Cost-effective composites. (Inside, Under, Elsewhere & Otherwise).
But in order to achieve that, the company claims, the molder has a choice: using prefabricated glass/resin pellets or using CPI's patented direct feed thermoplastic (DFT) process. The direct approach, skipping the pellet manufacturing, is said to save the molder about 40% (e.g., for a 40% glass-reinforced polypropylene, the pellet material cost is said to be $1.40/lb. versus $1.00/lb. for the DFT material).
Briefly, the DFT process employs a proprietary extruder design that gently mixes the fiber/resin melt such that the reinforcing fibers aren't damaged so that they maintain a high degree of their initial length in the compounded thermoplastic composite.
One cited application of a 40% glass-filled polypropylene that's made with the DFT process is an under hood front end assembly that is used by Volvo to replace a metal part (the high resistance to heat distortion is said to be a reason why the composite can be used in this application).
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|Comment:||Cost-effective composites. (Inside, Under, Elsewhere & Otherwise).|
|Publication:||Automotive Design & Production|
|Article Type:||Brief Article|
|Date:||Feb 1, 2002|
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