炭黑和硫化对丁苯橡胶应力-应变行为的影响
Effect of carbon black and vulcanization on tensile strain-stress behavior of SBR
-
摘要: 研究了几种炭黑对丁苯橡胶的补强效果,提出了一个新的补强模型——超级网络结构模型。该模型是由硫磺形成的不可逆化学交联网络和由炭黑-橡胶相互作用形成的可逆物理交联网络,这两个网络彼此不独立,而是交织在一起的一个超级网络结构。可逆交联网络的强度越大,炭黑的补强作用越大。Abstract: The influence of carbon black on rubber reinforcement was studied. A new reinforcement model, supernetwork structure model, was proposed. The supernetwork was composed of nonreversible chemical crosslinking and reversible physical crosslink due to carbon blackrubber interaction. The two crosslinkings were not isolated but interlaced with each other. With the strength of reversible physical crosslink increasing, carbon black reinforcement became more effective.