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zhongguoabc
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5Â¥2009-04-15 12:45:55
chypo
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| PBTΪÈé°×É«°ë͸Ã÷µ½²»Í¸Ã÷¡¢½á¾§ÐÍÈÈËÜÐÔ¾Ûõ¥¡£¾ßÓиßÄÍÈÈÐÔ¡¢ÈÍÐÔ¡¢ÄÍÆ£ÀÍÐÔ£¬×ÔÈ󻬡¢µÍĦ²ÁϵÊý£¬ÄͺòÐÔ¡¢ÎüË®Âʵͣ¬½öΪ0.1%£¬ÔÚ³±Êª»·¾³ÖÐÈÔ±£³Ö¸÷ÖÖÎïÐÔ£¨°üÀ¨µçÐÔÄÜ£©£¬µç¾øÔµÐÔ£¬µ«Ìå»ýµç×è¡¢½éµçËðºÄ´ó¡£ÄÍÈÈË®¡¢¼îÀà¡¢ËáÀà¡¢ÓÍÀà¡¢µ«Ò×Êܱ»¯ÌþÇÖÊ´£¬ÄÍË®½âÐԲµÍÎÂÏ¿ÉѸËٽᾧ£¬³ÉÐÍÐÔÁ¼ºÃ¡£È±µãÊÇȱ¿Ú³å»÷Ç¿¶ÈµÍ £¬³ÉÐÍÊÕËõÂÊ´ó ¡£¹Ê´ó²¿·Ö²ÉÓò£Á§ÏËάÔöÇ¿»òÎÞ»úÌî³ä¸ÄÐÔ£¬ÆäÀÉìÇ¿¶È¡¢ÍäÇúÇ¿¶È¿ÉÌá¸ßÒ»±¶ÒÔÉÏ£¬ÈȱäÐÎζÈÒ²´ó·ùÌá¸ß¡£¿ÉÒÔÔÚ140¡æÏ³¤ÆÚ¹¤×÷£¬²£ÏËÔöÇ¿ºóÖÆÆ·×Ý¡¢ºáÏòÊÕËõÂʲ»Ò»Ö£¬Ò×Ê¹ÖÆÆ··¢ÉúÇÌÇú¡£ |
2Â¥2009-04-14 23:27:37
vagrantjasmine
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At room temperature, PBT is resistant to weak acids, weak bases, water, and aqueous solutions of neutral and acid salts. PBT is non-resistant to strong acids, oxidizing acids, strong bases, ketones and phenols. Above 6O, PBT becomes increasingly sensitive to univalent alcohols,aromatic substances, and ketones. ÁíÍ⣬Äã¿ÉÒÔ½èÓó£ÈܽâPETµÄÈܼÁ£º±½·ÓÓëËÄÂÈÒÒÍéµÄ»ìºÏÎÖÊÁ¿±È3£º2»ò1£º1£© |
3Â¥2009-04-15 08:44:59
wujianTFRC
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- ×¢²á: 2007-11-16
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4Â¥2009-04-15 09:27:11














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