One‐Component Stereoscopic Oligosiloxane–Based Polyurea Radiative Cooling Coatings DOI
Wenhui Zhou, Zhipeng Zhang,

Shuo Sun

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Май 19, 2025

Abstract Passive daytime radiative cooling (PDRC) technology is an emerging and promising zero‐carbon solution. However, existing PDRC materials usually exhibit poor mechanical properties lack self‐cleaning ability, which can reduce the lifespan of coating affect its effect. To address these challenges, a one‐component stereoscopic oligosiloxane–based polyurea developed. The fabricated by integrating blocked amine–oligosiloxane nanoclusters, isocyanate‐terminated curing agents, inorganic aluminum oxide (Al 2 O 3 ) particles. unique oligosiloxane structure, characterized high functionality self‐reinforcing effect, endows with highly cross‐linked organic–inorganic hybrid network structure. This structure provides exceptional hardness modulus for coating, surface ≈227 Mpa ≈9.7 Gpa. In addition, infrared emissivity Si─O─Si bonds reflectivity Al enable to have excellent effect ≈9 °C below ambient temperature during daytime. also exhibits versatility. introduction polydimethylsiloxane (PDMS) antifouling properties. Furthermore, spraying fluorinated nanosilica (F─SiO on enables superhydrophobicity water droplet power generation. novel sustainable solution buildings.

Язык: Английский

Research Progresses in Methods for Improving the Properties of Dynamic Covalent Polymer Networks DOI Open Access
Guangchao Han,

Wanru Yang,

Hao Ling

и другие.

Macromolecular Chemistry and Physics, Год журнала: 2025, Номер unknown

Опубликована: Март 17, 2025

Abstract Dynamic covalent polymer networks (DCPNs) are a class of cross‐linked polymeric materials with good self‐healing properties, processability, and recyclability. These generally possess dynamic bonds which can undergo reversible cleavage reformation under certain conditions. The cross‐linking nature the endows them needed mechanical strength as well processibility, effectively bridging gap between traditional thermosets thermoplastics. However, in many cases, relying on alone cannot always achieve satisfactory material so modification DCPNs has been one hot spots this area. This review summarizes recent research progress DCPNs, including introduction multiple filler blending, analyzes how modifications improve specific properties. provides comprehensive overview diverse methods to manipulate structures properties may expand their potential applications.

Язык: Английский

Процитировано

0
One‐Component Stereoscopic Oligosiloxane–Based Polyurea Radiative Cooling Coatings DOI
Wenhui Zhou, Zhipeng Zhang,

Shuo Sun

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Май 19, 2025

Abstract Passive daytime radiative cooling (PDRC) technology is an emerging and promising zero‐carbon solution. However, existing PDRC materials usually exhibit poor mechanical properties lack self‐cleaning ability, which can reduce the lifespan of coating affect its effect. To address these challenges, a one‐component stereoscopic oligosiloxane–based polyurea developed. The fabricated by integrating blocked amine–oligosiloxane nanoclusters, isocyanate‐terminated curing agents, inorganic aluminum oxide (Al 2 O 3 ) particles. unique oligosiloxane structure, characterized high functionality self‐reinforcing effect, endows with highly cross‐linked organic–inorganic hybrid network structure. This structure provides exceptional hardness modulus for coating, surface ≈227 Mpa ≈9.7 Gpa. In addition, infrared emissivity Si─O─Si bonds reflectivity Al enable to have excellent effect ≈9 °C below ambient temperature during daytime. also exhibits versatility. introduction polydimethylsiloxane (PDMS) antifouling properties. Furthermore, spraying fluorinated nanosilica (F─SiO on enables superhydrophobicity water droplet power generation. novel sustainable solution buildings.

Язык: Английский

Процитировано

0