Application of Nanometer Material in Ultraviolet Prevention Thin Film

摘要

To mankind, ultraviolet ray from the sun is harmful and beneficial. But, in daily life, a lot of occasions, we hope to block the ultraviolet ray. Some people studied the nanometer particles which can block Ultraviolet ray. In this paper, the protection performance of nanometer particles, prapared by sol-gel method, added into polypropylene sour to ultraviolet has been studied. In order to improve the ultraviolet blocking of the thin film, more than one kind of nanometer particles are added into the polypropylene sour, the protection performance of the thin film is strengthened. When the ratio of the volume of 2% nanometer Al2O3 sol to the volume of 3% nanometer Fe2O3 sol is 1:3, the shielding effect on the ultraviolet including UVC, UVB and UVA band is significant. When the ratio of the volume of 2% nanometer Al2O3 sol to the volume of 2% nanometer Y2O3 sol is 1:3, the shielding effect on the UVC is the best. When the ratio of the volume of 2% nanometer Al2O3 sol to the volume of 1% nanometer ZnO sol is 1:2, the shielding effect on the UVC is the best. When the ratio of the volume of 3% nanometer Fe2O3 sol to the volume of 1% nanometer ZnO sol is 1:1, the shielding effect on the UVC is the best. To UVB and UVA, the shielding effect of 3% nanometer Fe2O3 single component is the best. When the ratio of the volume of 3% nanometer Fe2O3 sol to the volume of 2% nanometer Y2O3 sol is 1:2, the shielding effect on the UVC is the best. To UVB and UVA, the shielding effect of 3% nanometer Fe2O3 single component is the best.When the ratio of the volume of 1% nanometer ZnO sol to the volume of 2% nanometer Y2O3 sol is 1:2, the shielding effect on the ultraviolet including UVC, UVB and UVA band is significant.