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P A Mahanwar - One of the best experts on this subject based on the ideXlab platform.

  • Effect of Methyl Methacrylate – Acrylonitrile-Butadiene–Styrene (MABS) on the Mechanical and Thermal Properties of Poly (Methyl Methacrylate) (PMMA)-Fly Ash Cenospheres (FAC) Filled Composites
    2016
    Co-Authors: M B Kulkarni, P A Mahanwar
    Abstract:

    With the advent of plastics and the wide range of fillers that are available have made Modifications as precise as the tailored resins themselves. To modify the properties of polymer either by using fillers or by preparation of polymer blends gives rise to new materials with tailored properties. More complex, three-component systems, obtained by the addition of polymeric modifier to polymer filled composites may be of interest. Use of Fly ash cenospheres is very attractive because it is inexpensive and its use can reduce the environmental pollution to a significant extent. In the present study, Poly (Methyl Methacrylate) (PMMA)-Fly ash cenospheres composites were prepared using extrusion followed by Injection molding. The effect of Matrix Modification with Methyl methacrylate – acrylonitrile-butadiene–styrene (MABS) on the performance of PMMA- Fly ash cenospheres compositions was also, studied. It was found that with the addition of Fly ash cenospheres particulate as filler in PMMA showed marginal reduction in Tensile Strength, % Elongation and Impact strength and improvement in Flexura

  • effect of methyl methacrylate acrylonitrile butadiene styrene mabs on the mechanical and thermal properties of poly methyl methacrylate pmma fly ash cenospheres fac filled composites
    Journal of Minerals and Materials Characterization and Engineering, 2012
    Co-Authors: M B Kulkarni, P A Mahanwar
    Abstract:

    With the advent of plastics and the wide range of fillers that are available have made Modifications as precise as the tailored resins themselves. To modify the properties of polymer either by using fillers or by preparation of polymer blends gives rise to new materials with tailored properties. More complex, three-component systems, obtained by the addition of polymeric modifier to polymer filled composites may be of interest. Use of Fly ash cenospheres is very attractive because it is inexpensive and its use can reduce the environmental pollution to a significant extent. In the present study, Poly (Methyl Methacrylate) (PMMA)-Fly ash cenospheres composites were prepared using extrusion followed by Injection molding. The effect of Matrix Modification with Methyl methacrylate– acrylonitrile -butadiene–styrene (MABS) on the performance of PMMA- Fly ash cenospheres compositions was also, studied. It was found that with the addition of Fly ash cenospheres particulate as filler in PMMA showed marginal reduction in Tensile Strength, % Elongation and Impact strength and improvement in Flexural Strength, Heat Deflection Temperature and Vicat Softening Point. Compared with PMMA-cenospheres composites, the notched Impact Strength of the PMMA/MABS/cenospheres composites showed marginal enhancement in values at higher loading of cenospheres. The optimum performances in mechanical and thermal properties were obtained when the ratio of MABS to cenospheres was 1:2.

Qingping Feng - One of the best experts on this subject based on the ideXlab platform.

  • enhancement in mode ii interlaminar fracture toughness at cryogenic temperature of glass fiber epoxy composites through Matrix Modification by carbon nanotubes and n butyl glycidyl ether
    Journal of Nanomaterials, 2015
    Co-Authors: Yu Liu, Qingping Feng, Hongmei Xiao
    Abstract:

    A typical diglycidyl ether of bisphenol-F (DGEBF)/diethyl toluene diamine (DETD) epoxy system modified by multiwalled carbon nanotubes (MWCNTs) and a reactive aliphatic diluent named n-butyl glycidyl ether (BGE) was used as the Matrix for glass fiber composites. The glass fiber (GF) reinforced composites based on the unmodified and modified epoxy matrices were prepared by the hand lay-up hot-press process. Mode II interlaminar fracture toughness at both room temperature (RT) and cryogenic temperature (77K) of the GF reinforced epoxy composites was investigated to examine the effect of the Matrix Modification. The result showed that the introduction of MWCNTs and BGE at their previously reported optimal contents led to the remarkable enhancement in mode II interlaminar fracture toughness of the composites. Namely, the 22.9% enhancement at RT and the 31.4% enhancement at 77K were observed for mode II interlaminar fracture toughness of the fiber composite based on the optimally modified epoxy Matrix by MWCNTs and BGE compared to the unmodified case.

