Assessment of UV-permeability in nano-ZnO filled coatings via high throughput experimentation

被引：75

作者：

Lowry, Michael S. ^{[1
]}

Hubble, David R. ^{[1
]}

Wressell, Amy L. ^{[1
]}

Vratsanos, Menas S. ^{[1
]}

Pepe, Frank R. ^{[1
]}

Hegedus, Charles R. ^{[1
]}

机构：

[1] Air Prod & Chem Inc, Allentown, PA 18195 USA

来源：

JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH | 2008年 / 5卷 / 02期

关键词：

nano-ZnO; ZnO; polyurethane; acrylic coatings; UV permeability; UV transmission; Beer-Lambert's Law; Beer's law; high throughput experimentation;

D O I：

10.1007/s11998-007-9064-6

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The degree of UV protection afforded by nano- ZnO in a polyurethane/ acrylic clear topcoat was investigated. The influence of nano- ZnO concentration and dry film thickness on the optical properties ( e. g., UV permeability and visible transmittance) of the coating was probed using a library of 28 samples that were prepared by high throughput techniques. A model for predicting the UV permeability of nano-ZnO filled coatings was developed and the nano- ZnO loading condition required to block > 99% UV radiation was determined to be 2.0 g/m(2). This model can be used to assist in the development of coatings and other polymeric systems embedded with nano- ZnO to protect the coating and underlying materials ( i. e., substrate) from UV degradation.

引用

页码：233 / 239

页数：7

共 18 条

[1] Validation of the reciprocity law for coating photodegradation [J].