Alcogel and aerogel of nitrocellulose formed in nitrocellulose/acetone/ethanol ternary system

Yunhua Zhang; Feijun Wang; Kezheng Gao; Yanhua Liu; Ziqiang Shao

doi:10.1080/00914037.2015.1129949

Alcogel and aerogel of nitrocellulose formed in nitrocellulose/acetone/ethanol ternary system

Yunhua Zhang, Feijun Wang^*, Kezheng Gao, Yanhua Liu, Ziqiang Shao

^*此作品的通讯作者

材料学院

Beijing Institute of Technology

科研成果: 期刊稿件 › 文章 › 同行评审

10 引用（Scopus）

摘要

Nitrocellulose (NC) alcogels were formed in NC/acetone/ethanol ternary system and NC aerogels were prepared from NC alcogels after drying under supercritical CO₂ (scCO2). NC alcogel with lower modulus was formed in the ternary system with a higher ethanol ratio. The densities and porosities of NC aerogels were related directly to the initial ethanol content. The NC aerogels clearly retained the crystalline structure of NC powder. NC aerogels that were formed in the system with higher ethanol content had larger pore size distribution range, larger average pore diameter, and larger mesopore and macropore volume. The thermal decomposition of NC aerogel was more accelerated and more acute compared with NC powders.

源语言	英语
页（从-至）	377-383
页数	7
期刊	International Journal of Polymeric Materials and Polymeric Biomaterials
卷	65
期	8
DOI	https://doi.org/10.1080/00914037.2015.1129949
出版状态	已出版 - 23 5月 2016

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Zhang, Y., Wang, F., Gao, K., Liu, Y., & Shao, Z. (2016). Alcogel and aerogel of nitrocellulose formed in nitrocellulose/acetone/ethanol ternary system. International Journal of Polymeric Materials and Polymeric Biomaterials, 65(8), 377-383. https://doi.org/10.1080/00914037.2015.1129949

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title = "Alcogel and aerogel of nitrocellulose formed in nitrocellulose/acetone/ethanol ternary system",

abstract = "Nitrocellulose (NC) alcogels were formed in NC/acetone/ethanol ternary system and NC aerogels were prepared from NC alcogels after drying under supercritical CO2 (scCO2). NC alcogel with lower modulus was formed in the ternary system with a higher ethanol ratio. The densities and porosities of NC aerogels were related directly to the initial ethanol content. The NC aerogels clearly retained the crystalline structure of NC powder. NC aerogels that were formed in the system with higher ethanol content had larger pore size distribution range, larger average pore diameter, and larger mesopore and macropore volume. The thermal decomposition of NC aerogel was more accelerated and more acute compared with NC powders.",

keywords = "Nitrocellulose, nitrocellulose aerogel, nitrocellulose alcogel, phase separation",

author = "Yunhua Zhang and Feijun Wang and Kezheng Gao and Yanhua Liu and Ziqiang Shao",

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T1 - Alcogel and aerogel of nitrocellulose formed in nitrocellulose/acetone/ethanol ternary system

AU - Zhang, Yunhua

AU - Wang, Feijun

AU - Gao, Kezheng

AU - Liu, Yanhua

AU - Shao, Ziqiang

PY - 2016/5/23

Y1 - 2016/5/23

N2 - Nitrocellulose (NC) alcogels were formed in NC/acetone/ethanol ternary system and NC aerogels were prepared from NC alcogels after drying under supercritical CO2 (scCO2). NC alcogel with lower modulus was formed in the ternary system with a higher ethanol ratio. The densities and porosities of NC aerogels were related directly to the initial ethanol content. The NC aerogels clearly retained the crystalline structure of NC powder. NC aerogels that were formed in the system with higher ethanol content had larger pore size distribution range, larger average pore diameter, and larger mesopore and macropore volume. The thermal decomposition of NC aerogel was more accelerated and more acute compared with NC powders.

AB - Nitrocellulose (NC) alcogels were formed in NC/acetone/ethanol ternary system and NC aerogels were prepared from NC alcogels after drying under supercritical CO2 (scCO2). NC alcogel with lower modulus was formed in the ternary system with a higher ethanol ratio. The densities and porosities of NC aerogels were related directly to the initial ethanol content. The NC aerogels clearly retained the crystalline structure of NC powder. NC aerogels that were formed in the system with higher ethanol content had larger pore size distribution range, larger average pore diameter, and larger mesopore and macropore volume. The thermal decomposition of NC aerogel was more accelerated and more acute compared with NC powders.

KW - Nitrocellulose

KW - nitrocellulose aerogel

KW - nitrocellulose alcogel

KW - phase separation

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Alcogel and aerogel of nitrocellulose formed in nitrocellulose/acetone/ethanol ternary system

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