thermosetting polymer

例句：

1. 1.The thermosetting material is used in the production of plastic products.
   这种热固性材料用于生产塑料制品。
2. 2. The thermosetting resin has excellent mechanical properties and can be used for a variety of applications.
   这种热固性树脂具有优良的机械性能，可用于多种应用。
3. 3. The thermosetting process involves heating the material until it becomes hard and then curing it to form a permanent structure.
   热固过程涉及加热材料直到它变硬，然后固化以形成永久性结构。