The Study of the Relaxation Properties of Recycled Polypropylene Filled with Galvanic Waste

[摘要] The article shows the influence of the content of galvanic waste with different chemical composition on the physico-mechanical properties of thermoplastic composite material. In this study, samples of a secondary polypropylene filled with 15 wt.% galvanic waste with high content of iron and chromium were analysed. For a detailed evaluation of the mechanical behavior of filled recycled polypropylene, stress relaxation of the samples was tested in a wide temperature range from 20 to 120 degrees Celsius. According to the results of the study a generalized relaxation curve was developed in a special computer program by a parallel shift of initial curve of the stress relaxation along the axis of log(t).

[发布机构] Moscow State University of Civil Engineering, Yaroslavskoe shosse, 26, Moscow, Russia^1;A.N.Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova st. 28, Moscow, Russia^2

[关键词] Chemical compositions;Mechanical behavior;Physicomechanical properties;Recycled polypropylene;Relaxation curves;Relaxation property;Thermoplastic composite material;Wide temperature ranges