{"title":"A fire-retardant coating for wood made from chitosan itaconate","authors":"","doi":"10.1016/j.porgcoat.2024.108793","DOIUrl":null,"url":null,"abstract":"<div><p>Wood is becoming increasingly popular again due to an increased environmental awareness. However, wood generally needs protection from a number of external influences such as moisture, UV, stains, and also fire. The latter is a particular challenge for building materials because once ignited, untreated wood usually burns down completely without the need for a continuous external heat supply. We have recently developed a sustainable coating based on polymerised chitosan itaconate, which protects wood against moisture, UV, and stains. Free-standing chitosan itaconate films were now found to be non-flammable and do not melt when exposed to fire. Thermogravimetric analyses of these films underscore the importance of polymerisation to increase the thermal stability. When applied to wood surfaces, the coating delays the ignition and the spreading of flames. A single application already reduces the burning rate by one third. With multiple layers of the coating, the samples extinguish as soon as the external flame is removed.</p></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":null,"pages":null},"PeriodicalIF":6.5000,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S030094402400585X/pdfft?md5=2139bda2fad4c228248e90b433c03fd4&pid=1-s2.0-S030094402400585X-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in Organic Coatings","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S030094402400585X","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
Wood is becoming increasingly popular again due to an increased environmental awareness. However, wood generally needs protection from a number of external influences such as moisture, UV, stains, and also fire. The latter is a particular challenge for building materials because once ignited, untreated wood usually burns down completely without the need for a continuous external heat supply. We have recently developed a sustainable coating based on polymerised chitosan itaconate, which protects wood against moisture, UV, and stains. Free-standing chitosan itaconate films were now found to be non-flammable and do not melt when exposed to fire. Thermogravimetric analyses of these films underscore the importance of polymerisation to increase the thermal stability. When applied to wood surfaces, the coating delays the ignition and the spreading of flames. A single application already reduces the burning rate by one third. With multiple layers of the coating, the samples extinguish as soon as the external flame is removed.
期刊介绍：
The aim of this international journal is to analyse and publicise the progress and current state of knowledge in the field of organic coatings and related materials. The Editors and the Editorial Board members will solicit both review and research papers from academic and industrial scientists who are actively engaged in research and development or, in the case of review papers, have extensive experience in the subject to be reviewed. Unsolicited manuscripts will be accepted if they meet the journal''s requirements. The journal publishes papers dealing with such subjects as:
• Chemical, physical and technological properties of organic coatings and related materials
• Problems and methods of preparation, manufacture and application of these materials
• Performance, testing and analysis.
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