| 摘要 |
一种经硬化弹性体，系由于第一交联温度T1下部分地交联弹性体化合物而形成，其含有第一与第二自由基起始剂，之后于第二交联温度T2下进一步交联而形成。其中：(i)该第一自由基起始剂于T1之半生期为约0.2-5分钟，该第二自由基起始剂于T2之半生期为约0.2-5分钟，以及T2高于T1至少约30℃；或(ii)该第二自由基起始剂之一分钟半生期温度高于第一自由基起始剂之一分钟半生期温度至少约30℃，T1落于第一一分钟半生期温度之上下约20℃内，以及T2落于第二一分钟半生期温度之上下约20℃内。 A cured elastomer is formed by partially crosslinking an elastomer compound containing first and second free radical initiators at a first crosslinking temperature T1, then further crosslinking at a second crosslinking temperature T2. Either: (i) the first free radical initiator’s half-life is about 0.2-5 minutes at T1, the second free radical initiator’s half-life is about 0.2-5 minutes at T2, and T2is higher than T1by at least about 30℃; or (ii) the second free radical initiator’s one-minute half-life temperature is higher than the first free radical initiator’s one-minute half-life temperature by at least about 30℃, T1is within about 20℃ of the first one-minute half-life temperature, and T2is within about 20℃ |
