2012 | OriginalPaper | Buchkapitel
Single Polymer Composites via Shear Controlled Orientation Injection Molding (SCORIM) or Oscillating Packing Injection Molding (OPIM) Techniques
verfasst von : J. Fakirov, Z.-M. Li
Erschienen in: Synthetic Polymer-Polymer Composites
Verlag: Carl Hanser Verlag GmbH & Co. KG
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Among the materials used most often, the strength of metal and ceramic is almost equal to the theoretical values. However, the strength of the products of polymers is far lower than the theoretical strength. Despite the fact that the theoretical strength and modulus of high-density polyethylene (HDPE) can reach 27 GPa and 300 GPa, respectively, almost equal to those of steel and carbon fiber, it is difficult to attain those high values, due to the fact that most polymer materials are semicrystalline and the chains in amorphous phase are randomly coiled.