Experimental analysis of the strength of a polymer produced from recycled material

Abstract

Predmet ovog rada je ispitivanje nosivosti polimera dobivenog iz recikliranog materijala i definiranje idealiziranog dijagrama naprezanje/deformacija, iz kojeg se lako može definirati modul elastičnosti. Analiza je provedena pomoću polimernih traka koje su izrađene od polimera etilena visoke gustoće (HDPE). U ovom slučaju polietilen (PE) je dobiven, gotovo u cijelosti, od recikliranog materijala, što u konačnici uvjetuje i njegovu cijenu. U pravilu je visoke gustoće i ima vrlo dobre mehaničke karakteristike i otpornost prema kemikalijama. Kao materijal prisutan je u proizvodnji rezervoara te posuda raznih namjena. U ovom radu nastoje se definirati osnovne karakteristike polimera kao materijala kroz rasteznu čvrstoću te predložiti idealizirani radni dijagram. Namjera je također kako bi ovaj rad postao alat kojim bi se mogao definirati dijagram naprezanje/deformacija za bilo koji drugi sličan materijal te otvoriti mogućnosti širokog spektra primjene.The subject of this paper is experimental testing of a polymer and definition of the idealised stress/strain diagram, from which the modulus of elasticity can be easily defined. The analysis was conducted on polymer straps made of ethylene polymer of high density (HDPE). In this case the polyethylene (PE) was produced almost entirely from recycled material and that defines its cost. PE generally has high density and very good mechanical characteristics and resistance to chemicals. As a material it is used in production of reservoirs and containers for various purposes. This paper is trying to define the basic characteristics of polymers by observing their tensile strength, to propose an idealised stress/strain diagram and to define the numerical values of the modulus of elasticity. Also the intention is to create a tool which would enable the definition of the stress / strain diagram for any similar material and broaden the application and use of such types of materials