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US 2023/0416537 A1Published application
Colorful Low-Emissivity Paints for Space Heating and Cooling Energy Efficiency
AssigneeThe Board of Trustees of the Leland Stanford Junior University
InventorsYi Cui, Zhenan Bao, Yucan Peng, Jiancheng Lai
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Abstract
A bilayer coating for thermal management has a bottom layer composed of aluminum microflakes dispersed in a Nitrile Butadiene Rubber-co-Urea (NBR-U) polymer binder, and a top layer composed of nanoparticle pigments in the NBR-U polymer binder. The top layer has a transmittance larger than 0.7 at IR wavelengths, and the bottom layer has an emissivity less than 0.4 and a reflectance larger than 0.6 in mid-IR wavelengths from 7 to 14 μm.
Claims12
A bilayer coating for thermal management comprising:
- a bottom layer composed of aluminum microflakes dispersed in a Nitrile Butadiene Rubber-co-Urea (NBR-U) polymer binder, wherein the bottom layer has an emissivity less than 0.4 and a reflectance larger than 0.6 in mid-IR wavelengths from 7 to 14 μm;
- a top layer composed of nanoparticle pigments in the NBR-U polymer binder, wherein the top layer has a transmittance larger than 0.7 at IR wavelengths.
Dependencies are inferred from the claim text.