[交流] 玻璃态转化温度Tg/热变形温度HDT是热固性材料的最高使用温度么？

3楼: Originally posted by tinghaidub at 2011-09-02 11:10:43:
热固型塑料没有玻璃化转变温度，也没有热变形温度，只有分解温度。

6楼: Originally posted by tinghaidub at 2011-09-02 12:09:46:
随着交联度的提高，所谓的Tg、HDT会不断上升。

11楼: Originally posted by zznjut at 2011-09-04 17:53:58:
Of course HDT.
Because HDT is usually lower than Tg for amphorous polymers.
For thermoset, the temperature of its application is also strongly depended upon HDT.
If you are interested in this to ...

15楼: Originally posted by adiu at 2011-09-07 09:15:18:
看了帖子很受教，
但是我有点异议：14楼“都是塑料。超过的tg话当然就不适合用了”但是很多塑料的玻璃化温度都在室温以下，也没见着不适用啊？？

30楼: Originally posted by wss778899 at 2013-11-17 19:43:29
玻璃化转变温度又分为Tg1、Tg2、Tg3，分别对应储能模量、损耗模量、损耗因子，作为工程应用上应该是Tg1是不是更准确呢？这个温度下的模量变化较小。这样Tg1与HDT有没有可比性？