基于改性天然粘土制備保水保肥劑的研究
[Abstract]:Nitrogen fertilizer is easily lost to the environment through runoff, leaching and evaporation, resulting in waste of resources and environmental pollution. In this dissertation, natural clay mineral attapulgite was used as the main raw material, modified by different doses of high energy electron beam, then mixed with two kinds of organic polymer materials, P and M. The high efficiency water and fertilizer retention agent was successfully prepared, and the nitrogen fertilizer such as urea and ammonium chloride was used as the fertilizer source, and the water and fertilizer retention agent was added to the fertilizer to successfully prepare the high efficiency fertilizer, which not only has the function of keeping water, but also has the ability to control the nutrient loss of the fertilizer. The surface migration experiment and leaching control experiment were used to study the water absorption and loss control ability of the fertilizer, and the samples were characterized by infrared spectroscopy, X-ray diffraction, scanning electron microscope and transmission electron microscope. The interaction mechanism between water and fertilizer retention agent and water retention and controlled loss fertilizer was studied, and the effect of the sample on maize growth was also investigated by pot experiment. The main results are as follows: 1. When the irradiation dose is 30kGy, the attapulgite has the highest dispersion and specific surface area. The water retention rate of HA30 is 16.35, which is obviously higher than that of attapulgite modified with other irradiation doses. Water and fertilizer retention agent (WNLCA), with high water retention rate (51.1%) was successfully prepared, and the optimum formula of water retention and fertilizer retention agent was found out by water retention experiment. The optimum formula of water retention and fertilizer retention agent was HA30:P:A=9:1.0:0.4;3, which used nitrogen fertilizer such as urea and ammonium chloride as fertilizer source, and added water and fertilizer retention agent. A high efficiency fertilizer with water retention function and nutrient loss control ability was successfully prepared, which included water retention control urea (WNLCU) and water retention control ammonium chloride (WNLCN); through water retention experiment, fertilizer surface migration experiment and leaching control loss experiment. In this paper, the water absorption and loss control ability of water retention and control loss fertilizer were studied. Through water retention experiment, fertilizer migration experiment and leaching experiment, it was found that when the mass ratio of WNLCA to fertilizer was 9: 1.2, the water retention rate and surface migration control loss rate of WNLCU were obtained. The leaching control loss rates were 43.3% and 65.87%, respectively. The water retention rate, surface migration control loss rate and leaching control loss rate of WNLCN were 31.53 and 38.95% and 89.9695%, respectively. The samples were characterized by IR, X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The interaction mechanism between water and fertilizer retention agent and water retention and controlled loss fertilizer is studied. It is found that there are two kinds of network structure in WNLCA system: one is the 3D micro-nano network structure formed by the self-assembly of attapulgite. The other is the molecular interpenetrating network structure formed between the polymer organic P-M. These two networks can give WNLCA porous, larger specific surface area and hydrophilicity, can simultaneously absorb