文献类型：期刊文献

英文题名：Self-assembled natural rubber/silica nanocomposites: Its preparation and characterization

作者：Peng, Zheng[1,2]; Kong, Ling Xue[2]; Li, Si-Dong[3]; Chen, Yin[1]; Huang, Mao Fang[1]

机构：[1]Chinese Acad Tropical Agr Sci, Agr Prod Proc Res Inst, Chinese Agr Minst key Lab Nat Rubber Proc, Zhanjiang 100864, Peoples R China;[2]Univ S Australia, Ctr Adv Mfg Res, Adelaide, SA 5001, Australia;[3]Guangdong Ocean Univ, Coll Sci, Zhanjiang 524088, Peoples R China

年份：2007

卷号：67

期号：15-16

起止页码：3130

外文期刊名：COMPOSITES SCIENCE AND TECHNOLOGY

收录：SCI-EXPANDED(收录号：WOS:000250910600010)、、EI(收录号：20074210872403)、Scopus(收录号：2-s2.0-35248852830)、WOS

语种：英文

外文关键词：natural rubber; latex; silica; nanocomposite; self-assembly

外文摘要：A novel natural rubber/silica (NR/SiO2) nanocomposite is developed by combining self-assembly and latex-compounding techniques. The results show that the SiO2 nanoparticles are homogenously distributed throughout NR matrix as nano-clusters with an average size ranged from 60 to 150 nm when the SiO2 loading is less than 6.5 wt%. At low SiO2 contents (<= 4.0 wt%), the NR latex (NRL) and SiO2 particles are assembled as a core-shell structure by employing poly (diallyldimethylammonium chloride) (PDDA) as an inter-medium, and only primary aggregations of SiO2 are observed. When more SiO2 is loaded, secondary aggregations Of SiO2 nanoparticles are gradually generated, and the Size Of SiO2 cluster dramatically increases. The thermal/thermooxidative resistance and mechanical properties of NR/SiO2 nanocomposites are compared to the NR host. The nanocomposites, particularly when the SiO2 nanoparticles are uniformly dispersed, possess significantly enhanced thermal resistance and mechanical properties, which are strongly depended on the morphology of nanocomposites. The NR/SiO2 has great potential to manufacture medical protective products with high performances. (C) 2007 Elsevier Ltd. All rights reserved.