玄武岩纤维与植物纤维混抄制备吸音阻燃纸的研究

Preparation and Properties of Sound-Absorbing and Flame-Retardant Paper Composites

关键词:  吸音阻燃纸  玄武岩纤维  植物纤维  吸音性能  阻燃性能

Key Words:sound-absorbing and flame-retardant paper  basalt fiber  plant fiber  sound-absorbing performance  flame retardant performance

摘要:以玄武岩纤维、针叶木纤维为原料，通过湿法成形、浸渍黏结剂和阻燃剂，制备吸音阻燃纸。探究了矿物纤维分散性、湿纸干度、黏结剂和阻燃剂用量等因素对吸音阻燃纸性能的影响。结果表明，当分散剂用量为0.006%时，玄武岩纤维分散性能达到最佳；吸音阻燃纸的最佳制备条件为：针叶木纤维与玄武岩纤维配比7∶3，湿纸干度30%，浸渍时间30 s，干燥温度140℃，含胶量14.9%，阻燃剂含量11.63%。在此条件下，定量60 g/m²的吸音阻燃纸的抗张强度为1.03 kN/m，孔隙率为75.6%，炭化长度为43 mm，阻燃效果达到GB/T 14656‒2009中的1级阻燃标准，吸音系数最高可达0.84。

Abstract:Sound-absorbing and flame-retardant paper was prepared from basalt fiber and softwood fiber by wet process and impregnating with binder and flame retardant. The effects of basalt fiber dispersion, moisture content of wet paper, binder and flame retardant dosage on the properties of sound-absorbing and flame-retardant paper were studied. It was found that the dispersity of basalt fibers was the best when the dosage of dispersant was 0.006%. The optimal prepartion conditions were as follows: the ratio of softwood fiber to basalt fiber was 7∶3,the wet paper dryness 30%， the impregnation time of 30 s, the drying temperature of 140℃, the contents of binder and flame retardant in sound-absorbing and flame-retardant paper were 14.9% and 11.63%, respectively. The basis weight of the paper under the optimal conditions was 60 g/m², the tensile strength was 1.03 kN/m,porosity was 75.6%, and carbonization length was 43 mm, the flame retardant effect reached level 1 of the flame retardant standard, and the highest sound absorption coefficient could reach up to 0.84.