ADSORPTION OF NITROGEN AND WATER-VAPOR BY ACTIVATED KEVLAR(R) CHARS

被引：44

作者：

FREEMAN, JJ ^{[1
]}

TOMLINSON, JB ^{[1
]}

SING, KSW ^{[1
]}

THEOCHARIS, CR ^{[1
]}

机构：

[1] BRUNEL UNIV,DEPT CHEM,UXBRIDGE UB8 3PH,MIDDX,ENGLAND

来源：

CARBON | 1993年 / 31卷 / 06期

关键词：

ADSORPTION; NITROGEN; WATER VAPOR; CHARS; KEVLAR; FIBROUS ACTIVATED CARBON;

D O I：

10.1016/0008-6223(93)90186-E

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Fibrous activated carbons were prepared from Kevlar(R) (i.e. poly (p-phenylene terephthalamide), in the form of a commercially available woven textile. The cloth was carbonised in nitrogen and activated in either steam or carbon dioxide to varying burn-offs at 1123 K. The resultant activated chars were characterised by nitrogen adsorption, water sorption, and elemental analysis. It was found that significant differences existed between the chars activated in steam and carbon dioxide. Kevlar(R) chars were found to have a greater affinity for water vapour than comparable rayon chars. The pore volume developed in Kevlar(R) chars tended towards a maximum value as the burn-off increased.

引用

页码：865 / 869

页数：5

共 23 条

[1]

ARNELL JC, 1957, 2ND P INT C SURF ACT, V2, P122

[2]

ATKINSON D, 1984, FUNDAMENTALS ADSORPT, P88

[3]

BAILEY A, 1972, Patent No. 1301101

[4] A COMPARISON OF THE ADSORPTION BEHAVIOR OF NITROGEN, ALCOHOLS, AND WATER TOWARDS ACTIVE CARBONS [J].