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Preparation of Organic-Inorganic Phosphorus-Nitrogen-Based Flame Retardants and Their Application to Plywood

التفاصيل البيبلوغرافية
العنوان: Preparation of Organic-Inorganic Phosphorus-Nitrogen-Based Flame Retardants and Their Application to Plywood
المؤلفون: Chao Deng, Yu Ji, Meng Zhu, Yuqing Liang, Hao Jian, Zhichun Yan, Mingyu Wen, Heejun Park
المصدر: Polymers, Vol 15, Iss 14, p 3112 (2023)
بيانات النشر: MDPI AG, 2023.
سنة النشر: 2023
المجموعة: LCC:Organic chemistry
مصطلحات موضوعية: synergistic effect, flame-retardant plywood, phosphorus-nitrogen flame retardants, laminated double hydroxide, Organic chemistry, QD241-441
الوصف: The combustibility of wood can be improved by physical and chemical means, thus expanding the use of wood products. In this study, two novel phosphorus-nitrogen flame retardants (UCPR and MCPR) were developed, and the intercalated modified layered double hydroxides (LDH) thereof were designated as UCPR-LDH and MCPR-LDH. By impregnating poplar veneer with UCPR-LDH and MCPR-LDH solutions, the study investigated the effects of different concentrations (1%, 5%, 10%), processes (vacuum-pressure impregnation, room temperature impregnation, normal-pressure impregnation), and impregnation times (2 h, 3 h, 24 h, 48 h) on the weight-gain rate of veneer. The optimal process was then selected for preparing formaldehyde-free three-layer plywood. Nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) were used to characterize the UCPR and MCPR. Meanwhile, gel-permeation chromatography (GPC) demonstrated that the molecular weight of the synthesized flame retardants increased as their molecular distribution became more uniform. The impregnation process was performed at normal temperature and pressure for 48 h at a 5% flame retardant concentration. Results from cone calorimetry indicate that the UCPR-LDH plywood exhibits a peak heat release rate that is 30.43% lower than that of the control group, demonstrating superior thermal barrier performance. The smoke emission of the MCPR-LDH plywood was reduced by 33.62% compared to the control group, indicating superior smoke suppression performance. This method presents a viable approach for synthesizing organic-inorganic flame retardants.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 15143112
2073-4360
Relation: https://www.mdpi.com/2073-4360/15/14/3112; https://doaj.org/toc/2073-4360
DOI: 10.3390/polym15143112
URL الوصول: https://doaj.org/article/775149009c3d43b59a5dd778ef28542b
رقم الأكسشن: edsdoj.775149009c3d43b59a5dd778ef28542b
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:15143112
20734360
DOI:10.3390/polym15143112