Inhibition effect of polyvinyl butyral on crystallization of polypropylene

Journal Title: Polyolefins Journal - Year 2018, Vol 5, Issue 2

Abstract

In this work, a series of polypropylene/polyvinyl butyral (PP/PVB) blends were prepared by melt-blending process, at PVB loadings 3 wt%, 10 wt%, and 30 wt%. The effects of PVB on crystallization behavior of PP were investigated by differential scanning calorimetry (DSC), and polarized optical microscopy (POM). The isothermal crystallization kinetics were analyzed by Avrami equations. It was found that the addition of PVB strikingly reduced the overall crystallization rate of PP. The POM results further indicated that the crystallization rate of PP/ PVB was significantly reduced by reducing the nucleation density of PP with the addition of PVB. The fractured surface morphology of PP/PVB blends was characterized by scanning electron microscopy (SEM), and the results showed that the PVB was uniformly dispersed in the PP matrix as small spherical particles, with a good dispersion and dimensional stability.

Authors and Affiliations

Jun Huang, Guanghua Tian, Huayi Li, Lei Li, Qian Li, He Huang, Shuirong Zheng, Youliang Hu

Keywords

Related Articles

Imido-modified SiO2-supported Ti/Mg Ziegler-Natta catalysts for ethylene polymerization and ethylene/1-hexene copolymerization

A novel imido-modified SiO2-supported Ti/Mg Ziegler-Natta catalyst for ethylene and ethylene/1-hexene polymerization is investigated. The catalyst is prepared by modification of (SiO2/MgO/MgCl2)TiClx Ziegler-Natta cataly...

Polymerization of propylene in a minireactor: Effect of polymerization conditions on particle morphology

Gas phase polymerization of propylene was carried out in a semi-batch minireactor using a commercially supported Ziegler–Natta (ZN) catalyst. The influence of variables including monomer partial pressure, external electr...

Macromolecular non-releasing additives for safer food packaging: application to ethylene/α-olefins and propylene based polymers

Some innovative solutions are proposed to the problem of the unavoidable physical migration of antioxidants from plastic films for packaging, in order to minimize the consequent undesirable effect of food contamination....

Introduction of titanium species into fluorine-modified SiO2- supported Cr-V bimetallic catalyst for ethylene polymerization and ethylene/1-hexene copolymerization

Chromium-vanadium (Cr-V) bimetallic catalysts are prepared by the introduction of vanadium into the Phillips catalyst which is one of the most significant industrial ethylene polymerization catalysts for tuning the Phill...

Influence of branching on the rheology and morphology of melt state long-chain branched polypropylene/polybuten-1 blends

In this study, the compatibility of polypropylene (PP)/polybutene-1 (PB-1) homopolymer blends before and after a long-chain branching process was studied. The blends were prepared and long-chain branched directly via a r...

Download PDF file
  • EP ID EP312079
  • DOI 10.22063/poj.2018.1979.1106 INTRODUCTION
  • Views 120
  • Downloads 0

How To Cite

Jun Huang, Guanghua Tian, Huayi Li, Lei Li, Qian Li, He Huang, Shuirong Zheng, Youliang Hu (2018). Inhibition effect of polyvinyl butyral on crystallization of polypropylene. Polyolefins Journal, 5(2), 141-151. https://europub.co.uk/articles/-A-312079