Mechanical Properties of Biodegradable Polyhydroxyalkanoates/Single Wall Carbon Nanotube Nanocomposite Films

Yun, Seok Il; Gadd, G. E.; Latella, Bruno A.; Lo, Victor; Russell, Robert A.; Holden, Peter J.

doi:10.1007/s00289-008-0936-4

Cited by 71 publications

(39 citation statements)

References 25 publications

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“…Recently, PHB/single walled carbon nanotubes (SWCNTs) nanocomposites have been prepared by solution casting method using chloroform as cosolvent. 17 The experimental results showed that the crystalline size substantially decreased for the PHB/SWCNTs nanocomposite with a 1% weight fraction of SWCNTs as compared to that of neat PHB; moreover, the polymer nanocomposite films showed an increase in hardness and Young's modulus with increasing SWCNTs contents. …”

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confidence: 84%

“…17 The experimental results showed that the crystalline size substantially decreased for the PHB/SWCNTs nanocomposite with a 1% weight fraction of SWCNTs as compared to that of neat PHB; moreover, the polymer nanocomposite films showed an increase in hardness and Young's modulus with increasing SWCNTs contents. 17 To the best of our knowledge, biodegradable PHB/multiwalled carbon nanotubes (MWNTs) nanocomposites have not been reported so far in the literature. We have recently prepared PHB/MWNTs nanocomposites at different MWNTs loadings by solution casting method and studied the effects of the presence of MWNTs and their loadings on the subsequent multiple melting behavior of PHB in the nanocomposites crystallized non-isothermally from the melt.…”

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confidence: 84%

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Isothermal Melt Crystallization Kinetics Study of Biodegradable Poly(3-hydroxybutyrate)/Multiwalled Carbon Nanotubes Nanocomposites

Qiu

2009

Polym. J.

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Poly(3-hydroxybutyrate) (PHB) is a truly biodegradable and highly biocompatible polymer; [1][2][3][4][5][6] however, wider application range of PHB has been limited because of its stiffness and brittleness problems. Moreover, its melting temperature is so close to the thermal decomposition temperature that PHB becomes thermally unstable during processing. Therefore, many attempts have been made to improve its mechanical and thermal properties, among which polymer blending is an easy and convenient way of achieving desirable combination of properties. Ha et al. and Di Lorenzo et al. have recently reviewed miscibility, properties and biodegradability of polymer blends containing PHB. 7,8Addition of nano-particles such as carbon nanotubes (CNTs) to form nanocomposites has provided another means to improve materials performances.9,10 CNTs possess unique mechanical, electrical and thermal properties that make it ideal candidates to substitute conventional nano-fillers in the fabrication of polymer nanocomposites. [11][12][13][14][15][16] It is noted that the strong interfacial adhesion between polymer chains and nanotubes is critically important to effectively maximize load transfer from the matrix to CNTs. Recently, PHB/single walled carbon nanotubes (SWCNTs) nanocomposites have been prepared by solution casting method using chloroform as cosolvent. 17 The experimental results showed that the crystalline size substantially decreased for the PHB/SWCNTs nanocomposite with a 1% weight fraction of SWCNTs as compared to that of neat PHB; moreover, the polymer nanocomposite films showed an increase in hardness and Young's modulus with increasing SWCNTs contents. 17To the best of our knowledge, biodegradable PHB/multiwalled carbon nanotubes (MWNTs) nanocomposites have not been reported so far in the literature. We have recently prepared PHB/MWNTs nanocomposites at different MWNTs loadings by solution casting method and studied the effects of the presence of MWNTs and their loadings on the subsequent multiple melting behavior of PHB in the nanocomposites crystallized non-isothermally from the melt. 18 In this note, we further studied the isothermal melt crystallization kinetics of neat PHB and the PHB/MWNTs nanocomposites for a better understanding of the influence of the presence of MWNTs and the loadings on the crystallization behavior of PHB in the PHB/MWNTs nanocomposites.

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confidence: 84%

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confidence: 84%

Isothermal Melt Crystallization Kinetics Study of Biodegradable Poly(3-hydroxybutyrate)/Multiwalled Carbon Nanotubes Nanocomposites

Qiu

2009

Polym. J.

