摘要
改性二氧化钛(TiO_2)纳米颗粒通过在线和离线法分别负载到聚丙烯熔喷和聚乙烯/聚酯皮芯型双组分纺黏非织造材料上,再将两种材料复合后可制备成高效抗菌的室内空气过滤材料。借助扫描电子显微镜和X射线衍射仪来表征其微观形貌和组成成分,并利用自动滤料仪、电子织物强力仪以及振荡法分别测试复合滤材的滤效和压降、力学性能以及抗菌性能。结果表明:改性TiO_2纳米颗粒被成功沉积在纤维表面,且不同TiO_2负载量会对纤维的形貌产生影响;复合滤材的纺黏层在强力拉伸中起主要作用;当纺黏材料和熔喷材料的TiO_2负载质量分数分别为20%和15%时,复合滤材的综合空气过滤性能较好,其在紫外光照条件下对大肠杆菌(E.Coli)和金黄色葡萄球菌(S.aureus)的抑菌率高达99.07%和99.27%。
Modified titanium dioxide(TiO2)nano-particles were loaded to polypropylene melt-blown nonwovens and polyethylene/polyester sheath-core bicomponent spun-bonded nonwovens via online and offline method.Then the two materials were combined to fabricate an indoor air filter with high filtering efficiency and antibacterial activity.The morphologics and compositions of the composite filter were analyzed by scanning electron microscopy(SEM)and X-ray diffraction(XRD).Filtration performance,mechanical properties and antibacterial properties of the composite filter were investigated by automatic filter instrument,electronic fabrics strength machine and shake flask method respectively.The results show that TiO2 nano-particles are successfully deposited on the fiber surface,and fiber morphology is influenced by the mass fraction of TiO2.The spun-bonded layers of compound filter material plays a main role in tensile strength.When the mass fraction of TiO2 in spun-bonded material and melt-blown material is 20% and 15% respectively,the comprehensive air filtration performance of the composite filter is better,and antibacterial rate against E.Coli and S.aureus reaches 99.07% and 99.27% respectively under the condition of UV light.
作者
朱孝明
代子荐
赵奕
徐合
柯勤飞
ZHU Xiaoming;DAI Zijian;ZHAO Yi;XU He;KE Qinfei(Key Laboratory of Textile Science & Technology, Ministry of Education, Donghua University , Shanghai 201620,China;Engineering Research Center of Technical Textiles, Ministry of Education, Donghua University , Shanghai 201620,China;Collegeof Life and Environmental Science, Shanghai Normal University, Shanghai 200234,China)
出处
《东华大学学报（自然科学版）》
CAS
北大核心
2019年第2期196-203,共8页
Journal of Donghua University(Natural Science)
基金
中央高校基本科研业务费专项资金资助项目(CUSF-DH-D-2017020)
关键词
改性二氧化钛
纺黏-熔喷非织造
抗菌
复合滤材
modified TiO2
spun-bonded and melt-blown nonwoven
antibacterial
composite filter material
