本文關鍵詞： 阻垢劑 聚天冬氨酸 聚環(huán)氧琥珀酸 阻垢性能 ESA/AMPS共聚物　出處：《安徽大學》2015年碩士論文　論文類型：學位論文

【摘要】：隨著工業(yè)的飛速發(fā)展,工業(yè)水的腐蝕結垢問題也迫待解決。腐蝕結垢嚴重危害了工業(yè)生產,阻滯了工業(yè)的發(fā)展。阻垢劑是解決結垢的主要途徑之一,目前的阻垢劑主要有無機聚磷酸鹽,含磷有機緩蝕阻垢劑,天然阻垢劑等。這些含磷阻垢劑雖然有一定的阻垢效果,但對環(huán)境也造成了一定的污染,不符合綠色環(huán)保和可持續(xù)發(fā)展的要求。隨著綠色化學概念的提出,人們對于綠色化學品的不斷追求,綠色環(huán)保阻垢劑的研發(fā)成為了國內外研究的重要課題。聚天冬氨酸和聚環(huán)氧琥珀酸是近年來研發(fā)的兩種新型阻垢劑,無毒,無污染,易生物降解,符合綠色環(huán)保的要求,是綠色新型高分子材料。它們的用途十分廣泛,涉及到工業(yè)水處理,醫(yī)藥,農業(yè),生物等各個行業(yè)。聚天冬氨酸和聚環(huán)氧琥珀酸對碳酸鈣垢,硫酸鈣垢,硫酸鋇垢等有很好的阻垢效果,已成為了21世紀國內外爭相研究的熱點。本文分別制備合成了聚天冬氨酸和聚環(huán)氧琥珀酸并對它們的阻垢性能進行了研究,具體研究內容及實驗結果如下：本文第一部分首先簡述了阻垢劑的定義,介紹了阻垢劑的種類,阻垢原理以及阻垢性能的評價方法。然后重點介紹了兩種綠色環(huán)保阻垢劑聚天冬氨酸和聚環(huán)氧琥珀酸的制備方法和應用,對國內阻垢劑的現(xiàn)狀及研究方向進行了展望。本文第二部分以馬來酸酐和尿素為原料,磷酸為催化劑,二步法合成聚天冬氨酸(PASP)。用傅里葉紅外光譜對PASP進行了表征,通過實驗考察了各反應條件對聚天冬氨酸阻垢率的影響,并討論了合成聚天冬氨酸的最佳工藝條件,包括馬來酸與尿素的摩爾比,聚合反應溫度,聚合反應時間等,實驗得出在該工藝條件下所得PASP的阻垢效果最好。對PASP進行了生物降解性能測試,得出PASP為易生物降解阻垢劑。本文第三部分以順丁烯二酸酐為主要原料,以鎢酸鈉為催化劑,二水合硫酸鈣和氫氧化鈣為雙引發(fā)劑,合成了無氮、無磷和生物降解性好的綠色阻垢劑聚環(huán)氧琥珀酸(PESA)。分析了各種合成條件對PESA阻垢性能的影響,得出了合成PESA的最佳工藝條件。采用靜態(tài)阻垢法考察了阻碳酸鈣垢的性能,研究結果表明產物在循環(huán)冷卻水系統(tǒng)中具有優(yōu)異的阻垢性能。本文第四部分以介孔分子篩負載催化劑鎢酸鈉,催化合成環(huán)氧琥珀酸,該產物經高效液相色譜測試其產率可達95%以上。然后以組合引發(fā)劑引發(fā)環(huán)氧琥珀酸鹽,聚合反應得到環(huán)保型水處理劑聚環(huán)氧琥珀酸(PESA)溶液,并按照國家標準對合成的水處理劑給予評價�？疾炝梭w系pH值、反應溫度、引發(fā)劑的用量等對聚環(huán)氧琥珀酸阻垢性能的影響。并對其進行了生理學及生物降解性測試。本文第五部分以馬來酸酐為原料,鎢酸鈉為催化劑,制備環(huán)氧琥珀酸(ESA)。將其與2-丙烯酰胺-2-甲基丙磺酸(AMPS)共聚得到ESA/AMPS共聚物。采用靜態(tài)實驗法評價共聚物阻磷酸鈣垢和碳酸鈣垢的性能,探討了單體配比、引發(fā)劑用量、聚合時間、聚合溫度、以及該阻垢劑投入量對碳酸鈣和磷酸鈣阻垢率的影響,并對其結果進行討論。
[Abstract]:With the rapid development of industry, corrosion and scaling problems in industrial water is also urgent. The corrosion and scaling serious harm to the industrial production, the development of industry. The block scale inhibitor is one of the main ways to solve the scaling, scale inhibitors are mainly inorganic polyphosphate, organic phosphorus corrosion inhibitor, a natural inhibitor etc. These phosphorous scale inhibitor has some inhibition effect, but also caused certain pollution to the environment, does not meet the green environmental protection and sustainable development. With the development of the concept of green chemistry, people constantly pursuit for green chemical research, green scale inhibitor has become an important research topic at home and abroad. Polyaspartic acid and polyepoxysuccinic acid is two novel inhibitor, in recent years developed non-toxic, no pollution, easy degradation, meet the requirements of environmental protection, green new polymer materials. They are used The way is very extensive, involving industrial water treatment, medicine, agriculture, biology and so on. Polyaspartic acid and polyepoxysuccinic acid to calcium carbonate, calcium sulphate, barium sulfate has good inhibition effect, has become the hotspot of research at home and abroad in twenty-first Century. This paper has synthesized polyaspartic acid and polyepoxysuccinic acid and inhibition on their performance are studied, the research contents and results are as follows: the first part of this paper describes the definition of scale