Resorcinol/formaldehyde aerogel fine powders with nanopore structure prepared by supercritical CO2 drying techniques

被引：0

作者：

Lee, JY ^{[1
]}

Lee, KN ^{[1
]}

Lee, HJ ^{[1
]}

Kim, JH ^{[1
]}

机构：

[1] Yonsei Univ, Dept Chem Engn, Seoul 120749, South Korea

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2002年 / 8卷 / 06期

关键词：

resorcinol/formaldehyde aerogel; nano porous material; supercritical CO2 technique;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The preparation of resorcinol/formaldehyde (R/F) aerogel powders with nanopore structure by means of the supercritical CO2 drying technique has been studied. Spherical morphology of R/F aerogel powders was confirmed by scanning electron microscopy. The sizes of these fine powders ranged from 4 micrometer to a few hundred micrometers. The particle sizes were controlled by the emulsification conditions. The structure of R/F aerogel powder was revealed by FT-IR and BET analysis. The surface area and pore size of R/F aerogel powders with a fibrous-like network are in the range of 400 m(2)/g to 800 m(2)/g and less than 100 nm, respectively.

引用

页码：546 / 551

页数：6

共 29 条

[1] SURFACE CHARACTERIZATION BY FT-IR SPECTROSCOPY OF AN AEROGEL PRECURSOR TO CORDIERITE [J].