Ethylene-propylene-diene rubber foamed material and sealing material
    31.
    发明专利
    Ethylene-propylene-diene rubber foamed material and sealing material 有权
    乙烯 - 丙烯 - 丁二烯橡胶泡沫材料和密封材料

    公开(公告)号:JP2014181297A

    公开(公告)日:2014-09-29

    申请号:JP2013057149

    申请日:2013-03-19

    摘要: PROBLEM TO BE SOLVED: To provide an ethylene-propylene-diene rubber foamed material that has excellent flexibility and excellent heat resistance and is capable of suppressing corrosion, and a sealing material.SOLUTION: An EPDM foamed material is obtained by foaming a rubber composition containing an EPDM. In the EPDM foamed material, the content ratio of a sulfur atom calculated based on the measurement result of a fluorescent X-ray measurement, based on mass, is 1000 ppm or less, a rate of change Rof a 50% compressive load value CL2 after being heated at 140°C for 7 days to a 50% compressive load value CL1 before being heated is 50% or more and 150% or less, and the 50% compressive load value CL1 before being heated is 0.1 N/cmor more and 2 N/cmor less. A sealing material 1 includes an EPDM foamed material 2 and an adhesive layer 3 provided on one face or both faces thereof.

    摘要翻译: 要解决的问题:提供具有优异的柔软性和优异的耐热性并且能够抑制腐蚀的乙烯 - 丙烯 - 二烯橡胶发泡体材料和密封材料。溶解性:通过使含有 EPDM。 在EPDM发泡体中,基于质量,基于荧光X射线测量的测量结果计算出的硫原子的含量比为1000ppm以下,变化率Rof为50%以后的压缩载荷值CL2的50% 在加热前在140℃加热7天至50%压缩载荷值CL1为50%以上且150%以下,加热前的50%压缩载荷值CL1为0.1N / cm以上,2 N / cm以下。 密封材料1包括EPDM发泡材料2和设置在其一个面或两个面上的粘合剂层3。