Study of the poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/cellulose nanowhisker composites prepared by solution casting and melt processing

Long Jiang, Erving Morelius, Jinwen Zhang, Michael P Wolcott, James Holbery

Research output: Contribution to journalArticle

157 Citations (Scopus)

Abstract

In this study cellulose nanowhiskers (CNW) were prepared by sulfuric acid hyrolysis from microcrystalline cellulose (MCC). The biopolymer composites of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)/CNW, was fabricated by solution casting using N,N-dimethylformamide (DMF) as the solvent. Homogeneous dispersion of the whiskers was achieved and the composites exhibited improved tensile strength and modulus and increased glass transition temperature. The melt processing (extrusion and injection molding) of PHBV/CNW composites was also attempted. Despite using polyethylene glycol (PEG) as a compatibilizer, CNW agglomerates formed during freeze-drying could not be broken and well dispersed by the extrusion process due to the large surface area and the polar nature of CNW. As a result, the melt processed PHBV/CNW composites exhibited decreased strength and constant glass transition temperature, a typical trend of microparticle filled polymer systems. MCC was also treated by high-speed mechanical homogenizer to reduce its particle size down to nanoscale range. The homogenized MCC (HMCC) was blended with PHBV by melt processing with the same conditions. The obtained composites were found to have similar properties as the melt-processed PHBV/CNW composites due to poor HMCC dispersion. To the best of our knowledge, PHBV/ CNW system has not been studied so far. The treatment of MCC with high-speed homogenizer has also not been reported. This study augments the research on CNW nanocomposites.

Original languageEnglish (US)
Pages (from-to)2629-2645
Number of pages17
JournalJournal of Composite Materials
Volume42
Issue number24
DOIs
StatePublished - Dec 1 2008

Fingerprint

Nanowhiskers
Cellulose
Casting
Composite materials
Processing
Extrusion molding
Filled polymers
poly(3-hydroxybutyrate)-co-(3-hydroxyvalerate)
Dimethylformamide
Biopolymers
Compatibilizers
Injection molding
Extrusion
Nanocomposites
Drying
Tensile strength
Elastic moduli
Particle size
Sulfuric acid

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Materials Chemistry

Cite this

Jiang, Long ; Morelius, Erving ; Zhang, Jinwen ; Wolcott, Michael P ; Holbery, James. / Study of the poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/cellulose nanowhisker composites prepared by solution casting and melt processing. In: Journal of Composite Materials. 2008 ; Vol. 42, No. 24. pp. 2629-2645.
@article{1fa2ac47c20d414498c6631127836d1f,
title = "Study of the poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/cellulose nanowhisker composites prepared by solution casting and melt processing",
abstract = "In this study cellulose nanowhiskers (CNW) were prepared by sulfuric acid hyrolysis from microcrystalline cellulose (MCC). The biopolymer composites of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)/CNW, was fabricated by solution casting using N,N-dimethylformamide (DMF) as the solvent. Homogeneous dispersion of the whiskers was achieved and the composites exhibited improved tensile strength and modulus and increased glass transition temperature. The melt processing (extrusion and injection molding) of PHBV/CNW composites was also attempted. Despite using polyethylene glycol (PEG) as a compatibilizer, CNW agglomerates formed during freeze-drying could not be broken and well dispersed by the extrusion process due to the large surface area and the polar nature of CNW. As a result, the melt processed PHBV/CNW composites exhibited decreased strength and constant glass transition temperature, a typical trend of microparticle filled polymer systems. MCC was also treated by high-speed mechanical homogenizer to reduce its particle size down to nanoscale range. The homogenized MCC (HMCC) was blended with PHBV by melt processing with the same conditions. The obtained composites were found to have similar properties as the melt-processed PHBV/CNW composites due to poor HMCC dispersion. To the best of our knowledge, PHBV/ CNW system has not been studied so far. The treatment of MCC with high-speed homogenizer has also not been reported. This study augments the research on CNW nanocomposites.",
author = "Long Jiang and Erving Morelius and Jinwen Zhang and Wolcott, {Michael P} and James Holbery",
year = "2008",
month = "12",
day = "1",
doi = "10.1177/0021998308096327",
language = "English (US)",
volume = "42",
pages = "2629--2645",
journal = "Journal of Composite Materials",
issn = "0021-9983",
publisher = "SAGE Publications Ltd",
number = "24",

}

Study of the poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/cellulose nanowhisker composites prepared by solution casting and melt processing. / Jiang, Long; Morelius, Erving; Zhang, Jinwen; Wolcott, Michael P; Holbery, James.

