Characterization of antireflective coatings on poly(methyl methacrylate) substrate by different process parameters

Autor: Yuan-Shun Zhang, Wei-Ming Chiu, Peir-An Tsai, Jyh-Horng Wu
Rok vydání: 2013
Předmět:
Zdroj: Journal of Applied Polymer Science. 129:2411-2417
ISSN: 0021-8995
DOI: 10.1002/app.38975
Popis: The high/low refractive index organic/inorganic antireflective (AR) hybrid polymers were formed using the sol–gel process, in which TiO2/2-hydroxyethyl methacrylate (2-HEMA) (high refractive index hybrid polymer) and SiO2/2-HEMA (low refractive index hybrid polymer) two-layer thin films were formed on a hard coating deposited poly(methyl methacrylate) (HC-PMMA) substrate by both spin coating and dip coating. The relationship between the process parameters and the optical properties, thickness, porosity, surface morphology, and adhesion was determined. The results show that the reflectance of the two-layer thin films on HC-PMMA substrate is less than 0.21% (λ = 550 nm), with good adhesion (5B) and a hardness of up to 4H. In addition, the thickness, porosity, and roughness of the films affect refractive index and the antireflection properties of the AR two-layered thin film. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
Databáze: OpenAIRE