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...

Full description

Saved in:
Bibliographic Details
Published inPolymer testing Vol. 21; no. 5; pp. 577 - 582
Main Authors Wang, Zhongjian, Zhang, Xiangfu, Zhang, Yinxi
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2002
Subjects
Dynamic vulcanization
Impact strength
NBR
Nylon
SAN
Dynamic vulcanization
SAN
Nylon
Impact strength
NBR
Online AccessGet full text

Cover

More Information
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.
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