Title: REACTIVE COMPATIBILIZATION AND ELASTOMER TOUGHENING OF POLY(2,6-DIMETHYL-1,4-PHENYLENE OXIDE)/POLYAMIDE 6 BLENDS
Page Range: p.219-226
Author(s): Li B; Wan C; Zhang Y; Ji J; Su Y
File size: 358K
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 18
Issue No: No.4
Abstract
Poly(2,6-dimethyl-1,4-phenylene oxide)/polyamide 6 (PPO/PA6) blends were reactively compatibilised by maleic anhydride (MA) grafted PPO (PPO-g-MA) and toughened by MA grafted styrene-ethylene-butadiene-styrene block copolymer (SEBS) (SEBS-g-MA) via melt extrusion. The compatibilising effect of PPO-g-MA on the PPO/PA6 blends was studied by using scanning electronic microscopy, differential scanning calorimetry and mechanical properties tests. The notched impact strength of PPO-g-MA/PPO/PA6/SEBS-g-MA blends increased with increasing SEBS-g-MA content, leading to blends having super-tough behaviour. The fracture behaviour of the PPO/PA6 blends was studied using a modified essential work of fracture model (EWF), which showed that plastic deformation related to SEBS-g-MA was the crucial factor for the toughening. 31 Refs.
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