Studying the Impact Strength of Layered Denture Base Resin

Autor: samar abbas hannon, Wafaa A. Hussain, Selma M. Hussain
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Iraqi Journal of Physics, Vol 18, Iss 44 (2020)
Druh dokumentu: article
ISSN: 2070-4003
2664-5548
DOI: 10.30723/ijp.v18i44.495
Popis: This paper displays the effect of uncoated and coated chopped carbon fibers with alumina Al2O3 or Tri calcium phosphate (TCP) on the impact strength of acrylic poly methyl methacrylate (PMMA) denture base resin. To improve bonding between carbon fibers and coating materials powders, the surface of carbon fibers has been treated with Para amino benzoic acid (C9H10N2O3) and poly vinyl alcohol (PVA) was also used. The morphology of the coating layers has been examined by field emission scanning electron microscope (FE-SEM). From the results, PMMA reinforced with uncoated chopped carbon fiber has high impact strength value but still have bad aesthetic. Samples prepared by coated carbon fiber with Al2O3 or TCP have high impact strength values when compared to control group with good aesthetic. Impact strength was increased in samples when PVA increased and fibers amount decreased.
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