Surface roughness and light transmission of biaxially oriented polypropylene films

Autor:	Eric Baer, Yijian Lin, Peter S. Dias, A. Hiltner, S. P. Chum
Rok vydání:	2007
Předmět:	Polypropylene Light transmission Materials science Polymers and Plastics General Chemistry Compression (physics) chemistry.chemical_compound chemistry Homogeneous Thermal Materials Chemistry Surface roughness Transparency (data compression) Texture (crystalline) Composite material
Zdroj:	Polymer Engineering & Science. 47:1658-1665
ISSN:	1548-2634 0032-3888
Popis:	The effect of thermal history on the transparency of biaxially-oriented polypropylene (BOPP) films was investigated. Compression molded sheets prepared with different cooling rates were biaxially oriented at several temperatures. Correlations were sought between the light transmission measured at 633 nm and the surface roughness as characterized by atomic force microscopy. It was determined that surface roughness on the 100-μm size scale was responsible for a loss in transparency. Surface roughness on the submicron size scale did not affect the transparency. The clearest films were obtained from compression molded sheets with the most homogeneous texture and by orienting at the lowest temperature. POLYM. ENG. SCI., 47:1658–1665, 2007. © 2007 Society of Plastics Engineers
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::035bb79b0671d9a2f2b09cc1a1ea232b https://doi.org/10.1002/pen.20850 Zobrazit plný text záznamu Plný text