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Toughening of nylon 6 with a maleated core-shell impact modifier

โœ Scribed by Zhong-Zhen Yu; Yu-Chun Ou; Zhong-Neng Qi; Guo-Hua Hu

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
381 KB
Volume
36
Category
Article
ISSN
0887-6266

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โœฆ Synopsis

Super-tough nylon 6 was prepared by using maleic anhydride grafted polyethylene-octene rubber/semicrystalline polyolefin blend (TPEg) as an impact modifier. The morphology, dynamic mechanical behavior, mechanical properties, and toughening mechanism were studied. Results indicate that TPEg with a semicrystalline polyolefin core and a polyethylene-octane rubber shell, possesses not only a better processability of extruding and pelletizing with a lower cost, but also an improved toughening effect in comparison with the maleated pure polyethylene-octene rubber. The shear yielding is the main mechanism of the impact energy dissipation. In addition, the influence of melt viscosity of nylon 6 on toughening effectiveness was also investigated. High melt viscosity of matrix is advantageous to the improvement of notched Izod impact strength.

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