基于纳米粉体的织物抗紫外线研究

通过纳米粉体反射光谱和纳米树脂薄膜紫外线透过率的测试，筛选出的纳米粉体．应用到棉织物上，使得织物抗紫外线性能符合抗紫外线标准要求．研究结果表明，丙烯酸树脂对UVA波段吸收较强；二甲苯含量对紫外线透过率有一定影响；对于相同厚度的膜，二甲苯比例越大，紫外线透过性能越好．随着纳米粉体含量增加，纳米膜抗紫外线效果会增强．对于ZnO、TiO2纳米粉体，波长320nm的紫外线透过率与纳米粉体含量呈负指数关系，当添加量达到4％以后，棉织物的紫外线透过率在0．5％以下。

Study on the characteristics of anti-ultraviolet of cotton fabric coated with the nano-powder

The reflectivity of nano-powder and the permeability of nano-membrane at the ultraviolet wave band are tested. The cotton fabric is treated with adhesives contained zinc oxide or titanium dioxide nano-powder, and the ability of anti-ultraviolet can meet the practical requirements. The result show that acrylic acid resin has more absorption at the UVA band than others. As the same thick membrane, the more the dimethylbenzene contains, the better the property of anti-ultraviolet. The effect of anti-ultraviolet is getting better with the increase of nano-powder. The ultraviolet permeability has inversed correlation with the amount of nano-powder at 320nm wave band for zinc oxide or titanium dioxide nano-powder. When the zinc oxide or titanium dioxide is added to 4%, the permeability is less than 0.4%.