Authors: M.O. Pilin, T.N. Teryaeva, Z.R. Ismagilov

Title of the article: Influence of granulometric composition of fillers on properties of ultrahigh molecular weight polyethylene

Year: 2019, Issue: 2, Pages: 66-71

Branch of knowledge: 05.17.04 Technology of organic substances

Index UDK: 541.183

DOI: 10.26730/1999-4125-2019-2-66-71

Abstract: The article presents a study of the influence of the particle size of carbon and mineral fillers on the density of polymer composite materials (PCM) based on ultrahigh molecular weight polyethylene (UHMWPE) to obtain parts and structural elements subjected to shock loading and abrasion in mechanical engineering (rollers, gears, support sleeves, guides, etc.). The influence of the granulometric composition of the filler on the technological properties of PCM is shown. Compositions based on UHMWPE are obtained by mixing powder components, pressing tablets and their subsequent heat treatment. Evaluation of the effect of fillers was carried out on the density of the samples in accordance with GOST-15139. The optimal filler with particle sizes less than 0.05 mm and a concentration of 0.1% by weight is graphite, a carbon filler. With larger particle sizes (from 0.05 mm to 0.2 mm), talc has the greatest effect on UHMWPE, which has a lamellar structure and provides a denser packing of polymer molecules in PCM.

Key words: UHMWPE ultra-high molecular polyethylene polymer composites fillers technological properties of composites

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