Nanocomposites formation through blending partially hydrolyzed cellulose and poly(lactic acid)

Boor Singh Lalia; Parakalan Krishnamachari; Raed Hashaikeh

doi:10.1166/jbmb.2013.1268

Nanocomposites formation through blending partially hydrolyzed cellulose and poly(lactic acid)

Boor Singh Lalia, Parakalan Krishnamachari, Raed Hashaikeh

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

A new process to make polymer composites with nanocrsytalline cellulose as reinforcing fillers was developed. Nanocomposites of poly(lactic acid) (PLA) were prepared via mixing cellulose soaked in 64% sulfuric acid with a solution of PLA dissolved in tetrahydrofuran (THF). The nanocomposites precipitated immediately upon mixing. The nanocomposites exhibited improved thermal and dynamic mechanical properties, with as much as three folds increase in storage modulus. TGA data revealed the resilient nature of the nanocomposites, having a residual weight of about 5% at 400 °C. SEM images revealed a highly porous morphology which can be ideal for tissue engineering applications. It was observed that the porosity of the PLA nanocomposites increased with the contents of cellulose. XRD data indicated enhanced crystallinity of PLA in the composite.

Original language	English (US)
Pages (from-to)	127-134
Number of pages	8
Journal	Journal of Biobased Materials and Bioenergy
Volume	7
Issue number	1
DOIs	https://doi.org/10.1166/jbmb.2013.1268
State	Published - Feb 2013

Keywords

Acid hydrolysis
Dynamic mechanical analysis
Nanocomposite
Nanocrystalline cellulose
Poly(lactic acid)

ASJC Scopus subject areas

Bioengineering
Biomaterials
Renewable Energy, Sustainability and the Environment

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10.1166/jbmb.2013.1268

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abstract = "A new process to make polymer composites with nanocrsytalline cellulose as reinforcing fillers was developed. Nanocomposites of poly(lactic acid) (PLA) were prepared via mixing cellulose soaked in 64% sulfuric acid with a solution of PLA dissolved in tetrahydrofuran (THF). The nanocomposites precipitated immediately upon mixing. The nanocomposites exhibited improved thermal and dynamic mechanical properties, with as much as three folds increase in storage modulus. TGA data revealed the resilient nature of the nanocomposites, having a residual weight of about 5% at 400 °C. SEM images revealed a highly porous morphology which can be ideal for tissue engineering applications. It was observed that the porosity of the PLA nanocomposites increased with the contents of cellulose. XRD data indicated enhanced crystallinity of PLA in the composite.",

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author = "Lalia, {Boor Singh} and Parakalan Krishnamachari and Raed Hashaikeh",

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AU - Krishnamachari, Parakalan

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KW - Poly(lactic acid)

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Nanocomposites formation through blending partially hydrolyzed cellulose and poly(lactic acid)

Abstract

Keywords

ASJC Scopus subject areas

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