摘要
将活性炭、二氧化钛、聚丙烯等原料经物理共混处理,通过熔喷制成活性炭负载二氧化钛改性聚丙烯熔喷无纺布。采用热分析曲线(Differential scanning calorimeter,DSC)、X射线衍射(X-ray diffraction,XRD)、电子织物拉伸机、可见分光光度计等对改性无纺布的微观结构、结晶性能、力学性能、吸附性能进行表征。结果表明:活性炭负载二氧化钛比例为1∶3时活性炭负载二氧化钛的降解率高,二氧化钛分布均匀,依照此比例的活性炭负载二氧化钛与聚丙烯进行熔喷制备无纺布。随活性炭负载二氧化钛的加入量的提高,活性炭负载二氧化钛改性聚丙烯无纺布的吸附性能增强,当活性炭负载二氧化钛的添加量为4%时,吸附性能较好;活性炭负载二氧化钛的添加使无纺布的力学性能出现最大值,且无纺布的结晶度和熔点无明显变化。
Activated carbon/TiO2/polypropylene(PP)non-wovens were prepared by physical blending of activated carbon/TiO2/PP.The microstructure,crystalline properties,mechanical properties and adsorption properties of PP nonwovens were characterized by differential scanning calorimeter(DSC),X-ray diffraction(XRD),electronic fabric stretching machine and visible spectrophotometer.The experimental results show that the degradation rate of TiO2 supported on activated carbon is high and the distribution of TiO2 is uniform when the ratio of activated carbon to titanium dioxide is 1∶3,so the ratio of activated carbon/TiO2 and PP is used to prepare non-woven fabrics by melt spraying.Therefore,the 1∶3 ratio of activated carbon/TiO2 to PP is used to melt-blown the nonwoven fabric.With the increase of the amount of activated carbon/TiO2,the adsorption performance of activated carbon/TiO2/PP non-woven fabrics is enhanced.When the amount of activated carbon loaded titanium dioxide is 4%,the adsorption performance is better;the addition of activated carbon/TiO2 made mechanical properties of the non-woven fabrics reach the maximum value,but it has little effect on the crystallinity and melting point of the non-woven fabrics.
作者
孟庆杰
兰天
李南
迟长龙
孙波
MENG Qingjie;LAN Tian;LI Nan;CHI Changlong;SUN Bo(Aerospace Special Materials and Processing Technology Institute,Beijing,100074,China;Department of Material and Chemical Engineering,Henan University of Engineering,Zhengzhou,450000,China;The Second Military Representative Office of Air Force Equipment Department inBeijing,Beijing,100074,China)
出处
《南京航空航天大学学报》
EI
CAS
CSCD
北大核心
2019年第6期857-863,共7页
Journal of Nanjing University of Aeronautics & Astronautics
关键词
聚丙烯
活性炭
二氧化钛
力学性能
吸附
polypropylene
activated carbon
titanium dioxide
mechanical properties
adsorption
