喷墨打印阳离子丙烯酸酯乳液的制备

发布时间：2018-04-17 17:37

本文选题：阳离子丙烯酸酯乳液 + 季铵盐乳化剂　；参考：《南京林业大学》2016年硕士论文

【摘要】：本文设计合成了甲基丙烯酸二甲氨基乙酯类和丙烯酰胺类阳离子乳化剂,并合成相应的阳离子乳液,然后将其应用于喷墨打印中,并通过加入交联体系和功能单体提高乳液的耐水性和稳定性。同时研究合成新型的马来酸系可聚合乳化剂,主要研究内容如下:(1)以甲基丙烯酸二甲氨基乙酯为单体,制备季铵盐型高分子乳化剂,将其与十六烷基三甲基溴化铵复配使用,再与苯乙烯和丙烯酸丁酯单体共聚,制备了阳离子丙烯酸酯乳液。实验结果表明:当高分子阳离子乳化剂与十六烷基三甲基溴化铵的质量比为34.6:0.6时,得到的阳离子乳液最稳定。并通过加入不同的交联体系探讨其对高分子阳离子乳液的耐水性与粒径的影响,同时用红外光谱,差示扫描量热仪、激光粒度分布仪对制得的乳液进行表征。实验结果表明:加入功能单体三甘醇二甲基丙烯酸酯类交联剂(V-389)时乳液的耐水性最好,当V-389用量为1.7%(占主单体总量)时,乳液的吸水率达到最小值3.62%,性能较优良。(2)以丙烯酰胺为主单体,十六烷基三甲基溴化铵为相转移催化剂,合成了高分子阳离子乳化剂,再与苯乙烯和丙烯酸丁酯单体共聚,制备了阳离子丙烯酸酯乳液。实验结果表明:当十六烷基三甲基溴化铵用量为1.0 g,丙烯酰胺用量为5.0 g,环氧氯丙烷用量为5.2 g时,所得到的乳化剂的乳化性能最优良。在制备阳离子乳液过程中,加入不同的交联体系来探讨其对耐水性和粒径的影响,同时用红外光谱,差示热扫描仪、激光粒度分布仪对制得的乳液进行表征。结果表明:当加入交联体系双丙酮丙烯酰胺-己二酰肼基交联体系为1.0 g时,吸水率达到最低值5.39%。(3)用自制的甲基丙烯酸二甲氨基乙酯系高分子乳化剂制备了喷墨用阳离子聚丙烯酸酯乳液。并利用透射电子显微镜、差热示扫描仪、粒径分析仪对制得的聚合物乳液的结构进行了表征,探讨了聚合物在喷墨打印中的油墨吸收性。结果表明:采用核壳乳液聚合法,功能单体羟甲基丙烯酰胺为4.60%(占主单体总量,下同),烯丙基三甲氧基硅烷量为2.30%,DM为19%,纳米三氧化二铝分散液为10.67%(占乳液总量),此时合成的乳液的吸墨性能最好,打出的图片最清晰。(4)将制得的丙烯酰胺类阳离子乳液与三氧化二铝配合使用,并应用于图像打印中,打印的图像较为清晰,同时利用透射电子显微镜对此乳液结构进行了表征。(5)以马来酸酐和N,N-二甲基乙醇胺为反应物,对甲苯磺酸钠为催化剂,合成了马来酸二乙醇胺酯,马来酸二乙醇胺酯再与氯乙酸钠进行季铵化反应,合成了一种新型的可聚合型的马来酸系阳离子单体。并用混合指示剂两相滴定法测定反应转化率,同时用红外光谱和核磁共振氢谱对产物结构进行了分析。正交实验结果表明:马来酸二乙醇胺酯与氯乙酸钠的摩尔比为1:1.2,反应时间为6 h,反应温度为70℃,此时叔胺转化率最高可达76.17%。用上述自制的单体制备阳离子乳化剂,并将其用于乳液聚合,制备出较稳定的阳离子乳液。
[Abstract]:Methyl two dimethylamino ethyl methacrylate and acrylamide cationic emulsifier has been synthesized, and the synthesis of cationic emulsion, and then applied to inkjet printing, and the addition of crosslinking system and functional monomer emulsion to improve water resistance and stability. At the same time on the synthesis of maleic acid, emulsifier, main the research contents are as follows: (1) to two dimethylamino ethyl methacrylate as monomer, preparation of quaternary ammonium salt type polymer emulsifier, its use with sixteen alkyl three methyl bromide combined with styrene and butyl acrylate monomers, cationic acrylic emulsion has been prepared. The experimental results show that when the cationic polymer emulsifier and sixteen alkyl three methyl bromide mass ratio was 34.6:0.6, the most stable cationic emulsion. By adding different crosslinking systems on polymer Effect of cationic emulsion resistance and particle size, at the same time by infrared spectroscopy, differential scanning calorimetry, laser particle size analyzer were used to characterize the prepared emulsion. The experiment results show that adding functional monomer three glycol two methyl acrylate (V-389) emulsion crosslinking agent when the water resistance when the best. The amount of V-389 was 1.7% (for total monomer), emulsion water absorption rate reaches a minimum value of 3.62%, a good performance. (2) using acrylamide as main monomers, sixteen alkyl three methyl ammonium bromide as phase transfer catalyst, polymer cationic emulsifier was synthesized