纳米二氧化硅改性吸声针织物制备及性能  

Preparation of nano-silica modified sound-absorbing knitted fabric and its properties

作　　者：和晋宇 丁照轩 李欣欣 覃小红[1] HE Jinyu;DING Zhaoxuan;LI Xinxin;QIN Xiaohong(College of Textiles,Donghua University,Shanghai 201620,China)

机构地区：[1]东华大学纺织学院,上海201620

出　　处：《上海纺织科技》2024年第4期29-33,共5页Shanghai Textile Science & Technology

基　　金：国家自然科学基金(61902357);中央高校基本科研业务费专项资金资助(2232020D-12)。

摘　　要：为探究组织结构和纳米二氧化硅(nano-silica)质量分数对吸声针织物性能的影响,利用棉/腈纶90/10混纺纱线编织双罗纹针织物和双罗纹空气层针织物。制备质量分数为1.0%、1.5%和2.0%的纳米二氧化硅涂层剂,对两种针织物进行涂层处理,测试其吸声、透气、抗撕裂等性能。结果表明:nano-silica涂层可显著提高针织物在高频段(2000 Hz以上)的吸声性能,吸声性能与二氧化硅涂层质量分数和针织物面密度成正相关,涂层工艺不影响纬编针织物的撕裂强度,但会降低织物的透气性能。In order to investigate the effect of structure and nano-silica coating concentration on the performance of sound-absorbing knitted fabrics,90%cotton/10%acrylic blended yarn is used to prepare interlock and Puntodi Roma fabrics followed by coating with nano-silica agents of 1.0%,1.5%,and 2.0%respectively.The basic mechanical properties and sound absorption properties of fabric samples aretested.The results show that nano-silica coating can significantly improve the acoustic performance of knitted fabrics in the high frequency(above 2000 Hz).The acoustic performance is positively correlated with the concentration of nano-silica coating and the surface density of the interlock fabric,the nano-silica coating does not affect the tear strength of the fabric but reduces the breathability of the fabric.

关 键 词：针织物 双罗纹 双罗纹空气层 吸声 纳米二氧化硅 涂层整理 

分 类 号：TS195.29[轻工技术与工程—纺织化学与染整工程]