Recycling of corundum particles - two-body abrasive wear of polymeric composites based on waste

Abstract

Original scientific paperRecycling of all materials should be supported by modern society. Material recycling is one of the most important ways of dealing with waste. One of material recycling possibilities is an inclusion of waste into primary matrices. A suitable ratio and a combination of waste particles influence in a positive way mechanical properties of the material in which they are dispersed and they decrease its price. An example of the mentioned material recycling is a dispersion of corundum waste particles in the polymeric matrix. The combination of these types of matrix and filler gives birth to new polymeric particles composite -creates a qualitatively brand new material. As most important characteristics of the polymeric particle composites, one often lists resistance to abrasive wear, hardness, impact resistance and strength and, last but not least, their cost. This article deals mostly with the two-body abrasive wear resistance and hardness of polymeric particle composites with the waste Al2O3 as filler and two-component epoxy matrix. Keywords: corundum; epoxy resin; hardness; porosity; tribology Recikliranje čestica korunda -abrazivno trošenje između dva tijela od polimernih kompozita na temelju otpadaIzvorni znanstveni članak Moderno bi društvo trebalo podržavati recikliranje svih materijala. Recikliranje materijala jedan je od najvažnijih načina tretiranja otpada. Jedna od mogućnosti recikliranja materijala je uključivanje otpadnih materijala u primarne matrice. Odgovarajući omjer i kombinacija otpadnih čestica na pozitivan način utječu na mehanička svojstva materijala u kojem su raspršene, a smanjuju mu i cijenu. Primjer recikliranja spomenutog materijala je disperzija čestica otpada korunda u polimernoj matrici. Kombinacija takvih vrsta matrica i punila dovodi do novog kompozita polimernih čestica -stvara kvalitativno sasvim novi materijal. Kao najvažnije značajke kompozita od polimernih čestica često se navode otpornost na abrazivno trošenje, tvrdoća, otpornost na udar i čvrstoća, i zadnje, ali ne manje važno, cijena. Rad se uglavnom bavi otpornošću na abrazivno trošenje između dva tijela i tvrdoćom kompozita od polimernih čestica s otpadnim Al2O3 kao punilom i dvo-komponentnom matricom od epoksidne smole.

Investigation of Mechanical Properties of Horn Powder-Filled Epoxy Composites

“…Valasek and Muller have described "two-body" abrasive wear on an abrasive cloth and a "three-body" abrasive wear on a machine with a rubber disc using sand abrasion and showed that there is no clear correlation between the two and three-body abrasions as far as the volume decrease is concerned [22]. Valasek and Muller have studied the abrasive wear resistance and hardness of waste corundum particle/epoxy composites with waste Al 2 O 3 as filler and found that wear resistance and hardness have increased due to the inclusion of corundum [23].…”

Development and Applications of a Free Cutting by Nonconventional Tools

“…It is possible to implement bidirectional tool shift. [9][10][11][12][13] Because for total length of cutting edge in gear it passes that: …”

Adhesive Bond of Carbon Steel S235j0: Effects of Aluminium and Polymer Powder Filled Epoxy Adhesives on Mechanical Properties

“…Epoxies are widely used as high-performance structural adhesives [8,9,10,11,12]. Epoxy resins are attractive for metal-bonding adhesive systems.…”

“…A composite material is created by this way. Composite materials are promising structural components [9,18,19,20]. They comprise one or more discrete phases stored in the continuous phase [8,9].…”

“…It depends on their specific properties and on the combination with the properties of the matrix. That is why it is important to take into regard the matrix properties, the particle sizes, the concentration and mutual cohesiveness of the filler and the matrix when designing the product containing the particle filler composite [1,8,9,23]. The aim of the research was to determine the influence of the content of the microparticle filler on the mechanical properties of the polymer particle composite and the adhesive bond of the bonded material in the form of the structural carbon steel S235J0.…”