| 多手段研究分析聚丙烯的热氧老化机理 |
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| 引用本文： | 黄立辉,宋方方,胡全超. 多手段研究分析聚丙烯的热氧老化机理[J]. 中国建筑防水, 2021, 0(2) |
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| 作者姓名： | 黄立辉 宋方方 胡全超 |
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| 作者单位： | 科顺防水科技股份有限公司 |
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| 摘 要： | 对聚丙烯材料进行热氧老化,采用动态热机械分析法测试其机械性能变化,采用拉力机测试其力学性能变化,采用傅里叶变换红外光谱仪测试其表面基团的变化,采用超景深三维数码显微镜观察其表面形貌的变化。结果表明:随着热氧老化时间的延长,聚丙烯的链段受到破坏,力学性能显著下降,机械性能下降,材料表面形貌会出现较大的缺陷;聚丙烯的热氧老化分为诱导和加速老化两个阶段。
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| 关 键 词： | 聚丙烯 热氧老化 动态热机械分析法 红外光谱法 力学性能 表面形貌 |
Multiple Means Research and Analysis of the Thermo-oxidative Aging Mechanism of Polypropylene |
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| Huang Lihui,Song Fangfang,Hu Quanchao. Multiple Means Research and Analysis of the Thermo-oxidative Aging Mechanism of Polypropylene[J]. China Building Waterproofing, 2021, 0(2) |
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| Authors: | Huang Lihui Song Fangfang Hu Quanchao |
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| Affiliation: | (Keshun Waterproof Technology Co.,Ltd.,Foshan,Guangdong 528303,China) |
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| Abstract: | After thermo-oxidative aging of polypropylene material,its mechanical property change is tested by dynamic thermal mechanical analytical method;physical performance change is tested by tensile machine;surface perssad change is tested by Fourier transform infrared spectrometer;surface appearance change is observed by 3D digital microscope of super depth of field.Results show:as the thermo-oxidative aging time extends,the chain segment of polypropylene is damaged,its physical performance degrades significantly,mechanical property reduces,and some defects appear on the material surface;the thermo-oxidative aging of polypropylene is divided into inducing and accelerating aging phases. |
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| Keywords: | polypropylene thermo-oxidative aging dynamic thermal mechanical analytical method infrared spectroscopy physical performance surface appearance |
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