Hollow Core-Shell Particle-Containing Coating for Passive Daytime Radiative Cooling

Dandan Hu; Shuai Sun; Peiyao Du; Xiaoquan Lu; Hui Zhang; Zhong Zhang

doi:10.1016/j.compositesa.2022.106949

Hollow Core-Shell Particle-Containing Coating for Passive Daytime Radiative Cooling

Dandan Hu
, Shuai Sun
, Peiyao Du
, Xiaoquan Lu
, Hui Zhang
, Zhong Zhang

Tianjin University
National Center for Nanoscience and Technology

Research output: Contribution to journal › Article › peer-review

80 Scopus citations

Abstract

Passive daytime radiative cooling has received raising attention as a promising strategy for thermal management. Among various radiative cooling coatings, the particles-containing coating has a more practical application prospect because it can be produced on a large scale. Works on the investigation of the particle structure are still lack. Herein, hollow SiO₂@TiO₂ core–shell particles (HCSP) and HCSP-containing silicone radiative cooling coating (RCC) were prepared. With stronger backscattering of HCSP, RCC reflected incident sunlight and emitted mid-infrared light efficiently, compared to the commercial white paint and hollow spheres coating, having the maximum R_solar of 0.97 and maximum ε_ATW of 0.95. It exhibited favorable cooling properties with a temperature drop of 5.26 °C illuminated under solar simulator and an average temperature drop of 6.9 °C simulated with COMSOL. RCC also showed good thermal insulation properties with a low thermal conductivity of 0.15 W·m⁻¹·K⁻¹.

Original language	English
Article number	106949
Journal	Composites Part A: Applied Science and Manufacturing
Volume	158
DOIs	https://doi.org/10.1016/j.compositesa.2022.106949
State	Published - Jul 2022
Externally published	Yes

Keywords

Optical properties (B)
Particle-reinforcement (A)
Polymer-matrix composites (A)
Thermal properties (B)

Access to Document

10.1016/j.compositesa.2022.106949

Cite this

@article{adaae192218047728ac767bcdb5cf1bc,

title = "Hollow Core-Shell Particle-Containing Coating for Passive Daytime Radiative Cooling",

abstract = "Passive daytime radiative cooling has received raising attention as a promising strategy for thermal management. Among various radiative cooling coatings, the particles-containing coating has a more practical application prospect because it can be produced on a large scale. Works on the investigation of the particle structure are still lack. Herein, hollow SiO2@TiO2 core{\textendash}shell particles (HCSP) and HCSP-containing silicone radiative cooling coating (RCC) were prepared. With stronger backscattering of HCSP, RCC reflected incident sunlight and emitted mid-infrared light efficiently, compared to the commercial white paint and hollow spheres coating, having the maximum Rsolar of 0.97 and maximum εATW of 0.95. It exhibited favorable cooling properties with a temperature drop of 5.26 °C illuminated under solar simulator and an average temperature drop of 6.9 °C simulated with COMSOL. RCC also showed good thermal insulation properties with a low thermal conductivity of 0.15 W·m−1·K−1.",

keywords = "Optical properties (B), Particle-reinforcement (A), Polymer-matrix composites (A), Thermal properties (B)",

author = "Dandan Hu and Shuai Sun and Peiyao Du and Xiaoquan Lu and Hui Zhang and Zhong Zhang",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

month = jul,

doi = "10.1016/j.compositesa.2022.106949",

language = "英语",

volume = "158",

journal = "Composites Part A: Applied Science and Manufacturing",

issn = "1359-835X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Hollow Core-Shell Particle-Containing Coating for Passive Daytime Radiative Cooling

AU - Hu, Dandan

AU - Sun, Shuai

AU - Du, Peiyao

AU - Lu, Xiaoquan

AU - Zhang, Hui

AU - Zhang, Zhong

PY - 2022/7

Y1 - 2022/7

N2 - Passive daytime radiative cooling has received raising attention as a promising strategy for thermal management. Among various radiative cooling coatings, the particles-containing coating has a more practical application prospect because it can be produced on a large scale. Works on the investigation of the particle structure are still lack. Herein, hollow SiO2@TiO2 core–shell particles (HCSP) and HCSP-containing silicone radiative cooling coating (RCC) were prepared. With stronger backscattering of HCSP, RCC reflected incident sunlight and emitted mid-infrared light efficiently, compared to the commercial white paint and hollow spheres coating, having the maximum Rsolar of 0.97 and maximum εATW of 0.95. It exhibited favorable cooling properties with a temperature drop of 5.26 °C illuminated under solar simulator and an average temperature drop of 6.9 °C simulated with COMSOL. RCC also showed good thermal insulation properties with a low thermal conductivity of 0.15 W·m−1·K−1.

AB - Passive daytime radiative cooling has received raising attention as a promising strategy for thermal management. Among various radiative cooling coatings, the particles-containing coating has a more practical application prospect because it can be produced on a large scale. Works on the investigation of the particle structure are still lack. Herein, hollow SiO2@TiO2 core–shell particles (HCSP) and HCSP-containing silicone radiative cooling coating (RCC) were prepared. With stronger backscattering of HCSP, RCC reflected incident sunlight and emitted mid-infrared light efficiently, compared to the commercial white paint and hollow spheres coating, having the maximum Rsolar of 0.97 and maximum εATW of 0.95. It exhibited favorable cooling properties with a temperature drop of 5.26 °C illuminated under solar simulator and an average temperature drop of 6.9 °C simulated with COMSOL. RCC also showed good thermal insulation properties with a low thermal conductivity of 0.15 W·m−1·K−1.

KW - Optical properties (B)

KW - Particle-reinforcement (A)

KW - Polymer-matrix composites (A)

KW - Thermal properties (B)

UR - https://www.scopus.com/pages/publications/85127793513

U2 - 10.1016/j.compositesa.2022.106949

DO - 10.1016/j.compositesa.2022.106949

M3 - 文章

AN - SCOPUS:85127793513

SN - 1359-835X

VL - 158

JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

M1 - 106949

ER -

Hollow Core-Shell Particle-Containing Coating for Passive Daytime Radiative Cooling

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this