[논문]Preparation of PET Nanocomposites: Dispersion of Nanoparticles and Thermal Properties

Her, Ki-Young; Kim, Dae-Heum; Lim, Soon-Ho

Preparation of PET Nanocomposites: Dispersion of Nanoparticles and Thermal Properties 원문보기

International journal of precision engineering and manufacturing, v.9 no.4, 2008년, pp.71 - 73

Her, Ki-Young (Hybrid materials research center. Korea Institute of Science & Technology) , Kim, Dae-Heum (Department of Chemical Engineering, Kwangwoon University) , Lim, Soon-Ho (Hybrid materials research center. Korea Institute of Science & Technology)

Abstract ▼ AI-Helper

The development of polymer/inorganic nanocomposites has attracted a great deal of interest due to the improved hybrid properties derived from the two different components. Various nanoscale fillers have been used to enhance polymer mechanical and thermal properties, such as toughness, stiffness, and heat resistance. The effects of the filler on the final properties of the nanocomposites are highly dependent on the filler shape, particle size, aggregate size, surface characteristics, polymer/inorganic interactions, and degree of dispersion. In this paper, we describe the influence of different $CaCO_3$ dispersion methods on the thermal properties of polyethylene terephthalate (PET)/$CaCO_3$ composites: i.e., the adsorption of $CaCO_3$ on the modified PET surface, and the hydrophobic modification of the hydrophilic $CaCO_3$ surface. We prepared PET/$CaCO_3$ nanocomposites using a twin-screw extruder, and investigated their thermal properties and morphology.

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문제 정의

(PET). The aim of this study was to analyze the effects of different CaCO₃ dispersion methods on the thermal properties of PET/CaCOs nanocomposites.
This report deals with nanocomposites composed of calcium carbonate (CaCO₃) nanoparticles dispersed in polyethylene terephthalate (PET). The aim of this study was to analyze the effects of different CaCO₃ dispersion methods on the thermal properties of PET/CaCOs nanocomposites.

대상 데이터

The homo-polyester grade PET used in this study was supplied by Huvis (Seoul, Korea). The precipitated calcium carbonate (PCC) used in this study was supplied by NanoMaterials Technology (Singapore).

성능/효과

This difference in HDT was due to the different crystallinities of the composites. The DSC results suggested that NPCC-111 is more effective than NPCC-201 for improving the crystallinity.
The results of thermal analysis also showed that the PET/CaCO₃ nanocomposites had superior properties to those of pure PET. Table 1 shows the HDT of the PET/CaCO₃ nanocomposites.

참고문헌 (15)

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