Plasticization Effect of Bio-Based Plasticizers from Soybean Oil for Tire Tread Rubber

Polymers

Haoshu Xu¹  Neng Ye¹  Liqun Zhang¹  Tao Fan¹  Weidong Wu¹  Zhao Wang¹  Danling Wang²  Daye Huang² 

[1] State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China;Zhongce Rubber Group Co., Ltd., Hangzhou 310014, China;

关键词: modified soybean oil;    plasticization effect;    crosslink density;    modulus;   

DOI  :  10.3390/polym12030623

来源: DOAJ

【 摘 要 】

Modified soybean oil (MSO) is synthesized from soybean oil (SO) and sulfur, aiming to reduce the double bond quantity of SO and avoid harmful effects on the crosslink density and mechanical properties of rubber. MSO modified with different weight percentages of sulfur is then used to plasticize tire tread rubber (TR). It is found that the crosslink density and modulus of MSO- plasticized rubber are significantly improved compared with that of SO-plasticized TR. MSO modified with 6 wt % sulfur (MSO-6%) exhibits the best plasticization effect on TR, thus, the plasticization effect of MSO-6% on TR was further studied by adjusting its additive content. Thereafter, the Mooney viscosity, Payne effect, mechanical property of different amount of MSO-6% plasticized TR are studied to investigate their plasticization effect. At the same additive content of plasticizer, the plasticization effect of MSO-6% and a commonly used aromatic hydrocarbon plasticizer (AO) is compared to determine the potential application of MSO on tire tread rubber. It is found MSO shows similar plasticization effect on TR compared with AO. More important, the aging resistance property and wear resistance property of MSO-6% plasticized rubber are better than those of AO-plasticized rubber. Therefore, MSO-6% is a promising bio-based plasticizer for tire tread rubber.

【 授权许可】

Unknown