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kl5top

至尊木虫 (职业作家)

[交流] 【求助】 帮忙分析一下这个DSC谱图

??????????????????????DSC???
??????????????10??/min??????200?棬??????2min???????????????????100?棬????????????????????200?档

???????У???50??????????????????????????????????????????Tg????????????????????????????壿

0???????????????????????????

???У??????????????????η????????????

???????????????????лл??????

[ Last edited by wellok101 on 2008-12-1 at 22:37 ]
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science255

木虫 (正式写手)

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kl5top(金币+1,VIP+0):仔细分析了一下,估计是跟水有关
基线的变化反映的热容的变化,玻璃化转变前后物质热容发生了变化,基线当然出现台阶.高温时基线漂移也是这个原因,因为粘流或分解等引起的.你的分析应该基本是正确的,但0度左右的峰也可能跟水有关.
9楼2008-11-26 08:56:55
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sky.ae

木虫 (正式写手)

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kl5top(金币+1,VIP+0):欢迎积极回帖
??????100?棬??????200?????????0???????з壬???????100??????????
??50???????????????????????????????????????100??????????С????????????????????С??????????Tg??????????????????????????????????????
0??????????????????????塣
????????????????????????????????????????
2楼2008-11-25 14:58:59
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kl5top

至尊木虫 (职业作家)

???????:
Originally posted by sky.ae at 2008-11-25 14:58:
??????100?棬??????200?????????0???????з壬???????100??????????
??50???????????????????????????????????????100??????????С????????????????????С??????????Tg???????? ...

????лл?????????
?????????????????????д????????????
100??????????????????????????????????????DSC,Tg??????????50??80??????????????50??C?????????????????????ν??????
??????????ò???200?????·??????????TGA,???????????????????????????????????????????????????????

???????е?????????50?????????????????????
3楼2008-11-25 15:37:19
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jinguizi001

木虫 (正式写手)

估计消去热历史的温度太高,影响了PU的结构了。
4楼2008-11-25 17:35:06
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