以异佛尔酮而异氰酸酯、含磺酸基的聚酯二元醇、聚己二酸丁二醇酯二醇、1,4-丁二醇为原料,以叔胺型扩链剂为亲水扩链剂,将含有阴离子磺酸基的水溶性聚酯多元醇引入到阳离子性的水性聚氨酯分子结构中,制备出含有阴、阳两性离子型聚氨酯。利用红外光谱、透射电子显微镜、激光粒度分析仪、原子力显微镜、扫描电子显微镜和乳液电位分析等手段对两性离子乳液进行了分析表征,结果发现两性离子水性聚氨酯在不同 pH 值环境下具有不同的电离状态,乳液在酸性条件下,zeta电位为50．4 mV,呈现阳离子性,乳液在碱性条件下,zeta电位为－48．3 mV,乳液显示为阴离子性,说明水性聚氨酯具有阴、阳两性特征。因此两性离子型水性聚氨酯较单一离子特性的水性聚氨酯在烘干过程中更容易产生胶粒与胶粒间作用力,能够表现出更大初粘性,更适合制备水性聚氨酯粘合剂。
With isophorone isocyanate,containing sulfonic group of polyester glycol,polyethylene adipic acid butyl glycol ether glycol,1 ,4-butanediol as raw materials,to tertiary amine type chain extension agent for the hydrophilic chain extender,water-soluble polyester polyols containing a anionic sulfonic group was introduced into the cationic waterborne polyurethane molecular structure,contains Yin and Yang amphoteric ionic polyure-thane was prepared.By infrared spectroscopy,transmission electron microscope,laser particle size analyzer, atomic force microscopy,scanning electron microscopy and emulsion potential analysis method analyses the zwitterionic emulsion characterization,it is found that amphoteric ion waterborne polyurethane under different pH environment with different state of ionization,emulsion under acid condition,zeta potential of 50.4 mV, rendering,cationic emulsion in alkaline conditions,zeta potential of 48.3 mV,emulsion exhibits for the anion, that between Yin and Yang characteristics of waterborne polyurethane.Therefore,the aqueous polyurethane waterborne polyurethane amphoteric properties than a single ion in the drying process more prone force between particles and particles,can show greater tack and more suitable for the preparation of aqueous polyurethane ad-hesives.
参考文献
| [1] | 龚梅;张利;黄棣;杜晶晶;周名兵;李玉宝.阴离子型水性聚氨酯的制备及其性能研究[J].功能材料,2012(13):1766-1769. |
| [2] | 任龙芳;郭子东;王学川.PAMAM型树枝状水性聚氨酯的合成及表征?[J].功能材料,2015(1):1061-1065. |
| [3] | M.Angeles Perez-Liminana;Francisca Aran-Ais;Ana M.Torro-Palau;A.Cesar Orgiles-Barcelo;Jose Miguel Martin-Martinez.Characterization of waterborne polyurethane adhesives containing different amounts of ionic groups[J].International Journal of Adhesion & Adhesives,20056(6):507-517. |
| [4] | Anjie Dong;Guoling Hou;Duoxian Sun.Properties of amphoteric polyurethane waterborne dispersions II.Macromolecular self-assembly behavior[J].Journal of Colloid and Interface Science,20032(2):276-281. |
| [5] | Meng, QB;Lee, SI;Nah, C;Lee, YS.Preparation of waterborne polyurethanes using an amphiphilic diol for breathable waterproof textile coatings[J].Progress in Organic Coatings: An International Review Journal,20094(4):382-386. |
| [6] | 燕民翔;朱延安;瞿金清.新型TMPPs/非离子型水性聚氨酯的合成与性能[J].化工学报,2014(6):2393-2399. |
| [7] | Xin Li;Shimei Xu;Jide Wang.Structure and characterization of amphoteric semi-IPN hydrogel based on cationic starch[J].Carbohydrate Polymers: Scientific and Technological Aspects of Industrially Important Polysaccharides,20094(4):688-693. |
| [8] | 张海龙;杨伟平;黄毅萍;许戈文.新型非离子水性聚氨酯的制备及性能研究[J].涂料工业,2011(6):46-50. |
| [9] | 赵艳娜;杨文富.一种两性聚氨酯的制备及性能研究[J].陕西科技大学学报（自然科学版）,2013(4):55-58. |
| [10] | Kim JY.;Jung WC.;Park KY.;Suh KD..Synthesis of Na+-montmorillonite/amphiphilic polyurethane nanocomposite via bulk and coalescence emulsion polymerization[J].Journal of Applied Polymer Science,200311(11):3130-3136. |
| [11] | 吴存雷.双亲性聚氨酯类胶束的研究进展[J].聚氨酯工业,2006(05):1-4. |
| [12] | 胡慧庆;杨建军;吴庆云;张建安;吴明元.双亲性聚氨酯的制备和应用进展[J].聚酯工业,2008(3):13-15,22. |
| [13] | 叶琳;张明祖;闻荻江.两亲性高聚物的研究进展[J].山东轻工业学院学报（自然科学版）,2005(3):9-13. |
| [14] | 王武生;陈龄.水性聚氨酯性能与结构理论探讨[J].涂料技术与文摘,2009(6):7-15. |
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