Rupture of rubber. IV. Tear properties of vulcanizates containing carbon black

Abstract The tear properties of natural rubber and GR‐S vulcanizates containing carbon black are compared with those of gum vulcanizates, using a method developed in a previous paper. The distinctive features in the tear behavior of the filed vulcanizates are noted and discussed. The results indicate that there are two types of tear process, which vary in importance according to the tearing conditions, and the influences of carbon black on these processes is discussed.