文献类型：期刊文献

中文题名：Effect of neodymium stearate on cure and mechanical properties of epoxidized natural rubber

英文题名：Effect of neodymium stearate on cure and mechanical properties of epoxidized natural rubber

作者：Luo Yongyue[1];Yang Changjin[1,2];Wang Yueqiong[1];He Canzhong[2];Zhong Jieping[3];Liao Shuangquan[2];Peng Zheng[1];Liu Xingxun[4]

机构：[1]Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Chinese Agr Minist Key Lab Trop Crop Prod Proc, Zhanjiang 524001, Peoples R China;[2]Hainan Univ, Sch Mat & Chem Engn, Haikou 570228, Peoples R China;[3]Guangdong Ocean Univ, Sch Sci, Zhanjiang 524088, Peoples R China;[4]S China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China

年份：2012

卷号：30

期号：7

起止页码：721

中文期刊名：稀土学报：英文版

外文期刊名：JOURNAL OF RARE EARTHS

收录：SCI-EXPANDED(收录号：WOS:000308123800017)、CSTPCD、、EI(收录号：20123615392284)、Scopus(收录号：2-s2.0-84865499881)、CSCD2011_2012、WOS、CSCD

基金：Project supported by the National Program on Key Basic Research Project of China (973 Program, 2010CB635109) and Ministry of Science and Technology R & D research institutes (contract grant number: 2008EG134285)

语种：英文

中文关键词：环氧化天然橡胶;力学性能;硬脂酸;固化;傅里叶变换红外光谱;FTIR分析;钕;网络结构

外文关键词：neodymium stearate; cure; ENR25; crosslink density; mechanical properties; rare earths

中文摘要：The effect of neodymium stearate (NdSt) on cure and mechanical properties of expoxidized natural rubber with 25 mol.% epoxida-tion (ENR25) was studied in the concentration range of 0 to 2 phr, and the relationship between structure and mechanical properties of ENR25 vulcanizates was also discussed. Neodymium sterate was synthesized by saponification of stearic acid with newly formed rare earth hydroxide in water medium, and the structure of NdSt was investigated by Fourier transform infrared spectroscopy (FTIR). Crosslinking den-sity of vulcanized natural rubber was studied by equilibrium swelling method. The results indicated that the interaction force between carbox-ylic ion of NdSt prepared in the lab and Nd ion was mainly ionic bond through FTIR analysis. NdSt could accelerate the vulcanization of ENR25 and influence the network structure of ENR25 vulcanizates. The incorporation of 1 phr NdSt for ENR25 vulcanizates showed the op-timal aging resistnce.

外文摘要：The effect of neodymium stearate (NdSt) on cure and mechanical properties of expoxidized natural rubber with 25 mol.% epoxidation (ENR25) was studied in the concentration range of 0 to 2 phr, and the relationship between structure and mechanical properties of ENR25 vulcanizates was also discussed. Neodymium sterate was synthesized by saponification of stearic acid with newly formed rare earth hydroxide in water medium, and the structure of NdSt was investigated by Fourier transform infrared spectroscopy (FTIR). Crosslinking density of vulcanized natural rubber was studied by equilibrium swelling method. The results indicated that the interaction force between carboxylic ion of NdSt prepared in the lab and Nd ion was mainly ionic bond through FTIR analysis. NdSt could accelerate the vulcanization of ENR25 and influence the network structure of ENR25 vulcanizates. The incorporation of 1 phr NdSt for ENR25 vulcanizates showed the optimal aging resistance.