Preparation and Characterization of Two-component Waterborne Poly-urethane Comprised of Water-soluble Acrylic Resin and HDI Biuret

CIESC Journal

• PROCESS AND PRODUCT TECHNOLOGY • 上一篇下一篇

Preparation and Characterization of Two-component Waterborne Poly-urethane Comprised of Water-soluble Acrylic Resin and HDI Biuret

ZHOUXinhua(周新华),TUWeiping(涂伟萍)andHUJianqing(胡剑青)

Department of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Technologe, Guangzhou 510225, China
Institute of Chemical Engineering, South China University of Technology, Guangzhou 510640,China

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-02-28 发布日期:2006-02-28
通讯作者: TU Weiping(涂伟萍)

Preparation and Characterization of Two-component Waterborne Poly-urethane Comprised of Water-soluble Acrylic Resin and HDI Biuret

Received:1900-01-01 Revised:1900-01-01 Online:2006-02-28 Published:2006-02-28

摘要/Abstract

摘要： A two-component waterborne polyurethane（2K-WPU） was prepared by mixing water-soluble acrylic resin and hexamethylene diisocyanate biuret, and then diluted for phase inversion with water. Compared with water-soluble acrylic resin, the phase inversion of 2K-WPU occurs at lower water content. It is indicated by TEM that 2K-WPU parti-cles show a core-shell structure, in which HDI biuret is encapsulated by hydrophilic acrylic resin. 2K-WPU emulsion with HDI biuret has larger particle size and narrower distribution index, while for 2K-WPU emulsion with HDI iso-cyanurate, the latex not only has large particle size, but also has two-peak distribution. FTIR shows that the reaction be-tween HDI biuret and acrylic resin can complete in 12h. In addition, studies on effect of composition of acrylic resin on performance of 2K-WPU show that narrowing the polar difference between water-soluble acrylic resin and HDI biuret and improving the miscibility of two components are the key to prepare the transparent and high gloss films with high crosslinking density.

关键词: waterborne polyurethane;two-component;acrylic resin;phase inversion

Key words: waterborne polyurethane, two-component, acrylic resin, phase inversion

ZHOUXinhua(周新华),TUWeiping(涂伟萍)andHUJianqing(胡剑青). Preparation and Characterization of Two-component Waterborne Poly-urethane Comprised of Water-soluble Acrylic Resin and HDI Biuret[J]. CIESC Journal.

参考文献

1    Yang, W.P., “Thermal and mechanical properties of wa-terborne polyurethanes”, Polym. Mater. Sci. Eng., 66, 216—217 (1992).
2    Kim, B.K., Kim, T.K., Jeong, H.M., “Aqueous dispersion of polyurethane anionomers from H12MDI/IPDI, PCL,BD, and DMPA”, J. Appl. Polym. Sci., 53, 371—378 (1994).
3    Valentino, J.T., Thomas, M.E., Coughlin, R.D., “Synthe-sis and coatings properties of novel water-borne poly-urethane dispersions”, Polym. Mater. Sci. Eng., 73, 99—101 (1995).
4    Dvorchak, M.J., “Using high performance two-compoment waterborne  polyurethane wood coatings”, J. Coat. Tech-nol., 866, 47—52 (1997).
5    Coogan, R.G., “Post-crosslinking of water-borne ure-thanes”, Prog. Org. Coat., 32, 51—63 (1997).
6    Kahl, L., Bock, M., “Waterborne two-component PU clear coats for automotive coatings: Development of raw materials and mixing technology”, In: Proceeding of 3rd Nurnberg congress, Nurnburg, Germany (1995).
7    O’Connor, J.M.,Chen, A.T., Blackwell, R.S., Morgan, M.J., “Two-component waterborne polyurethane coat-ings based on low viscosity hydrophobic polyisocy-anates”, In: Proc. 24th Waterborne, High Solids and Powder Coatings Symp., New Orleans, LA (1997).
8    Fiori, D.E., “Two-component water reducible polyure-thane coatings”, Prog. Org. Coat., 32, 65—71 (1997).
9    Renk, C.A., Schwartz, A.J., “Fast drying, ultra low vola-tile org. compd. (VOC), two-component waterborne polyurethane coatings for the wood industry”, In: Pro-ceedings of the Waterborne High-solids Powder Coating Symposium, New Orleans, LA (1995).
10    Mosbach, J., Laas, H.J., Kubitza,W., “Polyisocyanate mixtures, processes for their production and their use as binders for coating compositions or as reactants for com-pounds reactive to isocyanate groups or carboxyl groups”, U.S.Pat., 5098983 (1992).
11    Aberle, H., “Water-emulsifiable polyisocyanates”, U.S.Pat., 5583176 (1996).
12    Reiff, H., “Polyisocyanate mixtures, a process for their production and their use”, U.S.Pat., 5258452 (1993).
13    Dell, W., Kubitza, W., Liebsch, D., “Process for the preparation of polyisocyanates  containing uretdione and isocyanurate groups, the polyisocyanates obtained by this process and their use in two-component polyure-thane coatings”, U.S.Pat., 4994541 (1991).
14    Zerfa, M., Sajjadi,S., Brooks, B.W., “Phase behaviour of polymer emulsions during the phase inversion process in the presence of non-ionic surfactants”, Colloids and Sur-faces A: Physicochemical and Engineering Aspects, 178, 41—48 (2001).
15    Gu, Y.X., Huang, Y.H., Liao, B., Cong, G.M., Xu, M., “Studies on the characterization of phase inversion dur-ing emulsification and the particle sizes of waterborne microemulsion of poly(phenylene oxide) ionomer”, J. Appl. Polym. Sci., 76, 690—694 (2000).
16    Yang, Z.Z., Xu, Y.Z., Zhao, D.L., Xu, M., “Preparation of waterborne dispersions of epoxy resin by the phase-inversion emulsification technique”, Colloid. Po-lym. Sci., 278, 1164—1171 (2000).
17    Sherwin, M.A., “Solution properties of high solids in-termediates”, J. Coat. Technol., 683, 35—43 (1981).

Preparation and Characterization of Two-component Waterborne Poly-urethane Comprised of Water-soluble Acrylic Resin and HDI Biuret

Preparation and Characterization of Two-component Waterborne Poly-urethane Comprised of Water-soluble Acrylic Resin and HDI Biuret

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

编辑推荐

Metrics

本文评价