Health & Environmental Research Online (HERO)


Print Feedback Export to File
6600744 
Journal Article 
Synthesis of a polypropylene-based compatibilizer by a radiation grafting and an evaluation of PP/WP composite properties 
Jung, CHee; Choi, JaeHak; Kang, PH; Nho, YC; , 
2007 
Yes 
Journal of Industrial and Engineering Chemistry
ISSN: 1226-086X 
ELSEVIER SCIENCE INC 
NEW YORK 
1131-1136 
WOS:000252451500013 
The polypropylene-based compatibilizers, polypropylene-g-maleic anhydride (PP-MAH) and polypropylene-g-(styrene-co-maleic anhydride) (PP-St/MAH) were successfully prepared by a high energy irradiation method. The grafting degree of MAH onto PP increased with an increasing dose and MAH content. In addition, the grafting degree of MAH onto PP was enhanced in the presence of styrene as a comonomer. The compatibilizing effect of the newly-prepared graft copolymers on the polypropylene/wood powder (PP/WP) composites was studied by means of the UTM, SEM and DSC techniques. It was observed that the addition of PP-St/MAH enhanced the mechanical properties of the PP/WP composites and increased the crystallization temperature of the PP phase. These results verify that an improved compatibility and interfacial adhesion between the PP matrix and wood powder contributes to an improvement of the mechanical properties.