STUDY OF SINGLE WALLED CARBON NANOTUBE REINFORCED POLYMER COMPOSITES BY HANSEN SOLUBILITY PARAMETERS

Jing Ma

    Publikation: Bog/antologi/afhandling/rapportPh.d.-afhandlingForskning

    Resumé

    Single Walled carbon nanotubes (SWNTs) possess superior mechanical, thermal and electrical
    properties. The use of SWNTs as a reinforcement in polymer matrix is a hot research topic. However,
    the poor dispersion of SWNTs in polymers and the weak interface between the nanotubes and
    polymers are two major challenges which limit the use of SWNTs for reinforced polymer composites.
    The main objectives of this PhD work are to design, fabricate SWNTs/polymer composites and
    characterize the mechanical properties of the composite materials.
    This study uses the Hansen solubility parameters (HSP) to predict the chemical compatibility
    between polymer and SWNTs, and correlate the parameters with the dispersion of SWNTs and
    interfacial properties between SWNTs and polymers. Several different surface modifications on
    carbon nanotubes and different polymers are considered.
    The dispersion of SWNTs in solvents is evaluated by Dynamic Light scattering (DLS). The
    functional groups attached to SWNTs and degree of functionalization, and also the size of the
    nanotubes affect the HSP of the SWNTs. The extent by which functionalization take place is affected
    by the amount of defects on the nanotube surface.
    The strain transfer from polymer matrix to nanotube fillers is evaluated by Raman spectroscopy.
    The results are compared with the observation of the dispersion and Hansen Solubility Parameters. It
    is found that a good strain transfer can be obtained when the SWNTs are well dispersed and also when
    there is a good adhesion between the nanotube and the polymer. The effect of the viscoelastic
    properties of polymers on the strain transfer is also discussed.
    The mechanical properties of the polymers filled with SWNTs are compared with the neat
    polymer. It is observed that in all the studied cases there is no obvious reinforcement of the polymer
    by the addition of SWNTs. Existence of agglomerates, voids, and the lower glass transition
    temperature of epoxy resin, may give the negative effect on the mechanical properties of
    nanocomposite materials.
    In the design aspect of the composite material, HSP could help match SWNTs modifications and
    polymers, as well as choose the solvent used for the preparation of the composite material, which
    could meet the requirement for good dispersion.
    OriginalsprogEngelsk
    ForlagDepartment of Mechanical and Manufacturing Engineering, Aalborg University
    Antal sider130
    ISBN (Trykt)87-91464-46-3
    StatusUdgivet - 2014

    Citer dette

    Ma, J. (2014). STUDY OF SINGLE WALLED CARBON NANOTUBE REINFORCED POLYMER COMPOSITES BY HANSEN SOLUBILITY PARAMETERS. Department of Mechanical and Manufacturing Engineering, Aalborg University.
    Ma, Jing. / STUDY OF SINGLE WALLED CARBON NANOTUBE REINFORCED POLYMER COMPOSITES BY HANSEN SOLUBILITY PARAMETERS. Department of Mechanical and Manufacturing Engineering, Aalborg University, 2014. 130 s.
    @phdthesis{a798ce9f7aaa4dcabb4367455895172c,
    title = "STUDY OF SINGLE WALLED CARBON NANOTUBE REINFORCED POLYMER COMPOSITES BY HANSEN SOLUBILITY PARAMETERS",
    abstract = "Single Walled carbon nanotubes (SWNTs) possess superior mechanical, thermal and electricalproperties. The use of SWNTs as a reinforcement in polymer matrix is a hot research topic. However,the poor dispersion of SWNTs in polymers and the weak interface between the nanotubes andpolymers are two major challenges which limit the use of SWNTs for reinforced polymer composites.The main objectives of this PhD work are to design, fabricate SWNTs/polymer composites andcharacterize the mechanical properties of the composite materials.This study uses the Hansen solubility parameters (HSP) to predict the chemical compatibilitybetween polymer and SWNTs, and correlate the parameters with the dispersion of SWNTs andinterfacial properties between SWNTs and polymers. Several different surface modifications oncarbon nanotubes and different polymers are considered.The dispersion of SWNTs in solvents is evaluated by Dynamic Light scattering (DLS). Thefunctional groups attached to SWNTs and degree of functionalization, and also the size of thenanotubes affect the HSP of the SWNTs. The extent by which functionalization take place is affectedby the amount of defects on the nanotube surface.The strain transfer from polymer matrix to nanotube fillers is evaluated by Raman spectroscopy.The results are compared with the observation of the dispersion and Hansen Solubility Parameters. Itis found that a good strain transfer can be obtained when the SWNTs are well dispersed and also whenthere is a good adhesion between the nanotube and the polymer. The effect of the viscoelasticproperties of polymers on the strain transfer is also discussed.The mechanical properties of the polymers filled with SWNTs are compared with the neatpolymer. It is observed that in all the studied cases there is no obvious reinforcement of the polymerby the addition of SWNTs. Existence of agglomerates, voids, and the lower glass transitiontemperature of epoxy resin, may give the negative effect on the mechanical properties ofnanocomposite materials.In the design aspect of the composite material, HSP could help match SWNTs modifications andpolymers, as well as choose the solvent used for the preparation of the composite material, whichcould meet the requirement for good dispersion.",
    author = "Jing Ma",
    year = "2014",
    language = "English",
    isbn = "87-91464-46-3",
    publisher = "Department of Mechanical and Manufacturing Engineering, Aalborg University",

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    Ma, J 2014, STUDY OF SINGLE WALLED CARBON NANOTUBE REINFORCED POLYMER COMPOSITES BY HANSEN SOLUBILITY PARAMETERS. Department of Mechanical and Manufacturing Engineering, Aalborg University.