  • synergistic effect of carbon nanotubes and n butyl glycidyl ether on Matrix Modification for improvement of tensile performance of glass fiber epoxy composites
    Composites Part A-applied Science and Manufacturing, 2014
    Co-Authors: Yu Liu, Hongmei Xiao, Qingping Feng
    Abstract:

    Abstract In this work, an epoxy resin was modified by stiff multi-walled carbon nanotubes (MWCNTs) and soft n-butyl glycidyl ether (BGE) and the modified epoxy resins were employed as the matrices for improvement of the tensile performance of glass fiber reinforced composites. The results indicated that the simultaneous addition of MWCNTs and BGE led to the greatest enhancements in the composite strength and modulus, demonstrating that their simultaneous introduction yielded a synergistic effect on the Matrix Modification for the improvement of the tensile performance of the GF/epoxy composites. The scanning electron microscope observations showed that the modified epoxy resins were substantially coated on the surfaces of GFs while the un-modified Matrix was lightly attached on the GFs. The enhancements in the composite tensile performance were attributed to two aspects of enhanced GF strength/modulus and improved interfacial adhesion for the modified Matrix compared to the un-modified case.

  • role of Matrix Modification on interlaminar shear strength of glass fibre epoxy composites
    Composites Part B-engineering, 2012
    Co-Authors: Jiaoping Yang, Hongmei Xiao, Shaoyun Fu, Chengbing Qu, Qingping Feng, Yasuhide Shindo
    Abstract:

    Abstract Interlaminar shear properties of fibre reinforced polymer composites are important in many structural applications. Matrix Modification is an effective way to improve the composite interlaminar shear properties. In this paper, diglycidyl ether of bisphenol-F/diethyl toluene diamine system is used as the starting epoxy Matrix. Multi-walled carbon nanotubes (MWCNTs) and reactive aliphatic diluent named n -butyl glycidyl ether (BGE) are employed to modify the epoxy Matrix. Unmodified and modified epoxy resins are used for fabricating glass fibre reinforced composites by a hot-press process. The interlaminar shear strength (ILSS) of the glass fibre reinforced composites is investigated and the results indicate that introduction of MWCNT and BGE obviously enhances the ILSS. In particular, the simultaneous addition of 0.5 wt.% MWCNTs and 10 phr BGE leads to the 25.4% increase in the ILSS for the glass fibre reinforced composite. The fracture surfaces of the fibre reinforced composites are examined by scanning electron microscopy and the micrographs are employed to explain the ILSS results.

M B Kulkarni - One of the best experts on this subject based on the ideXlab platform.

  • Effect of Methyl Methacrylate – Acrylonitrile-Butadiene–Styrene (MABS) on the Mechanical and Thermal Properties of Poly (Methyl Methacrylate) (PMMA)-Fly Ash Cenospheres (FAC) Filled Composites
    2016
    Co-Authors: M B Kulkarni, P A Mahanwar
    Abstract:

    With the advent of plastics and the wide range of fillers that are available have made Modifications as precise as the tailored resins themselves. To modify the properties of polymer either by using fillers or by preparation of polymer blends gives rise to new materials with tailored properties. More complex, three-component systems, obtained by the addition of polymeric modifier to polymer filled composites may be of interest. Use of Fly ash cenospheres is very attractive because it is inexpensive and its use can reduce the environmental pollution to a significant extent. In the present study, Poly (Methyl Methacrylate) (PMMA)-Fly ash cenospheres composites were prepared using extrusion followed by Injection molding. The effect of Matrix Modification with Methyl methacrylate – acrylonitrile-butadiene–styrene (MABS) on the performance of PMMA- Fly ash cenospheres compositions was also, studied. It was found that with the addition of Fly ash cenospheres particulate as filler in PMMA showed marginal reduction in Tensile Strength, % Elongation and Impact strength and improvement in Flexura

