The use of wood fillers in thermoplastic compounds can provide many benefits for a wide variety of end users. However, the use of this type of filler can cause a number of mixing and processing problems associated with the dispersion of the wood and flow characteristics of the mixed composite. Common deficiencies include: surface mottling and fracture, low flow rates, and compounding problems due to low temperature mxing requirements. This presentation will discuss the use of chemical process aids and dispersion enhancers that may allow for higher levels of wood filler loading without sacrificing processability, performance properties or surface appearance. If these characteristics can be achieved, the woodifiber composites may be able to penetrate markets they have been unable to penetrate to date.
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