Exfoliation of clay layers in polypropylene matrix using potassium succinate-g-polypropylene as compatibilizer

Mallikarjuna Shroff, Rama ; Ramesh, Neppalli ; Ramesh, Chellaswamy ; Sivaram, Swaminathan (2010) Exfoliation of clay layers in polypropylene matrix using potassium succinate-g-polypropylene as compatibilizer Composites Science and Technology, 70 (10). pp. 1550-1556. ISSN 0266-3538

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/j.compscitech.2010.05.021

Abstract

The efficiency of potassium succinate-g-polypropylene (KPPSA) as compatibilizer for the dispersion of clay in a high molecular weight polypropylene during melt mixing for the preparation of nanocomposites was evaluated and compared with maleic anhydride-g-polypropylene (PPMA). Nanocomposites were prepared by direct melt mixing and by masterbatch methods and the structure obtained was characterized by WAXD and TEM. The exfoliation and better dispersion of the organoclay was observed with KPPSA than PPMA. The dispersion of clay was found to be dependent on the method of preparation, type and the amount of compatibilizer used. The dispersion was better when the nanocomposites were prepared by two step masterbatch route than the single step direct mixing method. Flexural moduli and crystallization behavior were studied and correlated with the dispersion of organoclay in the PP matrix.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:A. Nano Composites; A. Nanoclays; B. Mechanical Property; D. Differential Scanning Calorimetry; Polypropylene
ID Code:48564
Deposited On:14 Jul 2011 14:22
Last Modified:14 Jul 2011 14:22

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