Panasonic developed a light diffusion polypropylene (PP) resin molding material available with LED lamps

Panasonic announced in April 5, 2016, the development of a complex shape can be processed by the optical diffusion polypropylene (PP) resin molding material "FULL BRIGHT PP", and from April mass production. In addition to injection molding, the material can also be achieved by injection stretch blow molding, can contribute to improve the degree of freedom of design.

"FULL" PP "PP" (BRIGHT) for photo diffusion resin molding material

LED lighting is usually set around the light source to maintain the uniformity of the brightness of the diffusion plate, the diffusion plate substrate mostly use polycarbonate and acrylic resin. In addition, the settings of the LED light source are also more diversified. In this case, the substrate of the diffusion plate requires higher light fastness and durability and further lightweight. Light diffusion polycarbonate and propylene resins have excellent processability, but the proportion of these materials is high, there is a need for lightweight subject. While the light diffusion PP resin molding material, although the proportion is low, but it belongs to the crystalline resin, so the mobility is poor, it is difficult to achieve complex shape processing, but also has the problem of light resistance.

Results of accelerated test of light resistance (photo from Panasonic press release)

The release of the FULL BRIGHT PP by virtue of the independent development of the melting control technology, the mobility (MFR) to 25g/10min (formerly product 20g/10min), can meet the requirements of injection stretch blow molding. In addition, the original 0.5mm thin wall can not be realized. At the same time, it can also be used in the creative design of high LED lighting, such as deep drawing and surface finishing.

Through the development of the resin design technology which can give the light resistance, the weather resistance (water resistance, moisture resistance, chemical resistance) is obtained at the same time, the excellent light resistance is achieved. The equivalent of 10 years of outdoor use, in the 90 + UV environment for 90 days after treatment for E:2 (formerly delta color material for Delta E:17). In addition, the proportion of 0.93, compared with polycarbonate (1.2), the same volume weight can be reduced by 30%.

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