Pinnacle Polymers PP3
Pinnacle Polymers recent introduction of a new clarified random copolymer technology has raised the bar for clarified polypropylene. Pinnacle Polymer's PP5112C3, PP5135C3, PP5135I3 and PP5155C3 have been introduced to the market with an improved look and color for polypropylene parts.
These new grades offer clarity similar to the current random copolymer standard, but with several added benefits inherent to the PP3 resins:
Pinnacle Polymers PP3 color performance
Pinnacle Polymers PP3 molding performance
The processing window advantage of Pinnacle's PP3 resins allows parts to be molded at lower temperatures and hence, shorter cooling times. Studies have shown that this allows for significant reduction in cycle time and energy consumption - both contributing to reduced costs and increase productivity.
Potential Savings - IM hydraulic 1
Potential Savings - IM electric 2
Note 1: Based on hydraulic injection molder tests, optimized for cycle time and clarity performance,
actual results may vary with equipment and mold design
Processing with Pinnacle Polymers PP3 Clarified Polypropylene
Pinnacle Polymers PP3 clarified polypropylene (CPP) can be run on existing molding equipment, with existing setups, resulting in clarified parts with excellent optical properties and improved color performance giving parts a cleaner, brighter appearance.
PP3 resins also offer some significant processing advantages over other clarified polypropylene grades. In order to take advantage of these properties, changes may need to be made on the molding equipment:
Reduced Molding Temperatures
It may be possible to reduce barrel temperature while still maintaining maximum part clarity. Depending on the molding operation, PP3 resins allow for cooler temperatures at the extruder, resulting in possible savings in cycle time and energy consumption.
Reduced Cooling Time
It may also be possible to reduce the cooling time required during the cooling step. This reduction is made possible by lower molding temperatures (above), and a higher crystallinity temperature (Tc) inherent to PP3 resins.
The combined effect of these changes may allow for higher productivity and reduced energy consumption, allowing significant savings in manufacturing costs.
Handling Pinnacle PP3 Clarified Polypropylene
Pinnacle Polymers PP3 CPP is not compatible with other standard clarified polypropylene grades available today. Because of its unique properties, PP3 resins that are mixed with other grades may show degradation in clarity.
It is recommended that no more than 10% mixing (of either material) occurs with PP3 resins to achieve maximum optical properties. Avoid mixing resins in resin silos or storage containers to help maintain the best part aesthetics.
Care should be taken with any resin transition as the local mixing at the machine may results in poor optical properties in a few molded parts.