期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 18, 页码 15868-15879出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b02244
关键词
superhydrophobic surface; biobased polyurethane-coated fertilizer; controlled-release fertilizer; atmosphere outerwear; nonwetting contact; cottonseed oil
资金
- National Natural Science Foundation of China [31572201]
- Natural Science Foundation of Shandong Province [ZR2015CM035]
- Shandong Agricultural Innovation Team [SDAIT-17-04]
- Projects of Commercialization of Research Findings of Shandong Province [[2014] 183]
- Great Innovation Projects in Agriculture of Shandong Province [[2013] 136]
- National Key Research and Development Program [2016YFB0302403]
- Project of Shandong Province Education Department [ZR2014JL023]
- Shandong Youth Education Science Program for College Students [17BSH113]
The development of efficient biobased controlled-release fertilizers has captured much research attention because of the environmental concerns and food scarcity problems. In this work, a biomimetic superhydrophobic biobased polyurethane coated fertilizer (SBPF) was successfully fabricated by increasing surface roughness and reducing surface energy of polyurethane (PU) coating. The green PU coating was synthesized from low-cost, biodegradable, and renewable cottonseed oil. The nutrient release longevity of SBPF revealed 2-fold enhancement compared with the normal biobased PU-coated fertilizer (BPF). The significant improvement of nutrient release characteristics can be attributed to the atmosphere outerwear which ensured the nonwetting contact of water with superhydrophobic surfaces in gas state instead of in liquid state. The new concept introduced in this study can inform the development of the next generation of biobased controlled release fertilizers.
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