高强度锦纶66 T4（A）在载重斜交轮胎中的应用

以高强度锦纶66T4(A)浸胶帘布替代普通2100dtex／2锦纶6浸胶帘布用作胎体骨架材料生产12．00-20载重斜交轮胎，并进行对比试验。结果表明，锦纶66T4(A)的耐热性能、尺寸稳定性和强力保持率优良；采用锦纶66T4(A)浸胶帘布生产的载重斜交轮胎的耐久性、速度性能、强度和实际行驶里程均有较大提高，轮胎早期胎圈爆破问题得到解决，经济效益良好。

Application of high tenacity nylon 66 cord T4(A) in bias ply truck tire

The high tenacity nylon 66 cord T4(A) was used instead of 2100dtex/2 nylon 6 cord in the carcass ply of 12.00-20 bias ply tire,and a comparative test was made.The results showed that the heat resistance,dimension stability and tenacity retention of nylon 66 cord T4(A) were better than those of 2100dtex/2 nylon 6 cord; the endurance,speed performance,strength and tread life of bias ply truck tire improved significantly by using nylon 66 cord T4(A);and the premature burst of tire bead was eliminated,thus the better economic benefit was obtained.