ããç产
èæ°¨é
¯æç¨çåæ主è¦æ¯ä¸å¼æ°°é
¸é
¯ï¼å¸¸ç¨çæ两大类ãä¸ç±»æ¯è³é¦æï¼å¦TDlåMDlçãä¸æ¯èèªé
¯ï¼å¦HDlçã
ããåå¼æ°°é
¸é
¯æ¯ææºåæçéè¦ä¸é´ä½ï¼å¯å¶æä¸ç³»åæ°¨åºç²é
¸é
¯ç±»æè«åãæèåã
é¤èåï¼ä¹ç¨äºæ¹è¿å¡æãç»ç©ãç®é©ççé²æ°´æ§ã äº
å®è½å¢å以ä¸çå¼æ°°é
¸é
¯å¯ç¨äºåæä¸ç³»åæ§è½ä¼è¯çèæ°¨é
¯æ³¡æ²«å¡æãæ©¡è¶ãå¼¹å纤维ãæ¶æãè¶ç²åãåæé©ã人é æ¨æçã
ããç®ååºç¨æ广ã产éæ大çæ¯æï¼
ç²è¯äºå¼æ°°é
¸é
¯ï¼Toluene Diisocyanateï¼ç®ç§°TDIï¼ï¼äºè¯åºç²ç·äºå¼æ°°é
¸é
¯ï¼Methylenediphenyl Diisocyanateï¼ç®ç§°MDIï¼ã
ããç²è¯äºå¼æ°°é
¸é
¯ï¼TDIï¼ä¸ºæ è²æ强çåºé¼»å³ç液ä½ï¼æ²¸ç¹251°Cï¼æ¯é1.22ï¼éå
åé»ï¼å¯¹ç®è¤ãç¼çæ强çåºæ¿ä½ç¨ï¼å¹¶å¯å¼èµ·æ¹¿ç¹ä¸
æ¯æ°ç®¡å®åï¼ä¸»è¦ç¨äºèæ°¨é
¯æ³¡æ²«å¡æãæ¶æãåææ©¡è¶ãç»ç¼æ¼ã
ç²ååçãæ ¹æ®å
¶æåï¼ç²è¯äºå¼æ°°é
¸é
¯å±å«æ°®åºçææºååç©ã
ããäºè¯åºç²ç·äºå¼æ°°é
¸é
¯ï¼MDIï¼å为纯MDIåç²MDIã纯MDI常温ä¸ä¸ºç½è²åºä½ï¼å çæ¶æåºæ¿èå³ï¼æ²¸ç¹196°Cï¼ä¸»è¦ç¨äºèæ°¨é
¯ç¡¬æ³¡æ²«å¡æãåæ纤维ãåææ©¡è¶ãåæé©ãç²ååçãæ ¹æ®å
¶æåï¼çº¯äºè¯åºç²ç·äºå¼æ°°é
¸é
¯ä¹å±å«æ°®åºçææºååç©ã
ããè¿æéé»ååç1,6-å·±äºå¼æ°°é
¸é
¯ï¼HDIï¼ã