Composite material based on the polyethylene terephthalate polymer and modified fly ash filler

Abstract

The possibility of filling the recycled polyethylene terephthalate (rPET) with fly ash was studied to make a polymer composite material (PCM). It is shown that high adhesion between polymeric matrix and mineral filler is the key parameter to produce high performance PCM. For this purpose the acid-basic interaction as well as the thermodynamic work of adhesion between components of PCM were calculated. The technique of modifying fly ash filler with 5% concentration solution of sulfuric acid to increase acid-basic interaction has been elaborated. The resulting behavioral patterns are listed and compared to those of composites containing untreated fly ash particles.

Fly Ash Composites: A Review

“…MMC increases with increasing fly ash content [24]. The variation of the tensile strength of polyphenylene oxide composite with fly ash reinforcement has been experimentally investigated [25]. It has been shown that for higher size fly ash content, tensile strength (ultimate tensile strength (UTS)) is independent of fly ash content, whereas for smaller particle sizes, UTS decreases due to the agglomeration for high fly-ash concentration [25].…”

“…In the context of Al6061 composites, there is a conversion from ductile to brittle nature with increasing fly ash content [7]. This leads to an increase in the hardness of these composites [23], [25]. In the case of polymers, resistance to plastic deformation is increased by the addition of fly ash.…”