氟橡胶F2314物理老化的研究 |
Study on Physical Aging of Fluoropolymer F2314 |
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DOI: |
中文关键词: 氟橡胶 物理老化 动态力学性能 |
英文关键词: fluoropolymer physical aging dynamic propety |
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中文摘要: |
采用差示扫描量热(DSC)和动态力学分析等方法研究物理老化对氟橡胶F2314性能的影响。结果表明:在45 ℃下进行物理老化,随着物理老化时间的延长,氟橡胶F2314的储能模量增大,损耗因子减小;DSC吸收峰的热焓没有明显变化,但峰位向高温方向移动;松弛模量增大,且增幅逐渐增大。 |
英文摘要: |
The physical aging of fluoropolymer F2314 was studied by differential scanning calorimetry (DSC) and dynamic mechanical analysis.The results showed that,as the time of physical aging at 45 ℃ prolonged,the storage modulus of F2314 increased,the loss factor was decreased;the enthalpy of DSC absorption peak had no significant change,but the peak position moved towards higher temperature zone;the relaxation modulus increased and the amplitude increased gradually. |
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