纺织高校基础科学学报2023，Vol.36Issue(6)：15-21,7.DOI:10.13338/j.issn.1006-8341.2023.06.003
机织间隔织物增强聚氨酯泡沫复合材料的吸声性能
Sound absorption performance of woven spacer fabric reinforced polyurethane foam composites
摘要
Abstract
In order to further improve the sound absorption performance of woven spacer fabric reinforced polyurethane foam composites,bamboo powder with different mass fractions was added into spacer fabric reinforced polyurethane foam to test the sound absorption performance.The effects of cavity thickness,perforation rate and their combination on the sound absorption per-formance of the composite were studied.The results show that the sound absorption performance is the best when 0.5％bamboo powder is added into the composite;The larger the cavity thick-ness is,the more the sound absorption peak moves to the low frequency direction,and the narro-wer the sound absorption frequency band is;The larger the perforation rate is,the larger the peak value of sound absorption is.The peak value of sound absorption moves to the high frequency direction as a whole with the increase of perforation rate,and the sound absorption frequency band becomes wider and wider;The sound absorption effect of the combination of perforation and cavity can combine the advantages of both.The larger the perforation rate,the smaller the cavity required to reach the absorption peak,and the larger the cavity thickness,the smaller the perfo-ration rate required.关键词
机织间隔织物/聚氨酯泡沫/竹粉/复合材料/吸声性能Key words
woven spacer fabric/polyurethane foam/bamboo powder/compound material/sound absorption performance分类
轻工纺织引用本文复制引用
李佳楠,姜亚明,李嘉乐,杨晨..机织间隔织物增强聚氨酯泡沫复合材料的吸声性能[J].纺织高校基础科学学报,2023,36(6):15-21,7.基金项目
中国国家留学基金(202008120134) （202008120134）
天津市自然科学基金重点项目(18JCZDIC10020) （18JCZDIC10020）
