Abstract
Copper/low-density polyethylene (Cu/LDPE) porous composites are novel materials for copper intrauterine devices (Cu-IUDs) developed in our research group. Here the influence of pore morphology on the mechanical properties of Cu/LDPE porous composites is investigated. The results show that the mechanical properties of the porous composites vary with the changing of pore morphology. The mechanical properties of the porous composites with pipe-shaped pores (PCD-30) are the best, and those of the porous composites with polyhedral pores (PCP-30) are the worst among those experimental porous composites samples. Those differences might be attributed to the influences of different pore shapes on the occurrence of stress concentration and different progens on the fine-grain strengthening of LDPE matrix. These results are very important and they can be applied to guide the design of Cu/LDPE porous composites IUDs for the future clinical use.
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