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Analiza indentacyjnej twardości, odporności na zarysowania i zużycia ślizgowego polimerowych materiałów z żywicy 3D DLP UV

Firlej Marcel, Bogucki Marcin, Gil Leszek, Samociuk Waldemar, Domagała Ivo, Bartnik Grzegorz, Pieniak Daniel, Krzysiak Zbigniew, Biedziak Barbara

Przemysł Chemiczny

2021

T. 100, nr 1

67--72

Zaprezentowano wyniki badań użytkowych właściwości powierzchni trzech wybranych popularnych tworzyw stosowanych w technologii druku 3D DLP LCD. Zbadano twardość indentacyjną, moduł sprężystości powierzchni, odporność na zarysowanie i zużycie w warunkach tarcia ślizgowego suchego. Wykazano istotne różnice we właściwościach użytkowych badanych materiałów.

Three com. resins used in printing technol. were studied for the indentation hardness, surface elasticity modulus as well as scratch and wear resistance under conditions of dry sliding friction. Significant differences in the functional properties of the tested materials were demonstrated.

Statistical Comparison of the Hardness and Scratch-Resistance of the PMMA Polymers Used in Orthodontic Appliances

Domagała Ivo, Gil Leszek, Firlej Marcel, Pieniak Daniel, Selech Jarosław, Romek Dawid, Biedziak Barbara

Advances in Science and Technology. Research Journal

2020

Vol. 14, no 4

250--261

The paper presents the studies and results of the Shore hardness and scratch test of polymer materials used in medical devices. Polymers of organic PMMA (poly(methyl methacrylate)) origin for the manufacture of orthodontic appliances were tested. Samples of test materials differed in manufacturing technology. The surface functional properties of four materials were compared. Hardness tests were performed with the Shore D hardness test method. The scratch test was done with a Rockwell diamond cone indenter. The hardness was also calculated from the scratch test. Shore’s highest hardness was demonstrated in 1A material. But the differences in Shore’s hardness were small. Larger differences between the tested materials were shown in the scratch test than in the Shore hardness test. The lowest residual scratch depth (Rd) was obtained for 1A material. 3A material had the highest scratch hardness.