Compatibilisation of polypropylene and poly(butylene terephthalate) blends by reactive extrusion : effects of the molecular structure of a reactive compatibiliser

摘要: This paper reports on the relative role of functional group content and molecular weight a glycidyl methacrylate (GMA) functionalised PP (PP-g-GMA) as reactive compatibiliser in compatibilisation polypropylene (PP) poly(butylene terephthalate) (PBT) immiscible blends co-rotating twin screw extruder. Two series PP-g-GMA were compared terms their compatibilising effects morphology mechanical properties (elongation at break impact strength) blend. The first had same but different GMA contents while second weights. dictated primarily by amount blend, i.e., two having efficiency when blend was same. For PP-g-GMA, higher weight, efficiency.