  • effect of methyl methacrylate acrylonitrile butadiene styrene mabs on the mechanical and thermal properties of poly methyl methacrylate pmma fly ash cenospheres fac filled composites
    Journal of Minerals and Materials Characterization and Engineering, 2012
    Co-Authors: M B Kulkarni, P A Mahanwar
    Abstract:

    With the advent of plastics and the wide range of fillers that are available have made Modifications as precise as the tailored resins themselves. To modify the properties of polymer either by using fillers or by preparation of polymer blends gives rise to new materials with tailored properties. More complex, three-component systems, obtained by the addition of polymeric modifier to polymer filled composites may be of interest. Use of Fly ash cenospheres is very attractive because it is inexpensive and its use can reduce the environmental pollution to a significant extent. In the present study, Poly (Methyl Methacrylate) (PMMA)-Fly ash cenospheres composites were prepared using extrusion followed by Injection molding. The effect of Matrix Modification with Methyl methacrylate– acrylonitrile -butadiene–styrene (MABS) on the performance of PMMA- Fly ash cenospheres compositions was also, studied. It was found that with the addition of Fly ash cenospheres particulate as filler in PMMA showed marginal reduction in Tensile Strength, % Elongation and Impact strength and improvement in Flexural Strength, Heat Deflection Temperature and Vicat Softening Point. Compared with PMMA-cenospheres composites, the notched Impact Strength of the PMMA/MABS/cenospheres composites showed marginal enhancement in values at higher loading of cenospheres. The optimum performances in mechanical and thermal properties were obtained when the ratio of MABS to cenospheres was 1:2.

I Mondragon - One of the best experts on this subject based on the ideXlab platform.

  • mechanical properties of short flax fibre bundle poly e caprolactone composites influence of Matrix Modification and fibre content
    Carbohydrate Polymers, 2006
    Co-Authors: A Arbelaiz, Beatriz Fernandez, A Valea, I Mondragon
    Abstract:

    Abstract Composites were prepared by mixing biodegradable poly(e-caprolactone) thermoplastic (PCL) with short flax fibre bundles. In order to improve fibre/Matrix adhesion, poly(e-caprolactone)- g -maleic anhydride copolymer (PCL- g -MA) compatibilizer was prepared in an internal mixer. The grafting reaction of maleic anhydride (MA) onto PCL polymer was carried out in presence of dicumyl peroxide as initiator. Mechanical properties were analysed as a function of compatibilizer concentration and fibre amount. In addition, thermal properties of flax/PCL and flax/PCL- g -MA composites were also examined by thermogravimetric (TG) analysis. Composites fabricated with flax fibre bundles and PCL- g -MA Matrix showed the highest tensile and flexural strength. Scanning electron microscopy (SEM) of fractured surfaces confirmed the adhesion improvement between flax fibre bundles and PCL- g -MA Matrix. Results obtained by thermogravimetric analysis showed that fibre addition and Matrix Modification slightly reduced the thermal stability of composites. The correlation between the experimental mechanical properties of short flax fibre bundle reinforced PCL composites with values calculated by various empirical models has also been analysed. For composites based on PCL- g -MA Matrix, a good agreement was found between empirical model and experimental values for all fibre contents. However, for composites based on PCL Matrix a good agreement only existed until 20 wt% flax fibre content, and beyond this value, experimental strength felt well below predictions.

  • mechanical properties of flax fibre polypropylene composites influence of fibre Matrix Modification and glass fibre hybridization
    Composites Part A-applied Science and Manufacturing, 2005
    Co-Authors: A Arbelaiz, Beatriz Fernandez, Rodrigo Llanoponte, A Valea, Guillermo Cantero, I Mondragon
    Abstract:

    Abstract The effect of fibre treatments and Matrix Modification on mechanical properties of flax fibre bundle/polypropylene composites was investigated. Treatments using chemicals such as maleic anhydride, vinyltrimethoxy silane, maleic anhydride-polypropylene copolymer and also fibre alkalization were carried out in order to modify the interfacial bonding between fibre bundles and polymeric Matrix. Composites were produced by employing two compounding ways: internal mixing and extrusion. Mechanical behaviour of both flax fibre bundle and hybrid glass/flax fibre bundle composites was studied. Fracture surfaces were investigated by scanning electron microscopy. Results suggest that Matrix Modification led to better mechanical performance than fibre surface Modification. A relevant fact is that silanes or MA grafted onto PP Matrix lead to mechanical properties of composites even better than those for MAPP Modification, and close to those for glass fibre/PP.

