Density Range of Compression-Molded Polypropylene-Wood Composites
Keywords:Thermoplastic, fiberboard, polypropylene, density, compression molding
AbstractWood and polypropylene fibers were mixed together in various proportions and compression-molded to boards of various specific gravities. The full theoretical specific gravity range could not be obtained even when the boards were cooled in the press. Voids surrounding the wood fibers possibly were due to the shrinkage of the wood fiber following pressing. Bending and tension properties were influenced more by the compression of the wood fibers than by the percentage of wood fiber addition.
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