NBR/CR共混橡胶的性能研究

摘要

将丁腈橡胶(NBR)和氯丁橡胶(CR)按不同比例共混并硫化,对橡胶的力学性能、耐热空气老化性能和耐热油老化性能进行了研究,探讨了共混比对其影响,研究了玻璃纤维的加入量对共混橡胶耐油性能的影响.结果表明,共混交联能使胶料的性能得到提升,氯丁胶的加入可使NBR/CR共混胶料的强度及耐老化性能得到增强,而在共混胶中加入NBR能够使共混胶的耐油性能得到有效提高.在共混胶中加入玻璃纤维能提高橡胶的耐油性能,当玻璃纤维的加入量为10％时,共混胶的耐变压器油的腐蚀性能最好.%Nitrile-butadiene rubber (NBR) and chloroprene rubber (CR) were blended at different ratio.The effects of the blending ratio on the properties of the physical properties of rubbers,hot air aging properties and thermal oil aging properties were investigated,and the effect of glass fiber on oil resistance of the mixed rubbers was studied as well.The results showed that the properties of the mixed rubbers were improved.The strength and aging resistant performance of NBR/CR blends increased significantly after blending with CR.And the oil resistance of NBR/CR blends effectively improved when blended with NBR.The oil resistance of the mixed rubbers was improved after adding glass fiber.When the adding amount of the glass fiber was 10％,the corrosion resistance of NBR/CR blends was the best.