Improved thermal insulation, mechanical properties, energy absorption and flame retardancy of bio-based rigid polyurethane foam modified with calcium hydroxystannate

IF 7.4 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Construction and Building Materials Pub Date : 2024-11-22 DOI:10.1016/j.conbuildmat.2024.139251

Xu Zhang , Zhaoqian Wang , Shuai Ding , Zhi Wang , Xua Xie

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引用次数: 0

Abstract

Rigid polyurethane foam (RPUF) is an important energy-saving building material that has attracted much attention. However, it is still a great challenge to effectively prepare RPUF materials with thermal insulation, flame retardant and mechanical properties. In this paper, the non-toxic and halogen-free flame retardant calcium hydroxystannate (CSH) was prepared by a simple and green chemical co-precipitation method, and a low-carbon and environmentally friendly RPUF material was prepared by combining it with RPUF−SO2/Ni3 (10 % wt soybean oil-based polyol and 3 % wt nickel phytate). It was found that SO2/Ni3/CSH4 containing 4 wt% CSH exhibited excellent thermal insulation performance. TG analysis showed that SO2/Ni3/CSH4 had higher initial temperature and activation energy, and its thermal stability was significantly improved. Peak heat release rate (PHRR), total heat release (THR), peak smoke production rate (PSPR), total smoke release (TSR) and Ds were 26.30 %, 17.16 %, 26.67 %, 23.95 % and 11.38 % lower than those of RPUF−SO2/Ni3, respectively. In addition, the compressive strength of SO2/Ni3/CSH4 was increased by 31.10 %, and it also had excellent energy absorption properties. This study provides new ideas for the design of high-performance and multifunctional low-carbon RPUFs, which have potential applications in aerospace and construction.

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来源期刊

Construction and Building Materials 工程技术-材料科学：综合

CiteScore

13.80

自引率

21.60%

发文量

3632

审稿时长

82 days

期刊介绍： Construction and Building Materials offers an international platform for sharing innovative and original research and development in the realm of construction and building materials, along with their practical applications in new projects and repair practices. The journal publishes a diverse array of pioneering research and application papers, detailing laboratory investigations and, to a limited extent, numerical analyses or reports on full-scale projects. Multi-part papers are discouraged. Additionally, Construction and Building Materials features comprehensive case studies and insightful review articles that contribute to new insights in the field. Our focus is on papers related to construction materials, excluding those on structural engineering, geotechnics, and unbound highway layers. Covered materials and technologies encompass cement, concrete reinforcement, bricks and mortars, additives, corrosion technology, ceramics, timber, steel, polymers, glass fibers, recycled materials, bamboo, rammed earth, non-conventional building materials, bituminous materials, and applications in railway materials.