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Study on Preparation and Properties of Lignin /PAM Hydrogel Sensing Material
Received:July 01, 2021  
DOI：10.11980/j.issn.0254-508X.2022.01.005
Key Words:lignin  hydrogel  sensing material  adhesion
Fund Project:国家自然科学基金（31901265；22178208）。
Author NameAffiliationPostcode
XIU Huijuan College of Bioresources Chemical and Materials Engineering， National Demonstration Center for Experimental Light Chemistry Engineering Education ， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper Development， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province，710021 710021
LI Jingyu College of Bioresources Chemical and Materials Engineering， National Demonstration Center for Experimental Light Chemistry Engineering Education ， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper Development， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province，710021 710021
ZHAO Haizhi College of Bioresources Chemical and Materials Engineering， National Demonstration Center for Experimental Light Chemistry Engineering Education ， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper Development， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province，710021 710021
DENG Zili College of Bioresources Chemical and Materials Engineering， National Demonstration Center for Experimental Light Chemistry Engineering Education ， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper Development， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province，710021 710021
QIAO Cheng College of Bioresources Chemical and Materials Engineering， National Demonstration Center for Experimental Light Chemistry Engineering Education ， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper Development， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province，710021 710021
SONG Shunxi College of Bioresources Chemical and Materials Engineering， National Demonstration Center for Experimental Light Chemistry Engineering Education ， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper Development， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province，710021 710021
DAI Lei College of Bioresources Chemical and Materials Engineering， National Demonstration Center for Experimental Light Chemistry Engineering Education ， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper Development， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province，710021 710021
LI Jinbao* College of Bioresources Chemical and Materials Engineering， National Demonstration Center for Experimental Light Chemistry Engineering Education ， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper Development， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province，710021 710021
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Abstract:In this study， lignin and acrylamide were used as raw materials to prepare lignin/polyacrylamide composite hydrogel with excellent mechanical and adhesive properties. The results showed that the addition of lignin was beneficial to the mechanical and adhesive properties of hydrogel. When the lignin content was 1%， the tensile strain of the composite hydrogel reached 525% and the tensile stress was 50 kPa， the toughness was 11.2 MJ/m3， the compressive strain was 88.7%， the compressive stress was 97 kPa. Besides， the addition of lignin increased the adhesive performance of the composite hydrogels with the adhesion energy of 130 N/m2. Compared with the hydrogel without lignin， the elongation of composite hydrogel was increased by 1.7 times， and adhesion energy was increased by 4 times.
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