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Polymer composite strengthening by developed injection moulding technique

Bilewicz M., Viana J., Dobrzański L.

Archives of Materials Science and Engineering

2008

Vol. 30, nr 2

69-72

Purpose: This work presents method of mechanical strengthening of nanoreinforced polymer and immiscible polymer blends of polypropylene (PP) and polycarbonate (PC) obtained by non-conventional injection moulding technique. Design/methodology/approach: Melt manipulation of solidifying polymer inside mould cavity has been used for improving fracture toughness of polymer composites and nanocomposites. Findings: Improvement of mechanical properties, especially for nanocomposites, has been obtained due to different processing conditions and ratios of particular components. Research limitations/implications: Nanocomposites of polymer blends and montmorillonite were moulded by direct injection moulding according to melt temperature and stroke time-number combination included in design of experiments. Practical implications: Comparison of analyzed composites brought satisfying results proving advantage of implicated method and composites ratio as well. Originality/value: Non conventional injection moulding method and their influence on strengthening polymer composites and nanocomposites is promising technology with multi-applicable character.