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Dispersion stability of Si3N4 nano-particles modified by gamma-methacryloxypropyl trimethoxy silane (MAPTMS) in organic solvent
Cheng, GJ; Qian, JS; Tang, ZF; Ding, GX; Zhu, JB
2015
Source PublicationCERAMICS INTERNATIONAL
Volume41Issue:1Pages:1879—1884
Subtype期刊文献
AbstractSilicon nitride nano-particles (nano-Si3N4) were modified by grafting commercial gamma-methacryloxypropyl trimethoxy silane (MAPTMS) via a direct blending method in solution. The changes and dispersion stability in the nano-Si3N4 were determined using different techniques. Compared with the native nano-Si3N4, the modified nano-Si3N4 showed more stable colloidal dispersion in ethyl acetate. Results of the thermogravimetric analysis (TGA) indicated that the MAPTMS molecules were absorbed or anchored on the surface of nano-Si3N4 particles, which facilitated to hinder the aggregation of nano-Si3N4 particles. The hydroxyl groups on the surface of nano-Si3N4 could interact with silanols groups [-Si-OCH3] of MAPTMS and the formed covalent bands [Si-O-Si] were testified by Fourier transform infrared spectra (PTIR). The MAPTMS can be combined with nano-Si3N4 by covalent bonds, thereby changing the surface properties of nano-Si3N4 and enhancing dispersion in organic media. Nano-Si3N4 particles modified by MAPTMS could be used for polymer blends, thermoplastic elastomers and polymer nanocomposites with better performance and longer life cycle. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
KeywordMacromolecular Coupling Agent Surface-modification Silicon-nitride Nanocomposites Acid Wear Nanoparticles Nanocrystals Tercopolymer Performance
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24432
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Cheng, GJ,Qian, JS,Tang, ZF,et al. Dispersion stability of Si3N4 nano-particles modified by gamma-methacryloxypropyl trimethoxy silane (MAPTMS) in organic solvent[J]. CERAMICS INTERNATIONAL,2015,41(1):1879—1884.
APA Cheng, GJ,Qian, JS,Tang, ZF,Ding, GX,&Zhu, JB.(2015).Dispersion stability of Si3N4 nano-particles modified by gamma-methacryloxypropyl trimethoxy silane (MAPTMS) in organic solvent.CERAMICS INTERNATIONAL,41(1),1879—1884.
MLA Cheng, GJ,et al."Dispersion stability of Si3N4 nano-particles modified by gamma-methacryloxypropyl trimethoxy silane (MAPTMS) in organic solvent".CERAMICS INTERNATIONAL 41.1(2015):1879—1884.
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