DYNAMIC SEAL MEMBER
    3.
    发明申请
    DYNAMIC SEAL MEMBER 审中-公开
    动态密封会员

    公开(公告)号:US20110156357A1

    公开(公告)日:2011-06-30

    申请号:US12647948

    申请日:2009-12-28

    摘要: A dynamic seal member includes a ternary fluoroelastomer (FKM) and carbon nanofibers. The carbon nanofibers are carbon nanofibers having an average diameter of 10 to 20 nm, or carbon nanofibers having an average diameter of 60 to 110 nm and subjected to a low-temperature heat treatment. The carbon nanofibers having an average diameter of 60 to 110 nm and subjected to the low-temperature heat treatment have a ratio (D/G) of a peak intensity D at around 1300 cm−1 to a peak intensity G at around 1600 cm−1 measured by Raman scattering spectroscopy of more than 0.9 and less than 1.6. The dynamic seal member has a number of cycles to fracture of 10 or more when subjected to a tension fatigue test at a temperature of 200° C., a maximum tensile stress of 2.5 N/mm, and a frequency of 1 Hz. The dynamic seal member exhibits excellent heat resistance and abrasion resistance.

    摘要翻译: 动态密封件包括三元含氟弹性体(FKM)和碳纳米纤维。 碳纳米纤维是平均直径为10〜20nm的碳纳米纤维,平均直径为60〜110nm的碳纳米纤维,进行低温热处理。 平均直径为60〜110nm并进行低温热处理的碳纳米纤维具有1300cm -1左右的峰强度D与1600cm -1附近的峰值强度G的比(D / G) 1通过拉曼散射光谱测量,大于0.9且小于1.6。 当在200℃的温度,2.5N / mm的最大拉伸应力和1Hz的频率下进行拉伸疲劳试验时,动态密封构件具有10个以上的断裂的循环次数。 动态密封件表现出优异的耐热性和耐磨性。