Ozone resistance of vulcanized NBR-PVC blends

Authors
Livanova, NM Popov, AA Karpova, SG Bogaevskaya, TA Farmakovskaya, MP
Citation
Nm. Livanova et al., Ozone resistance of vulcanized NBR-PVC blends, POLYM SCI A, 42(6), 2000, pp. 661-666
Citations number
28
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
POLYMER SCIENCE SERIES A
ISSN journal
0965545X → ACNP
Volume
42
Issue
6
Year of publication
2000
Pages
661 - 666
Database
ISI
SICI code
0965-545X(200006)42:6<661:OROVNB>2.0.ZU;2-E
Abstract
A relationship between structure and ozone resistance of the vulcanized 70 : 30 blends of butadiene-acrylonitrile-rubbers (NBR) and poly(vinyl chlorid e) (PVC) was studied. The samples were prepared from NBR of the SKN-18, SKN -26, and SKN-40 grades and PVC (obtained by emulsion or suspension polymeri zation) by methods of high- and low-temperature blending followed by treatm ent in a thermostat. The properties of blends (including homogeneity, inter phase layer structure, and ozone resistance) were studied by methods of str ess relaxation, EPR, and IR spectroscopy. A mechanism of the ozone-protecti ve action of thermoplast (PVC) in the blends with NBR is considered for the systems possessing various degrees of homogeneity.