Polyurethane (PU) elastomer has been widely used in many fields. In this work, polyurethane/polysiloxane elastomers are synthesized by one-step polymerization using polyether and polyester polyols. The properties of polytetramethylene ether glycol (PTMG) and polycarbonate (PCDL) on polyurethane/polysiloxane elastomers are characterized by various test methods. The results show that PTMG is superior to PCDL in heat resistance and hydrophobicity to polyurethane/polysiloxane elastomers. The heat resistance index of PTMGPU is as high as 154 °C, and its contact angle has reached 115.2°. In addition, the surface of PTMGPU contains more silicone. This may be because the chain structure of PTMG is conducive to the migration of siloxane to the surface, and then a Si-O-Si protective layer is formed, thereby improving the heat resistance and hydrophobicity of the surface of PTMGPU. PCDLPU shows good mechanical properties, which may be related to the stronger chain structure of PCDL. This provides a theoretical basis for the future application of polyurethane/polysiloxane materials.

聚氨酯（PU）弹性体已广泛用于许多领域。在这项工作中，聚氨酯/聚硅氧烷弹性体通过使用聚醚和聚酯多元醇的一步聚合来合成。聚四亚甲基醚二醇（PTMG）和聚碳酸酯（PCDL）在聚氨酯/聚硅氧烷弹性体上的性能通过各种测试方法进行了表征。结果表明，PTMG在耐热性和疏水性方面优于PCDL，优于聚氨酯/聚硅氧烷弹性体。PTMGPU的耐热指数高达154°C，接触角达到115.2°。另外，PTMGPU的表面含有更多的有机硅。这可能是因为PTMG的链结构有利于硅氧烷迁移至表面，然后形成了Si-O-Si保护层，从而提高了PTMGPU表面的耐热性和疏水性。PCDLPU具有良好的机械性能，这可能与PCDL的更强链结构有关。这为聚氨酯/聚硅氧烷材料的未来应用提供了理论基础。