Comparison of the toughening effects of different elastomers on nylon 1010

✍ Scribed by Haiyang Yu; Yong Zhang; Wentan Ren; Martin Hoch; Sharon Guo

• Publisher: John Wiley and Sons
• Year: 2011
• Tongue: English
• Weight: 783 KB
• Volume: 121
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.33953

✦ Synopsis

The toughness of three different elastomertoughened nylon 1010 blends was investigated via standard notched Izod impact test and single edge notched three-point bending test. The toughness of nylon 1010 blends varies much with different elastomer types and components. All three kinds of nylon/elastomer/ maleated-elastomer blends showed high impact strength (over 50 kJ m À2 ) as long as at appropriate blending ratios. With increasing maleated elastomer content, brittle-ductile transition was observed for all three kinds of elastomertoughened nylon 1010 blends. The number average dispersed particle size (d n ) of ethylene-1-octene copolymers or ethylene-vinyl acetate copolymers toughened nylon 1010 blends significantly decreased from over 1 to 0.1 lm with increasing corresponding maleated elastomer content. Investigation on the fracture toughness showed the dissipative energy density gradually increased with decreasing d n , while the limited specific fracture energy increased with increasing d n when d n was below 1 lm and then sharply decreased with further increasing d n . The energy consumed in the outer plastic zone was the main part of the whole energy dissipated during the fracture process. V