Controlled-release urea encapsulated by ethyl cellulose/butyl acrylate/vinyl acetate hybrid latex

• Autorzy: Li Y. , Zhen D. , Liao S. , Zhu D. , Yang X.

Identyfikatory

DOI

10.2478/pjct-2018-0062

• Języki publikacji: EN

Abstrakty

EN

Fertilizer encapsulation through polymer membranes can reduce fertilizer losses and minimize environmental pollution. In this paper, an emulsion of ethyl cellulose (EC)/vinyl acetate (VAc)/butyl acrylate (BA) was successfully prepared by pre-emulsified semi-continuous seed emulsion polymerization. EC/BA/VAc films showed biodegradability. The influence of the EC content on the properties of EC/BA/VAc films was also investigated by DSC, a water absorbency analysis, etc. Controlled-release urea encapsulated by EC/BA/VAc latex was prepared in a film coating machine and conformed to the standards for slow-release fertilizers of the Committee of European Normalization. The release of urea from controlled-release urea encapsulated by EC/BA/VAc latex containing 0%, 5%, 10%, and 15% EC was 75.1%, 65.8%, 70.1% and 84.1%, respectively, after 42 days, and controlled-release urea encapsulated by EC/BA/VAc latex (5% EC) had the best controlled-release ability. Therefore, controlled-release urea encapsulated by EC/BA/VAc latex has many potential applications in agricultural industry.

Słowa kluczowe

EN

coated urea; ethyl cellulose/butyl acrylate/vinyl acetate; hybrid latex; emulsion polymerization; controlled-release ability

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2018
• Tom: Vol. 20, nr 4
• Strony: 108--112
• Opis fizyczny: Bibliogr. 30 poz., rys., tab.

Twórcy

autor

Li Y.

• College of Basic Sciences of Huazhong Agricultural University, Wuhan, China 430070

autor

Zhen D.

• Hubei University of Technology, College of Bioengineering, Wuhan, China 430068

autor

Liao S.

• College of Basic Sciences of Huazhong Agricultural University, Wuhan, China 430070

autor

Zhu D.

• Centre for Microelement Research of Huazhong Agricultural University Laboratory of Plant Nutrition and Ecological Environment Research, , Wuhan, China 430070

autor

Yang X.

• College of Basic Sciences of Huazhong Agricultural University, Wuhan, China 430070

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).