Preparation and properties of starch-based polyurethane/montmorillonite composite coatings for controlled-release fertilizer
文献类型： 外文期刊
作者： Liao, Yun 1 ; Liu, Li 2 ; Wang, Meng 2 ; Li, Li-Xia 3 ; Cao, Bing 3 ; Wang, Hai 2 ; Huang, Wei-Qiang 2 ;
作者机构： 1.Univ South China, Sch Chem & Chem Engn, Hengyang, Peoples R China
2.Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China
3.Beijing Acad Agr & Forestry Sci, Inst Plant Nutr & Resource, Beijing 100097, Peoples R China
关键词： controlled‐ release fertilizer; montmorillonite; polyurethane; starch
期刊名称：POLYMER COMPOSITES （ 影响因子：3.171； 五年影响因子：2.877 ）
ISSN： 0272-8397
年卷期： 2021 年 42 卷 5 期
页码：
收录情况： SCI
摘要： In order to enhance the controlled-release property of starch-based polyurethane (SPU) coating, polyurethane/montmorillonite (SPU/MMT) composite coatings for controlled-release urea were prepared by in-situ polymerization with a rotating drum. The effect of MMT on morphology, structure, physico-chemical properties, especially controlled-release property of the as-prepared composite coatings were studied in detail. The results showed that MMT particles dispersed well in SPU matrix, and the obtained SPU/MMT composite coatings possessed more tough and compact morphology with less-visible holes compared with SPU coating. With the content of MMT rising to 3%, the time needed for 75% nitrogen release increased to 49 days, much longer than 14 days of SPU coating. Further, the nitrogen release mechanism underlying the structure and properties of SPU/MMT composite coatings were discussed and elucidated. According to the analysis, the superior controlled-release property of SPU/MMT coatings originated from the impermeablity to water molecules of layered MMT acting as mechanical barriers to increase the diffusion path and resistance, the enhanced crosslinking density and hydrophobicity of composite system due to the introduction of MMT, as well as the improved mechanical properties hindering the formation of cracks and enlargement of the holes on the surface of composite coatings.
- 相关文献
作者其他论文 更多>>
-
Effects of Long-Term Controlled-Release Urea on Soil Greenhouse Gas Emissions in an Open-Field Lettuce System
作者：Wang, Xuexia;Cao, Bing;Zhao, Meng;Chen, Yanhua;Zhang, Jiajia;Wang, Jiachen;Liang, Lina;Wang, Xuexia;Cao, Bing;Zhao, Meng;Chen, Yanhua;Zhang, Jiajia;Wang, Jiachen;Liang, Lina;Zhou, Yapeng
关键词：N2O emissions; CO2 emissions; controlled-release fertilizer; DCD; lettuce yield
-
One-Time Contact Application of Controlled-Release Urea and Optimized Method Improved Rice Yield and Nitrogen Use Efficiency with 50% Nitrogen Input
作者：Li, Jintao;Ding, Zijuan;Ma, Xiaowei;Ma, Zhiyao;Qian, Yuhong;Yao, Hongyue;Hou, Jun;Cao, Yuxian;Cao, Bing;Cao, Bing
关键词：controlled-release urea; nitrogen reduction; rice; rice seedling box contact fertilization technology
-
Effects of polyurethane microplastics combined with cadmium on maize growth and cadmium accumulation under different long-term fertilisation histories
作者：Zhao, Meng;Wang, Xuexia;Cao, Bing;Zhang, Jiajia;Wang, Jiachen;Zou, Guoyuan;Chen, Yanhua;Li, Yifan;Li, Congping
关键词：Fertilising treatment; Polyurethane; Cadmium; Phytotoxicity; Rhizosphere environment
-
Preparation of Hybrid Magnetic Nanoparticles for Sensitive and Rapid Detection of Phorate Residue in Celery Using SERS Immunochromatography Assay
作者：Li, Xiangyang;Qian, Hean;Qian, Hean;Tao, Jin;Cao, Mingshuo;Wang, Meng;Zhai, Wenlei
关键词：surface-enhanced Raman spectroscopy; immunochromatography assay; rapid detection; organophosphorus pesticide; phorate; magnetic nanoparticles; immunochromatographic test strip
-
Constructing graphene oxide/Au nanoparticle cellulose membranes for SERS detection of mixed pesticide residues in edible chrysanthemum
作者：Zhao, Zhilei;Cao, Mingshuo;Cao, Mingshuo;Wei, Dizhe;Wang, Meng;Zhai, Wenlei;Li, Xiangyang
关键词：
-
Regulation of nitrogen utilization and mycotoxin biosynthesis by the GATA transcription factor AaAreA in Alternaria alternata
作者：Wang, Liuqing;Wang, Meng;Wang, Cheng;Xu, Liang
关键词：Alternaria alternata; Alternariol; Mycotoxin; Nitrogen regulation; GATA transcription factor
-
Antifungal mechanism of protocatechuic acid methyl ester against Botrytis cinerea in postharvest strawberry fruit
作者：Yuan, Shuzhi;Wang, Baogang;Sun, Minmin;Wang, Xuanqi;Li, Xiaofei;Yang, Na;Xu, Xiaodi;Zheng, Shufang;Wang, Qing;Wang, Meng
关键词：Protocatechuic acid methyl ester; Botrytis cinerea; Strawberries; Antifungal mechanism
