초록 |
The adhesion property between rubber compounds containing different types of adhesion promoters (resinous adhesion promoter(methylene donor/acceptor), cobalt salt and zinc borate) and loading amounts of accelerator and brass plated steel cord was investigated to understand the effect of accelerator loading in rubber compounds on their adhesion characteristics to the brass plated steel cords. In the various adhesion promoters incorporated, zinc borate showed the largest enhancement of adhesion properties after cure. For the rubber compounds containing zinc borate, pull-out force increased two times with increasing loading amount of accelerator from 0.4 phr to 1.6 phr. But for the rubber compounds containing either resinous adhesion promoter or cobalt salt, pull-out force decreased slightly with increasing loading amount of accelerator. The interphases between the rubber compounds and the brass plated steel cords using AES were interpreted in conjunction with adhesion property. The suppression of dezincification was observed for a high loading of the accelerator in the rubber compounds. |