钕系BR在全钢载重子午线轮胎胎侧胶中的应用

将钕纱ＢＲ（ＮｄＢＲ）用于全钢载重子午是胶料与目前广泛使用的钕自ＢＲ（ＮｉＢＲ）进行小配合和车间大料对比试验。结果表明，ＮｄＢＲ胶料综合物理性能与后者相比有了很大提高，胎侧老化前后的耐疲劳性能以及抗裂性能提高幅度理然的表面光滑、挤出膨胀率小，尺寸稳定性高，ＮｄＢＲ的挤出性能比后者好。有和ＮｄＢＲ作胎侧胶所制１０．００Ｒ２０试验轮胎的耐久性能较使用ＮｉＢＲ作胎侧胶的轮胎提高５０％。

Application of NdBR to all-steel radial truck tire sidewall

NdBR was applied to the all steel radial truck tire sidewall compound in laboratory and work shop production and compared with widely used NiBR.The results showed that the comprehensive physical properties of NdBR compound were much better than those of NiBR compound,particularly the fatigue and tear properties of compound before and after aging;and the NdBR compound possessed smoother extrudate surface,smaller die swell and higher dimensional stability.The endurance of 10 00R20 test tire with NdBR sidewall was increased by 50% when compared to that with NiBR sidewall.