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2Â¥2010-05-27 00:07:08
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jonas6126

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xuefeifei12555(½ð±Ò+1, ·­ÒëEPI+1):15 2010-05-27 10:13:55
xuefeifei12555(½ð±Ò+14): 2010-05-27 10:14:30
ÓÃDSCÑо¿ÁËÈÛÈÚζÈÓëÈÛÈÚʱ¼ä¶ÔPC/PU¹²»ìÌåϵÖÐPC½á¾§ÐÐΪµÄÓ°Ïì¡£²»Í¬µÄÈÛÈÚζȺÍÈÛÈÚʱ¼ä¶Ô¹²»ìÎïµÄ½á¾§ÐÐΪӰÏì±íÃ÷£¬ÔÚÏàͬµÄÈÛÈÚζÈÌõ¼þÏ£¬PCµÄ½á¾§·åζÈËæ×ÅÈÛÈÚʱ¼äµÄÑÓ³¤ÏòµÍη½ÏòÒƶ¯£¬½á¾§·åζȺͽᾧìÊÖµÖð½¥½µµÍ£¬½á¾§·åÖð½¥±ä¿í£»ÔÚÏàͬµÄÈÛÈÚʱ¼äÌõ¼þÏ£¬PCµÄ½á¾§·åζÈËæ×ÅÈÛÈÚζȵÄÌá¸ßÏòµÍη½ÏòÒƶ¯£¬½á¾§·åζȰ´200¡æ>220¡æ>240¡æ½µµÍ¡£
DSC was used to study the impact of the fusion temperature and time on the crystallinity of PC in PC/PU blends. It is concluded, from the different influence of fusion temperature and time, that under the same fusion temperature, Tc of PC gets lower with the prolonging of the fusion time. Meanwhile, the enthalpy of crystallinity gets lower and the width of the peak gets broader. Under the same fusion time, Tc of PC gets towards a lower temperature with the increase of fusion temperature. Tc gets lower according to the sequence of 200¡æ>220¡æ>240¡æ.
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3Â¥2010-05-27 00:36:26
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jonas6126

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4Â¥2010-05-27 00:36:58
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liufengbao100

ľ³æ (ÕýʽдÊÖ)

foreverhappy

xuefeifei12555(½ð±Ò+5): 2010-05-27 10:14:05
DSC was used to study the impact of the fusion temperature and time on the crystallinity of PC in PC/PU blends. Different melting temperature and melting time on the crystallization behavior of blends impact that the melting temperature in the same conditions, PC with the melting temperature of the crystallization peak time shifts to low temperature, crystallization peak temperature and crystallization enthalpy decreases , crystallization peak becomes wider; at the same time under the conditions of melting, PC crystallization peak temperature increased with the melting temperature shifts to low temperature, the crystallization peak temperature by 200 ¡æ> 220 ¡æ> 240 ¡æ lower.
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5Â¥2010-05-27 08:30:52
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wangqi2009

ľ³æ (СÓÐÃûÆø)

The effect of the fusion temperature and time on the crystallinization behavior of PC in PC/PU blends was investigated by differential scanning calorimetry (DSC).The influence indicated that on the same condition  with the prolonging of the fusion time ,the crystallization peak shifting to low temperature , crystallization peak temperature and crystallization enthalpy decreased and crystallization peak became wider.When fusion time was same, with the increase of melting temperature ,crystallization peak temperature of PC shifted to low temperature, which decreased by 200 ¡æ> 220 ¡æ> 240 ¡æ .
6Â¥2010-05-27 10:17:27
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noleg

½ð³æ (СÓÐÃûÆø)

µÚÒ»¾äÀàËÆÁùÂ¥wangqi2009±È½Ïµ½Î»£º¡°The effect of the fusion temperature and time on the crystalline behavior of PC in PC/PU blends was investigated by differential scanning calorimetry (DSC).¡±
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7Â¥2010-05-27 10:46:25
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