期刊论文

Wang, Meng

英文

Journal of Applied Polymer Science

0021-8995

2021

138

15

50179-

10.1002/app.50179

[Correction added on November 6, 2020, after first online publication: The order of the Funding Information section has been updated.] National Key R&D Program of China, Grant/Award Number: 2017YFD0200705; National Natural Foundation of China, Grant/Award Number: 51403099; Natural Science Foundation of Hunan Province, China, Grant/Award Number: 2018JJ2322; Key Projects of Education Department of Hunan Province, China, Grant/Award Number: 18A239; Research Study and Innovative Experiment Program for College Students in Hunan Province, China, Grant/Award Numbers: S201910555019, 2018XJX2042; Projects of Education Department of Hunan Province, China, Grant/Award Number: 19C1628

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Two kinds of bio-based polyurethane coatings for controlled-release urea were prepared by in-situ polymerization used castor oil and liquefied starch as raw materials, respectively. Scanning electron microscopy (SEM) showed that the section morphology of castor oil based polyurethane (Castor-PU) coating was uniform and dense, and that of liquefied starch based polyurethane (Starch-PU) coating had certain proportion of microporous. Infrared spectroscopy (IR) showed that the two coatings had typical urethane characteristic structure, but the difference was that the Starch-PU had obvious unreacte...