基于聚丙烯酰胺和聚乙烯醇的新型NPK肥料，可控制养分释放

IF 0.7 4区工程技术 Q4 CHEMISTRY, APPLIED

Polish Journal of Chemical Technology Pub Date : 2022-09-01 DOI:10.2478/pjct-2022-0017

A. Białkowska, B. Borycka, M. Bakar, Agnieszka Rzany

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引用次数: 2

摘要

摘要本工作的目的是基于多组分聚合物的两种创新肥料的制备和性能评估，其特征是养分的控制释放。一种方法是基于含有不同量的微量元素NPK12-5-6肥料的多组分液体和聚丙烯酰胺水凝胶珠。第二种方法涉及可生物降解的聚乙烯醇与多组分NPK肥料的交联。具有最高量NPK盐的基于聚丙烯酰胺的组合物以及基于60phr交联浓缩物的致密凝胶形式的基于聚乙烯醇的肥料显示出最佳性能。无论使用哪种肥料，其成分的释放都很缓慢。根据养分释放动力学对所获得的肥料进行分类。由聚丙烯酰胺基肥料制成的肥料被归类为一组控释肥料（CRF），而由可生物降解的环保聚乙烯醇制成的肥料则被定义为缓释肥料（SRF）。

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Innovative NPK Fertilizers based on Polyacrylamide and Polyvinyl Alcohol with Controlled Release of Nutrients

Abstract The aim of the present work was the preparation and properties evaluation of two innovative fertilizers based on multicomponent polymers characterized by a controlled release of nutrients. One method was based on a multi-component liquid containing different amounts of microelements NPK 12-5-6 fertilizers with polyacrylamide hydrogel beads. The second method concerned the cross-linking of biodegradable polyvinyl alcohol with multi-component NPK fertilizers. Polyacrylamide-based compositions with the highest amount of NPK salts as well as polyvinyl alcohol-based fertilizers in dense gel form, based on 60 phr crosslinking concentrate have shown optimal properties. Regardless of the type of fertilizers used, their components were released slowly. The obtained fertilizers were classified according to the kinetics of nutrient release. Fertilizers made from polyacrylamide based fertilizers have been classified into a group of controlled release fertilizers (CRF), while those made from biodegradable environmentally friendly polyvinyl alcohol have been defined as slow released fertilizers (SRF).

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来源期刊

Polish Journal of Chemical Technology CHEMISTRY, APPLIED-ENGINEERING, CHEMICAL

CiteScore

1.70

自引率

10.00%

发文量

审稿时长

4.5 months

期刊介绍： Polish Journal of Chemical Technology is a peer-reviewed, international journal devoted to fundamental and applied chemistry, as well as chemical engineering and biotechnology research. It has a very broad scope but favors interdisciplinary research that bring chemical technology together with other disciplines. All authors receive very fast and comprehensive peer-review. Additionally, every published article is promoted to researchers working in the same field.