聚丙烯腈/乙烯脲除甲醛纳米纤维膜的制备

Preparation of PAN/ethylene urea nanofibrous membrane for formaldehyde removal

采用静电纺丝技术制备了聚丙烯腈(PAN)/乙烯脲除甲醛纳米纤维薄膜,使用傅里叶红外光谱仪(FTIR)、扫描电子显微镜(SEM)以及X射线衍射仪(XRD)对加入不同乙烯脲含量的纳米纤维薄膜进行了表征,测试了其除甲醛特性。FTIR以及XRD分析表明,乙烯脲和PAN间具有较强的化学相互作用使其互容性较好;SEM结果表明,除甲醛纳米纤维膜表面光滑,没有黏结现象,纤维直径随乙烯脲加入量的增加而减小;除甲醛测试结果表明,PAN/乙烯脲除甲醛纳米纤维膜具有优良的除甲醛性能,乙烯脲含量超过15%后,甲醛去除率可达99%。

Polyacrylonitrile(Pan)/ethylene urea nanofibrous membrane for formaldehyde removal is prepared via electrospinning technology.The nanofiber films with different ethylene urea contents are characterized by fourier transform infrared spectrometer(FTIR),scanning electron microscope(SEM)and X-ray diffraction(XRD).Their formaldehyde removal properties are investigated.FTIR and XRD analysis indicate that there is a strong chemical interactions between ethylene urea and polyacrylonitrile,which results in good mutual compatibilities.SEM results show that the surface of nanofiber film is smooth without adhesion,and the diameter of fiber decreases with the increase of ethylene urea addition.Formaldehyde removal test manifests that PAN/ethylene urea has excellent formaldehyde removal performance.The removal rate of formaldehyde could reach 99%when the content of ethylene urea is more than 15%.