Tough films suit portable electronics use
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Sabic Innovative Plastics product story
Edited by the Engineeringtalk editorial team
Mar 3, 2008
Lexan DMX films offer a pencil hardness rating of 1H, easy formability, high impact resistance and fabrication ease for insert mould decoration (IMD) graphics.
Sabic Innovative Plastics has released Lexan DMX polycarbonate (PC) films for portable electronics applications such as mobile phone and laptop covers, palm rests and keypads.
Lexan DMX films offer a pencil hardness rating of 1H, easy formability, high impact resistance and fabrication ease for insert mould decoration (IMD) graphics.
Josh Ayer, Global Film Product Manager for Sabic Innovative Plastics said "With this proprietary technology, portable device and laptop manufacturers can achieve improvements across the board, from gorgeous colours and effects to super toughness, as well as the potential for improved production yields".
Although there are several traditional approaches to producing covers, palm rests and other applications for portable electronics, each has significant drawbacks.
Semicuring a hard coating on PC requires special lighting, limits shelf life and results in lower yields.
Ink transfer onto a PMMA or PC substrate is not suitable for edge wraps and limits formability.
Hard coating polyethylene can result in loss of clarity and significant shrinkage on deep draw applications.
Lexan DMX films can be easily thermoformed to a 35mm draw depth and lend themselves to IMD and printing.
The film also offers salt water and isopropanol resistance, a uniform coefficient of thermal expansion and a low yellowness index There are currently two grades of Lexan DMX film available: Lexan DMX 1HD00-112 film and Lexan DMX 1HDA3-112 film.
Lexan DMX 1HD00-112 film is polished on both sides while Lexan DMX 1HDA3-112 film is polished on one side and matte on the other.
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