    STUDY OF SINGLE WALLED CARBON NANOTUBE REINFORCED POLYMER COMPOSITES BY HANSEN SOLUBILITY PARAMETERS. / Ma, Jing.

    Department of Mechanical and Manufacturing Engineering, Aalborg University, 2014. 130 s.

    Publikation: Bog/antologi/afhandling/rapportPh.d.-afhandlingForskning

    TY - BOOK

    T1 - STUDY OF SINGLE WALLED CARBON NANOTUBE REINFORCED POLYMER COMPOSITES BY HANSEN SOLUBILITY PARAMETERS

    AU - Ma, Jing

    PY - 2014

    Y1 - 2014

    N2 - Single Walled carbon nanotubes (SWNTs) possess superior mechanical, thermal and electricalproperties. The use of SWNTs as a reinforcement in polymer matrix is a hot research topic. However,the poor dispersion of SWNTs in polymers and the weak interface between the nanotubes andpolymers are two major challenges which limit the use of SWNTs for reinforced polymer composites.The main objectives of this PhD work are to design, fabricate SWNTs/polymer composites andcharacterize the mechanical properties of the composite materials.This study uses the Hansen solubility parameters (HSP) to predict the chemical compatibilitybetween polymer and SWNTs, and correlate the parameters with the dispersion of SWNTs andinterfacial properties between SWNTs and polymers. Several different surface modifications oncarbon nanotubes and different polymers are considered.The dispersion of SWNTs in solvents is evaluated by Dynamic Light scattering (DLS). Thefunctional groups attached to SWNTs and degree of functionalization, and also the size of thenanotubes affect the HSP of the SWNTs. The extent by which functionalization take place is affectedby the amount of defects on the nanotube surface.The strain transfer from polymer matrix to nanotube fillers is evaluated by Raman spectroscopy.The results are compared with the observation of the dispersion and Hansen Solubility Parameters. Itis found that a good strain transfer can be obtained when the SWNTs are well dispersed and also whenthere is a good adhesion between the nanotube and the polymer. The effect of the viscoelasticproperties of polymers on the strain transfer is also discussed.The mechanical properties of the polymers filled with SWNTs are compared with the neatpolymer. It is observed that in all the studied cases there is no obvious reinforcement of the polymerby the addition of SWNTs. Existence of agglomerates, voids, and the lower glass transitiontemperature of epoxy resin, may give the negative effect on the mechanical properties ofnanocomposite materials.In the design aspect of the composite material, HSP could help match SWNTs modifications andpolymers, as well as choose the solvent used for the preparation of the composite material, whichcould meet the requirement for good dispersion.

    AB - Single Walled carbon nanotubes (SWNTs) possess superior mechanical, thermal and electricalproperties. The use of SWNTs as a reinforcement in polymer matrix is a hot research topic. However,the poor dispersion of SWNTs in polymers and the weak interface between the nanotubes andpolymers are two major challenges which limit the use of SWNTs for reinforced polymer composites.The main objectives of this PhD work are to design, fabricate SWNTs/polymer composites andcharacterize the mechanical properties of the composite materials.This study uses the Hansen solubility parameters (HSP) to predict the chemical compatibilitybetween polymer and SWNTs, and correlate the parameters with the dispersion of SWNTs andinterfacial properties between SWNTs and polymers. Several different surface modifications oncarbon nanotubes and different polymers are considered.The dispersion of SWNTs in solvents is evaluated by Dynamic Light scattering (DLS). Thefunctional groups attached to SWNTs and degree of functionalization, and also the size of thenanotubes affect the HSP of the SWNTs. The extent by which functionalization take place is affectedby the amount of defects on the nanotube surface.The strain transfer from polymer matrix to nanotube fillers is evaluated by Raman spectroscopy.The results are compared with the observation of the dispersion and Hansen Solubility Parameters. Itis found that a good strain transfer can be obtained when the SWNTs are well dispersed and also whenthere is a good adhesion between the nanotube and the polymer. The effect of the viscoelasticproperties of polymers on the strain transfer is also discussed.The mechanical properties of the polymers filled with SWNTs are compared with the neatpolymer. It is observed that in all the studied cases there is no obvious reinforcement of the polymerby the addition of SWNTs. Existence of agglomerates, voids, and the lower glass transitiontemperature of epoxy resin, may give the negative effect on the mechanical properties ofnanocomposite materials.In the design aspect of the composite material, HSP could help match SWNTs modifications andpolymers, as well as choose the solvent used for the preparation of the composite material, whichcould meet the requirement for good dispersion.

    M3 - Ph.D. thesis

    SN - 87-91464-46-3

    BT - STUDY OF SINGLE WALLED CARBON NANOTUBE REINFORCED POLYMER COMPOSITES BY HANSEN SOLUBILITY PARAMETERS

    PB - Department of Mechanical and Manufacturing Engineering, Aalborg University

    ER -

    Ma J. STUDY OF SINGLE WALLED CARBON NANOTUBE REINFORCED POLYMER COMPOSITES BY HANSEN SOLUBILITY PARAMETERS. Department of Mechanical and Manufacturing Engineering, Aalborg University, 2014. 130 s.