1970-02-01

Long-Term Mechanical Behavior of Coupled Glass Reinforced Polypropylene 700486

Mechanical property information is presented for the composite system, chopped glass fibers plus polypropylene matrix, where effective fiber-to-matrix adhesion has been achieved. The data presented were developed to serve three major purposes: to establish coupled glass reinforced polypropylene (coupled GRPP) as a material of a different class than conventional GRPP, to provide long-term data (creep and stress relaxation) for coupled GRPP which might form the basis for engineering design, and to illustrate the effects of such process-related factors as coupling, glass fiber concentration, fiber length, and fiber orientation on the structural properties of coupled GRPP systems.

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