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Chin J Mater Res  2010, Vol. 24 Issue (2): 113-117    DOI:
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Synthesis and Humidity Controlling Behaviors of Attapulgite/Polyacrylic Acid Composite
WANG Jihui;  LI Yan;  ZHANG Ziyang
School of Materials Science and Engineering; Tianjin University; Tianjin Key Laboratory of Composite and Functional Materials; Tianjin 300072
Cite this article: 

WANG Jihui LI Yan ZHANG Ziyang. Synthesis and Humidity Controlling Behaviors of Attapulgite/Polyacrylic Acid Composite. Chin J Mater Res, 2010, 24(2): 113-117.

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Abstract  

Attapulgite/polyacrylic acid composite was synthesized by using inverse suspend polymerization method, and the effects of attapulgite content, neutralization degree and crosslinker content on surface morphology, structure and humidity controlling properties were investigated. The results show that attapulgite/polyacrylic acid composite has a loose and porous surface. With the increase of attapulgite content in composite, the humidity absorption and desorption rate increases firstly under the balance of reduction of moisture absorption component and raising of surface porosity and then decreases. The composite with higher neutralization degree has a higher absorption rate but has a lower desorption rate because part of –COOH in acrylic acid changed to –COONa with higher hydrophilicity. The optimum composition of attapulgite/polyacrylic acid composite is : attapulgite content of 10%, neutralization degree of 60%–80% and crosslinker content of 0.10%–0.50%.

Key words:  composite        attapulgite       acrylic acid       structure       humidity controlling     
Received:  14 December 2009     
Fund: 

Supported by Key Project of Tianjin Natural Science Foundation No.08JCZDJC18000 and Foundation of Key Laboratory of Silicate Materials Science and Engineering (Wuhan University of Technology), Ministry of Education, No.SYSJJ2004-05.

URL: 

https://www.cjmr.org/EN/     OR     https://www.cjmr.org/EN/Y2010/V24/I2/113

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