Abstract

The exposure to ultraviolet radiation (UVR) can contribute to pigmentation, erythemas, early aging, and skin cancer. The purpose of this paper was to fabricate the polyacrylonitrile (PAN) nanofibers associated with the ultraviolet protection property using various concentrations of MWCNT and TiO₂ nanoparticles. The nanofibers were fabricated by the electrospinning technique. The electrospinning nanofibers were characterized by SEM microscopy and FTIR spectrophotometer. The UV protection property of membranes was studied by UV transmittance measurement and UV protection factor (UPF) calculation. The FTIR study of nanofibers showed the successful fabrication of PAN/MWCNT, PAN/TiO₂, and PAN/MWCNT/TiO₂ nanocomposites. According to SEM images, nanoparticle concentration influences the nanofiber diameter. The results showed that the load of nanoparticles increases UV protection compared to pure PAN nanofibers, in which the MWCNT-coated webs have better performance than TiO₂ coated samples. However, the PAN/MWCNT/TiO₂ composites provide the best protection and are classified as excellent protection at all concentrations.

摘要

暴露于紫外线（UVR）可能会导致色素沉着，红斑，早期衰老和皮肤癌。本文的目的是使用各种浓度的MWCNT和TiO ₂纳米粒子来制造与紫外线防护性能相关的聚丙烯腈（PAN）纳米纤维。纳米纤维是通过静电纺丝技术制备的。通过SEM显微镜和FTIR分光光度计对静电纺丝纳米纤维进行了表征。通过紫外透射率的测量和紫外保护因子（UPF）的计算研究了膜的紫外保护性能。纳米纤维的FTIR研究表明成功制备了PAN / MWCNT，PAN / TiO ₂和PAN / MWCNT / TiO ₂纳米复合材料。根据SEM图像，纳米粒子的浓度会影响纳米纤维的直径。结果表明，与纯PAN纳米纤维相比，纳米颗粒的负载增强了紫外线防护，其中MWCNT涂覆的纤维网的性能优于TiO ₂涂覆的样品。然而，PAN / MWCNT / TiO ₂复合材料提供了最佳的保护作用，并且在所有浓度下均被归类为优异的保护作用。