In: Journal of Composite Materials, Vol. 42, No. 24, 01.12.2008, p. 2629-2645.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Study of the poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/cellulose nanowhisker composites prepared by solution casting and melt processing

AU - Jiang, Long

AU - Morelius, Erving

AU - Zhang, Jinwen

AU - Wolcott, Michael P

AU - Holbery, James

PY - 2008/12/1

Y1 - 2008/12/1

N2 - In this study cellulose nanowhiskers (CNW) were prepared by sulfuric acid hyrolysis from microcrystalline cellulose (MCC). The biopolymer composites of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)/CNW, was fabricated by solution casting using N,N-dimethylformamide (DMF) as the solvent. Homogeneous dispersion of the whiskers was achieved and the composites exhibited improved tensile strength and modulus and increased glass transition temperature. The melt processing (extrusion and injection molding) of PHBV/CNW composites was also attempted. Despite using polyethylene glycol (PEG) as a compatibilizer, CNW agglomerates formed during freeze-drying could not be broken and well dispersed by the extrusion process due to the large surface area and the polar nature of CNW. As a result, the melt processed PHBV/CNW composites exhibited decreased strength and constant glass transition temperature, a typical trend of microparticle filled polymer systems. MCC was also treated by high-speed mechanical homogenizer to reduce its particle size down to nanoscale range. The homogenized MCC (HMCC) was blended with PHBV by melt processing with the same conditions. The obtained composites were found to have similar properties as the melt-processed PHBV/CNW composites due to poor HMCC dispersion. To the best of our knowledge, PHBV/ CNW system has not been studied so far. The treatment of MCC with high-speed homogenizer has also not been reported. This study augments the research on CNW nanocomposites.

AB - In this study cellulose nanowhiskers (CNW) were prepared by sulfuric acid hyrolysis from microcrystalline cellulose (MCC). The biopolymer composites of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)/CNW, was fabricated by solution casting using N,N-dimethylformamide (DMF) as the solvent. Homogeneous dispersion of the whiskers was achieved and the composites exhibited improved tensile strength and modulus and increased glass transition temperature. The melt processing (extrusion and injection molding) of PHBV/CNW composites was also attempted. Despite using polyethylene glycol (PEG) as a compatibilizer, CNW agglomerates formed during freeze-drying could not be broken and well dispersed by the extrusion process due to the large surface area and the polar nature of CNW. As a result, the melt processed PHBV/CNW composites exhibited decreased strength and constant glass transition temperature, a typical trend of microparticle filled polymer systems. MCC was also treated by high-speed mechanical homogenizer to reduce its particle size down to nanoscale range. The homogenized MCC (HMCC) was blended with PHBV by melt processing with the same conditions. The obtained composites were found to have similar properties as the melt-processed PHBV/CNW composites due to poor HMCC dispersion. To the best of our knowledge, PHBV/ CNW system has not been studied so far. The treatment of MCC with high-speed homogenizer has also not been reported. This study augments the research on CNW nanocomposites.

UR - http://www.scopus.com/inward/record.url?scp=57049184209&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=57049184209&partnerID=8YFLogxK

U2 - 10.1177/0021998308096327

DO - 10.1177/0021998308096327

M3 - Article

AN - SCOPUS:57049184209

VL - 42

SP - 2629

EP - 2645

JO - Journal of Composite Materials

JF - Journal of Composite Materials

SN - 0021-9983

IS - 24

ER -