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探讨BL-阻燃剂用于纸张时的阻燃效果,分析其对纸张各项物理性能和光学性能的影响;并将BL-阻燃剂与无机阻燃剂氢氧化铝复配,研究了两者的协同阻燃效果;对比研究了浆内添加法和双面涂布法两种阻燃处理工艺,筛选出最优阻燃配方。结果表明:BL-阻燃剂浸渍后,随着BL-阻燃剂浓度的增加,纤维阻燃性提高,不透明度基本保持不变,纸张的耐折度下降,抗张指数和撕裂指数先上升后下降,在浓度为8%时达到最大值。用氢氧化铝和BL-阻燃剂复配进行双面涂布,当氢氧化铝含量为溶剂的6%,BL-阻燃剂浓度为溶剂的8%时,纸的碳化长度为5.9cm,接近于国家防焰1级标准,阻燃效果良好。氢氧化铝与BL-阻燃剂两段处理,当氢氧化铝用量10%,BL-阻燃剂浓度为8%时,纸的碳化长度下降到5.0cm,达到了国家防焰1级标准,阻燃效果最佳。
The flame retardant effect of BL-flame retardant on paper was discussed, and its influence on the physical and optical properties of paper was analyzed. BL-flame retardant and aluminum hydroxide, an inorganic flame retardant, The synergistic flame retardant effect was studied. Two kinds of flame retardant treatment technologies were studied, such as the additive method in pulp and the double-coated method, and the optimal flame retardant formula was screened out. The results show that with the increase of concentration of BL-flame retardant, the flame retardancy of fiber increases, the opacity remains unchanged, the folding resistance of paper decreases, the tensile index and tear index Rise and fall, reaching a maximum at 8% concentration. Double coated with aluminum hydroxide and BL-flame retardant compound, carbonized length of 5.9 cm when aluminum hydroxide content is 6% of solvent and BL-flame retardant concentration is 8% of solvent, Close to the national flameproof level 1 standard, flame retardant effect is good. Aluminum hydroxide and BL-flame retardant two-stage treatment, when the amount of aluminum hydroxide 10%, BL-flame retardant concentration of 8%, the paper carbonized length down to 5.0cm, reached a national standard flameproof 1, Flame retardant best.