ABSTRACT

This paper aims to fabricate a type of transparent film to protect human activity and health against ultraviolet (UV) light and high-energy visible (HEV) light. UV326, UV531 and pigment yellow 14 (PY14) were embedded into ethylene-vinyl acetate copolymer (EVA) as UV absorbers and HEV absorbers, respectively. The optical characteristics of EVA blends were primarily explored using Ultraviolet-visible-near-infrared spectrophotometer (UV-Vis-NIR), Luminous transmittance and Haze meter, Fourier transform infrared spectrometer. Meanwhile, the heat insulation performance was tested indoor with a solar simulator and outdoor under actual sunlight irradiation. The results of UV-Vis-NIR revealed the EVA film containing UV326 (0.5 phr) and PY14 (0.01 phr) performed ~100% UV-blocking and HEV light shielding of 42.0%. Simultaneously, this film retained visible light transmission of over 73.9% and performed a ~5 °C decrease compared with pure EVA film in the heat insulation performance test, suggesting a certain heat insulation property without ambient interference.

摘要

本文旨在制造一种透明薄膜，以保护人类活动和健康免受紫外线 (UV) 光和高能可见光 (HEV) 光的伤害。将 UV326、UV531 和颜料黄 14 (PY14) 嵌入乙烯-醋酸乙烯酯共聚物 (EVA) 中，分别作为紫外线吸收剂和 HEV 吸收剂。主要利用紫外-可见-近红外分光光度计（UV-Vis-NIR）、透光率和雾度计、傅里叶变换红外光谱仪研究了EVA共混物的光学特性。同时，在室内使用太阳模拟器和室外在实际阳光照射下测试隔热性能。UV-Vis-NIR 的结果表明，含有 UV326（0.5 份）和 PY14（0.01 份）的 EVA 薄膜具有约 100% 的紫外线阻挡和 42.0% 的 HEV 光屏蔽。同时，