Cure Kinetics and Morphology of Natural Rubber Reinforced by the In Situ Polymerization of Zinc Dimethacrylate
Cure Kinetics and Morphology of Natural Rubber Reinforced by the In Situ Polymerization of Zinc Dimethacrylate
复制标题
二甲基丙烯酸锌原位聚合增强天然橡胶的硫化动力学和形貌
DOI：
10.1002/app.31045
复制
发表时间：
2010-01-05
影响因子：
3
通讯作者：
Wu, Jinrong
中科院分区：
文献类型：
--
作者：
Nie, Yijing;Huang, Guangsu;Wu, Jinrong
制备了二甲基丙烯酸锌（ZDMA）增强过氧化物固化天然橡胶（NR）。系统地研究了ZDMA的共交联作用以及固化过程中ZDMA诱导的相形态的形成和演变。用比热仪和差示扫描量热仪对固化动力学进行了研究，得到了固化动力学参数和表观活化能。通过透射电镜观察复合材料的相形态，发现在橡胶基体中存在分离的聚二甲基丙烯酸锌（PZDMA）纳米相。复合材料中同时存在共价交联、物理吸附和离子交联，采用平衡溶胀法测定。在此基础上，提出了新的NR/ZDMA复合材料微观结构模型和离子交联模型。(C) 2009 Wiley期刊公司[j] .应用化学学报（自然科学版）33 (2),2010
Peroxide-cured natural rubber (NR) reinforced by zinc dimethacrylate (ZDMA) was prepared. The cocrosslinking action of ZDMA and the formation and evolution of the phase morphology induced by ZDMA during the curing process were systematically investigated. A curemeter and a differential scanning calorimeter were used to investigate the cure kinetics, and the kinetic parameters and the apparent activation energy were obtained. The phase morphology of the composites obtained from transmission electron microscopy revealed that separated nanophases of poly(zinc dimethacrylate) (PZDMA) existed in the rubber matrix. Covalent crosslinking, physical adsorption, and ionic crosslinking simultaneously existed in the composites, and they were determined with an equilibrium swelling method. On the basis of this, new microstructure models of NR/ZDMA composites and ionic crosslinking were put forward. (C) 2009 Wiley Periodicals, Inc. I Appl Polym Sci 115: 99-106, 2010