skip to main content

SciTech ConnectSciTech Connect

Title: Role of different compatibilizing approaches on the microstructure and mechanical properties of polypropylene/talc composites

Since in a highly filled polymer, a major problem arises from non-uniformity of properties due to the poor dispersion of filler, the application of coupling agents have been directed to overcome this problem and also to enhance the mechanical performance of the composites by improving the adhesion at the interface. In this study, a comparison between two major coupling approaches is conducted: 1) Using PPgMA as a kind of compatibilizer which changes the nature of the matrix, 2) Using titanate coupling agent which takes action at the interface and reacts with hydroxyl groups at the inorganic filler surface, resulting in the formation of monomolecular layer on the inorganic surface to increase compatibility of filler/matrix interface. The comparison is made based on the mechanical properties of the composites by means of elastic modulus, yield stress, impact strength and percentage of strain-to-fracture and evaluation of their effects on both the dispersion and adhesion of talc plates in the matrix through the microscopy. Transmission optical microscopy (TOM) and scanning electron microscopy (SEM) are used to observe the deformation micromechanism and the fracture surface of the composites, respectively.
Authors:
;  [1]
  1. Department of Materials Science and Engineering, Sharif University of Technology, Tehran (Iran, Islamic Republic of)
Publication Date:
OSTI Identifier:
22270979
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1593; Journal Issue: 1; Conference: PPS-29: 29. international conference of the Polymer Processing Society, Nuremberg (Germany), 15-19 Jul 2013; Other Information: (c) 2014 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPARATIVE EVALUATIONS; COMPOSITE MATERIALS; DEFORMATION; FRACTURES; IMPACT STRENGTH; INTERFACES; LAYERS; MATRIX MATERIALS; MICROSTRUCTURE; OPTICAL MICROSCOPY; POLYPROPYLENE; SCANNING ELECTRON MICROSCOPY; STRAINS; STRESSES; SURFACES; TALC; TITANATES