Surface modification of pyrophyllite for optimizing properties of castor oil-based polyurethane composite and its application in controlled-release fertilizer
The high cost and difficulty in sustainability have hindered the wide application of the general synthetic resins in the controlled-release fertilizers (CRF). Here, the degradable castor oil-based polyurethane (PU) was filled by the natural pyrophyllite (PY) powders, which were pre-modified with few...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-02-01
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| Series: | Arabian Journal of Chemistry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S187853522200716X |
| _version_ | 1797952829753655296 |
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| author | Shiping Wang Xiang Li Kun Ren Rui Huang Ganchang Lei Lijuan Shen Yingying Zhan Lilong Jiang |
| author_facet | Shiping Wang Xiang Li Kun Ren Rui Huang Ganchang Lei Lijuan Shen Yingying Zhan Lilong Jiang |
| author_sort | Shiping Wang |
| collection | DOAJ |
| description | The high cost and difficulty in sustainability have hindered the wide application of the general synthetic resins in the controlled-release fertilizers (CRF). Here, the degradable castor oil-based polyurethane (PU) was filled by the natural pyrophyllite (PY) powders, which were pre-modified with few amount (≤0.5 %) of NDZ-201 coupling agent though a simple and economic mechanochemical method. Furthermore, the composite materials of PU and the modified PY (MPY/PU) with enhanced comprehensive properties were prepared and applied in CRF. Moreover, the release behaviors of the coated fertilizers were investigated while tuning the addition amount of modifier or the filling amount of MPY, and it was confirmed that the release performance was highly depended on the hydrophobic and mechanical properties of the composite coating. As a result, the best optimized MPY/PU coating exhibited significantly superior performance to the pure PU materials, and the duration of 80 % nitrogen release was more than 40 days. This confirms that the MPY/PU composite is a promising coating material for the CRF granules. |
| first_indexed | 2024-04-10T22:52:15Z |
| format | Article |
| id | doaj.art-1e0e826921ef4a6e89fcf80580747e19 |
| institution | Directory Open Access Journal |
| issn | 1878-5352 |
| language | English |
| last_indexed | 2024-04-10T22:52:15Z |
| publishDate | 2023-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arabian Journal of Chemistry |
| spelling | doaj.art-1e0e826921ef4a6e89fcf80580747e192023-01-15T04:21:30ZengElsevierArabian Journal of Chemistry1878-53522023-02-01162104400Surface modification of pyrophyllite for optimizing properties of castor oil-based polyurethane composite and its application in controlled-release fertilizerShiping Wang0Xiang Li1Kun Ren2Rui Huang3Ganchang Lei4Lijuan Shen5Yingying Zhan6Lilong Jiang7National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002, ChinaNational Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002, ChinaNational Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002, ChinaNational Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002, ChinaNational Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002, ChinaCollege of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, ChinaNational Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002, China; Corresponding authors.National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002, China; Corresponding authors.The high cost and difficulty in sustainability have hindered the wide application of the general synthetic resins in the controlled-release fertilizers (CRF). Here, the degradable castor oil-based polyurethane (PU) was filled by the natural pyrophyllite (PY) powders, which were pre-modified with few amount (≤0.5 %) of NDZ-201 coupling agent though a simple and economic mechanochemical method. Furthermore, the composite materials of PU and the modified PY (MPY/PU) with enhanced comprehensive properties were prepared and applied in CRF. Moreover, the release behaviors of the coated fertilizers were investigated while tuning the addition amount of modifier or the filling amount of MPY, and it was confirmed that the release performance was highly depended on the hydrophobic and mechanical properties of the composite coating. As a result, the best optimized MPY/PU coating exhibited significantly superior performance to the pure PU materials, and the duration of 80 % nitrogen release was more than 40 days. This confirms that the MPY/PU composite is a promising coating material for the CRF granules.http://www.sciencedirect.com/science/article/pii/S187853522200716XPyrophylliteMechanochemical modificationControlled-release fertilizerComposite materialHydrolytic stability |
| spellingShingle | Shiping Wang Xiang Li Kun Ren Rui Huang Ganchang Lei Lijuan Shen Yingying Zhan Lilong Jiang Surface modification of pyrophyllite for optimizing properties of castor oil-based polyurethane composite and its application in controlled-release fertilizer Arabian Journal of Chemistry Pyrophyllite Mechanochemical modification Controlled-release fertilizer Composite material Hydrolytic stability |
| title | Surface modification of pyrophyllite for optimizing properties of castor oil-based polyurethane composite and its application in controlled-release fertilizer |
| title_full | Surface modification of pyrophyllite for optimizing properties of castor oil-based polyurethane composite and its application in controlled-release fertilizer |
| title_fullStr | Surface modification of pyrophyllite for optimizing properties of castor oil-based polyurethane composite and its application in controlled-release fertilizer |
| title_full_unstemmed | Surface modification of pyrophyllite for optimizing properties of castor oil-based polyurethane composite and its application in controlled-release fertilizer |
| title_short | Surface modification of pyrophyllite for optimizing properties of castor oil-based polyurethane composite and its application in controlled-release fertilizer |
| title_sort | surface modification of pyrophyllite for optimizing properties of castor oil based polyurethane composite and its application in controlled release fertilizer |
| topic | Pyrophyllite Mechanochemical modification Controlled-release fertilizer Composite material Hydrolytic stability |
| url | http://www.sciencedirect.com/science/article/pii/S187853522200716X |
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