By Bob Lebeaux, President, The Plastics Group of America
November 11, 2009 in Polypropylene
If you have mixed color unfilled polypropylene scrap and would like to reuse it for another application but need to increase its physical properties, specifically its strength and stability, we can help. Applications like this are right up our alley. We can compound your scrap with a mineral filler to give you the properties you seek. The type and percentage of mineral would be determined by what properties you are looking for. The only limitations you may run into would be color and the final Melt Index of the compounded material. The Melt Index may go lower when we add the mineral filler, but this can be adjusted. The color you can get will be determined by the feed stock polypropylene (for instance, it is difficult to get a light color from a dark feed stock).
You can check our web site and see varying physical properties for the types and percentages of mineral reinforcing agents. When you find the specification you need, The Plastics Group can recompound your scrap polypropylene feedstock with the mineral you choose and provide it back to you in pellet form for reuse. This is the beauty of polypropylene - instead of throwing it away, it can be easily and successfully recycled.
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