Macromolecular Chemistry and Physics, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 31, 2024

Abstract Smart windows can effectively balance the space temperature of buildings without compromising essential functions windows. However, conventional thermochromic have limited sunlight regulation capabilities and face challenges with switching as desired. Herein, A class novel smart based on crystal hydrogels is introduced that achieve free between transparent (for heating) opaque radiative cooling) states through thermal mechanical stimuli. The are made from cross‐linked polyacrylamide (PAM) sodium acetate (NaAc). By optimizing concentration sample thickness, combination excellent cooling ability achieved at state good low‐temperature stability in hydrogels. Using optimized hydrogel to prepare a window equipped heater trigger tip, rapid on‐demand transition demonstrated. results indicate lowers temperatures by up 9.4 °C compared ordinary maintains stable emissivity reflectivity even after 100 cycles due its robust solar modulation capabilities. This technology provides new energy‐saving solutions for but also explores future applications materials, showcasing innovative advantages technical strengths

Language: Английский