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首页> 外文期刊>Journal of Applied Polymer Science >Design of thermochromic polymer blends containing low-mass compounds
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Design of thermochromic polymer blends containing low-mass compounds

机译：含有低质量化合物的热致变色聚合物共混物的设计

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摘要

We investigated the light transmittance of an immiscible polymer blend comprising a copolymer of ethylene and vinyl acetate (EVA) and a terpolymer of vinyl butyral, vinyl alcohol, and vinyl acetate (PVB). Both EVA and PVB are used in the interlayers of laminated glass. We found that the transparency of the blend depends on the ambient temperature. This can be attributed to the difference in the temperature dependence of the refractive index between EVA and PVB. The blend has good transparency at room temperature because the difference between the refractive indices of its components is minimal. At high or low temperatures, however, the blend becomes opaque owing to light scattering. The addition of a plasticizer favorably affects the temperature range over which the blend exhibits high transparency, because the refractive index and its temperature dependence are affected by the plasticizer. We also evaluated the interphase transfer of a plasticizer between EVA and PVB at various temperatures. (C) 2017 Wiley Periodicals, Inc.
机译：我们研究了包含乙烯和乙酸乙烯酯（EVA）的共聚物和乙烯基丁醇，乙烯醇和乙酸乙烯酯（PVB）的三元共聚物的不混溶聚合物共混物的透光率。 EVA和PVB都用于层压玻璃的中间层。我们发现混合物的透明度取决于环境温度。这可以归因于EVA和PVB之间折射率的温度依赖性的差异。在室温下，混合物具有良好的透明度，因为其组件的折射率之间的差异很小。然而，在高温或低温下，由于光散射，混合物变得不透明。添加增塑剂有利地影响混合物具有高透明度的温度范围，因为折射率及其温度依赖性受增塑剂的影响。我们还评估了在各种温度下EVA和PVB之间的增塑剂的间环转移。 （c）2017 Wiley期刊，Inc。

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