Study on Properties of SiO2 Gel Dry Water Powders

被引：0

作者：

Shi Y. ^{[1
]}

Feng M. ^{[1
]}

Chen G. ^{[1
]}

Xiao H. ^{[1
]}

Shi G. ^{[1
]}

Cao C. ^{[1
]}

He S. ^{[1
]}

机构：

[1] School of Safety Science and Emergency Management, Wuhan University of Technology, Wuhan

来源：

He, Song (hsong@whut.edu.cn) | 1600年 / Cailiao Daobaoshe/ Materials Review卷 / 34期

关键词：

Bulk density; Dry water; Fluidity; Particle size distribution; SiO[!sub]2[!/sub] gel;

D O I：

10.11896/cldb.19070207

中图分类号：

学科分类号：

摘要：

In this paper,a gel dry water was prepared using SiO2 gel as the core and hydrophobic nano SiO2 particle as the shell under high-speed shear. Powder parameters like fluidity, stability, particle size distribution, bulk density and water repellency were studied. The results show that compared with the traditional dry water powder, SiO2 gel dry water powder shows smaller repose angle, larger outflow velocity and better fluidity. The traditional dry water powder can be destroyed at the centrifuge speed of 2 000 r/min, while SiO2 gel dry water powder only agglo-merate when the centrifuge speed reaches 6 000 r/min. The bulk density of SiO2 gel dry water powder is smaller than dry water powder. For the existence of hydrophobic nano SiO2 shell, the as-prepared SiO2 gel dry water powder presents excellent water repellency. © 2020, Materials Review Magazine. All right reserved.

引用

页码：16025 / 16030

页数：5

共 19 条

[1] Brunner H, Schutte D, Schmitz F T, Et al., U.S. patent application, (1968)
[2] Allan B D., (1977)
[3] Binks B P, Murakami R., Nature Materials, 5, 11, (2006)
[4] Saleh K, Forny L, Guigon P, Et al., Chemical Engineering Research and Design, 89, 5, (2011)
[5] Forny L, Saleh K, Pezron I, Et al., Powder Technology, 189, 2, (2009)
[6] Zhang Qiang, Wu Qiang, Zhang Baoyong, Et al., Journal of China University of Mining & Technology, 4, (2014)
[7] Huajie Liang, Study on the properties and gas hydrate of dry water, (2010)
[8] Chuanbao Qiu, Guangdong Chemical Industry, 39, 12, (2012)
[9] Zhang Diwei, Ma Xinxu, Su Kunsheng, Et al., Guangzhou Chemical Industry, 42, 18, (2014)
[10] Qiang Wu, Zhang Baoyong, Journal of China University of Mining & Technology, 26, 4, (2010)

← 1 2 →