多聚磷酸盐作为聚氯乙烯光降解抑制剂。
Polyphosphates as Inhibitors for Poly(vinyl Chloride) Photodegradation.
机构信息
Department of Chemistry, College of Science, Tikrit University, Tikrit 34001, Iraq.
Cornea Research Chair, Department of Optometry, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia.
出版信息
Molecules. 2017 Oct 28;22(11):1849. doi: 10.3390/molecules22111849.
Three polyphosphates were used as inhibitors for poly(vinyl chloride) (PVC) photodegradation. The polyphosphates were added to PVC at a concentration of 0.5% by weight. The PVC films (40 µm thickness) were irradiated at room temperature with ultraviolet (UV) light for up to 300 h. The changes in PVC films after irradiation were monitored by Fourier transform infrared spectroscopy, weight loss, viscosity-average molecular weight determination, and atomic force microscopy. These changes were very noticeable in the blank PVC films compared to the ones obtained when additives were used. The polyphosphates can inhibit the PVC photodegradation through direct absorption of UV light, interactions with PVC chains, and acting as radical scavengers.
三种多聚磷酸盐被用作聚氯乙烯 (PVC) 光降解的抑制剂。多聚磷酸盐以 0.5%的重量浓度添加到 PVC 中。将 PVC 薄膜（40 µm 厚）在室温下用紫外线 (UV) 光照射长达 300 小时。通过傅里叶变换红外光谱、失重、粘均分子量测定和原子力显微镜监测辐照后 PVC 薄膜的变化。与使用添加剂时相比，空白 PVC 薄膜的这些变化非常明显。多聚磷酸盐可以通过直接吸收紫外线、与 PVC 链相互作用和作为自由基清除剂来抑制 PVC 的光降解。
Zotero 插件