Izvorni znanstveni članak
Testing of the tensile strength of acrylics processed by different polymerization technologies
Bela Gazafi
; Obratna ambulanta Zelezarne Jesenice
Krešimir Kraljević
; Zavod za mobilnu protetiku Stomatološkog Fakulteta, Zagreb, Hrvatska
Sažetak
The tensile strength of thermosetting acrylics on the base of prostheses (Biocryl-R) following three different polymerization technique has been tested. The experiments were conducted in a S.A.D.A.M.E.L. universal test appliance equipped with a Hewlett Packard recorder. The numerical values obtained were processed using an IBM computer with Student's test and Snedecor's F test. On the basis of the statistical analysis of the tensile strength test results following three different polymerization technologies (A = 68.62 • 106 N/m2 (68.62 N/mm2), B = - 62.21 • 106 N/m2 (62.21 N/mm2), C = 65.35 • 106 N/m2 (65.35 N/mm2) no significant differences among the values obtained for mechanical resistance to tensile strength of the acrylics studied could be demonstrated. Method A could be recommended for economic reasons only, as it is the shortest polymerization technology.
Ključne riječi
acrylic resins; mechanical properties; tensile strength
Hrčak ID:
105514
URI
Datum izdavanja:
15.9.1984.
Posjeta: 1.178 *