Scientific journal
Название журнала на английском
ISSN 2500-0802
ПИ №ФС77-61154

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A STUDY OF THE MECHANICAL PROPERTIES OF HIGH STRENGTH FIBER BASED ON ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE

Stepashkin A.A. 1 Maksimkin A.V. 1 Chukov D.I. 1 Tcherdyntsev V.V. 1
1 National University of Science and Technology “MISIS”
This research work presents the results of the investigation of the elastic and strength properties of the highstrength UHMWPE fibers during tensile tests. Methods of the UHMWPE samples preparation were proposed, which allows to test the strength of threads to 3-3.2 GPa. Features of fixing of threads in the grips of the testing machine with using of pads of drawing paper and veneer were studied. It was found that the use of epoxy resin for sealing can provide sufficient adhesion interaction between the test pads and threads that prevents them from slipping out of the grips of the testing machine. The effect of the test conditions for the type strain diagrams of threads was investigated. It is shown that for an adequate determination of the strength of dry threads in the tensile test to monitor the quality of sticking is necessary, to ensure a uniform deformation of the filaments in the threads, and to ensure their simultaneous failure during the test.