钢丝帘布的剥离测试方法研究

针对钢丝帘布剥离测试结果的系统性不稳定情况,研究剥离力测试结果的影响因素。结果表明:利用夹持端包布提高夹持摩擦力不能改善剥离测试效果,反而导致试样水平端面硫化压力分布不均造成剥离力下降;帘布间敷贴带束胶片虽然能大幅提高剥离力,但从剥离后覆胶状态来看更多反映的是帘布间胶料的撕裂强度;剥离拉伸速率越大,胶料破坏方向越平直,剥离力有下降趋势;硫化时间太长导致的硫化返原可明显降低剥离力。

Study on Peeling Test Method of Steel Cord

In view of the systematic instability of the peeling test results of steel cord,the influencing factors on the peeling force test results were studied.The results showed that the increase of the clamping friction by the use of wrapping cord fabric on the clamping end could not improve the stability of the peeling test results;on the contrary,it led to the uneven distribution of the curing pressure on the horizontal end of the sample surface,resulting in the decrease of the peeling force.Although the reinforcement rubber sheet applied between the cords could greatly increase the peeling force,it reflected more the tearing strength of the rubber compound between the cords based on the rubber coating state after peeling.The greater the peeling rate,the straighter the damage direction of the compound,and the peeling force had a downward trend.Moreover,the reversion of the vulcanization caused by long curing time could significantly reduce the peeling force.