The influence of radiation cross-linking on micro-indentation creep and the gel content of polyamide

Radiation Cross-linking is a process, at which the control change of polymers carried out of the purpose to reach the new polymeric materials with modified properties occurs. The submitted study deals with the influence of radiation doses on micro-creep properties of filled on non-filled polyamide 6.6. Micro-indentation creep of modified polyamide were measured using modern machinery DSI method (Depth Sensing Indentation) and were compared to the basic (nonirradiated) material. From the results it is evident, that the technology of radiation cross-linking has a positive influence on micro-creep properties of tested polyamide when the improvement of micro-creep properties was in the order of ten percent against the basic (non-irradiated) material. The influence of radiation cross-linking on micro-creep properties was confirmed by the measurement of the created crosslinked part (gel content) at individual tested radiation dose. © 2019, MM publishing Ltd. All rights reserved.European Regional Development Fund under the project CEBIA-Tech Instrumentation [CZ.1.05/2.1.00/19.0376]; Ministry of Education, Youth and Sports of the Czech RepublicMinistry of Education, Youth & Sports - Czech Republic [LO1303 (MSMT-7778/2014)]; Internal Grant Agency of TBU in Zlin [IGA/FT/2019/002