用于防火和机械增强硬质聚氨酯泡沫的生物基膨胀阻燃剂

IF 8 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Construction and Building Materials Pub Date : 2025-10-25 DOI:10.1016/j.conbuildmat.2025.144142

Jiatao Cao, Nanlan Shen, Chengshu Yan, Yun Zhao, Chuanbai Yu, Shuai He, Zhenfeng Huang, Wenhui Rao

{"title":"用于防火和机械增强硬质聚氨酯泡沫的生物基膨胀阻燃剂","authors":"Jiatao Cao, Nanlan Shen, Chengshu Yan, Yun Zhao, Chuanbai Yu, Shuai He, Zhenfeng Huang, Wenhui Rao","doi":"10.1016/j.conbuildmat.2025.144142","DOIUrl":null,"url":null,"abstract":"<div><div>Rigid polyurethane foams (RPUFs) have attracted increasing interest in the construction sector due to their lightweight nature and excellent thermal insulation properties. However, their intrinsic flammability significantly restricts their potential applications across various fields. In this study, a bio-based intumescent flame retardant (LP) was synthesized by integrating phytic acid, melamine, and lignin into a single macromolecular structure. The abundant hydroxyl and amine groups in LP establishes remarkable reactivity with isocyanate groups, thereby promoting homogeneous dispersion within the polyurethane matrix. Remarkably, the RPUF/5 %LP composite exhibited a significant 64 % enhancement in longitudinal compressive strength (317.2 kPa) compared to neat RPUF (193.6 kPa). Furthermore, in contrast to neat RPUF, the fire safety of RPUF/LP composites were significantly enhanced. Specifically, the RPUF/10 %LP composite achieved a high LOI value of 24.5 %, a 15.7 % diminution in peak of heat release rate, and a 20.1 % diminution in total smoke production. When LP incorporated with high-expansion-ratio expandable graphite (EG) into RPUF, the flame retardancy of the resulting composites was further enhanced. These findings highlight the feasibility of using renewable bio-based additives to develop high-performance, environmentally friendly flame-retardant foams for construction and building applications.</div></div>","PeriodicalId":288,"journal":{"name":"Construction and Building Materials","volume":"500 ","pages":"Article 144142"},"PeriodicalIF":8.0000,"publicationDate":"2025-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Bio-based intumescent flame retardant for fire-safe and mechanically enhanced rigid polyurethane foams\",\"authors\":\"Jiatao Cao, Nanlan Shen, Chengshu Yan, Yun Zhao, Chuanbai Yu, Shuai He, Zhenfeng Huang, Wenhui Rao\",\"doi\":\"10.1016/j.conbuildmat.2025.144142\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Rigid polyurethane foams (RPUFs) have attracted increasing interest in the construction sector due to their lightweight nature and excellent thermal insulation properties. However, their intrinsic flammability significantly restricts their potential applications across various fields. In this study, a bio-based intumescent flame retardant (LP) was synthesized by integrating phytic acid, melamine, and lignin into a single macromolecular structure. The abundant hydroxyl and amine groups in LP establishes remarkable reactivity with isocyanate groups, thereby promoting homogeneous dispersion within the polyurethane matrix. Remarkably, the RPUF/5 %LP composite exhibited a significant 64 % enhancement in longitudinal compressive strength (317.2 kPa) compared to neat RPUF (193.6 kPa). Furthermore, in contrast to neat RPUF, the fire safety of RPUF/LP composites were significantly enhanced. Specifically, the RPUF/10 %LP composite achieved a high LOI value of 24.5 %, a 15.7 % diminution in peak of heat release rate, and a 20.1 % diminution in total smoke production. When LP incorporated with high-expansion-ratio expandable graphite (EG) into RPUF, the flame retardancy of the resulting composites was further enhanced. These findings highlight the feasibility of using renewable bio-based additives to develop high-performance, environmentally friendly flame-retardant foams for construction and building applications.</div></div>\",\"PeriodicalId\":288,\"journal\":{\"name\":\"Construction and Building Materials\",\"volume\":\"500 \",\"pages\":\"Article 144142\"},\"PeriodicalIF\":8.0000,\"publicationDate\":\"2025-10-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Construction and Building Materials\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S095006182504293X\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CONSTRUCTION & BUILDING TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Construction and Building Materials","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S095006182504293X","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CONSTRUCTION & BUILDING TECHNOLOGY","Score":null,"Total":0}

引用次数: 0

摘要

硬质聚氨酯泡沫（rpuf）由于其轻质和优异的保温性能，在建筑行业引起了越来越多的兴趣。然而，它们固有的可燃性极大地限制了它们在各个领域的潜在应用。以植酸、三聚氰胺和木质素为原料合成了一种生物基膨胀型阻燃剂（LP）。LP中丰富的羟基和胺基团与异氰酸酯基团建立了显著的反应性，从而促进了聚氨酯基体内的均匀分散。值得注意的是，RPUF/5 %LP复合材料的纵向抗压强度（317.2 kPa）比纯RPUF （193.6 kPa）显著提高64 %。此外，与纯RPUF相比，RPUF/LP复合材料的防火安全性显著提高。具体而言，RPUF/10 %LP复合材料的LOI值高达24.5% %，热释放率峰值降低15.7 %，总烟产量降低20.1 %。当LP与高膨胀比的可膨胀石墨（EG）掺入RPUF时，复合材料的阻燃性进一步增强。这些发现强调了使用可再生生物基添加剂开发用于建筑和建筑应用的高性能、环保型阻燃泡沫的可行性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Bio-based intumescent flame retardant for fire-safe and mechanically enhanced rigid polyurethane foams

Rigid polyurethane foams (RPUFs) have attracted increasing interest in the construction sector due to their lightweight nature and excellent thermal insulation properties. However, their intrinsic flammability significantly restricts their potential applications across various fields. In this study, a bio-based intumescent flame retardant (LP) was synthesized by integrating phytic acid, melamine, and lignin into a single macromolecular structure. The abundant hydroxyl and amine groups in LP establishes remarkable reactivity with isocyanate groups, thereby promoting homogeneous dispersion within the polyurethane matrix. Remarkably, the RPUF/5 %LP composite exhibited a significant 64 % enhancement in longitudinal compressive strength (317.2 kPa) compared to neat RPUF (193.6 kPa). Furthermore, in contrast to neat RPUF, the fire safety of RPUF/LP composites were significantly enhanced. Specifically, the RPUF/10 %LP composite achieved a high LOI value of 24.5 %, a 15.7 % diminution in peak of heat release rate, and a 20.1 % diminution in total smoke production. When LP incorporated with high-expansion-ratio expandable graphite (EG) into RPUF, the flame retardancy of the resulting composites was further enhanced. These findings highlight the feasibility of using renewable bio-based additives to develop high-performance, environmentally friendly flame-retardant foams for construction and building applications.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

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.