Abstract
In this paper, the ultraviolet (UV) absorbers and pigment yellow were added into the plasticised poly (vinyl chloride) (PVC) films for the purpose of improving the UV and high-energy visible light (HEV) shielding performance. The optical properties were investigated by a Ultraviolet-visible-near-infrared (UVPC) spectrophotometer and a transmission & haze meter. It was found that all the samples exhibited high transmittance and low haze. UV326 was more effective than UV531 as an UV absorber. Pigment yellow played a positive role in the optical properties. By a simple combination of 0.5 phr UV326 and 6 × 10−3 phr pigment yellow, more than 80% optical transparency in the visible light range (400–800 nm) and 90% shielding efficiency of UV light (from 200 to 400 nm) were realised. Furthermore, the presence of pigment yellow in PVC matrix could effectively block HEV, and the average transmittance of HEV decreased with the increasing pigment yellow concentration.
| Original language | English |
|---|---|
| Pages (from-to) | 375-380 |
| Number of pages | 6 |
| Journal | Plastics, Rubber and Composites |
| Volume | 46 |
| Issue number | 9 |
| DOIs | |
| State | Published - 21 Oct 2017 |
Keywords
- Plasticised PVC
- UV shielding
- pigment
- transparent film