Open AccessA Novel Method for Oblate Spherical Powder with Adjustable Combustion Property
Author(s) -
Han Gu,
Yajun Ding,
Zh L. Xiao,
Sanjiu Ying,
Wendi Wu
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1507/2/022007
Subject(s) - materials science , microporous material , combustion , oblate spheroid , composite material , chemical engineering , chemistry , organic chemistry , classical mechanics , physics , engineering
In order to obtain the oblate spherical power with adjustable combustion property, a novel method was put forward combining the microporous technology and the polymer deterring technology. In this work, the oblate spherical power was foamed with the cell structure by supercritical carbon dioxide (SC-CO 2 ), and then poly(neopentanediol adipate) (NA) was employed as the deterrent to modify the energy releasing rates in the surface. The combustion property of oblate spherical power under different processing conditions was investigated by the closed bomb tests. The results indicated that the microporous oblate spherical powder displayed the desired progressive combustion, and the combustion property of microporous oblate spherical powder could be adjusted by controlling the desorption time, foaming temperature, NA content, desensitization time and desensitization temperature. The spherical powder with skin-core structure foamed by SC-CO 2 and deterred by NA provides a novel and promising method to realize the progressive combustion performance without dibutyl phthalate (DBP).