硅丙乳液包覆Mg(OH)<sub>2</sub>核壳结构纳米粒子的制备与表征<sup>*</sup>

doi:10.11896/j.issn.1005-023X.2017.018.020

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Abstract To effectively improve the compatibility and dispersion stability of magnesium hydroxide nanoparticles in the silicone-acrylate emulsion, core-shell silicone-acrylate/magnesium hydroxide (SA/MH) hybrid nanoparticles were prepared by means of grafting silicone-acrylate polymer, synthesis with butyl acrylate, methyl methacrylate, acrylic acid and vinyltriethoxysilane as co-monomers, onto the surface of nanoparticles after oleic acid modification. The obtained nanocomposites were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRD), transmission electron microscopy (TEM) and thermogravimetric analysis (TGA). The effect of SA/MH composites on the flame retardancy in waterborne flame-retardant coating was also investigated by combustion test. The results showed that the silicone-acrylate polymer could be successfully grafted on the surface of oleic acid-modified MH and the uniformly-dispersed core-shell structure of SA/MH composites with MH-cores and SA-shell was formed. XRD and TGA indicated that the crystal structure and thermal stability of nanocomposites were not destroyed. Moreover, the coating containing 0.1% SA/MH nanocomposites showed the better fire protection performance with the longer-lasting protection time (113 min), 23% higher than that of undoped coating sample (91 min).

Key words： magnesium hydroxide oleic acid silicone acrylic emulsion core-shell waterborne fireproof coating

Published: 08 May 2018

CLC number:	O632.52
	TQ637.8

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	Articles by authors
	LI Yan'an
	DONG Haiquan
	XU Lina
	LI Jiao

Cite this article:

LI Yan'an,DONG Haiquan,XU Lina, et al. Preparation and Characterization of Silicone-acrylate/Magnesium Hydroxide Core-shell Structured Hybrid Nanoparticles[J]. Materials Reports, 2017, 31(18): 97-101.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.018.020 OR http://www.mater-rep.com/EN/Y2017/V31/I18/97

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