ENTHALPY OF ADSORPTION AND ADSORPTION-ISOTHERMS OF POLYACRYLAMIDE ON SEA SAND

被引：1

作者：

SONG, XA ^{[1
]}

KE, J ^{[1
]}

HAN, BX ^{[1
]}

YANG, GY ^{[1
]}

YAN, HK ^{[1
]}

机构：

[1] ACAD SINICA,INST CHEM,BEIJING 100080,PEOPLES R CHINA

来源：

JOURNAL OF THERMAL ANALYSIS | 1995年 / 45卷 / 1-2期

关键词：

ADSORPTION ISOTHERM; ENTHALPY OF ADSORPTION; POLYACRYLAMIDE; SEA SAND;

D O I：

10.1007/BF02548656

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The enthalpy of dilution of polyacrylamide 3530s (HPAM) solution, the enthalpy of adsorption of the polymer on sea sand, and the adsorption isotherms, were determined at 298.15 K. The effect of NaCl on these properties were also determined. From the experimental results and certain assumptions, it was deduced that, for an adsorbed HPAM molecule, a large number of segments are in contact with the surface of the solid, some of them forming hydrogen-bonds, most of them belonging to Van der Waals interactions, which are much weaker than hydrogen-bonds, and the HPAM molecules adsorbed on the surface of the solid are spread out.

引用

页码：7 / 12

页数：6

共 9 条

[1] ADSORPTION OF NONIONIC POLYACRYLAMIDE ON SODIUM MONTMORILLONITE - RELATION BETWEEN ADSORPTION, ZETA-POTENTIAL, TURBIDITY, ENTHALPY OF ADSORPTION DATA AND C-13-NMR IN AQUEOUS-SOLUTION [J].