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Development of poly(vinyl chloride)/montmorillonite nanocomposites using chelating agents

Nazdaneh Yarahmadi (Institutionen för kemi- och bioteknik) ; I. Jakubowicz ; Thomas Hjertberg (Institutionen för kemi- och bioteknik, Polymerteknologi)
Polymer Degradation and Stability (0141-3910). Vol. 95 (2010), 2, p. 132-137.
[Artikel, refereegranskad vetenskaplig]

Different chelating agents such as poly(ethylene glycol), propylene glycol monooctadecanoate and palm oil were used for modification of the surface-treated montmorillonite (MMT). The work also included the development of a technique for mixing chelating agents with MMTs using different methods and different proportions of MMT/chelating agent/ethanol. Evaluation of the result of mixing was performed by thermogravimetric analysis, X-ray diffraction and high-resolution scanning electron microscopy (HR-SEM). The results showed that the chelating agents used were intercalated in MMT, increasing the interlayer spacing. The OMMT was used in the manufacture of composites with rigid PVC using a microcompounder. The master batch concept turned out to be promising in terms of dispersion and delamination of clay, as observed in HR-SEM photographs. However, despite good dispersion and exfoliation of MMT, poor compatibility between clay platelets and PVC matrix remains to be solved to enable full exploitation of its engineering potential. Despite this drawback, good thermal stability and mechanical properties have already been achieved.

Nyckelord: Polymer nanocomposite, Montmorillonite, PVC, Thermal stability, Dispersion, Compatibility, clay nanocomposites, intercalation



Denna post skapades 2010-03-09. Senast ändrad 2016-08-18.
CPL Pubid: 117575

 

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Institutioner (Chalmers)

Institutionen för kemi- och bioteknik (2005-2014)
Institutionen för kemi- och bioteknik, Polymerteknologi (2005-2014)

Ämnesområden

Polymerkemi

Chalmers infrastruktur