Overview
Milliken has designed its family of DeltaMax® Performance Modifiers for use in injection moulded applications of virgin polypropylene impact copolymers (ICPs) and recycled polypropylene (rPP) resins. While PP is a cost-effective material, it traditionally has had some limitations when it comes to providing a balance of high impact with stiffness and melt flow. This can make it difficult to cost-effectively formulate, design, and process parts. This is particularly true for rPP resins, which typically lack high melt flow and impact properties required for many injection moulded parts in consumer, industrial, and automotive applications.
DeltaMax Performance Modifiers address this issue head-on. The technology enables converters to enhance the impact and melt flow of their ICP or rPP resins by adding a masterbatch machine-side at the injection press. The net effect is the ability to design parts with higher impact strength and thinner profiles, run machines with faster cycle times or lower temperatures, limit the use of costly impact modifiers, and reduce inventory of multiple ICP resins.
Another benefit is that it allows the use of a higher percentage of post-consumer recycled (PCR) material in a PP blend by creating a higher-performing base resin. Adding DeltaMax to the base PP copolymer improves its impact and melt flow properties, enabling a greater use of recycled content in the blend. This further enhances the sustainability profile of polypropylene, which not only has a modest carbon footprint to manufacture, but is tough, durable, relatively lightweight and inherently recyclable.
Learning Objectives:
- Learn about an innovative, new technology that can be used to overcome the traditional trade-offs with polypropylene related to melt-flow, impact and stiffness properties
- Learn how to meet your circularity goals by enhancing the properties of recycled polypropylene (rPP) resins in your mix, thereby enabling the use of a greater amount of recycled content in the blend.
- Lower your injection moulding processing temperature without negatively affecting performance, which will enable you to use less energy and reduce your carbon footprint.
