Pinpoint Loading Examinations of Poly(lactic acid) Biopolymers

  • Luca Kotrocz Budapest University of Technology and Economics, Department of Polymer Engineering
  • Péter Bakonyi Budapest University of Technology and Economics, Department of Polymer Engineering
Keywords: poly(lactic acid), biopolymer, pinpoint load, Vickers indentation, Dynamic Mechanical Analysis

Abstract

We have made a new mounting unit for Dynamic Mechanical Analysis (DMA) equipment, suitable for measuring microhardness and indentation, and examined its usability on thermoplastic poly(lactic acid) (PLA) material.  We used a Vickers-type microhardness indenter, and examined the dimensions of the indented area and the loading force. This novel unit is suitable for measuring the short and long-term behavior of the material using pinpoint load not only at room temperature (20-23 °C) – like common hardness tests – but at a wide range of temperatures.

Published
2018-11-15
How to Cite
Kotrocz, L. and Bakonyi, P. (2018) “Pinpoint Loading Examinations of Poly(lactic acid) Biopolymers”, Acta Technica Jaurinensis, 11(4), pp. pp. 206-217. doi: 10.14513/actatechjaur.v11.n4.480.
Section
Vehicle, Mechanical Engineering and Mechatronics