Impact properties of dynamically vulcanized nylon/styrene–acrylonitrile copolymer/nitrile rubber blends
Impact properties of dynamically vulcanized blends of nylon, styrene–acrylonitrile (SAN) copolymer and nitrile rubber (NBR) with PF compound were examined. The effects of nylon/SAN ratio, temperature and PF content on the impact behavior of the blends is discussed. It is clear that the dynamically v...
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Published in | Polymer testing Vol. 21; no. 5; pp. 577 - 582 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Elsevier Ltd
2002
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Subjects | |
Online Access | Get full text |
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Summary: | Impact properties of dynamically vulcanized blends of nylon, styrene–acrylonitrile (SAN) copolymer and nitrile rubber (NBR) with PF compound were examined. The effects of nylon/SAN ratio, temperature and PF content on the impact behavior of the blends is discussed. It is clear that the dynamically vulcanized nylon/SAN/NBR blends with nylon/SAN ratio of 2:1 and more than 8 phr PF content can attain good impact properties, even super-toughness, at ambient temperature. Charpy impact force–time graphs and fracture surface morphology show that the nylon/SAN/NBR (50/25/25) blends apparently show brittle-to-ductile transition when the PF content is more than 8 phr. SEM was used for investigation of the effect of PF as curing agent on the dispersed-phase particle size, particle size distribution and phase morphology. It was obvious that the dispersed-phase particle size decreases with increase of the PF content. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0142-9418 1873-2348 |
DOI: | 10.1016/S0142-9418(01)00127-1 |