Research on the use of agricultural waste to manufacture highly hygroscopic materials for agricultural applications

https://doi.org/10.31130/ud-jst.2022.443E

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Author

  • Nguyen Thi Tuyet Ngoc
    The University of Danang - University of Science and Technology
    Huynh Thi Thanh Thang
    The University of Danang - University of Science and Technology
    Nguyen Dinh Lam
    The University of Danang - University of Science and Technology

Từ khóa:

Hydrogel
rice-straw
water absorption
slow water release
cryoge

Tóm tắt

Material based on hydrogel from rice-straw with high absorption capacity and slow water release was prepared by cryogenic method, using citric acid as cross-linker and without creating waste stream to the environment. The structure and properties of the material were characterized by SEM, XRD, FTIR and TGA method. The results showed that the largest water absorbency of the material reached 30.67g/g, 4.48 times higher than the original rice-straw. The material was able to slowly release water in 6 days at room temperature and return water absorption of 3.97 g/g when reusing the material. In addition, the material is biodegradable and biocompatible. With the obtained results and simple, inexpensive, environmentally friendly method, this is a material that can be industrially produced and widely used in green agriculture.

Tài liệu tham khảo

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Đã Xuất bản

Dec 31, 2022
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Cách trích dẫn
Nguyen Thi Tuyet Ngoc, Huynh Thi Thanh Thang, và Nguyen Dinh Lam. “Research on the Use of Agricultural Waste to Manufacture Highly Hygroscopic Materials for Agricultural Applications”. Tạp Chí Khoa học Và Công nghệ - Đại học Đà Nẵng, vol 20, số p.h 12.1, Tháng Chạp 2022, tr 25-29, doi:10.31130/ud-jst.2022.443E.

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