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Originally posted by cGroup at 2010-11-11 16:00:31:


The curing process of PU coating could accelerate in the present of organotin or other organic metal, moreover, the activities of monomer are different. MDI>TDI>IPDI>HDI.
then you can ...

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4Â¥2010-11-12 08:42:41
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¶ÔÎÇÓã(½ð±Ò+3):¸ÐлӦÖú~~»¶Ó­³£À´¸ß·Ö×Ó°æ~~ 2010-11-11 23:02:29
why5201314(½ð±Ò+1):¸Ðл£¬µ«Ì«¹ý·º·ºÁË£¬ÎÒÏëÖªµÀһЩ¾ßÌåµÄ±ÈÈçÓÃʲôԭÁÏ»òÊÔ¼Á¡£ 2010-11-12 12:53:35
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Originally posted by why5201314 at 2010-11-11 15:10:35:
ÔÚÏÂÔÚ×öË«×é·Ö¾Û°±õ¥ÎÞÈܼÁÍ¿ÁÏ£¬ÓÉÓÚÒªÇóÀ­ÉìÇ¿¶È16MPaÒÔÉÏ£¬ËùÒÔ»ìºÏºó·´Ó¦¾çÁÒ£¬¶ÔÊ©¹¤Ó°ÏìºÜ´ó£¬²»ÖªµÀÄÄλ´óÏÀÓкõİ취À´½µµÍ·´Ó¦ËÙ¶È£¬Í¬Ê±7ÌìÇ¿¶ÈÓÖÄÜ´ïµ½16MPaÄØ£¬Ð¡µÜÔÚÕâÏÈл¹ýÁË ...

The curing process of PU coating could accelerate in the present of organotin or other organic metal, moreover, the activities of monomer are different. MDI>TDI>IPDI>HDI.
then you can adjust the cuing velocity by:
1.reducing the use of catalyst
2.using the proper monomer.
3.if possible, using blocked polyisocyanate curing agent instead.
3Â¥2010-11-11 16:00:31
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