Effect of PP-g-MAH compatibilizer content in polypropylene/nylon-6 blends

• Published in: Polymer bulletin (Berlin, Germany) Vol. 63; no. 1; pp. 147 - 157
• Main Authors: Shashidhara, G. M., Biswas, Devaraj, Shubhalaksmi Pai, B., Kadiyala, Ajay Kumar, Wasim Feroze, G. S., Ganesh, M.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer-Verlag 01.07.2009; Springer; Springer Nature B.V
• Subjects: Applied sciences; Characterization and Evaluation of Materials; Chemical modifications; Chemical reactions and properties; Chemistry; Chemistry and Materials Science; Compatibility; Compatibilizers; Complex Fluids and Microfluidics; Copolymers; Dispersion; Exact sciences and technology; Graft copolymers; Heat; Impact strength; Injection molding; Maleic anhydride; Mechanical properties; Modulus of rupture in bending; Nylon 6; Organic Chemistry; Organic polymers; Original Paper; Physical Chemistry; Physicochemistry of polymers; Polyamide resins; Polymer blends; Polymer Sciences; Polyolefins; Polypropylene; Soft and Granular Matter; Tensile strength; Twin screw extruders; India; Nylon 6; Mechanical properties; PP-g-MAH; Polypropylene; Compatiblization; Strengthening; Condensation reaction; Propylene polymer; Organic anhydride; Experimental study; Compatibilizer; Functional polymer; Heterogeneous mixture; Tensile strength; Propylene derivative copolymer; Amide 6 polymer; Chemical modification; Impact strength; Morphology; Aliphatic polymer; Concentration effect; Olefin polymer; Interface reaction
• ISSN: 0170-0839; 1436-2449
• DOI: 10.1007/s00289-009-0074-7

A method commonly used to induce compatibility between polyamides and polyolefins is by chemical modification of the polyolefins. This concept has been employed to produce compatibilized blend of nylon 6 (N6) and polypropylene copolymer (PPCP) by adding maleic anhydride grafted polypropylene (PP-g-MAH) as a third component. The blends of N6, PPCP and PP-g-MAH were prepared using a twin screw extruder. TEM of the blends revealed better dispersion and reduction in the size of the dispersed phase. In case of N6 rich blends, about 25% increase in tensile strength was observed with just three phb of PP-g-MAH. The maximum impact strength and flexural modulus were observed at around 30% PPCP. The incorporation of PP-g-MAH increased the flexural modulus of N6/PPCP blends significantly.