pps proceeding - Abstract Preview
pps proceeding
Symposium: S01 - Mixing and Compounding
Poster Presentation
 
 

AVALIAtION OF ADDITION OF CALCIUM CARBONATE AND WASTE MICRONIZED POLYETHYLENE-CO-VINYL ACETATE COMPOUND IN POLY (VINYL CHLORIDE)

Piazza Diego (1), Grisa Ana Maria Coulon (1)*, Flores Ricardo (2), Brandalise Rosmary Nichele (3), Zeni Mara (1)

(1) Universidade de Caxias do Sul - Rs - Brazil, (2) Grendene - RS - Brazil, (3) Universidade de Caxias do Sul - Rio Grande do Sul - Brazil

Poly (vinyl chloride) (PVC) is one of the most used materials in the footwear sector, but has inconvenient as processability, thermal stability and impact resistance relatively low. In the shoe factories of waste expanded sheets of polyethylene-covinyl acetate (EVA), resulting from the process of insoles, have hindered its reuse as halftones material unfeasible the recycling process can compromising the quality of the final product. The mixture of polymer, by a mechanical process can be an alternative to obtain a material with intermediate properties of the components separately.This study aims to evaluate the addition of calcium carbonate (CaCO3) and micronized residue EVA in PVC compound by means of the morphological, mechanical, physical and thermal. The compound of PVC and PVC compounds with 5, 10, 15 and 20 % by weight of CaCO3 and different amounts of residue micronized EVA (5, 10, 15 and 20 %) were developed dual extruder screw co-rotating and injection molded. The effect of the incorporation of CaCO3 and the residue micronized EVA morphological, physical, mechanical and thermal compounds. The results obtained by the morphological analysis showed the presence of CaCO3 particles, inorganic fillers with a porous structure. The incorporation of CaCO3 and residues micronized EVA did not alter the hardness, but the addition of different amounts of micronized waste EVA significantly decreased density and smaller weight loss promoted. In the results of the tensile strength of samples made from PVC with different residues EVA micronized there is a higher tensile strength for the sample with the highest concentration of EVA and greater deformation in traction with respect sample from EVA. The sample consists of PVC with 15 % EVA and 5 % of CaCO3 showed loss of mechanical properties. Temperature changes were observed in samples and the addition of residue micronized EVA compound PVC caused a shift in the temperature of the mass loss for a range of lower temperatures.