Synthesis of migration-resistant antioxidant and its application in natural rubber composites
Li Fade,
Zhu Xinxin,
Cui Jiyuan,
Ding Shuqiang,
Yu Mengmeng,
Wang Hongzhen
Affiliations
Li Fade
Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
Zhu Xinxin
Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
Cui Jiyuan
Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
Ding Shuqiang
Zhongce Rubber (Tianjin) Co., Ltd., Tianjin, 300450, China
Yu Mengmeng
Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
Wang Hongzhen
Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
In this article, a novel migration-resistant antioxidant (CGE-g-PPDA) was synthesized using cardanol glycidyl ether (CGE) and p-aminodiphenylamine (PPDA) and characterized by infrared spectroscopy, indicating that the antioxidant has been successfully synthesized. CGE-g-PPDA and other different types of antioxidants were added to natural rubber (NR) to make anti-aging NR composites, which were tested and characterized by processing properties, aging resistance, thermal stability, cross-linking density retention properties, and migration resistance. Comparative results showed that CGE-g-PPDA could reduce the Mooney viscosity of NR, improve its processing performance, prolong the oxidation induction time of materials, give long-term protection to the rubber, and improve the cross-linking retention rate of materials. In addition, the migration resistance and solvent extraction resistance of antioxidant CGE-g-PPDA were significantly better than that of antioxidant 4020, with higher stability. CGE-g-PPDA, as a new type of migration-resistant antioxidant, has a potential application value.