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“…[7][8][9][10][11] The field of polymer nanocomposites with carbon nanomaterial has highly diversified; mainly carbon nanotubes (CNT) based polymer composites have been widely explored in many aspects in recent times. 12 Researchers have effectively utilized the advantages of CNT for the development of various composite systems from renewable resource-based polymeric materials; CNT reinforcement not only provides improvement in mechanical and thermal properties but also creates additional functional properties such as flame retardancy, conductive properties, and EMI shielding.…”

Section: Introductionmentioning

confidence: 99%

Multilayer films composed of conductive poly(3‐hydroxybutyrate)/carbon nanotubes bionanocomposites and a photoresponsive conducting polymer

Valentini

Fabbri

Messori

et al. 2014

J Polym Sci B Polym Phys

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In order to develop new electronic devices, it is necessary to find innovative solutions to the eco-sustainability problem of materials as substrates for circuits. We realized a photoresponsive device consisting of a semiconducting polymer film deposited onto optically semitransparent and conductive biodegradable poly(3-hydroxybutyrate) (PHB)/carbon nanotube (CNT) substrates. The experiments indicated that the PHB-CNT bionanocomposite substrate behaves as an optical window trapping electric charges produced by the photoexcitation of the semiconducting polymer. Such PHB-CNT functional substrates are expected to be attractive for eco-friendly electronics

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“…In PHA family, monomers can be combined in 150 different combinations to produce copolymers with different properties 28 . Mechanical properties of copolymers depends on the composition of the monomer units and may differ from hard crystalline thermoplastic polymer (e.g., PHB) to elastomeric ones, such as poly(3-hydroxyoctanoate) (PHO) 72,73 . Enhanced ratio of 3-hydroxybutanoic acid to 3-hydroxyvaleric acid leads to enhanced water permeability, melting point, tensile strength and glass transition temperature (T g ), but reduced impact resistance 74,75 .…”

Section: Copolymers Productionmentioning

confidence: 99%

Application of Poly(hydroxyalkanoate) In Food Packaging: Improvements by Nanotechnology

Khosravi‐Darani¹

2015

Chem.Biochem.Eng.Q.

124

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The environmental impact of plastic usage is of critical concern and too great to repair. A shift toward biodegradable food packaging is one option. The aim of this review paper is the study of the potential of biodegradable materials for food packaging. The main characteristics in relation to food usage can be narrowed down to mass transfer (gas and water vapor), thermal and mechanical properties. Among several kinds of biodegradable polymers, poly(hydroxyalkanoate) is one of the favorable candidates for food packaging due to its physical and mechanical properties, biodegradability, with low permeability for O 2 , H 2 O and CO 2 without residues of catalysts and water solubility. The main focus of this article is to address poly(hydroxyalkanoate) as a potential candidate for food packaging. The need of applying biobased polymers in food packaging is presented in the introduction of this study. We also describe the most common biopolymers providing a brief overview of classification and application. This is followed by an outline of biopolymer production and a main section in which the properties of poly(hydroxybutyrate)-based nanocomposites of greatest relevance to food packaging are discussed. Furthermore, several approaches for improvement of poly(hydroxybutyrate) properties are described and the role of nanotechnology to improve its mechanical properties is presented. Finally, the article concludes with a summary as well as some possible future trends.

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Mechanical Properties of Biodegradable Polyhydroxyalkanoates/Single Wall Carbon Nanotube Nanocomposite Films

Cited by 71 publications

References 25 publications

Isothermal Melt Crystallization Kinetics Study of Biodegradable Poly(3-hydroxybutyrate)/Multiwalled Carbon Nanotubes Nanocomposites

Isothermal Melt Crystallization Kinetics Study of Biodegradable Poly(3-hydroxybutyrate)/Multiwalled Carbon Nanotubes Nanocomposites

Multilayer films composed of conductive poly(3‐hydroxybutyrate)/carbon nanotubes bionanocomposites and a photoresponsive conducting polymer

Application of Poly(hydroxyalkanoate) In Food Packaging: Improvements by Nanotechnology

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