The impact of esterification on the properties of starch/natural rubber composite |
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| Authors: | Zhi-Fen Wang Zheng Peng Si-Dong Li Hua Lin Ke-Xi Zhang Xiao-Dong She Xin Fu |
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| Affiliation: | 1. Material and Chemistry Engineering College, Hainan University, Danzhou 571737, PR China;2. Chinese Agricultural Ministry Key Laboratory of Tropical Crop Products Processing, Agricultural Product Processing Research Institute, Chinese Academy of Tropical Agriculture Sciences, Zhanjiang 524001, PR China;3. College of Science, Guangdong Ocean University, Zhanjiang 524088, PR China;1. School of Biotechnology and Food Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei, Anhui 230009, PR China;2. State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, PR China;1. Department of Polymer Science and Rubber Technology, CUSAT, Kerala, India;2. Research Department of Chemistry, CMS College, Kottayam 690 110, Kerala, India;3. International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam 686 560, Kerala, India;4. School of Chemical Sciences, Mahatma Gandhi University, Kottayam 686 560, Kerala, India;5. R.H. Smith Institute of Plant Sciences and Genetics, Hebrew University of Jerusalem, 76100, Israel;1. Institute of Chemistry, Environmental Protection and Biotechnology, Faculty of Mathematics and Natural Sciences, Jan Dlugosz University in Czestochowa, 42-200 Czestochowa, Poland;2. Institute of Technical Biochemistry, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, 90-924 Lodz, Poland;1. Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab. for Biomass Chemical Utilization, Key and Open Lab. of Forest Chemical Engineering, SFA; Key Lab. of Biomass Energy and Material, Nanjing 210042, Jiangsu Province, China;2. Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu Province, China |
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| Abstract: | The starch was modified by esterification, and the starch/natural rubber composite was prepared by blending the modified starch with natural rubber latex. The morphology, thermal stability and mechanical properties of the composite were investigated. The results show that the crystal structure of starch in the composite disappears after modification with esterification, and the starch particles with an average size around 200 nm homogenously disperse throughout the natural rubber (NR) matrix. The thermal stability of composite is improved significantly after the modification with starch. The mechanical properties of composite are enhanced with the increase of starch loading. The composite possesses the best properties at the starch xanthate content of 20 parts per hundred rubber (phr). The enhanced thermal stability and mechanical properties of modified starch/NR composite are mainly due to the improved phase interface interactions between rubber and starch. |
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