inhibitor, scale inhibitor were introduced, and the principle of evaluation scale to scale method. And then introduces the two kinds of green scale inhibitor polyaspartic acid and polyepoxysuccinic acid preparation method and application of the status quo and research direction of the domestic scale inhibitor were discussed. The second part of this paper using maleic anhydride and urea as raw material, phosphoric acid as catalyst, two Synthesis of polyaspartic acid (PASP). The characterization method of PASP using Fourier transform infrared spectroscopy, the effects of various reaction conditions on the influence of polyaspartic acid inhibition rate, and the optimum conditions for synthesis of poly aspartic acid is discussed, including the molar ratio of maleic acid and urea, polymerization temperature, polymerization reaction time, the experiment shows that the inhibition effects of PASP in the best conditions. The PASP was biodegradation test, it showed that PASP was a biodegradable inhibitor. In the third part, taking maleic anhydride two as main raw materials, with sodium tungstate as catalyst, two hydrated calcium sulfate and calcium hydroxide as initiator. The synthesis of nitrogen, phosphorus and free green scale inhibitor with good biodegradability of polyepoxysuccinic acid (PESA). Analyzed the influence of synthesis conditions on PESA scale inhibition performance, the optimum process conditions of the synthesis of PESA was used. The static scale inhibition method was used to investigate the properties of the calcium carbonate scale inhibition, the results show that the product has excellent scale inhibition performance in the cooling water system. The fourth part of this paper with mesoporous molecular sieve catalyst sodium tungstate, catalytic synthesis of epoxy succinic acid, the product by high performance liquid chromatography test and the yield can reach more than 95%. Then the combination triggered initiator epoxy succinate, polymerization of environment-friendly water treatment agent polyepoxysuccinic acid (PESA) solution, and evaluates the water treatment agent prepared in accordance with the national standards. The influences of pH value, reaction temperature, initiator dosage of poly epoxy succinic acid inhibition performance and its physiological. Learn and biodegradability test. In the fifth part, using maleic anhydride as raw material, sodium tungstate as catalyst, preparation of Epoxysuccinic acid (ESA). The 2- acrylamide -2- methyl propane sulfonic acid (AMPS) Co ESA/AMPS poly copolymer. The static performance experiment method to evaluate the resistance of copolymer of calcium carbonate and calcium phosphate scale, the effects of the monomer ratio, initiator concentration, polymerization time, polymerization temperature, and the amount of inhibitor on calcium carbonate and calcium phosphate inhibition rate, and the results were discussed.

【學位授予單位】：安徽大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TQ085.4

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本文編號：1524311