The Effect of Additives Such as Calcium Carbonate (CaCO3) or di-n-Octyl Phthalate (DnOP) on the Flotation of PVC Plastic Products

ZAHRA FOROUTANFAR¹

1) Department of Chemistry, Shahreza Branch, Islamic Azad University, shahreza, Iran

Publication : 2nd International Conference on New Research & Achievements in Science, Engineering & Technologies(setbconf.com/2nd)
Abstract :
In this paper, the effect of additives such as calcium carbonate or DnOP diethyl phthalate on the flotability of PVC plastic products was investigated. Also, the results of flotability tests were used to study the natural flotability of PVC plastic products. Examination of free energy of plastics surface with polished and ordinary surfaces showed that the crushed or fragmented particles of these plastics in the flotability system also show the same surface properties of plastics and additives have significant effects on free energy. The surface of PVC plastic products. The results of addition CaCO3 include increasing the force of interaction between the plastic-water surface and decreasing the cohesive force between the plastic-bubble surface, and these effects show that in general it reduces the flotability. DnOP reduces the force of interaction between plastic and water, increases the cohesive force between plastic and bubbles, and thus increases the hydrophobicity of plastic and increases flotability. The flotability test on PVC plastics and PVC plastic waste confirms the above results, also the infrared spectrum showed the effect of additives on two categories of plastic waste. These findings provide some flotability techniques regarding the type of plastic that can be used to recycle PVC plastic waste
Keywords : Additive Flotability PVC plastic Interaction free energy Surface free energy