Response Surface Methodology for Design of Porous Hollow Sphere Thermal Insulator

2017 4th International Conference on Advanced Materials, Mechanics and Structural Engineering

材料科学;机械制造

Shohani, Nazanin^1,2 ; Pourmahdian, Saeed^2 ; Hadavand, Behzad Shirkavand^1

Department of Polymer Engineering, Amirkabir University of Technology, Tehran, Iran^1

Department of Resin and Additives, Institute for Color Science and Technology, Tehran, Iran^2

关键词: Core shell structure;    Hollow silica spheres;    Initiator concentration;    Response surface method;    Response surface methodology;    Sacrificial templates;    Stabilizer concentration;    Tetraethyl orthosilicates;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/269/1/012073/pdf
DOI  :  10.1088/1757-899X/269/1/012073

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this study, response surface method is used for synthesizing polystyrene (PS) as sacrificial templates and optimizing the particle size. Three factors of initiator, stabilizer concentration and also stirring rate were selected as variable factors. Then, three different concentration of tetraethyl orthosilicate (TEOS) added to reaction media and core-shell structure with PS core and silica shell was developed. Finally, core-shell structure was changed to hollow silica sphere for using as thermal insulator. We observed that increased initiator concentration caused to larger PS particles, increase the stirring rate caused the smaller PS and also with increased the stabilizer concentration obtained that particle size decrease then after 2.5% began to increase. Also the optimum amount of TEOS was found.