采用种子乳液聚合和后扩链法,以聚氨酯(PU)乳液为种子,乙二胺基乙磺酸钠(AAS)为后扩链剂、甲基丙烯酸甲酯(MMA)、丙烯酸丁酯(BA)、全氟辛基乙基丙烯酸酯(FA)作为自由基聚合单体,合成了乳胶粒微观形态为核壳结构的无溶剂型含氟聚氨酯-丙烯酸酯(FPUA)复合乳液.考察了FA和AAS用量对乳液和乳胶膜性能的影响.通过傅立叶红外光谱(FT-IR)、X光电子能谱(XPS)、原子力显微镜(AFM)、透射电子显微镜(TEM)、接触角(CA)和胶膜吸水率等表征了FPUA的结构、微观形态、乳胶膜的表面性能.结果表明,乳胶粒子呈现核壳结构,以聚丙烯酸酯(PA)为核,PU相为壳,由于FA的作用,涂膜的疏水性得到了较大的提高.适量后扩链剂AAS的引入可提高聚氨酯-聚丙烯酸酯(PUA)的自乳化能力,增加含氟乳液的稳定性.
参考文献
| [1] | 李刚辉;李小瑞;沈一丁.聚氨酯-含氟丙烯酸酯复合乳液的制备及其表面性能[J].化工学报,2006(1):192-196. |
| [2] | Hyejin Lim;Yongtaek Lee;In Jun Park;Soo-Bok Lee.Synthesis and Surface Property of Aqueous Fluorine-Containing Polyurethane[J].Journal of Colloid and Interface Science,20011(1):269-274. |
| [3] | Baek SH.;Kim BK..Synthesis of polyacrylamide/polyurethane hydrogels by latex IPN and AB crosslinked polymers[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,20031/3(1/3):191-198. |
| [4] | Wang GJ;Klang CS;Jin RG.Synthesis of acrylic core-shell composite polymers and properties of plastisol-gels[J].Progress in Organic Coatings: An International Review Journal,20041(1):55-61. |
| [5] | Yi-Ding Shen;Yan-Na Zhao;Xiao-Rui Li.Polyacrylate/silica hybrids prepared by emulsifier-free emulsion polymerization and the sol-gel process[J].Polymer bulletin,20095(5):687-698. |
| [6] | Dong-ming Qi;Zhi-ming Huang;Zhi-xue Weng;Yong-zhong Bao.Preparation of acrylate polymer/silica nanocomposite particles with high silica encapsulation efficiency via miniemulsion polymerization[J].Polymer: The International Journal for the Science and Technology of Polymers,200613(13):4622-4629. |
| [7] | Shin, M.;Lee, Y.;Rahman, M.;Kim, H..Synthesis and properties of waterborne fluorinated polyurethane-acrylate using a solvent-/emulsifier-free method[J].Polymer: The International Journal for the Science and Technology of Polymers,201318(18):4873-4882. |
| [8] | Xin, H.;Shen, Y.;Li, X..Novel cationic polyurethane-fluorinated acrylic hybrid latexes: Synthesis, characterization and properties[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,20111/3(1/3):205-211. |
| [9] | B.Ameduri;B.Boutevin;G.Kostov.Fluoroelastomers:Synthesis, properties and applications[J].Progress in Polymer Science,20011(1):105-187. |
| [10] | Ibrahim Erol.Novel methacrylate copolymers with fluorine containing: Synthesis, characterization, reactivity ratios, thermal properties and biological activity[J].Journal of Fluorine Chemistry,20087(7):613-620. |
| [11] | Xiao, XY;Wang, Y.Emulsion copolymerization of fluorinated acrylate in the presence of a polymerizable emulsifier[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,20091/3(1/3):151-156. |
| [12] | Deng JN;Cao J;Li JH;Tan H;Zhang Q;Fu Q.Mechanical and surface properties of polyurethane/fluorinated multi-walled carbon nanotubes composites[J].Journal of Applied Polymer Science,20083(3):2023-2028. |
| [13] | 费贵强;陈宗明;沈一丁;王海花;朱科.GMA改性无溶剂阴离子聚氨酯/丙烯酸酯复合乳液的合成及性能研究[J].功能材料,2013(9):1257-1260. |
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