
    ????W???l?_??????b?ИI????????τ?,???????íh????a?,???????????z????????????????m??W?????Щ?l?_???????_?????????p?M??o??????z???,????????ó????????,????40%?????????????z???,????95%????鴼?????z????????,???????????z??????????]??????a?,??????????????M??,?????????H?м??????Y????Y??????b??I???,?M????????????????????????
    4????????
    ???????????z???????????????o80??????????????V????,??????????_?l?о???????????????A?Ρ???????,?????????Щ?????_????a???????????z???,?籱???????о????????|????,???γ???1000t??????????,???????????w?????????????????????????p?M???????z????????V???й????ń????_?,???H??????????^??,?????S???V?????????f??,?????????????p?M???????z???????????ИI?е?????V???????,???????ИI?M????????l??A?Ρ?
只为成功找方法,不为失败找借口——欢迎常到注册执考区
2楼2011-10-18 19:56:50
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