原料配比变化对k -卡拉胶-丙烯酰胺水凝胶载体硝酸铵肥料的影响

Hendrawan Laksono, M. Kurniati, Y. W. Sari, C. Winarti
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引用次数: 1

摘要

目前正在开发以天然聚合物为基础的水凝胶,如卡拉胶,以提高农业效率。通过向水凝胶中添加肥料,水凝胶会慢慢释放到土壤中。通过对水凝胶溶胀能力、接枝度的凝胶分数值对水凝胶中所含肥料释放能力的响应分析了肥料在卡拉胶基水凝胶上的富集。之所以使用卡拉胶,是因为它作为一种天然聚合物的用途尚未得到广泛的探索,特别是在非食品领域。结果表明:卡拉胶基水凝胶对硝酸铵溶液的平均溶胀值为750.00% ~ 1633.33%;所得凝胶分数为74.06% ~ 87.51%,接枝度为85.33% ~ 93.59%。这些数值表明,卡拉胶具有较高的组织密度和丙烯酰胺单体在卡拉胶上的接枝程度,这意味着卡拉胶:AAm基水凝胶具有较强的力学性能。在5天的观察中,以卡拉胶为基础的水凝胶对硝酸铵样品的释放能力在8.86% ~ 44.92%之间。从试验结果解读,卡拉胶与AAm的最佳配比为1:1,由于其释放值相对较低,但仍具有良好的溶胀性能和力学性能。关键词:水凝胶;卡拉胶;Acrilamyde;肥料释放
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Effect of Variation of Raw Material Ratio on Hydrogel Based on K-Carrageean - Acrylamide as a Carrier of Ammonium Nitrate Fertilizer
Hydrogels based on natural polymers such as carrageenan are currently being developed to improve efficiency in agriculture. By enriching hydrogels with fertilizers, they will be released slowly into the soil. Enrichment of fertilizers on carrageenan-based hydrogels was carried out and analyzed with the response of swelling ability, gel fraction value of grafting degree, to the hydrogel's ability to release the fertilizer trapped in it. Carrageenan is used because its use as a natural polymer has not been widely explored, especially in the non-food sector. The results showed that the average swelling value of carrageenan-based hydrogel to ammonium nitrate solution ranged from 750.00% - 1,633.33%. The gel fraction values obtained ranged from 74.06% to 87.51%, and the degree of grafting ranged from 85.33% to 93.59%. These values indicate a relatively high degree of tissue density and grafting of acrylamide monomer on carrageenan, which means that the carrageenan:AAm based hydrogel has strong mechanical properties. The ability to release ammonium nitrate samples from the hydrogel carrageenan-based has a value ranging from 8.86% to 44.92% in five days of observation. Interpretation of the test results, the best ratio of carrageenan:AAm is 1:1, due to its relatively low release value but still has good swelling and mechanical properties.Keywords: Hydrogel; Carrageenan; Acrilamyde; Fertilizer release
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