z-logo
open-access-imgOpen Access
Preparation of Silica Microcapsules Containing Octadecane as Temperature-adjusting Powder
Author(s) -
Chunyan Miao,
Gang Lü,
Youwei Yao,
Guoyi Tang,
Duan Weng,
Jianhui Qiu,
Mamoru MIZUNO
Publication year - 2007
Publication title -
chemistry letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.492
H-Index - 114
eISSN - 1348-0715
pISSN - 0366-7022
DOI - 10.1246/cl.2007.494
Subject(s) - octadecane , chemistry , thermogravimetric analysis , emulsion , thermal stability , polyvinyl alcohol , melting point , chemical engineering , hydrolysis , condensation , tetraethyl orthosilicate , sodium silicate , polymer chemistry , organic chemistry , thermodynamics , engineering , physics
Spherical microcapsules of silica-shelled octadecane are prepared in the presence of polyvinyl alcohol in an O/W emulsion. The silica shell forms via hydrolysis and condensation from tetraethyl silicate with acetatic acid as catalyst. The thermogravimetric curves show that the microcapsules have thermal stability superior to that of octadecane. The latent heat and the melting point of microcapsule are 162 J.g(-1) and 30 degrees C, respectively.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here
Accelerating Research

Address

John Eccles House
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom