基于植物多酚/多胺的芳纶帘线绿色环保浸胶体系及其界面粘合机理研究

A environment-friendly PTA dipping system(PTA dipping solution) of aramid cord based on plant polyphenols/polyamines was studied,and the adhesion of the PTA dipped aramid cord and rubber was compared with that of the resorcinol-formaldehyde-latex(RFL) dipping solution dipped aramid cord and rubber. The attenuated total reflection Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy analysis results showed that,butadiene pyridine latex was coated on the surface of aramid cord after the impregnation with PTA dipping solution,and it contained C= C bonds that could participate in rubber vulcanization. Besides,the dipping effect of aramid cord with PTA solution was good. The H pullout force of the aramid cords from rubber was tested,and the H pull-out force of the aramid cord dipped with the PTA dipping solution compared with that of the aramid cord dipped with the RFL dipping solution was slightly high,before and after the heat aging. In addition,the retention rate of the H pull-out force after room temperature parking was improved. The analysis results of scanning electron microscope showed that the interface adhesion between the aramid cord dipped with the PTA dipping solution and rubber matrix was better.