多孔吸音阻燃竹纤维素气凝胶的制备及性能研究  

Preparation and Properties Research of Porous Sound-absorbing and Flame-retardant Bamboo Cellulose Aerogel

作　　者：闫加桐 刘黎[2] 郭荣辉[1] YANJia-tong;LIU Li;GUO Rong-hui(College of Biomass Science and Engineering,Sichuan University,Chengdu 610065;College of Chemistry,Sichuan University,Chengdu 610065)

机构地区：[1]四川大学轻工科学与工程学院,四川成都610065 [2]四川大学化学学院,四川成都610065

出　　处：《纺织科学与工程学报》2024年第3期75-79,共5页Journal of Textile Science & Engineering

基　　金：成都市科技计划项目(2022-YF05-00411-SN);四川省科技计划项目(2023YFQ0083)。

摘　　要：近年来,噪音污染的增加已成为公众关注的问题,使用多孔吸音材料是减少噪音污染的一种便捷方法。通过溶胶凝胶法、原位生长法和冷冻干燥法成功合成了多孔竹纤维素/硼酸锌(BC/ZB)气凝胶。BC/ZB气凝胶的密度仅为0.0392 g/cm^(3),在800 Hz~6300 Hz范围内平均吸音系数为0.70,BC/ZB气凝胶的极限氧指数(LOI)值为33.2%。BC/ZB复合气凝胶具有轻质、吸音及阻燃等优点,在吸音及阻燃领域具有潜在的应用前景。In recent years,the increase of noise pollution has become a public concern.The use of porous sound-absorbing materials is a convenient method to decrease noise pollution.In this paper,porous bamboo cellulose/zinc borate(BC/ZB) aerogel was successfully synthesized by sol-gel method,in-situ growth method and freeze-drying method.The density of BC/ZB aerogel was only 0.0392 g/cm^(3),the average sound absorption coefficient was 0.70 in the range of 800~6300 Hz,and the limiting oxygen index(LOI) value was 33.2%.BC/ZB composite aerogel exhibits the advantages of light weight,sound absorption and flame retardancy,showing potential application prospects in the field of sound absorption and flame retardancy.

关 键 词：竹纤维素 气凝胶 多孔 吸音 阻燃 

分 类 号：TQ426[化学工程] TQ427.26[一般工业技术—材料科学与工程] TB34