| Mechanism of Surface Modification for Sericite |
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| 作者姓名： | 高惠民 |
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| 作者单位： | School of |
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| 摘 要： | Surface modification of sericite by wet method was conducted with the addition of 1.0 % （w/w） silane. The resulting wetting contact angle and activity ratio of sericite were 130° and 98% respectively. Good pre-evaluation indexes of oil value （40.8%） and dispersivity （14.0 mL） were obtained. When 30 % of sericite was filled into acrylonitrile butadiene styrene（ABS） plastic, the bending strength and tensile strength of the composite material were reduced by 7% and 14.3% in comparison to those of pure ABS plastic, while the rigidity was increased by 3 times, and the impact strength and breaking elongation were reduced significantly. The mechanism of surface modification was investigated and the configuration of silane coupling agent on the surface of sericite was given. Infrared （IR） spectroscopic analysis indicates that the adsorption of silane on the surface of sericite belongs to chemical adsorption.
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| 关 键 词： | 绢云母 表面修饰 湿法 硅烷 |
| 收稿时间： | 24 March 2006 |
| 修稿时间： | 2006-03-24 |
Mechanism of surface modification for sericite |
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| Gao?Huimin,Yuan?Jizu,Wang?Xiangrong,Guan?Junfang,Zhang?Lingyan,Jing?Zhengqiang,Mao?Yilin.Mechanism of Surface Modification for Sericite[J].Journal of Wuhan University of Technology. Materials Science Edition,2007,22(3):470-472. |
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| Authors: | Gao Huimin Yuan Jizu Wang Xiangrong Guan Junfang Zhang Lingyan Jing Zhengqiang Mao Yilin |
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| Affiliation: | (1) School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China |
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| Abstract: | Surface modification of sericite by wet method was conducted with the addition of 1.0 % (w/w) silane. The resulting wetting contact angle and activity ratio of sericite were 130° and 98% respectively. Good pre-evaluation
indexes of oil value (40.8%) and dispersivity (14.0 mL) were obtained. When 30 % of sericite was filled into acrylonitrile
butadiene styrene(ABS) plastic, the bending strength and tensile strength of the composite material were reduced by 7% and
14.3% in comparison to those of pure ABS plastic, while the rigidity was increased by 3 times, and the impact strength and
breaking elongation were reduced significantly. The mechanism of surface modification was investigated and the configuration
of silane coupling agent on the surface of sericite was given. Infrared (IR) spectroscopic analysis indicates that the adsorption
of silane on the surface of sericite belongs to chemical adsorption.
Funded by the National Eleventh-Five-Year Project of China(No.2006BAB12B01) |
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| Keywords: | sericite surface modification ABS plastic |
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