ADSORPTION OF PARTIAL HYDROLYZED POLYACRYLAMIDE ON ALUMINUMMAGNESIUM HYDROXIDE

HOU Wanguo; CAI Xiwu; HAN Shuhua; SUN Dejun; ZHANG Chunguang

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ADSORPTION OF PARTIAL HYDROLYZED POLYACRYLAMIDE ON ALUMINUMMAGNESIUM HYDROXIDE

Research Article | 更新时间：2021-03-19

- ADSORPTION OF PARTIAL HYDROLYZED POLYACRYLAMIDE ON ALUMINUMMAGNESIUM HYDROXIDE
- Acta Polymerica Sinica Issue 2, Pages: 172-176(1998)
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- Published：20 April 1998，
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HOU Wanguo, CAI Xiwu, HAN Shuhua, SUN Dejun, ZHANG Chunguang. ADSORPTION OF PARTIAL HYDROLYZED POLYACRYLAMIDE ON ALUMINUMMAGNESIUM HYDROXIDE. [J]. Acta Polymerica Sinica (2):172-176(1998)
DOI：

HOU Wanguo, CAI Xiwu, HAN Shuhua, SUN Dejun, ZHANG Chunguang. ADSORPTION OF PARTIAL HYDROLYZED POLYACRYLAMIDE ON ALUMINUMMAGNESIUM HYDROXIDE. [J]. Acta Polymerica Sinica (2):172-176(1998) DOI：

摘要

研究了部分水解聚丙烯酰胺（ＰＨＰＡ）在具有永久正电荷的铝镁氢氧化物（ＡＭＨ）上的吸附

考察了水解度（α）、ｐＨ、离子强度和温度等因素的影响．发现水解度增大

吸附量降低

ｐＨ增大

水解度低的样品ＰＨＰＡ１（α＝２．４％）的吸附量增大

而水解度高的样品ＰＨＰＡ２（α＝１０．８％）和ＰＨＰＡ３（α＝４１．２％）的吸附量降低．电解质使ＰＨＰＡ１的吸附量降低

而使ＰＨＰＡ２的吸附量升高．温度升高

ＰＨＰＡ的吸附量也升高

说明吸附是吸热过程．对吸附机理进行了探讨．

Abstract

The adsorption of partial hydrolyzed polyacrylamide (PHPA) on aluminum magnesium hydroxide (AMH) possessing permanent positive charges and effects of degree of hydrolysis(α)

ionic strength and temperature have been studied. The presence of mutilayer adsorption of PHPA on AMH is found

and the amount of adsorption (A) decreases with increasing α of PHPA. With increasing pH the A of PHPA with lower α such as sample PHPA1 (α=2.4%) increases and however the A of PHPA with higher α such as samples PHPA2(α=10.8%)and PHPA3(α=41.2%)decrease.The presence of NaCl may reduce the A of PHPAl but may raise the A of PHPA2.The increase of temperature may raise the A of PHPA

which indicates that the adsorption processes studied are endothermic.The mechanism of adsorption has been discussed in the paper.According to the experimental results

in is inferred that the adsorptive force between flexible polymer moleculae and adsorbent has a optimum range in which the amount of adsorption is maximum.When the adsorptive force is too strong

the amount of adsorption will be lower because the sdsorbed flexible moleculae mey be spreed.Of course

when the adsorptive force is too weak

the amount of adsorption will be lower also.

关键词

吸附聚丙烯酰胺铝镁氢氧化物正电溶胶

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Technical Institute of Physics and Chemistry, Chinese Academy of Sciences

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