Melt processing and characterization of polypropylene/pristine montmorillonite nanocomposite: Influence of compatibilizer and hyperbranched polymer

Autor: Pyus D. Tatiya, Vikas V. Gite, Mahendra R. Nevare, Pramod P. Mahulikar
Rok vydání: 2014
Předmět:
Zdroj: Journal of Vinyl and Additive Technology. 22:72-79
ISSN: 1083-5601
DOI: 10.1002/vnl.21430
Popis: In the present investigation, nanocomposites of polypropylene (PP)-montmorillonite (MMT) clay were prepared by a single-step compounding method to study the influence of hyperbranched polyester (HBPE) on rheological and mechanical properties of PP composites in the presence of a compatibilizer. In service of this objective, polyvinylchloride-grafted-maleic anhydride (PP-g-MA) was used as a compatibilizer for hydrophobic PP and hydrophilic clay. Rheological property in terms of melt viscosity was examined by a Brabender torque rheometer. The composite's morphology was studied by scanning electron microscopy (SEM) and transmission electron microscopy (TEM), whereas the dispersion state of nanoparticles in the PP matrix was studied by X-ray diffraction (XRD). The thermal behavior of nanocomposites was examined by differential scanning calorimetry (DSC). The analysis of results confirmed that the interactions among both additives significantly influenced the morphology, rheology, and thermomechanical properties of the nanocomposites. J. VINYL ADDIT. TECHNOL., 22:72–79, 2016. © 2014 Society of Plastics Engineers
Databáze: OpenAIRE