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Titre du document / Document title

In-situ fiberized poly(ethylene terephthalate) as a reinforcement to poly(propylene) matrix

Auteur(s) / Author(s)

SHEN Jing-Wei (1) ; HUANG Wen-Yi (1) ; ZUO Sheng-Wu (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, Sichuan, CHINE

Résumé / Abstract

The reinforced poly(propylene) (PP)/poly(ethylene terephthalate) (PET) in-situ fiberized composites were prepared by extrusion-drawing-injection molding. The influences of PET weight fraction (fw) on the PET fiberization, phase morphology, and mechanical properties of the composites, together with their functional mechanisms were studied by contrast to the normal-blended materials without drawing. The results show that as the fw rises from 0 to 20%, the number of PET fibers increases, whereas their diameter and dispersity decrease till fw = 15% and then increase, and the number of remained PET particles tends to rise. These changes of PET fiberization and phase morphology with fw were attributed to the consequence of the combined actions of breakup, coalescence, and deformation of the PET dispersed phase in the PP matrix during the extrusion drawing. Correspondingly, the tensile strength (σt) and Young's modulus (E) of the in-situ composites increase till fw = 15% and then decrease, with maxiumum gains of α, and E of about 20 and 70% relative to the neat PP, respectively. This σ/fw relation was ascribed to the counterbalanced result between the reinforcing effect of the dispersed phaseon matrix and the interfacial flaw effect of two immiscible phases, while the E/fw ralation was considered as a representation of the rigidizing effect of the fibers on the matrix being controlled by both their number and diameter.

Revue / Journal Title

Macromolecular materials and engineering    ISSN  1438-7492 

Source / Source

2003, vol. 288, no8, pp. 658-664 [7 page(s) (article)] (21 ref.)

Langue / Language

Anglais

Editeur / Publisher

Wiley, Weinheim, ALLEMAGNE  (2000) (Revue)

Mots-clés anglais / English Keywords

Experimental study

;

Concentration effect

;

Mechanical properties

;

Morphology

;

Injection molding

;

Extrusion

;

Manufacturing

;

Oriented polymer

;

Ethylene terephthalate polymer

;

Synthetic fiber

;

Propylene polymer

;

In situ composite

;

Fiber reinforced material

;

Composite material

;

Mots-clés français / French Keywords

Etude expérimentale

;

Effet concentration

;

Propriété mécanique

;

Morphologie

;

Moulage injection

;

Extrusion

;

Fabrication

;

Polymère orienté

;

Ethylène téréphtalate polymère

;

Fibre synthétique

;

Propène polymère

;

Composite in situ

;

Matériau renforcé fibre

;

Matériau composite

;

Mots-clés espagnols / Spanish Keywords

Estudio experimental

;

Efecto concentración

;

Propiedad mecánica

;

Morfología

;

Moldeo por inyección

;

Extrusión

;

Fabricación

;

Polímero orientado

;

Etileno tereftalato polímero

;

Fibra sintética

;

Propeno polímero

;

Material reforzado fibra

;

Material compuesto

;

Localisation / Location

INIST-CNRS, Cote INIST : 13869, 35400011432185.0070

Nº notice refdoc (ud4) : 15064710



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