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Article: Superabsorbent composite. XIII. Effects of [Al.sup.3+]-attapulgite on hydrogel strength and swelling behaviors of poly(acrylic acid)/[Al.sup.3+]-attapulgite superabsorbent composites.
- Article from:
- Polymer Engineering and Science
- Article date:
- May 1, 2007
- Author:
CopyrightCOPYRIGHT 2007 Society of Plastics Engineers, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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INTRODUCTION
Superabsorbents are crosslinked three-dimensional network of hydrophilic polymer chains that can absorb and retain a lot of aqueous fluids and the absorbed water is hardly removable even under some pressure. Because of excellent properties to traditional water absorbing materials (such as sponge, cotton, and pulp, etc.), superabsorbents have been widely used in many fields, such as hygienic products, horticulture, drug-delivery systems, gel actuators, and coal dewatering [1-4] since the first superabsorbent material was reported by the U.S. Department of Agriculture in 1961. Considerable interests have been drawn and many efforts have been made by ...