EFFECT OF SMALL ADDITIVES OF POLYAMIDE MODIFIED BY POLYVINYLPYRROLIDONE AND MONTMORILLONITE ON POLYPROPYLENE TECHNOLOGICAL PROPERTIES AND HEAT RESISTANCE

Abstract

The effect of small polyamide additives modified with polyvinylpyrrolidone and montmorillonite on polypropylene technological properties and heat resistance has been researched in the work. It has been determined that the melt flow index of the obtained composites increases by more than 2 times in comparing with pure PP. It has been shown that adding to polypropylene a small amount of polyamide which is modified by montmorillonite-polyvinylprolidone mixture significantly increases the heat resistance of the material. The displacement of the beginning of thermal-oxidation destruction and burning samples into the range of higher temperatures on 114-123 oC dependently on the modified polyamide content has been observed.

Keywords

• Nanocomposite
• montmorillonite
• modification
• polypropylene
• thermal analysis
• mixture
• polyvinylpyrrolidone
• polyamide