Preparation of nanocellulose-polyvinyl alcohol composite hydrogels from Desmodium intortum (Mill.) Urb.: Chemical property characterization
文献类型： 外文期刊
作者： Dong, Rong-shu 1 ; Lu, Feng 2 ; Liu, Pan-dao 1 ; Li, Xin-yong 1 ; Huang, Rui 1 ; Liu, Guo-dao 1 ; Chen, Jian 2 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Inst Trop Crop Genet Resources, Haikou 571101, Hainan, Peoples R China
2.Hainan Univ, Key Lab Food Nutr & Funct Food Hainan Prov, Haikou 570228, Hainan, Peoples R China
3.Minist Educ, Engn Res Ctr Utilizat Trop Polysaccharide Resourc, Haikou 570228, Hainan, Peoples R China
4.Hainan Univ, Coll Food Sci & Technol, Haikou 570228, Hainan, Peoples R China
关键词： Mountain locust; Nanocellulose; Hydrogel; Polyvinyl alcohol
期刊名称：INDUSTRIAL CROPS AND PRODUCTS （ 影响因子：6.449； 五年影响因子：6.508 ）
ISSN： 0926-6690
年卷期： 2022 年 176 卷
页码：
收录情况： SCI
摘要： Nanocrystalline cellulose (NCC) was extracted from Desmodium intortum (Mill.) Urb. by sulfuric acid hydrolysis, and the NCC and polyvinyl alcohol (PVA) were fused together by repeated freezing and thawing cycles to obtain nanofiber-polyethylene. The alcohol composite hydrogel was characterized by XRD, FTIR, and SEM methods. The results showed that nanocellulose is primarily blended with polyvinyl alcohol through physical cross-linking, and the water retention of the composite hydrogel is obvious. Specifically, when the amount of NCC added was 0.4%, the water content increased to 94.26%. In short, the nanocellulose extracted from Desmodium intortum (Mill.) Urb. can effectively improve the water retention and thermal stability of PVA, which provides an effective theoretical basis for the hydrogel in medical dressings and improves the application value of Desmodium intortum (Mill.) Urb.
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