Fabrication of High Performance Magnetic Rubber from NBR and Fe3O4 via in Situ Compatibilization with Zinc Dimethacrylate

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• 作者：Yukun ChenXunhui Huang ; Zhou Gong ; Chuanhui Xu ; Wenjie Mou
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2017
• 出版时间：January 11, 2017
• 年：2017
• 卷：56
• 期：1
• 页码：183-190
• 全文大小：595K
• ISSN：1520-5045

文摘

Fe₃O₄-based magnetic rubbers are desirable because they take advantage of high elasticity, large elongations, and high magnetic saturation intensity of each component. However, direct compounding of rubbers and Fe₃O₄ usually resulted in low mechanical properties which made the magnetic rubbers unable to satisfy practical applications. In this paper, we prepared nitrile butadiene rubber (NBR)/Fe₃O₄-based magnetic rubbers with good mechanical properties by means of in situ compatibilization using zinc dimethacrylate (ZDMA). Our strategy was based on the polymerization of ZDMA during a peroxide-induced vulcanization, in which the polymerized ZDMA (PZDMA) brought massive Zn²⁺ ion pairs into NBR. Zn²⁺ ion pairs not only increased the polarity of NBR but also strongly interacted with Fe₃O₄ nanoparticles. Because of the graft-PZDMA, the Zn²⁺ ion pairs finally strengthened interactions between Fe₃O₄ nanoparticles and NBR molecules. We hope this report laid an applied foundation for design of high performance magnetic rubbers to satisfy the various potential applications.