Mechanical Properties of Polypropylene and Polyethylene Blends

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Watcharin Yutung
Prince of Songkla University, Pattani Campus, Pattani 94001
Thoranit Navarat
Prince of Songkla University, Pattani Campus, Pattani 94001
Sombat Puttajukr
Prince of Songkla University, Pattani Campus, Pattani 94001
Manus Seadan
Silpakorn University, Sanarm Chand Palace Campus, Nakhon Pathom 73000

Abstract

Polypropylene (PP) and polyethylene (PE) are the most common commercial thermoplastics whichare used in a large quantity, because of their good mechanical properties and low cost. However, theblends of PP and PE are normally incompatible and give poor mechanical properties. A suitable way tosolve this problem is to created in situ copolymer at interface. A system of the reactive extrusion blendswas proposed. The system is peroxide initiating free radical reaction in combination with oligomer, monomerand EPDM. The reactive blend was taken place in single screw extruder. Mechanical properties andphase morphologies were studied. It showed good mechanical properties and very fine morphologies.

Keywords : Polypropylene / Polyethylene / Reactive Extrusion / Reactive Blends

Article Details

Issue
Vol. 31 No. 2 (2008): April - June
Section
Original Articles
Author Biographies

Watcharin Yutung, Prince of Songkla University, Pattani Campus, Pattani 94001

Under-graduated Student, Polymer Physics Program.

Thoranit Navarat, Prince of Songkla University, Pattani Campus, Pattani 94001

Lecturer, Polymer Physics Program, School of Science and Technology.

Sombat Puttajukr, Prince of Songkla University, Pattani Campus, Pattani 94001

Associated Professor, Polymer Physics Program, School of Science and Technology.

Manus Seadan, Silpakorn University, Sanarm Chand Palace Campus, Nakhon Pathom 73000

Associated Professor, Department of Physics, Faculty of Science.