with styrene and butyl acrylate monomers, cationic acrylic emulsion has been prepared. The experimental results show that when sixteen alkyl three methyl bromide dosage is 1 g, dosage of acrylamide was 5 g, epichlorohydrin dosage is 5.2 g, the most excellent emulsifier emulsion in the preparation of cation. In the process of seed emulsion, adding different crosslinking systems to explore its impact on the water resistance and particle size, at the same time by infrared spectroscopy, differential scanning calorimetry, laser particle size analyzer were used to characterize the prepared emulsion. The results show that: when adding diacetone acrylamide - crosslinking system has two hydrazide radical crosslinking system was 1 g, water absorption rate reaches a minimum value (3 5.39%.) with two dimethylamino ethyl methacrylate polymer emulsifier were prepared by cationic polyacrylate emulsion and inkjet. Using transmission electron microscopy, differential thermal scanner shows, particle size analysis structure of polymer emulsion prepared by the instrument were characterized on ink absorbent polymers in ink-jet printing. The results show that the polymerization using core-shell emulsion, functional monomer N-hydroxymethyl acrylamide was 4.60% (for total monomer, the same below), allyltrimethoxysilane weight is 2.30%, DM 19%, three nm two aluminum oxide dispersion was 10.67% (accounting for total, the emulsion) ink receptity emulsion is best, play the picture most clearly. (4) the prepared acrylamide cationic emulsion and three with the use of two aluminum oxide, and applied to the image printing, print the image is clearly, at the same time using transmission electron microscopy in the emulsion was characterized. (5) with maleic anhydride and N, N- two methyl diethanolamine as reactants and sodium p-toluene sulfonate as catalyst, maleic acid two ethanol amine ester was synthesized with maleic acid two ethanol amine ester and then quaternization reaction with sodium chloroacetate. A new type of polymerizable maleic acid cationic monomers were synthesized. Using mixed indicator two-phase titration method for the determination of the conversion rate, at the same time by infrared spectroscopy and nuclear magnetic resonance spectroscopy on the structure of the product was analyzed. The experimental results show that maleic acid The molar ratio of two ethanolamine to sodium chloroacetate is 1:1.2, the reaction time is 6 h, and the reaction temperature is 70 degrees. The conversion rate of tertiary amine is up to 76.17%. at the same time. The cationic emulsifier made by the above homemade single system is applied to emulsion polymerization, and a stable cationic emulsion is prepared.

【学位授予单位】：南京林业大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TQ316.33;O648.23

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