硅溶胶改性的绿色环保室内吸声材料制备与性能研究  

Research on the preparation and performance of silica sol-modified green and environmentally friendly degradable indoor sound-absorbing materials

作　　者：黄天奕 赵莹[2] HUANG Tianyi;ZHAO Ying(Weinan Vocational and Technical College,Weinan 714000,Shaanxi China;Shaanxi Vocational and Technical College of Finance and Economics,Xianyang 712099,Shaanxi China)

机构地区：[1]渭南职业技术学院,陕西渭南714000 [2]陕西财经职业技术学院,陕西咸阳712099

出　　处：《粘接》2024年第9期98-101,共4页Adhesion

摘　　要：为同时达到缓解噪音污染和环境污染的目的,利用针叶木纤维、硅溶胶、苯丙乳液、十二烷基苯磺酸钠、发泡浆料等原材料制备了一种室内绿色环保可降解吸声材料,并对材料的吸声性能进行了研究。结果表明,利用硅溶胶对吸声材料进行改性,可显著提升材料的力学性能和吸声性能,当硅溶胶掺量为8%时,可达到材料孔隙结构和吸声效果的最优平衡;增大植物纤维密度和厚度,可以提升材料在中低频率下的吸声系数,但对于中高频率的吸声性能提升效果并不显著;Delany-Bazley模型能够较为准确地预测不同流阻率植物纤维基吸声材料的吸声系数,预测值与试验数据平均误差仅为1.8%。In order to alleviate noise pollution and environmental pollution at the same time,a kind of indoor green and environmentally friendly degradable sound absorption material was prepared using coniferous wood fiber,silica sol,styrene acrylic lotion,sodium dodecyl benzene sulfonate,foaming slurry and other raw materials,and the sound absorption performance of the material was studied.The results showed that using silica sol to modify sound absorbing materials significantly improved the mechanical properties and sound absorption properties of the materials.When the amount of silica sol was 8%,the optimal balance between the pore structure and sound absorption effect of the materials was achieved.Increasing the density and thickness of plant fibers improved the sound absorption coefficient of the material at medium and low frequencies,but the improvement of sound absorption performance at medium and high frequencies was not significant.The Delany-Bazley model could accurately predict the sound absorption coefficient of plant fiber based sound absorbing materials with different flow resistance rates,with an average error of only 1.8%between the predicted value and the experimental data.

关 键 词：绿色环保 可降解吸声材料 吸声系数 频率 Delany-Bazley模型 

分 类 号：TQ430.771[化学工程]