De lokale jongerenwerker over de wirwar van het signaleren van radicalisering versus extremisme

Technical Sciences

Johannes W. van Hoek (Lid Lectoraat) ; Geert Heideman (Associate Lector) ; Yvette Verdonk ; Wilma K. Dierkes (Lid Lectoraat)

Hogeschool Windesheim

关键词: Technologie;    Kunststoftechnologie;    Polymer engineering;    Autobanden;   

学科分类：工程和技术（综合）

荷兰|英语

来源: HBO Kennisbank

【 摘 要 】

In the recent past, the use of resins in modern tread compounds has increasedconsiderably, in order to further improve tire properties. Based on the experience withsilica-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 compoundwith 20 phr resin are investigated with respect to processing of the deand revulcanizate, curing, mechanical and dynamic properties of the revulcanizate. The resin-containingfor 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 tandelta 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.