Bio‐oil based plasticizers have gained great attention in rubber industry as alternatives of petro‐based plasticizers with high content of polycyclic aromatic hydrocarbons. In this work, five fatty acid benzyl esters were synthesized by the esterification of fatty acids (lauric acid, myristic acid, palmitic acid, stearic acid, and oleic acid, which are obtained after hydrolysis of some vegetable oils) with benzyl alcohol. They were further applied as plasticizers in silica‐filled solution‐polymerized styrene‐butadiene rubber/butadiene rubber (SSBR/BR) composites in order to study the structure‐property relationship, compared with treated distillate aromatic extract (TDAE) as standard. The composites were studied for their processability, curing, static, and dynamic mechanical properties by developing through compatibility between bio‐plasticizers and polymer matrix. The results show that benzyl laurate with suitable hydrocarbon chain length and benzyl oleate with a carbon‐carbon double bond have comparatively improved performance compared to TDAE in the silica‐filled SSBR/BR composites.

中文翻译：

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脂肪酸苄酯作为二氧化硅填充的溶液聚合的丁苯橡胶/丁二烯橡胶复合材料中的生物基增塑剂

生物油基增塑剂作为橡胶基增塑剂的替代品已在橡胶工业中引起了高度关注，而石油基增塑剂具有高含量的多环芳烃。在这项工作中，通过用苄醇酯化脂肪酸（月桂酸，肉豆蔻酸，棕榈酸，硬脂酸和油酸，它们是在某些植物油水解后获得的）合成了五种脂肪酸苄酯。与标准的处理后的馏出芳烃萃取物（TDAE）相比，它们还被用作增塑剂，用于填充二氧化硅的溶液聚合的苯乙烯-丁二烯橡胶/丁二烯橡胶（SSBR / BR）复合材料中。研究了复合材料的可加工性，固化性，静态，通过生物增塑剂与聚合物基体之间的相容性发展来获得动态力学性能。结果表明，与TDAE相比，在二氧化硅填充的SSBR / BR复合材料中，具有合适烃链长度的月桂酸苄酯和具有碳-碳双键的油酸苄酯具有相对改善的性能。