Effect of powder to liquid ratio on tensile strength and glass transition temperature of alumina filled poly methyl methacrylate (PMMA) denture base material.
The aim of this study was to evaluate the mechanical properties and glass transition temperature (Tg) of a denture base material prepared from high molecular weight poly methyl methacrylate (PMMA) and alumina (Al2O3). The glass transition temperature was studied by using differential scanning calorimetry (DSC). The effect of powder-to-liquid ratio was investigated. The result showed that the tensile properties and the Tg were slightly effected by the powder-to-liquid ratio. The ratio of 2.2:1 by weight of powder to liquid was found to be the best ratio for mixing the material to give the best result in this formulation.
School of Materials & Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia.
S H
SH
Mohamed
A
A
Arifin
Z A
ZA
Mohd Ishak
A
A
Nizam
A R
AR
Samsudin
D000537:Aluminum Oxide / Q000032:analysis / Q000138:chemical synthesis*; D002152:Calorimetry, Differential Scanning; D003819:Denture Bases; D005898:Glass; D006801:Humans; D019904:Polymethyl Methacrylate / Q000032:analysis / Q000138:chemical synthesis*; D011208:Powders; D013718:Tensile Strength; D044366:Transition Temperature
D011208:Powders; D019904:Polymethyl Methacrylate; D000537:Aluminum Oxide