赤泥改性磷酸铝木材胶黏剂的制备与阻燃性能研究
Preparation and flame-retardant properties of red mud-modified aluminum phosphate wood adhesive
木材为可再生生物基材料,其易燃性存在严重火灾隐患。针对环保型木材胶黏剂的需求与缓解铝工业固废赤泥(RM)堆存压力,采用水热法将氢氧化铝[Al(OH)3]与磷酸(H3PO4)合成了磷酸铝胶黏剂(ALPO),通过将不同掺量的RM引入磷酸铝胶黏剂体系,制备胶合板,运用多尺度表征手段,对赤泥磷酸铝胶黏剂(RMALPO)胶合板体系进行研究。胶黏剂在3%的RM掺量下有效提升胶合强度;热重分析表明,胶合板残余质量比纯木纤维高出44.97%,表明RMALPO木材体系的热稳定性增强。
Wood is a renewable bio-based material,but its flammability poses a serious fire hazard.To address the demand for environmentally friendly wood adhesives and alleviate the storage pressure of red mud (RM),a solid waste from the aluminum industry,aluminum phosphate adhesive (ALPO) was synthesized via a hydrothermal method using aluminum hydroxide [Al(OH)3] and phosphoric acid (H3PO4).Plywood was prepared by incorporating different amounts of RM into the ALPO adhesive system.The red mud-modified aluminum phosphate adhesive (RMALPO) plywood system was studied using multi-scale characterization techniques.The adhesive effectively improved the bonding strength at an RM content of 3%.Thermogravimetric analysis showed that the residual weight of the plywood was 44.97% higher than that of pure wood fiber,indicating enhanced thermal stability of the RMALPO wood system.
硅酸盐 / 木质胶水 / 无机胶水 / 胶合机理 / 固体废物
silicate / wood adhesive / inorganic adhesive / bonding mechanism / solid waste
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赤泥铁资源制备电池级磷酸铁关键技术研究与示范(桂科AB24010018)
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