表面直接装饰技术.pdf

DirectCoating/DirectSkinning: an innovative process for high- quality decorative surfaces August 2008 DirectCoating/DirectSkinning Structure § Introduction § Process description § Possible materials and applications § Conclusion Business Unit Polycarbonates DirectCoating/DirectSkinning Motivation High demand for valuable part surfaces § Automotive interior parts § Automotive exterior parts § Electro and Electronic industry § IT industry Tailor made solution by BMS § Suitable combination of – proper substrate materials Source: PolytecSource: Polytec ® ® ® (Bayblend , Makroblend , Makrolon ) – and surface materials ®, ® ® (Bayflex Desmophen , Desmodur ) § Valuable part surface appearance with – thin 2C-PUR-coating (hard or soft) – PUR as solid skin – PUR as foamed skin Business Unit Polycarbonates DirectCoating/DirectSkinning Many Reasons for Thermoplastic Coating Combination of unique properties – Color effects – Optical effects (e.g. 3D-gloss effect) – Surface feel (e.g. soft feel) – Abrasion and scratch resistance – Chemical resistance – UV-protection – Electrical conductivity – ... Need for a competitive coating technology Business Unit Polycarbonates DirectCoating/DirectSkinning Comparison with Standard Coating Standard Coating DirectCoating/DirectSkinning Injection Molding Two-step process Transport (intermediate storage) §Injection of the thermoplastic (Injection Mold