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Natural Leather for All-Day Radiative Cooling and Multiple Application Scenarios.

Dangge Gao1,2,3, Weijian Du1,2,3, Bin Lyu1,2,3

  • 1College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, China.

Small (Weinheim an Der Bergstrasse, Germany)
|April 5, 2026
PubMed
Summary
This summary is machine-generated.

Scientists developed a new radiative cooling coating for natural leather using Poly(methyl methacrylate-butyl acrylate-trifluoroethyl methacrylate) (PMBTF) and paraffin wax@SiO2 particles. This innovative material significantly reduces leather overheating, expanding its summer usability.

Keywords:
composite coatingnatural leatherradiative coolingthermal management

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Textile Engineering

Background:

  • Extreme heat events due to global warming cause overheating in natural leather products.
  • Poor thermal dissipation in natural leather limits its seasonal use during summer, leading to discomfort.

Purpose of the Study:

  • To develop a natural leather material with all-day radiative cooling performance.
  • To address the challenge of thermal discomfort and overheating in leather goods during hot weather.

Main Methods:

  • Coating natural leather with Poly(methyl methacrylate-butyl acrylate-trifluoroethyl methacrylate) (PMBTF) and paraffin wax@SiO2 (PW@SiO2) core-shell particles.
  • Enhancing atmospheric window emissivity through synergistic effects of chemical bonds (C─F/C─O in PMBTF, Si─O in SiO2).
  • Improving solar scattering and reflectance using the core-shell structure of PW@SiO2.

Main Results:

  • Achieved enhanced atmospheric window emissivity (96.5%) and high solar reflectance (96.8%).
  • Demonstrated significant daytime net radiative cooling power (134.5 W m-2).
  • Reduced temperature by 9.1°C compared to ambient and 7.1°C compared to untreated leather.

Conclusions:

  • The developed PMBTF/PW@SiO2/Leather exhibits superior radiative cooling performance.
  • This innovation offers novel strategies to mitigate summer overheating of natural leather.
  • Expands application scenarios for leather products and enhances their high-value utilization.