Samenvatting

In the recent past, the use of resins in modern tread compounds has increased considerably, in order to further improve tire properties. Based on the experience with silica-silane filler system, which led to a different network structure and a significantly changed devulcanization behavior, the influence of resin addition need to be investigated as well. The influences on de- and revulcanization of a silica-silane based tread compound with 20 phr resin are investigated with respect to processing of the deand revulcanizate, curing, mechanical and dynamic properties of the revulcanizate. The resin-containing
for revulcanization prepared devulcanizates showed a difficulty in processing behaviour due to stickiness. tan delta at 0 ◦C of the revulcanizates had increased considerably, as an indication of improved wet grip when used in a tire tread. A marginal increase of tan delta at 60 ◦C was observed as well, which is an indication of a small increase in rolling resistance. All other investigated parameters concerning the de- and revulcanization process and the revulcanizad material changed according to expectations.