聚酰胺

Onset decomposition temperature of the polyimide was at 508 ℃ under nitrogen atmosphere, and its glass-transition temperature was at 288 ℃. The polyimide film had strengths at break at 91 MPa, elongations to break of 10%～15%, and initial moduli at 1.7 GPa.

此外该聚醚酰亚胺还表现出良好的热性能和机械性能：玻璃化转变温度在288 ℃，氮气中起始分解温度在508 ℃；该聚合物薄膜的拉伸强度为91 MPa，断裂伸长率在10%～15%，起始模量为1.7 GPa。

In this work, methyl methacrylate, epoxy resin and unsaturated polyester resin were modified by industrial bismaleimides and liquid crystalline bismaleimides to increase the thermal stability and mechanical property of the three materials. So the ranges of the three materials useness will be enlarged.

本文采用双马来酰亚胺改性甲基丙烯酸甲酯、环氧树脂和不饱和聚酯树脂，以期提高这三种材料的耐热性能和机械性能，从而拓宽聚甲基丙烯酸甲酯、环氧树脂和不饱和聚酯树脂的应用范围，所以这一课题的研究具有重要的理论和实际意义。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。