首页> 外文期刊>Journal of Applied Polymer Science >Improvement of the Properties of Ground Tire Rubber (GTR)-Filled Nitrile Rubber Vulcanizates Through Plasma Surface Modification of GTR Powder
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Improvement of the Properties of Ground Tire Rubber (GTR)-Filled Nitrile Rubber Vulcanizates Through Plasma Surface Modification of GTR Powder

机译:通过对GTR粉末进行等离子表面改性,改善了碎轮胎橡胶(GTR)填充的丁腈橡胶硫化橡胶的性能

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摘要

The surface modification of ground tire rubber (GTR) powder to enhance its adhesion to nitrile rubber (NBR) vulcanizates was investigated. The hydrophobic surface of GTR powder has been transformed to a hydrophilic one through atmospheric pressure dielectric barrier discharge (DBD). The water contact angle dropped markedly from 116 to 0 degrees after being treated for more than 10s. Attenuated total reflectance Fourier transform infrared spectral (ATR-FTIR) studies re I vealed the increase in peak intensity at 3298 and 1640 cm(-1) that correspond to O-H and C=C, respectively, on the surface of the GTR powder. The X-ray photoelectron spectroscopic (XPS) analysis further confirmed the presence of oxygen containing polar functional groups on the surface of the GTR powder after atmospheric plasma treatment. The improvement in tensile strength and tear strength was observed for the modified GTR-filled NBR vulcanizates, which is attributed to the enhanced interfacial interaction between modified GTR and NBR matrix.
机译:研究了地面轮胎橡胶(GTR)粉末的表面改性,以增强其与丁腈橡胶(NBR)硫化橡胶的粘合力。 GTR粉末的疏水表面已通过大气压介电势垒放电(DBD)转变为亲水表面。处理超过10s后,水接触角从116度显着下降到0度。衰减全反射傅里叶变换红外光谱(ATR-FTIR)研究表明,在3298和1640 cm(-1)处的峰值强度分别对应于OTR和C = C在GTR粉末表面上的增加。 X射线光电子能谱(XPS)分析进一步证实了在大气等离子体处理之后,GTR粉末的表面上存在含氧的极性官能团。观察到,改性的GTR填充的NBR硫化橡胶的拉伸强度和撕裂强度有所提高,这归因于改性的GTR和NBR基质之间的界面相互作用增强。

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