低炭素建築断熱向けの防火性放射冷却ポリウレタンフォームの微細気泡・ナノドメイン工学
Microcellular–nanodomain engineering of fire-safe radiative-cooling polyurethane foams for low-carbon building insulation (原題)
Yao Yuan, Qinhe Guo, Min Chen, Long Mao, Ying Pan, Yan Zhang, Lulu Xu, Kate Thuy Quynh Nguyen, Wei Wang
🤖 gxceed AI 要約
日本語
建築断熱用硬質ポリウレタンフォームに、界面設計したt-TiO2@SA-Coナノハイブリッドを導入し、微細気泡構造を保ちながら放射冷却機能と防火性を付与した研究。太陽反射率は68.5%から83.4%へ向上し、大気窓放射率96.9%、最大13.1℃の屋外冷却差を実現。ピーク発熱速度・総発熱量・総発煙量を大幅低減し、圧縮強度も向上。EnergyPlusシミュレーションで冷房エネルギー需要と運用CO2排出の削減効果を示した。
English
A fire-resilient radiative-cooling rigid polyurethane foam is engineered by integrating interfacially designed t-TiO2@SA-Co nanohybrids into the foam skeleton while preserving its cellular structure. Solar reflectance rises from 68.5% to 83.4% with 96.9% atmospheric-window emissivity, yielding up to 13.1°C outdoor cooling, while peak heat release, total heat release and smoke drop by 49.8%, 35.6% and 65.4%. Compressive strength improves from 352 to 420 kPa, and EnergyPlus simulations link the material to lower cooling-energy demand and operational CO2 emissions.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
建築物の省エネ・脱炭素は日本のGX政策（省エネ法改正、ZEH/ZEB、建築物省エネ法）の中核であり、断熱材の高性能化はScope1・2削減に直結する。ただし本論文は材料開発段階で、SSBJや有報開示との直接の接点はない。
In the global GX context
Building decarbonization is central to global net-zero pathways and increasingly covered under CSRD/ISSB building-sector disclosures, where material-level efficiency gains feed into Scope 1/2 accounting. This paper offers a materials-science route to lower operational emissions, though it does not itself engage disclosure frameworks.
👥 読者別の含意
🔬研究者:放射冷却と防火性を両立させる微細気泡・ナノドメイン設計の材料戦略として参考になる。
🏢実務担当者:断熱材の省エネ性能と防火安全性を同時に高める材料選定の選択肢として注目できる。
🏛政策担当者:建築物省エネ基準の強化やZEH/ZEB推進における高性能断熱材の可能性を示す。
📄 Abstract（原文）
Conventional rigid polyurethane foam (RPUF) is widely used for building insulation, yet its porous organic framework is vulnerable to solar heat accumulation, fire hazards, smoke release, and limited outdoor service durability. Here, a fire-resilient radiative-cooling polyurethane insulation foam is developed through microcellular–nanodomain engineering, in which interfacially engineered t-TiO 2 @SA-Co nanohybrids are structure-preservingly integrated within an RPUF matrix. The optimized RPUF/APP/t-TiO 2 @SA-Co preserves the intrinsic cellular framework while anchoring TiO 2 -based nanodomains within the foam skeleton and cell-wall regions, enabling coupled solar backscattering, atmospheric-window thermal emission, interfacial reinforcement, and condensed-phase fire protection. The optimized foam increases solar reflectance from 68.5% to 83.4% while maintaining a high atmospheric-window emissivity of 96.9%, enabling a maximum outdoor cooling difference of 13.1 °C. It simultaneously reduces peak heat release rate, total heat release, and total smoke release by 49.8%, 35.6%, and 65.4%, respectively, relative to pristine RPUF. TG–IR and char analyses indicate lower relative evolved-gas signals together with formation of a compact phosphorus-rich, inorganic-reinforced barrier. The foam further improves compressive strength from 352 to 420 kPa, while maintaining high antibacterial activity and exhibiting improved appearance stability after up to 50 h of solar exposure. EnergyPlus simulations connect the material-level cooling response with reduced cooling-energy demand and operational CO 2 emissions, providing a scalable route toward fire-safer and energy-efficient polymeric insulation foams.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.cej.2026.183057first seen 2026-10-18 04:48:57
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