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Investigation into the surface modification of aragonite whiskers
Jing, Yanwei1,2; Nai, Xueying1; Zhu, Donghai1; Dang, Li1,2; Wang, Yabin1; Li, Wu1
2016-03-01
发表期刊SURFACE AND INTERFACE ANALYSIS
卷号48期号:3页码:126-131
文章类型Article
摘要Aragonite whiskers (AWs) were treated with several fatty acid surfactants and silane coupling agent in order to determine the optimal modifier by using contact angle measurements. The results revealed that the AWs modified by fatty acids showed more remarkable increase in the contact angle than by silane, suggesting the former were preferentially applied in modifying AWs. While the samples coated with fatty acids exhibited hydrophobicity with contact angles ranging from 104.08 degrees to 137.87 degrees with increasing of carbon chain length. Therefore, the highest contact angle of AWs treated by oleic acid was discussed in detail as an example, which was characterized by field emission scanning electron microscope (FESEM), transmission electron microscopy (TEM), thermo-gravimetry analyses (TGA), X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FTIR). FESEM and TEM results showed a thin layer coated on the modified sample surface. Both the results of TGA and XPS confirmed organic groups existed in the sample of AWs treated by oleic acid. FTIR demonstrated that calcium dioleate was formed in the modification process. Further, modification mechanism was proposed based on the obtained results. Copyright (c) 2016 John Wiley & Sons, Ltd.
关键词Aragonite Whiskers Fatty Acid Surface Modification Modification Mechanism
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]CALCIUM-CARBONATE ; REINFORCED CEMENT ; COMPOSITES ; ACIDS ; XPS
收录类别SCI
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Physical
WOS记录号WOS:000369871600002
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6294
专题青海盐湖研究所知识仓储
盐湖资源综合利用工程技术中心
作者单位1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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GB/T 7714
Jing, Yanwei,Nai, Xueying,Zhu, Donghai,et al. Investigation into the surface modification of aragonite whiskers[J]. SURFACE AND INTERFACE ANALYSIS,2016,48(3):126-131.
APA Jing, Yanwei,Nai, Xueying,Zhu, Donghai,Dang, Li,Wang, Yabin,&Li, Wu.(2016).Investigation into the surface modification of aragonite whiskers.SURFACE AND INTERFACE ANALYSIS,48(3),126-131.
MLA Jing, Yanwei,et al."Investigation into the surface modification of aragonite whiskers".SURFACE AND INTERFACE ANALYSIS 48.3(2016):126-131.
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