Titre du document / Document title

Mechanical properties of injection-molded isotactic polypropylene/roselle fiber composites

Auteur(s) / Author(s)

JUNKASEM Jirawut ⁽¹⁾ ; MENGES James ⁽²⁾ ; SUPAPHOL Pitt ⁽¹⁾ ;

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

⁽¹⁾ The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, THAILANDE
⁽²⁾ Asia Bio-Composites Limited, Bangkok 10330, THAILANDE

Résumé / Abstract

Natural fiber-thermoplastic composite materials, based on their cost-effectiveness and environmental friendliness, have attracted much interest both scientifically and technologically in recent years. Other advantages of natural fibers are good specific strength, less abrasion, and less irritation upon inhalation (in comparison with some common inorganic fillers). In the present contribution, roselle (Hibiscus sabdariffa L.) fibers were chosen and used as reinforcing fillers for isotactic polypropylene (iPP) for the first time, due mainly to the cost-effectiveness and natural abundance on Thai soil. Processibility and mechanical properties of the resulting composites were investigated against the type and the mean size of the fibers. The results showed that the highest mechanical properties were observed when roselle bast fibers were incorporated. When whole-stalk (WS) fibers (i.e., the weight ratio of bast and core fibers was 40: 60 w/w) were used, moderate mechanical properties of the resulting composites were realized. The optimal contents of the WS fibers and the maleic anhydride-grafted iPP compatibilizer that resulted in an improvement in some of the mechanical properties of the resulting composites were 40 and 7 wt %, respectively.

Revue / Journal Title

Journal of applied polymer science ISSN 0021-8995 CODEN JAPNAB

Source / Source

2006, vol. 101, n^o5, pp. 3291-3300 [10 page(s) (article)] (7 ref.)

Langue / Language

Anglais

Editeur / Publisher

Wiley, New York, NY, ETATS-UNIS (1959) (Revue)

Mots-clés anglais / English Keywords

Spermatophyta ; Angiospermae ; Dicotyledones ; Malvaceae ; Technological properties ; Olefin polymer ; Experimental study ; Optimization ; Concentration effect ; Organic anhydride ; Functional polymer ; Compatibilizer ; Property processing relationship ; Injection molding ; Processability ; Hibiscus ; Plant fiber ; Natural fiber ; Composite material ; Fiber reinforced material ; Propylene polymer ; Isotactic polymer ; Mechanical properties ;

Mots-clés français / French Keywords

Spermatophyta ; Angiospermae ; Dicotyledones ; Malvaceae ; Hibiscus sabdariffa ; Fibre roselle ; Propriété technologique ; Oléfine polymère ; Etude expérimentale ; Optimisation ; Effet concentration ; Anhydride organique ; Polymère fonctionnel ; Compatibilisant ; Relation mise en oeuvre propriété ; Moulage injection ; Ouvrabilité ; Hibiscus ; Fibre végétale ; Fibre naturelle ; Matériau composite ; Matériau renforcé fibre ; Propène polymère ; Polymère isotactique ; Propriété mécanique ;

Mots-clés espagnols / Spanish Keywords

Spermatophyta ; Angiospermae ; Dicotyledones ; Malvaceae ; Propiedad tecnológica ; Olefina polímero ; Estudio experimental ; Optimización ; Efecto concentración ; Anhídrido orgánico ; Polímero funcional ; Compatibilizante ; Relación puesta en marcha propiedad ; Moldeo por inyección ; Laborabilidad ; Hibiscus ; Fibra vegetal ; Fibra natural ; Material compuesto ; Material reforzado fibra ; Propeno polímero ; Polímero isotáctico ; Propiedad mecánica ;

Mots-clés d'auteur / Author Keywords

composite ; isotactic polypropylene ; roselle ; mechanical properties ; compatibilizer ;

Localisation / Location

INIST-CNRS, Cote INIST : 1257, 35400013901567.0700