Facile fabrication of multifunctional energy-saving building materials with excellent thermal insulation, robust mechanical property and ultrahigh flame retardancy

Richeng Lian, Mingyu Ou, Haocun Guan, Jiahui Cui, Junxiu Piao, Tingting Feng, Jinyong Ren, Yaxuan Wang, Yaofei Wang, Lei Liu, Xilei Chen and Chuanmei Jiao

Energy, 2023, vol. 277, issue C

Abstract: Rigid polyurethane foam (RPUF) has received extensive attention as an energy-saving building material. However, it is still a great challenge to easily fabricate multifunctional RPUFs that combine excellent mechanical properties, flame retardancy, and thermal insulation. Herein, ammonium polyphosphate was chemically modified with 2-aminobenzimidazole (APP@Abz) through an ion exchange reaction. It has been found that APP@Abz is well-dispersed in RPUF matrix. FR-RPUF3 containing 10.0 wt% of APP@Abz shows excellent thermal insulation performance with a 5% increase in thermal conductivity compared to virgin RPUF. In addition, FR-RPUF3 exhibits ultrahigh flame retardancy and smoke suppression (total heat release, total smoke production, and smoke factor decreased by 50.61%, 61.90%, and 64.70%, respectively) in comparison to virgin RPUF. More importantly, FR-RPUF3 exhibits improved mechanical properties and hydrophobicity compared to virgin RPUF. This study is of great importance for the development and application of building insulation materials.

Keywords: Energy-saving materials; Rigid polyurethane foam; Thermal insulation performance; Flame retardancy; Mechanical property (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544223011672
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:277:y:2023:i:c:s0360544223011672

DOI: 10.1016/j.energy.2023.127773

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().