Polystyrene nanocomposites produced by melt-compounding with polymer-coated magnesium carbonate nanoparticles

S. Siengchin, J. Karger-Kocsis

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Nanocomposites composed of PS and surface-coated MgCO3 were produced by melt-compounding in a laboratory kneader. The amphiphilic acrylate copolymer-coated MgCO3 particles were produced by inverse emulsion polymerization and added up to 5 wt.% into PS. The dispersion of the MgCO3 in PS was studied by SEM and AFM techniques, respectively, and discussed. The mechanical and thermo-mechanical properties of the nanocomposites were determined in short-time creep, uniaxial static tensile tests DMA and TGA. It was found that the lower the MgCO3 content, the finer the dispersion of the related particles. Incorporation of surface-coated nano-scaled MgCO3 in PS increased the resistance to creep, enhanced the tensile strength, E-modulus (stiffness), and HDT. However, the elongation at break of PS nanocomposites was reduced compared to the neat PS. The tensile strength and TGA behavior of the nanocomposites were markedly affected by the dispersion quality of the nanoparticles.

Original languageEnglish
Pages (from-to)145-152
Number of pages8
JournalJournal of Reinforced Plastics and Composites
Volume31
Issue number3
DOIs
Publication statusPublished - Feb 2012

Fingerprint

Polystyrenes
Magnesium
Carbonates
Nanocomposites
Polymers
Nanoparticles
Creep
Tensile strength
Emulsion polymerization
Dynamic mechanical analysis
Elongation
Copolymers
Stiffness
Mechanical properties
Scanning electron microscopy
magnesium carbonate

Keywords

  • magnesium carbonate
  • polymer nanocomposite
  • polystyrene
  • surface coating

ASJC Scopus subject areas

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

Cite this

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abstract = "Nanocomposites composed of PS and surface-coated MgCO3 were produced by melt-compounding in a laboratory kneader. The amphiphilic acrylate copolymer-coated MgCO3 particles were produced by inverse emulsion polymerization and added up to 5 wt.{\%} into PS. The dispersion of the MgCO3 in PS was studied by SEM and AFM techniques, respectively, and discussed. The mechanical and thermo-mechanical properties of the nanocomposites were determined in short-time creep, uniaxial static tensile tests DMA and TGA. It was found that the lower the MgCO3 content, the finer the dispersion of the related particles. Incorporation of surface-coated nano-scaled MgCO3 in PS increased the resistance to creep, enhanced the tensile strength, E-modulus (stiffness), and HDT. However, the elongation at break of PS nanocomposites was reduced compared to the neat PS. The tensile strength and TGA behavior of the nanocomposites were markedly affected by the dispersion quality of the nanoparticles.",
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N2 - Nanocomposites composed of PS and surface-coated MgCO3 were produced by melt-compounding in a laboratory kneader. The amphiphilic acrylate copolymer-coated MgCO3 particles were produced by inverse emulsion polymerization and added up to 5 wt.% into PS. The dispersion of the MgCO3 in PS was studied by SEM and AFM techniques, respectively, and discussed. The mechanical and thermo-mechanical properties of the nanocomposites were determined in short-time creep, uniaxial static tensile tests DMA and TGA. It was found that the lower the MgCO3 content, the finer the dispersion of the related particles. Incorporation of surface-coated nano-scaled MgCO3 in PS increased the resistance to creep, enhanced the tensile strength, E-modulus (stiffness), and HDT. However, the elongation at break of PS nanocomposites was reduced compared to the neat PS. The tensile strength and TGA behavior of the nanocomposites were markedly affected by the dispersion quality of the nanoparticles.

AB - Nanocomposites composed of PS and surface-coated MgCO3 were produced by melt-compounding in a laboratory kneader. The amphiphilic acrylate copolymer-coated MgCO3 particles were produced by inverse emulsion polymerization and added up to 5 wt.% into PS. The dispersion of the MgCO3 in PS was studied by SEM and AFM techniques, respectively, and discussed. The mechanical and thermo-mechanical properties of the nanocomposites were determined in short-time creep, uniaxial static tensile tests DMA and TGA. It was found that the lower the MgCO3 content, the finer the dispersion of the related particles. Incorporation of surface-coated nano-scaled MgCO3 in PS increased the resistance to creep, enhanced the tensile strength, E-modulus (stiffness), and HDT. However, the elongation at break of PS nanocomposites was reduced compared to the neat PS. The tensile strength and TGA behavior of the nanocomposites were markedly affected by the dispersion quality of the nanoparticles.

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