nutrients and water into the network structure, reduce their loss, improve fertilizer and water use efficiency. It was found that WNLCF could increase N content in maize tissue and WNLCU could control the loss of nutrients and water and supply nutrients and water resources for crop growth. The research work in this paper combines the high energy electron beam modification technology of natural clay material with the water retention of high molecular organic matter, adsorption and bridging performance, and also has practical value and theoretical guiding significance. The synthetic fertilizer can effectively promote the growth of crops and improve agricultural production.
【學(xué)位授予單位】:安徽農(nóng)業(yè)大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:TQ440.1
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 ;國外凹凸棒土產(chǎn)銷狀況[J];礦產(chǎn)保護(hù)與利用;1992年03期
2 胡濤,錢運(yùn)華,金葉玲,梅莉;凹凸棒土的應(yīng)用研究[J];中國礦業(yè);2005年10期
3 郭洪;凹凸棒土的提純研究[J];安徽化工;2005年06期
4 馬玉恒;方衛(wèi)民;馬小杰;;凹凸棒土研究與應(yīng)用進(jìn)展[J];材料導(dǎo)報(bào);2006年09期
5 劉艾芹;閆永勝;李春香;鄧月華;;高純超微細(xì)凹凸棒土的制備及應(yīng)用研究[J];無機(jī)鹽工業(yè);2007年12期
6 王麗;袁建軍;;改性凹凸棒土對鉀、鈣、鎂離子交換作用的研究[J];中國礦業(yè);2008年01期
7 江虹;;釀酒用凹凸棒土的理化性質(zhì)分析與表征[J];釀酒科技;2008年09期
8 徐婉珍;吳向陽;李春香;劉艾琴;荊俊杰;閆永勝;;凹凸棒土對鎘(Ⅱ)和鎳(Ⅱ)吸附行為的研究及分析應(yīng)用[J];冶金分析;2010年07期
9 羅平;鄒建國;劉燕燕;;凹凸棒土在環(huán)境保護(hù)中的應(yīng)用進(jìn)展[J];江西科學(xué);2010年04期
10 林秀玲;公茂利;;超聲制備凹凸棒土型分散劑的研究[J];硅酸鹽通報(bào);2010年05期
相關(guān)會議論文 前10條
1 張燦;陳泓哲;李美蘭;孫成;楊紹貴;;銅離子對凹凸棒土吸附諾氟沙星的影響[A];中國化學(xué)會第28屆學(xué)術(shù)年會第2分會場摘要集[C];2012年
2 黃星雨;劉天晴;;凹凸棒土石墨復(fù)合電極的制備及應(yīng)用[A];中國化學(xué)會第28屆學(xué)術(shù)年會第12分會場摘要集[C];2012年
3 趙先治;陳桂娟;崔鵬;;陶瓷膜微濾分離凹凸棒土過程的研究[A];第三屆全國化學(xué)工程與生物化工年會論文摘要集(上)[C];2006年
4 夏穎;潘高峰;李冬麗;崔鵬;;凹凸棒土復(fù)合吸附劑的制備及性能研究[A];第三屆全國化學(xué)工程與生物化工年會論文摘要集(上)[C];2006年
5 王海玲;朱兆連;宋燕;童健;于年吉;;天然有機(jī)質(zhì)對改性凹凸棒土吸附水體異味物質(zhì)的影響[A];2014中國環(huán)境科學(xué)學(xué)會學(xué)術(shù)年會論文集(第五章)[C];2014年
6 王玉美;李拯;矯維成;王榮國;;凹凸棒土/環(huán)氧樹脂復(fù)合材料力學(xué)性能的研究[A];第十九屆玻璃鋼/復(fù)合材料學(xué)術(shù)交流會論文集[C];2012年
7 鄧月華;李美蘭;楊紹貴;孫成;;基于凹凸棒土的分子印跡聚合物吸附去除水中典型β-阻斷劑[A];第六屆全國環(huán)境化學(xué)大會暨環(huán)境科學(xué)儀器與分析儀器展覽會摘要集[C];2011年
8 王素青;陳靜;韋長梅;;硅鎢酸改性凹凸棒土吸附苯酚的研究[A];2011中國環(huán)境科學(xué)學(xué)會學(xué)術(shù)年會論文集(第一卷)[C];2011年
9 孫巖巖;吳鍵儒;陳大俊;;硅烷偶聯(lián)劑表面修飾凹凸棒土及其在聚苯乙烯改性中的應(yīng)用[A];上海市化學(xué)化工學(xué)會2010年度學(xué)術(shù)年會論文集[C];2010年
10 盛京;楊利營;宋仁峰;賈洪濤;孫海龍;;納米粒子的分散及原位聚合物/凹凸棒土納米復(fù)合材料[A];復(fù)合材料:生命、環(huán)境與高技術(shù)——第十二屆全國復(fù)合材料學(xué)術(shù)會議論文集[C];2002年
相關(guān)重要報(bào)紙文章 前1條
1 本報(bào)通訊員 李光明 劉凱 本報(bào)記者 陳炳山;一千倍,身價(jià)是這樣飆升的[N];新華日報(bào);2009年
相關(guān)博士學(xué)位論文 前7條
1 黃健花;凹凸棒土的有機(jī)改性及其應(yīng)用[D];江南大學(xué);2008年
2 關(guān)鈺;凹凸棒土分層環(huán)包緩釋肥的制備及其對雨養(yǎng)地區(qū)作物生產(chǎn)力的影響[D];蘭州大學(xué);2014年
3 劉玉山;核—?dú)そY(jié)構(gòu)的凹凸棒土—聚合物納米復(fù)合材料的制備與表征[D];蘭州大學(xué);2008年
4 王麗華;聚丙烯/凹凸棒土納米復(fù)合材料的制備、表征及性能研究[D];天津大學(xué);2004年
5 鄧月華;改性凹凸棒土吸附去除水中鉛離子、心得安及溶解性有機(jī)物[D];南京大學(xué);2012年
6 王繼虎;不同維數(shù)納米粘土增強(qiáng)天然橡膠的結(jié)構(gòu)與性能研究[D];東華大學(xué);2014年
7 賈宏濤;聚對苯二甲酸乙二醇酯/無機(jī)納米粒子原位復(fù)合材料的研究[D];天津大學(xué);2004年
相關(guān)碩士學(xué)位論文 前10條
1 童婷;凹凸棒土礦物相組成、改性及脫色性能的研究[D];北京化工大學(xué);2015年
2 張慧;鐵改性凹凸棒土對水中Sb(V)吸附性能及機(jī)理研究[D];貴州大學(xué);2015年
3 于永申;凹凸棒土膜組件的制備及其在鍋爐廢水處理中的應(yīng)用研究[D];北京化工大學(xué);2015年
4 任晶;凹凸棒土的提純及其作為粘結(jié)劑在空分分子篩吸附劑中的應(yīng)用[D];太原理工大學(xué);2012年
5 閆紹俊;磁性納米凹凸棒土改性聚乙烯醇材料的制備及應(yīng)用研究[D];東華大學(xué);2016年
6 姚一一;凹凸棒土/尼龍66納米復(fù)合材料的制備及性能研究[D];東華大學(xué);2013年
7 李鵬;尼龍6/凹凸棒土復(fù)合纖維的延伸行為及抗張性質(zhì)研究[D];湖北大學(xué);2011年
8 劉建成;植物油基聚氨酯及其凹凸棒土復(fù)合材料的制備與性能研究[D];江西科技師范大學(xué);2015年
9 苗琛琛;鑭改性凹凸棒土對模擬富營養(yǎng)化水體中磷的去除研究[D];南京大學(xué);2016年
10 夏洋;氧化石墨烯助分散凹凸棒土納米復(fù)合物的制備及其在聚合物改性中的應(yīng)用[D];安徽大學(xué);2016年
,本文編號:2289785
本文鏈接:http://sikaile.net/kejilunwen/nykj/2289785.html