Research Article

Introduction to the New Copolymer of Chloroprene and Acrylonitrile with Differentiated Properties

Table 6

Ozone resistance of vulcanizates of acrylonitrile-chloroprene rubber (NCR), chloroprene rubber (CR), and nitrile rubber (NBR).

Exposure timeNCRCRNBR

24 hrsNo crackNo crackCracks appear
48 hrsNo crackNo crack
72 hrsNo crackNo crack
144 hrsCracks appearCracks appear