Next Article in Journal / Special Issue
Tri-n-Butylborane/WaterComplex-Mediated Copolymerization of Methyl Methacrylate with Proteinaceous Materials and Proteins: A Review
Previous Article in Journal / Special Issue
The Use of Natural Polymers in Tissue Engineering: A Focus on Electrospun Extracellular Matrix Analogues
Article Menu

Export Article

Open AccessArticle
Polymers 2010, 2(4), 554-574; doi:10.3390/polym2040554

Functionalization, Compatibilization and Properties of Polyolefin Composites with Natural Fibers

1
Institute of Composite and Biomedical Materials, IMCB- CNR, Via Diotisalvi 2, Pisa 56122, Italy
2
Department of Chemical Engineering, Industrial Chemistry and Materials Science, University of Pisa, Pisa 56122, Italy
3
Polymer Division, INTEMA-CONICET, University of Mar del Plata, Mar del Plata, Argentina
*
Author to whom correspondence should be addressed.
Received: 14 October 2010 / Revised: 2 November 2010 / Accepted: 10 November 2010 / Published: 15 November 2010
(This article belongs to the Special Issue Natural Polymers)
View Full-Text   |   Download PDF [854 KB, 16 November 2010; original version 15 November 2010]   |  

Abstract

The article is focused on analyzing the effect of functionalization and reactive processing on the morphological, thermal, rheological and mechanical properties of composites of isotactic polypropylene (PP), polystyrene (PS), poly(ethylene-vinyl acetate) (EVA), with cellulose fibers, hemp or oat as natural fillers. Both polymers and fibers were modified with bi-functional monomers (glycidyl methacrylate, GMA; maleic anhydride, MA) capable of facilitating chemical reactions between the components during melt mixing. Polyolefin copolymers containing reactive groups (PP-g-GMA, SEBS-g-MA, PS-co-MA, etc.) were used as compatibilizers. Optical and SEM microscopy, FTIR, RX, DSC, TGA, DMTA, rheological and mechanical tests were employed for the composites characterization. The properties of binary and ternary systems have been analyzed as a function of both fiber and compatibilizer content. All compatibilized systems showed enhanced fiber dispersion and interfacial adhesion. The phase behavior and the thermal stability of the composites were affected by the chemical modification of the fibers. Marked changes in the overall crystallization processes and crystal morphology of PP composites were observed owing to the nucleating effect of the fibers. The tensile mechanical behavior of the compatibilized composites generally resulted in a higher stiffness, depending on the fiber amount and the structure and concentration of compatibilizer. View Full-Text
Keywords: polymer composites; natural fibers; functionalization; compatibilization; morphology; physical-mechanical properties polymer composites; natural fibers; functionalization; compatibilization; morphology; physical-mechanical properties
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Pracella, M.; Haque, M.-U.; Alvarez, V. Functionalization, Compatibilization and Properties of Polyolefin Composites with Natural Fibers. Polymers 2010, 2, 554-574.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top