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Study on the Preparation of PU/HBP-NH2 Blend Film and Its Properties

机译：PU / HBP-NH2共混膜的制备及其性能研究

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The blend films of polyurethane (PU) and amino-terminal hyperbranched polymers (HBP-NH2) were prepared successfully by mixing HBP-NH2 solution and PU. The rate of moisture absorption and mechanical properties were determined. The results showed that the rates of moisture absorption and vapor permeability were improved from 0.34% to 7.51% and from 161 gm(-2) d(-1) to 879 gm(-2) d(-1), respectively. The addition of HBP-NH2 is helpful to improve the hygiene properties of PU films. Then, the structures of the blend films were characterized by IR, XRD, TG, and SEM at the same time. The results indicated that HBP-NH2 and PU had hydrogen-bond interaction and a certain phase separation. The blend films had good heat stability. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41383.
机译：通过将HBP-NH2溶液和PU混合，成功制备了聚氨酯（PU）和氨基端超支化聚合物（HBP-NH2）的共混膜。测定了吸湿率和机械性能。结果表明，吸湿率和透湿率分别从0.34％提高到7.51％，从161 gm（-2）d（-1）提高到879 gm（-2）d（-1）。加入HBP-NH2有助于改善PU膜的卫生性能。然后，通过IR，XRD，TG和SEM同时表征共混膜的结构。结果表明，HBP-NH2与PU具有氢键相互作用和一定的相分离作用。共混膜具有良好的热稳定性。 （c）2014 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，41383。

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