HEAT-RESISTANT SEALANT, ENDLESS SEALING MEMBER USING THE SAME, AND DOWNHOLE UNIT FURNISHED WITH ENDLESS SEALING MEMBER
    4.
    发明公开
    HEAT-RESISTANT SEALANT, ENDLESS SEALING MEMBER USING THE SAME, AND DOWNHOLE UNIT FURNISHED WITH ENDLESS SEALING MEMBER 有权
    耐热密封胶,用这种无尽的密封件,其使用装配井单元无尽的密封件

    公开(公告)号:EP2275720A1

    公开(公告)日:2011-01-19

    申请号:EP08751843.7

    申请日:2008-04-07

    IPC分类号: F16J15/10 C09K3/10

    摘要: A heat-resistant seal material 130a and 130b of the invention includes 100 parts by weight of a ternary fluoroelastomer, 1 to 30 parts by weight of vapor-grown carbon fibers having an average diameter of more than 30 nm and 200 nm or less, and carbon black having an average particle diameter of 25 to 500 nm. The heat-resistant seal material 130a and 130b contains the vapor-grown carbon fibers and the carbon black in an amount of 20 to 40 parts by weight in total. The heat-resistant seal material 130a and 130b has a compression set when subjected to a compression set test at a compression rate of 25% and a temperature of 200°C for 70 hours of 0 to 15% and a dynamic modulus of elasticity at 200°C (E'/200°C) of 30 to 100 MPa.

    摘要翻译: 本发明的耐热性密封材料130a和130b包括100重量份的三元含氟弹性体,1至30份(重量)具有上的大于30nm和200nm或更小平均直径的气相生长碳纤维,以及 具有上的25至500纳米的平均粒径的炭黑。耐热密封材料130a和130b中包含气相生长碳纤维和炭黑中以20至40份的量按总重量计。 耐热性的密封材料130a和130b具有的压缩永久变形。当在25%的压缩率和200℃70小时的0的温度,以15%的和弹性的,在200的动态模量进行压缩永久变形试验 ℃下30至100MPa的(E“/ 200℃)。