芳纶浆粕在自行车轮胎防刺层中的应用

Application of Aramid Pulp in Anti-stab Layer of Bicycle Tire

研究芳纶短纤维防刺层自行车轮胎的结构设计、制备方法以及胎体强度和粘合性能的影响因素。结果表明:芳纶浆粕更适用于防刺层;随着芳纶浆粕用量的增大,胎体强度明显提高,但粘合性能下降;随着防刺层厚度的增大,胎体强度增大;在正常硫化区间内,胎体强度和粘合性能波动较小;但随着欠硫或过硫程度的增大,胎体强度和粘合性能的下降幅度较大。

The structure design and preparation method of the bicycle tire with aramid short fiber antistab layer and the influencing factors of the strength and adhesion of the carcass were studied. The results showed that aramid pulp was suitable for the anti-stab layer. With the increase in the amount of aramid pulp,the strength of the carcass was significantly improved,but the adhesion decreased. With the increase of the thickness of the anti-stab layer,the strength of the carcass was improved. During the normal vulcanization time range,the strength and adhesion of the carcass fluctuated slightly. However,as the degree of under-cure or overcure increased,the strength and adhesion of the carcass decreased significantly.