The preparation process of the shape memory fiber includes the following steps: preparing shape memory polyurethane with excessive isocyanate;

本发明提供的形状记忆纤维的制备方法包括步骤（1）：制备异氰酸酯过量的形状记忆聚氨酯；

youdao

The material uses what the researchers are calling 'shape-memory' polymers and have a fiber optic network embedded within them which acts as the damage sensor as well as the heat delivery system.

ENGADGET: Shape-memory polymer knows when it's hurt, fixes itself