Method for improving remote fluorescent optical properties of polycarbonate

摘要

The present disclosure relates to compositions and methods for improving remote fluorescent optical properties in polycarbonate. One method comprises combining a phosphor component and a polycarbonate component to form a phosphor-polycarbonate composition; And combining the phosphor-polycarbonate composition with a diffusing agent comprising polytetrafluoroethylene (PTFE), at a fixed phosphor concentration, the diffusing agent diffusing light and the phosphor-polycarbonate The composition exhibits a chromaticity coordinate (CIEx) increase of at least about 5% when compared to a substantially similar reference composition without PTFE, when measured according to CIE 1931 or increased CIE 1976 (u ', v'). In addition to the method of mixing the PCP-PTFE component by mixing the PTFE and the phosphor-polycarbonate (PCP) to increase the yield of the extruded thermoplastic polycarbonate composition and to reduce the product accumulation, (PPCMB) composition and adding PTFE to the PPCMB composition during extrusion to form a PPCMB-PTFE composition.