Abstract
The novel hygroscopic hybrid hydrogels were prepared from polyacrylamide and calcium chloride. The hygroscopic swelling properties and kinetics of CaCl 2/polyacrylamide hybrid gels were investigated. To optimize the experimental condition, the influence factors such as dissolution temperature of CaCl 2, CaCl 2 mass, and hygroscopic temperature relative to the hygroscopic swelling degree of hybrid desiccants were studied systematically. The research results revealed that, under the optimal experimental condition (dissolution temperature of CaCl 2, 50 °C; CaCl 2 mass, 80%; environment temperature, 30 °C), the hybrid gels displayed the highest hygroscopic swelling degree resulting from high hygroscopic ability of calcium chloride and good water-binding of polyacrylamide. Under the optimized experimental condition, the hygroscopic swelling degree of the hybrid gels increased with the increment of relative humidity. Furthermore, the hygroscopic swelling processes of hybrid gels followed the Schott second order dynamic equation, and the hygroscopic swelling rate decreased with the increment of relative humidity.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Colloids and Surfaces A: Physicochemical and Engineering Aspects
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
