本文選題：陽離子聚丙烯酰胺 + 水包水��； 參考：《西北大學》2011年碩士論文

【摘要】：聚丙烯酰胺(PAM)作為一種常用的水溶性聚合物,已廣泛應(yīng)用于采油、水處理、造紙和采礦等行業(yè)。本文受有關(guān)生產(chǎn)廠家委托,仿制合成穩(wěn)定性好、溶解迅速、使用性能好的一種進口陽離子水包水型聚丙烯酰胺產(chǎn)品,質(zhì)量達到廠家提供的樣品性能。 本文首先選用聚乙烯吡咯烷酮(PVP)作為分散穩(wěn)定劑,過硫酸銨/亞硫酸氫鈉為引發(fā)劑,用水分散聚合方法合成陽離子聚丙烯酰胺,用紅外光譜儀、烏氏粘度計、旋轉(zhuǎn)粘度計對產(chǎn)品進行表征,考察了分散劑用量、單體濃度、單體配比、硫酸銨濃度、引發(fā)劑濃度和引發(fā)溫度等參數(shù)對聚合物特性粘數(shù)和穩(wěn)定性的影響,但產(chǎn)品的穩(wěn)定性不是很好。 接下來用溶解性更好的陽離子單體的聚合物作為分散穩(wěn)定劑,以水溶性偶氮化合物偶氮二異丁基脒鹽酸鹽(V50)為引發(fā)劑,合成了水溶性陽離子共聚物PAM乳液,同樣用紅外光譜儀、烏氏粘度計、旋轉(zhuǎn)粘度計對產(chǎn)品進行表征,考察了分散穩(wěn)定劑分子量及用量、單體配比、單體濃度、硫酸錢用量、引發(fā)劑用量及反應(yīng)溫度等條件對分散聚合的影響,所制備產(chǎn)品的穩(wěn)定性與進口產(chǎn)品相當,其特性粘數(shù)及紅外圖譜與廠家提供樣品一致。 用某廠采礦廢水作為模擬廢水,將自制的特性粘數(shù)分別為4.6dL/g、3.8dL/g的兩種產(chǎn)品與廠家樣品進行絮凝效果對比實驗,用可見紫外分光光度計測其上層清液透光率,結(jié)果表明：特性粘數(shù)為4.6dL/g的自制產(chǎn)品與廠家樣品效果接近,送小試樣品給廠家試用,基本達到進口產(chǎn)品性能,有待進一步放大試驗后,進行中試。
[Abstract]:Polyacrylamide (PAM), as a common water-soluble polymer, has been widely used in oil recovery, water treatment, paper making and mining industries. In this paper, a kind of imported cationic water-in-water polyacrylamide product with good stability, rapid dissolution and good performance is commissioned by the manufacturer. The quality of the product is up to the performance of the sample provided by the manufacturer. In this paper, polyvinylpyrrolidone (PVP) was used as dispersion stabilizer and ammonium persulfate / sodium bisulfite as initiator to synthesize cationic polyacrylamide by water dispersion polymerization. The effects of dispersant dosage, monomer concentration, monomer ratio, ammonium sulfate concentration, initiator concentration and initiation temperature on the intrinsic viscosity and stability of the polymer were investigated. But the stability of the product is not very good. Then the water-soluble cationic copolymer PAM emulsion was synthesized by using polymer of better solubility cationic monomer as dispersion stabilizer and water-soluble azo compound azo diisobutyl amidine hydrochloride as initiator. The effects of molecular weight and dosage of dispersant stabilizer, monomer ratio, monomer concentration, amount of sulfuric acid, amount of initiator and reaction temperature on dispersion polymerization were investigated. The stability of the prepared products is similar to that of the imported products, and the intrinsic viscosity and infrared spectra are consistent with the samples provided by the manufacturers. Using the mining wastewater of a certain plant as the simulated wastewater, the flocculating effect of the two kinds of products with intrinsic viscosity of 4.6 dL / g or 3.8 dL / g were compared with the samples of the manufacturer. The transmittance of the upper layer was measured by visible ultraviolet spectrophotometer. The results show that the effect of the self-made products with intrinsic viscosity of 4.6dL/g is close to that of the samples of the manufacturers. The small scale samples are sent to the manufacturers for trial, and the properties of imported products are basically achieved. After the further amplification test, the pilot test is carried out.
【學位授予單位】：西北大學
【學位級別】：碩士
【學位授予年份】：2011
【分類號】：TQ316.33

【引證文獻】

相關(guān)期刊論文 前1條

1 葉麗君;張靜;賈丹;羅宇思;何俐臻;丁瑤;朱明;;兩性高分子絮凝劑(DMC-NVP-FA)的制備、表征及應(yīng)用[J];化工新型材料;2013年06期

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本文編號：1916746