Effect of Heat Treatment on the Physical Properties and Morphology of Hollow Submicron SiO2 Particles

被引：3

作者：

Masalov, V. M. ^{[1
]}

Sukhinina, N. S. ^{[1
]}

Khodos, I. I. ^{[2
]}

Zverkova, I. I. ^{[1
]}

Zhokhov, A. A. ^{[1
]}

Emelchenko, G. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Ossipyan Inst Solid State Phys, Chernogolovka 142432, Moscow Oblast, Russia

[2] Russian Acad Sci, Inst Microelect Technol & High Pur Mat, Chernogolovka 142432, Moscow Oblast, Russia

来源：

JOURNAL OF SURFACE INVESTIGATION | 2021年 / 15卷 / 06期

关键词：

core-shell particles; hollow particles; silica; template synthesis; nanoencapsulation; porosity; FABRICATION; CORE; POLYMERIZATION; THICKNESS;

D O I：

10.1134/S1027451021060136

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Hollow silica particles are obtained by the template method using previously synthesized particles of polymethyl methacrylate. The effect of the type of catalyst (ammonium hydroxide, L-arginine) on the shrinkage and mechanical strength of silica shells during heat treatment is established. Their initial porosity is assessed. The dependence of the shrinkage of hollow particles on the temperature of calcination in the range of 100-900 degrees C is shown. It is found that the particles obtained using ammonium hydroxide as the catalyst have a higher mechanical strength and are less susceptible to deformation during calcination.

引用

页码：1174 / 1180

页数：7

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