使用拉力试验机的腰果酚衍生物羟基化聚氨酯进行应力应变性能测试。将611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。同样的样品拉伸的速率，对比结果是否有变化。

The stress-strain properties of the hydroxy polyurethane derived from cashew phenol were tested by tensile testing machine. The product of 611 hydroxylation was mixed with HDI in a certain proportion, stirred for 30min, 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. The same stretching rate of the sample is compared to see if the result changes.