Surface characterization of nylon 66 by inverse gas chromatography and contact angle

被引：12
|
作者：
Huang, Xiaohua [1 ]
Shi, Baoli [1 ]
Li, Bin [1 ]
Li, Liping [1 ]
Zhang, Xiucheng [1 ]
Zhao, Shu [1 ]
机构：
[1] NE Forestry Univ, Coll Sci, Heilongjiang Key Lab Flame Retarded Polymer Mat, Harbin 150040, Heilongjiang, Peoples R China
来源：
POLYMER TESTING | 2006年 / 25卷 / 07期
关键词：
nylon; 66; inverse gas chromatography; acid-base properties; surface free energy; contact angle;
D O I：
10.1016/j.polymertesting.2006.06.004
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The surface properties of nylon 66 were quantitatively analyzed by inverse gas chromatography (IGC) and contact angle. Five n-alkanes (C-6, C-7, C-8, C-9, and C-10) were chosen as apolar probes to characterize the dispersive component of surface free energy. Dichloromethane (CH2Cl2), acetone, and tetrahydrofuran (THF) were chosen as polar probes to detect the Lewis acid-base parameters. The dispersive component of free energy was found to be 37.4, 42.7, 46.8, and 47.5 mJ/m(2) at 70, 80, 90, and 100 degrees C, respectively. The dispersive component of surface free energy of nylon 66 was 11.6-13.1 mJ/m2 measured by contact angle at 20 degrees C. The results of IGC and contact angle were uniform. The Lewis acid number K-a of nylon 66 was 2.03, and the base number K-b was 7.17, which means nylon 66 is a Lewis basic polymer. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：970 / 974
页数：5
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