甲基膦酸二甲酯与环氧丙烷和马来酸酐双步化学改性提高辐射松阻燃性

IF 1.3 Q2 MATERIALS SCIENCE, PAPER & WOOD
Sanjeet Kumar Hom, Sauradipta Ganguly, Ajmal Samani, S. Tripathi
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引用次数: 5

摘要

木材易受火灾影响,限制了其作为建筑材料的应用。以环氧丙烷和马来酸酐为原料,研究膦酸二甲酯对辐射松进行双步化学改性的效果。用环氧丙烷(PO)或马来酸酐(MA)对木材进行单步改性,两步改性先用膦酸二甲酯(DMMP)加压处理,再用环氧丙烷(PD)或马来酸酐(MD)进行化学改性。采用热重分析(TGA)和导数热重分析(DTG)对其热性能进行了研究。化学改性后木材的热稳定性优于对照木材。PD的阻燃性能最好,在367℃时失重最大,残余质量为18.2%。初步研究表明,双步改性改善了炭的热性能,提高了最大失重温度和残余炭质量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Improvement in fire retardancy with double-step chemical modification on Pinus radiata D. Don using dimethyl methylphosphonate with propylene oxide and maleic anhydride
ABSTRACT Wood is prone to fire attack making its application restricted as building material. The current study aims to evaluate the effect of double step chemical modification on Pinus radiata using Dimethyl Methyl phosphonate with Propylene oxide and Maleic anhydride. Wood samples were modified by single step using Propylene oxide (PO) or Maleic anhydride (MA) and the double-step modification comprised firstly of pressure treatment with Dimethyl Methyl phosphonate (DMMP) followed by chemical modification using Propylene oxide (PD) or Maleic anhydride (MD). Thermal property was studied using Thermo Gravimetric Analysis (TGA) and Derivative Thermogravimetric (DTG). The chemical modification resulted in better thermal stability of wood than control wood. Among treatments PD showed best fire retardancy property with maximum weight loss at 367°C with 18.2% residual mass. The preliminary study indicates that double step modification improved the thermal property increasing the temperature for maximum weight loss and residual mass comprising of char.
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来源期刊
International Wood Products Journal
International Wood Products Journal MATERIALS SCIENCE, PAPER & WOOD-
CiteScore
2.40
自引率
0.00%
发文量
27
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