Ryu Gyeongchan, Kim Donghyuk, Song Sanghoon, Hwang Kiwon, Kim Wonho
School of Chemical Engineering, Pusan National University, Busan 46241, Korea.
Hankook Tire & Technology Co., Ltd., R&D Center, Daejeon 34127, Korea.
Polymers (Basel). 2021 Sep 7;13(18):3026. doi: 10.3390/polym13183026.
In this study, we examined the feasibility of using epoxidized liquid isoprene rubber (E-LqIR) as a processing aid for truck and bus radial (TBR) tire treads and investigated the effects of the epoxide content on the wear resistance, fuel efficiency, and resistance to extraction of the E-LqIRs. The results confirmed that, compared to the treated distillate aromatic extract (TDAE) oil, the E-LqIRs could enhance the filler-rubber interactions and reduce the oil migration. However, the consumption of sulfur by the E-LqIRs resulted in a lower crosslink density compared to that of the TDAE oil, and the higher epoxide content decreased the wear resistance and fuel efficiency because of the increased glass-transition temperature (). In contrast, the E-LqIR with a low epoxide content of 6 mol% had no significant effect on the of the final compound and resulted in superior wear resistance and fuel efficiency, compared to those shown by TDAE oil, because of the higher filler-rubber interactions.
在本研究中，我们考察了使用环氧化液态异戊二烯橡胶（E-LqIR）作为载重汽车和公共汽车子午线（TBR）轮胎胎面加工助剂的可行性，并研究了环氧化物含量对E-LqIR的耐磨性、燃油效率和抗抽出性的影响。结果证实，与处理过的馏出芳烃抽出物（TDAE）油相比，E-LqIR可增强填料与橡胶的相互作用并减少油的迁移。然而，与TDAE油相比，E-LqIR消耗硫导致交联密度较低，且由于玻璃化转变温度升高，较高的环氧化物含量降低了耐磨性和燃油效率。相比之下，环氧化物含量为6 mol%的低含量E-LqIR对最终胶料的[此处原文缺失相关内容]没有显著影响，并且由于填料与橡胶之间具有更强的相互作用，与TDAE油相比，其具有优异的耐磨性和燃油效率。
