使用拉力试验机的强心酚羟基化聚氨酯进行应力应变性能测试。强心酚和硫代甘油反应。将强心酚羟基化的产物与HDI按照一定比例复配，搅拌30min后，用四面制备器刮涂在PE膜上，常温固化6h，100℃烘箱1h。用模具裁剪成50✖2（mm）的样条进行拉伸测试。不同的羟基化反应物，对聚氨酯机械性能的影响。

The stress and strain properties of strong phenol hydroxylated polyurethane were tested using a tensile testing machine. Cardiophenol reacts with thioglycerin. The hydroxylated products of cardiac phenol were mixed with HDI in a certain proportion. After stirring for 30min, the products were scraped and coated on PE film with a four-sided preparation device, cured at room temperature for 6h, and oven at 100℃ for 1h. Stretch test with 50✖2 (mm) spline cut by mold. Effects of different hydroxylation reactants on the mechanical properties of polyurethane.