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超支化水性聚氨酯共混改性聚氨酯乳液的性能研究

Keywords: 超支化,水性聚氨酯,剪切黏度,表面张力

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Abstract:

利用乙酸酐对自身可以水分散的超支化水性聚氨酯(WHBPU)进行封端,得到了乙酰基封端的超支化水性聚氨酯(AWHBPU).研究了超支化水性聚氨酯共混改性聚氨酯乳液的剪切黏度、粒径分布以及表面张力.实验结果表明,对WHBPU羟基的封闭可以有效降低共混聚氨酯乳液的黏度;AWHBPU共混乳液偏离牛顿流体程度明显下降;粒径和表面张力测试表明,超支化水性聚氨酯进入胶束内部引起粒径上升是引起黏度下降的重要原因.

References

[1]  许戈文.水性聚氨酯材料[M].北京:化学工业出版社,2006. Xu Gewen. Water-borne polyurethane materials[M]. Beijing: Chemical Industry Press,2006.(in Chinese)
[2]  谭惠民,罗运军.超支化聚合物[M].北京:化学工业出版,2005. Tan Huimin, Luo Yunjun. Hyperbranched polymers[M]. Beijing: Chemical Industry Press,2005. (in Chinese)
[3]  Bernd B. Dendritic polymers based on urethane chemistry-syntheses and applications[J]. Macromol Mater Eng, 2007,292:981-992.
[4]  Bao Fengfeng, Shi Wenfang. Synthesis and properties of hyperbranched polyurethane acrylate used for UV curing coatings[J]. Progress in Organic Coatings,2010,68:334-339.
[5]  Pradip K M, Nisith K D. Preparation and properties of polyurethane nanocomposites of novel architecture as advanced barrier materials[J]. Polymer, 2010,51:1100-1110.
[6]  吴其晔,巫静安.高分子材料流变学[M].北京:高等教育出版社,2002. Wu Qiye, Wu Jingan. Polymer rheology[M]. Beijing: Higher Education Press, 2002. (in Chinese)
[7]  Samy A M, Joshua U O. Rheological behavior of aqueous polyurethane dispersion: effects of solid content, degree ofneutralization, chain extension, and temperature[J]. Macromolecules, 2005,38:4014-4023.
[8]  Drew M. Surfaces, interfaces, and colloids: principles and applications[M]. New York: John Wiley & Sons, Inc,1999.
[9]  Liu Dan, Zeng Shaomin. Synthesis and properties of highly branched poly(urethane-imide) via A2+B3 approach[J]. Polym Bull, 2010,64:877-890.
[10]  孙宁,童真,黄达昌.超支化水性聚氨酯及其制备方法:中国,CN 101440150A.2008-12-18. Sun Ning, Tong Zhen, Huang Dachang. Hyperbranched water-borne polyurethane and its method of preparation: China, CN 101440150A. 2008-12-18. (in Chinese)
[11]  王雪峰,柳宇航,李远,等.加核型超支化水性聚氨酯的制备与表征[J].聚氨酯工业,2011,26(2):11-14. Wang Xuefeng, Liu Yuhang, Li Yuan, et al. Synthesis and characterization of hyperbranched waterborne polyurethane with core[J]. Polyurethane Industry, 2011,26(2):11-14. (in Chinese)
[12]  Pion F, Kishore K J, Shaik A. Preparation and characterization of waterborne hyperbranched polyurethane-urea and their hybrid coatings[J]. Ind Eng Chem Res, 2010,49:4517-4527.
[13]  Mulkern T J, Beck N C. Processing and characterization of reactive polystyrene/ hyperbran-ched polyester blends[J]. Ind Eng Chem Res, 2010,49:4517-4527.

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