Effect of novel supported vulcanizing agent on the interfacial interaction and strain-induced crystallization properties of natural rubber nanocomposites. (18th July 2018)

• Record Type: Journal Article
• Authors: Chen, Lijuan; Guo, Xiaohui; Luo, Yuanfang; Jia, Zhixin; Bai, Jie; Chen, Yongjun; Jia, Demin
• Is Part Of: Polymer. Volume 148(2018)
• Page Start: 390
• Page End: 399
• Publication Date: 2018-07-18
• Subjects: Functional nanoparticle -- Natural rubber -- Vulcanizing agent -- Interfacial interaction -- Strain-induced crystallization behaviors; Polymers -- Periodicals; Polymerization -- Periodicals; Polymères -- Périodiques; Polymérisation -- Périodiques; 547.7
• DOI: 10.1016/j.polymer.2018.06.058
• Languages: English
• ISSNs: 0032-3861

Abstract

Abstract: The influence of the novel vulcanizing agent, silica supported sulfur monochloride (silica-s-S), comparing with sulfur on the filler-rubber interfacial interaction, mechanical properties and the strain-induced crystallization behaviors were investigated. Due to the formation of interparticle domain, silica-s-S immobilized more rubber chains approaching its surface as the crosslinking points than sulfur vulcanization system. Furthermore, the tightly immobilized rubber chains on silica-s-S surface bring to the significant enhancement of mechanical properties of NR nanocomposites. Meanwhile, the immobilized rubber chains also induced the formation of highest initial crystallinity index and slower decreasing lateral crystallite size with increasing strain ratio. Silica-s-S with more tightly immobilized rubber chains approaching its surface shown better reinforcing effect and strain-induced crystallization behaviors on rubber than that of sulfur vulcanization system. Graphical abstract: Image 1 Highlights: A novel vulcanizing agent Silica-s-S can vulcanize the rubber and also work as an interfacial modifier. Silica-s-S simultaneously endowed NR with excellent mechanical property than that of sulfur vulcanization system. The strain-induced crystallization properties of NR nanocomposites cured by different vulcanizators are investigated.