TPU对POM低温韧性的影响
发布时间：2019-07-02 14:49
【摘要】：通过熔融共混法制备出聚甲醛(POM)/热塑性聚氨酯(TPU)复合材料。采用差示扫描量热仪测试(DSC)、脆化温度测试、扫描电子显微镜(SEM)、力学性能测试分析了TPU添加量与POM复合材料结晶度和低温性能的关系。结果表明:随着TPU添加量的增加,POM/TPU的常温和低温韧性增大,当TPU含量为10%时,POM/TPU复合材料脆性温度为-39℃,在-30℃下POM复合材料的缺口冲击强度提高了47%;TPU的加入降低了POM/TPU的结晶度,对POM有良好的低温增韧作用。
[Abstract]:Polyformaldehyde (POM) / thermoplastic polyurethane (TPU) composites were prepared by melt blending. The embrittlement temperature of (DSC), was measured by differential scanning Calorimeter (DSC). The relationship between the amount of TPU and the crystallinity and low temperature properties of POM composites was analyzed by scanning electron microscope (SEM),). The results show that with the increase of TPU content, the toughness of POM/TPU composites increases at room temperature and low temperature. When the content of TPU is 10%, the brittle temperature of POM/TPU composites is-39 鈩，
本文编号：2509018
[Abstract]:Polyformaldehyde (POM) / thermoplastic polyurethane (TPU) composites were prepared by melt blending. The embrittlement temperature of (DSC), was measured by differential scanning Calorimeter (DSC). The relationship between the amount of TPU and the crystallinity and low temperature properties of POM composites was analyzed by scanning electron microscope (SEM),). The results show that with the increase of TPU content, the toughness of POM/TPU composites increases at room temperature and low temperature. When the content of TPU is 10%, the brittle temperature of POM/TPU composites is-39 鈩，
本文编号：2509018
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