Ali Dorieh, Farideh Pahlavan, Kateřina Hájková, Štěpán Hýsek, Mohammad Farajollah Pour, Elham H. Fini
{"title":"推进可持续建筑材料:用木质素纳米颗粒降低中密度纤维板的甲醛释放量","authors":"Ali Dorieh, Farideh Pahlavan, Kateřina Hájková, Štěpán Hýsek, Mohammad Farajollah Pour, Elham H. Fini","doi":"10.1002/adsu.202400102","DOIUrl":null,"url":null,"abstract":"<p>The pressing need to develop eco-friendly polymer materials for building applications has led to increased interest in modifying existing polymer systems. In this study, a sustainable approach to augmenting urea-formaldehyde (UF) resins, widely employed in wood-based panels is introduced. Addressing this, formaldehyde-scavenger demethylated lignin nanoparticles into UF resins, aiming to produce a green and enhanced medium-density-fiberboard (MDF) with minimal formaldehyde emissions is incorporated. The results indicate that increasing concentrations of demethylated lignin nanoparticles in the UF adhesive, there is not only a reduction in formaldehyde emissions from MDF composites but also a significant decrease in thickness swelling. The highest reduction in formaldehyde emission is observed in the MDF composite prepared with UF resin containing 7% lignin nanoparticles (UF-7NL), with an emission of 2.9 mg/100 g, marking a substantial decrease of 74% compared to emission of 11.2 mg/100 g from neat resin. Importantly, this reduction does not compromise physical and mechanical properties of the MDF; they remain comparable to boards bonded with unmodified UF. Molecular modeling revealed that lignin effectively traps formaldehyde, incorporating it as -CH<sub>2</sub>OH groups, leading to a notable decrease in formaldehyde emission from MDF. This approach offers an eco-friendly modification to a common polymer, showcasing lignin nanoparticles as innovative additives. </p>","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"8 9","pages":""},"PeriodicalIF":6.5000,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Advancing Sustainable Building Materials: Reducing Formaldehyde Emissions in Medium Density Fiber Boards with Lignin Nanoparticles\",\"authors\":\"Ali Dorieh, Farideh Pahlavan, Kateřina Hájková, Štěpán Hýsek, Mohammad Farajollah Pour, Elham H. Fini\",\"doi\":\"10.1002/adsu.202400102\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The pressing need to develop eco-friendly polymer materials for building applications has led to increased interest in modifying existing polymer systems. In this study, a sustainable approach to augmenting urea-formaldehyde (UF) resins, widely employed in wood-based panels is introduced. Addressing this, formaldehyde-scavenger demethylated lignin nanoparticles into UF resins, aiming to produce a green and enhanced medium-density-fiberboard (MDF) with minimal formaldehyde emissions is incorporated. The results indicate that increasing concentrations of demethylated lignin nanoparticles in the UF adhesive, there is not only a reduction in formaldehyde emissions from MDF composites but also a significant decrease in thickness swelling. The highest reduction in formaldehyde emission is observed in the MDF composite prepared with UF resin containing 7% lignin nanoparticles (UF-7NL), with an emission of 2.9 mg/100 g, marking a substantial decrease of 74% compared to emission of 11.2 mg/100 g from neat resin. Importantly, this reduction does not compromise physical and mechanical properties of the MDF; they remain comparable to boards bonded with unmodified UF. Molecular modeling revealed that lignin effectively traps formaldehyde, incorporating it as -CH<sub>2</sub>OH groups, leading to a notable decrease in formaldehyde emission from MDF. This approach offers an eco-friendly modification to a common polymer, showcasing lignin nanoparticles as innovative additives. </p>\",\"PeriodicalId\":7294,\"journal\":{\"name\":\"Advanced Sustainable Systems\",\"volume\":\"8 9\",\"pages\":\"\"},\"PeriodicalIF\":6.5000,\"publicationDate\":\"2024-07-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advanced Sustainable Systems\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/adsu.202400102\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Sustainable Systems","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/adsu.202400102","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY","Score":null,"Total":0}
Advancing Sustainable Building Materials: Reducing Formaldehyde Emissions in Medium Density Fiber Boards with Lignin Nanoparticles
The pressing need to develop eco-friendly polymer materials for building applications has led to increased interest in modifying existing polymer systems. In this study, a sustainable approach to augmenting urea-formaldehyde (UF) resins, widely employed in wood-based panels is introduced. Addressing this, formaldehyde-scavenger demethylated lignin nanoparticles into UF resins, aiming to produce a green and enhanced medium-density-fiberboard (MDF) with minimal formaldehyde emissions is incorporated. The results indicate that increasing concentrations of demethylated lignin nanoparticles in the UF adhesive, there is not only a reduction in formaldehyde emissions from MDF composites but also a significant decrease in thickness swelling. The highest reduction in formaldehyde emission is observed in the MDF composite prepared with UF resin containing 7% lignin nanoparticles (UF-7NL), with an emission of 2.9 mg/100 g, marking a substantial decrease of 74% compared to emission of 11.2 mg/100 g from neat resin. Importantly, this reduction does not compromise physical and mechanical properties of the MDF; they remain comparable to boards bonded with unmodified UF. Molecular modeling revealed that lignin effectively traps formaldehyde, incorporating it as -CH2OH groups, leading to a notable decrease in formaldehyde emission from MDF. This approach offers an eco-friendly modification to a common polymer, showcasing lignin nanoparticles as innovative additives.
期刊介绍:
Advanced Sustainable Systems, a part of the esteemed Advanced portfolio, serves as an interdisciplinary sustainability science journal. It focuses on impactful research in the advancement of sustainable, efficient, and less wasteful systems and technologies. Aligned with the UN's Sustainable Development Goals, the journal bridges knowledge gaps between fundamental research, implementation, and policy-making. Covering diverse topics such as climate change, food sustainability, environmental science, renewable energy, water, urban development, and socio-economic challenges, it contributes to the understanding and promotion of sustainable systems.