Hongmei Xiao - One of the best experts on this subject based on the ideXlab platform.

  • enhancement in mode ii interlaminar fracture toughness at cryogenic temperature of glass fiber epoxy composites through Matrix Modification by carbon nanotubes and n butyl glycidyl ether
    Journal of Nanomaterials, 2015
    Co-Authors: Yu Liu, Qingping Feng, Hongmei Xiao
    Abstract:

    A typical diglycidyl ether of bisphenol-F (DGEBF)/diethyl toluene diamine (DETD) epoxy system modified by multiwalled carbon nanotubes (MWCNTs) and a reactive aliphatic diluent named n-butyl glycidyl ether (BGE) was used as the Matrix for glass fiber composites. The glass fiber (GF) reinforced composites based on the unmodified and modified epoxy matrices were prepared by the hand lay-up hot-press process. Mode II interlaminar fracture toughness at both room temperature (RT) and cryogenic temperature (77K) of the GF reinforced epoxy composites was investigated to examine the effect of the Matrix Modification. The result showed that the introduction of MWCNTs and BGE at their previously reported optimal contents led to the remarkable enhancement in mode II interlaminar fracture toughness of the composites. Namely, the 22.9% enhancement at RT and the 31.4% enhancement at 77K were observed for mode II interlaminar fracture toughness of the fiber composite based on the optimally modified epoxy Matrix by MWCNTs and BGE compared to the unmodified case.

  • synergistic effect of carbon nanotubes and n butyl glycidyl ether on Matrix Modification for improvement of tensile performance of glass fiber epoxy composites
    Composites Part A-applied Science and Manufacturing, 2014
    Co-Authors: Yu Liu, Hongmei Xiao, Qingping Feng
    Abstract:

    Abstract In this work, an epoxy resin was modified by stiff multi-walled carbon nanotubes (MWCNTs) and soft n-butyl glycidyl ether (BGE) and the modified epoxy resins were employed as the matrices for improvement of the tensile performance of glass fiber reinforced composites. The results indicated that the simultaneous addition of MWCNTs and BGE led to the greatest enhancements in the composite strength and modulus, demonstrating that their simultaneous introduction yielded a synergistic effect on the Matrix Modification for the improvement of the tensile performance of the GF/epoxy composites. The scanning electron microscope observations showed that the modified epoxy resins were substantially coated on the surfaces of GFs while the un-modified Matrix was lightly attached on the GFs. The enhancements in the composite tensile performance were attributed to two aspects of enhanced GF strength/modulus and improved interfacial adhesion for the modified Matrix compared to the un-modified case.

  • role of Matrix Modification on interlaminar shear strength of glass fibre epoxy composites
    Composites Part B-engineering, 2012
    Co-Authors: Jiaoping Yang, Hongmei Xiao, Shaoyun Fu, Chengbing Qu, Qingping Feng, Yasuhide Shindo
    Abstract:

    Abstract Interlaminar shear properties of fibre reinforced polymer composites are important in many structural applications. Matrix Modification is an effective way to improve the composite interlaminar shear properties. In this paper, diglycidyl ether of bisphenol-F/diethyl toluene diamine system is used as the starting epoxy Matrix. Multi-walled carbon nanotubes (MWCNTs) and reactive aliphatic diluent named n -butyl glycidyl ether (BGE) are employed to modify the epoxy Matrix. Unmodified and modified epoxy resins are used for fabricating glass fibre reinforced composites by a hot-press process. The interlaminar shear strength (ILSS) of the glass fibre reinforced composites is investigated and the results indicate that introduction of MWCNT and BGE obviously enhances the ILSS. In particular, the simultaneous addition of 0.5 wt.% MWCNTs and 10 phr BGE leads to the 25.4% increase in the ILSS for the glass fibre reinforced composite. The fracture surfaces of the fibre reinforced composites are examined by scanning electron microscopy and the micrographs are employed to explain the ILSS results.