Premium
Properties of recycled material containing poly(vinyl chloride), polypropylene, and calcium carbonate nanofiller
Author(s) -
Andričić Branka,
Kovačić Tonka,
Klarić Ivka
Publication year - 2008
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.20986
Subject(s) - polypropylene , materials science , ultimate tensile strength , calcium carbonate , composite number , elongation , composite material , vinyl chloride , polyvinyl chloride , izod impact strength test , melting point , polymer , copolymer
Even at low content, polypropylene significantly worsens mechanical properties of the recycled PVC composite, i.e. tensile strength at break and elongation at break. But, if small quantities of surface modified nanofiller calcium carbonate is added, an applicable composite that contains 10–30% of waste material can be made. It was determined that nanosized calcium carbonate lowers melting point of polypropylene, perhaps by changing its crystalline form and has no influence on thermooxidative degradation of poly(vinyl chloride). Addition of nanofiller slightly lowers the surface free energy of the composites what is more prone when the low content of polypropylene is present. The recovery of tensile strength and elongation at break occurs and those properties reach the highest value at about 6% of CaCO 3 . POLYM. ENG. SCI., 2008. © 2008 Society of Plastics Engineers