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Study on Preparation and Properties of Hemicellulose/Chitosan Composite Hydrogels
Received:January 11, 2022  
DOI：10.11980/j.issn.0254-508X.2022.07.005
Key Words:hemicellulose  chitosan  composite hydrogels  strengthen
Fund Project:大学生创新创业计划项目（S201910500038）；湖北省教育厅青年人才项目（Q20181404）；制浆造纸工程国家重点实验室开放基金（201807）；湖北工业大学绿色轻工材料湖北省重点实验室开放基金（201710A07）。
Author NameAffiliationPostcode
XU Jiawei* Hubei Provincial Key Lab of Green Materials for Light Industry， Hubei University of Technology， Wuhan， Hubei Province， 430068 430068
GUO Zejiang Hubei Provincial Key Lab of Green Materials for Light Industry， Hubei University of Technology， Wuhan， Hubei Province， 430068 430068
WANG Zhenyu Hubei Provincial Key Lab of Green Materials for Light Industry， Hubei University of Technology， Wuhan， Hubei Province， 430068 430068
FAN Zhen Hubei Provincial Key Lab of Green Materials for Light Industry， Hubei University of Technology， Wuhan， Hubei Province， 430068 430068
CHENG Heli Hubei Provincial Key Lab of Green Materials for Light Industry， Hubei University of Technology， Wuhan， Hubei Province， 430068
State Key Lab of Pulp and Paper Engineering； South China University of Technology， Guangzhou， Guangdong Province， 510640
Collaborative Innovation Center of Green Light-weight Materials and Processing， Hubei University of Technology， Wuhan， Hubei Province， 430068 		430068
XIE Yimin Hubei Provincial Key Lab of Green Materials for Light Industry， Hubei University of Technology， Wuhan， Hubei Province， 430068
State Key Lab of Pulp and Paper Engineering； South China University of Technology， Guangzhou， Guangdong Province， 510640 		510640
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Abstract:In this study， hemicellulose/chitosan composite hydrogels were prepared in alkali/urea/water system by using corncob hemicellulose and chitosan. The effect of chitosan dosage on the swelling behavior and compressive strength of the composite hydrogels were discussed， and finally thermal degrade stability of the hydrogels was investigated. Results showed that the hydrogels had a uniform porous structure with a pore size of about 200 μm. Infrared spectroscopy indicated that the network structure of the composite hydrogels was formed by chemical cross-linking between hemicellulose， chitosan and epichlorohydrin. With the increase of chitosan dosage， the swelling ratio of the composite hydrogels in deionized water gradually decreased， the compressive strength gradually increased， and when the dosage of chitosan was 4%， the compressive strength reached 325 kPa.
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