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Poly-acrylic acid grafted natural rubber for multi-coated slow release compound fertilizer: Preparation, properties and slow-release characteristics.
Int J Biol Macromol. 2020 Mar 01; 146:540-548.IJ

Abstract

In this study, a novel multi-coated slow release compound fertilizer based on natural rubber (NR) was prepared and characterized. Firstly, NR was grafted with poly-acrylic acid by in-situ radical solution polymerization to synthesize poly-acrylic acid grafted natural rubber (NR-g-PAA), the reaction conditions were optimized to increase the water absorption properties of NR-g-PAA. Through a series of characterization and test, the structure, morphology, thermal properties and biodegradability of NR-g-PAA were determined. Subsequently, a multi-nutrient fertilizer core was fabricated with urea, KH2PO4, and attapulgite by pan granulation. Then the fertilizer core was coated by NR as the inner layer and NR-g-PAA as the outer layer. Meanwhile, the slow release behavior of the compound fertilizer in soil was also studied. Results showed that the maximum water absorbency of NR-g-PAA is 744.00 ± 14.38%. The release rate of N, P and K in 30 days for NR/NR-g-PAA coated fertilizer was about 54.35 ± 1.49%, 51.18 ± 2.15% and 44.37 ± 1.38%, respectively, showing that the nutrient element release can last for >30 days. Overall, the novel method introduced in this study can inform the development of NR based controlled release fertilizers.

Authors+Show Affiliations

Institute of Agricultural Resources Chemistry and Application, College of Science, Gansu Agricultural University, Lanzhou 730070, China. Electronic address: cuiyanjun@gsau.edu.cn.Lanzhou Petrochemical Research Center, PetroChina, Lanzhou 730060, China.Institute of Agricultural Resources Chemistry and Application, College of Science, Gansu Agricultural University, Lanzhou 730070, China.Institute of Agricultural Resources Chemistry and Application, College of Science, Gansu Agricultural University, Lanzhou 730070, China.Institute of Agricultural Resources Chemistry and Application, College of Science, Gansu Agricultural University, Lanzhou 730070, China.Institute of Agricultural Resources Chemistry and Application, College of Science, Gansu Agricultural University, Lanzhou 730070, China.Institute of Agricultural Resources Chemistry and Application, College of Science, Gansu Agricultural University, Lanzhou 730070, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31917980

Citation

Cui, Yanjun, et al. "Poly-acrylic Acid Grafted Natural Rubber for Multi-coated Slow Release Compound Fertilizer: Preparation, Properties and Slow-release Characteristics." International Journal of Biological Macromolecules, vol. 146, 2020, pp. 540-548.
Cui Y, Xiang Y, Xu Y, et al. Poly-acrylic acid grafted natural rubber for multi-coated slow release compound fertilizer: Preparation, properties and slow-release characteristics. Int J Biol Macromol. 2020;146:540-548.
Cui, Y., Xiang, Y., Xu, Y., Wei, J., Zhang, Z., Li, L., & Li, J. (2020). Poly-acrylic acid grafted natural rubber for multi-coated slow release compound fertilizer: Preparation, properties and slow-release characteristics. International Journal of Biological Macromolecules, 146, 540-548. https://doi.org/10.1016/j.ijbiomac.2020.01.051
Cui Y, et al. Poly-acrylic Acid Grafted Natural Rubber for Multi-coated Slow Release Compound Fertilizer: Preparation, Properties and Slow-release Characteristics. Int J Biol Macromol. 2020 Mar 1;146:540-548. PubMed PMID: 31917980.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Poly-acrylic acid grafted natural rubber for multi-coated slow release compound fertilizer: Preparation, properties and slow-release characteristics. AU - Cui,Yanjun, AU - Xiang,Yongsheng, AU - Xu,Yumei, AU - Wei,Jia, AU - Zhang,Zhifang, AU - Li,Li, AU - Li,Jing, Y1 - 2020/01/07/ PY - 2019/10/08/received PY - 2019/12/31/revised PY - 2020/01/06/accepted PY - 2020/1/10/pubmed PY - 2020/1/10/medline PY - 2020/1/10/entrez KW - Bio-based polymers KW - Graft modification KW - Natural rubber KW - Slow release fertilizer SP - 540 EP - 548 JF - International journal of biological macromolecules JO - Int. J. Biol. Macromol. VL - 146 N2 - In this study, a novel multi-coated slow release compound fertilizer based on natural rubber (NR) was prepared and characterized. Firstly, NR was grafted with poly-acrylic acid by in-situ radical solution polymerization to synthesize poly-acrylic acid grafted natural rubber (NR-g-PAA), the reaction conditions were optimized to increase the water absorption properties of NR-g-PAA. Through a series of characterization and test, the structure, morphology, thermal properties and biodegradability of NR-g-PAA were determined. Subsequently, a multi-nutrient fertilizer core was fabricated with urea, KH2PO4, and attapulgite by pan granulation. Then the fertilizer core was coated by NR as the inner layer and NR-g-PAA as the outer layer. Meanwhile, the slow release behavior of the compound fertilizer in soil was also studied. Results showed that the maximum water absorbency of NR-g-PAA is 744.00 ± 14.38%. The release rate of N, P and K in 30 days for NR/NR-g-PAA coated fertilizer was about 54.35 ± 1.49%, 51.18 ± 2.15% and 44.37 ± 1.38%, respectively, showing that the nutrient element release can last for >30 days. Overall, the novel method introduced in this study can inform the development of NR based controlled release fertilizers. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/31917980/Poly-acrylic_acid_grafted_natural_rubber_for_multi-coated_slow_release_compound_fertilizer:_Preparation,_properties_and_slow-release_characteristics L2 - https://linkinghub.elsevier.com/retrieve/pii/S0141-8130(19)38109-7 DB - PRIME DP - Unbound Medicine ER -
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