Characterization of elastomer networks by NMR parameters - Part III - Influence of activators on the network dynamics of NR vulcanizates | Health & Environmental Research Online (HERO)

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HERO ID

5335993

Reference Type

Journal Article

Title

Characterization of elastomer networks by NMR parameters - Part III - Influence of activators on the network dynamics of NR vulcanizates

Author(s)

Zhao, F; Zhang, P; Zhao, SG; Yu, J; Kuhn, W

Year

2008

Is Peer Reviewed?

Journal

KGK Kautschuk, Gummi, Kunststoffe
ISSN: 0948-3276

Volume

Issue

Page Numbers

224-+

Web of Science Id

WOS:000256290500004

Abstract

H-1-NMR relaxation measurements were successfully used in characterizing the influence of the activators ZnO and stearic acid on the network structure of NR. The H-1-NMR relaxation parameters of NR vulcanizates obtained from different amounts of activators are shown in detail. NR vulcanizates cured with different amounts of activators show different molecular mobility due to different crosslink densities. The temperature dependence of T-1, T-2, was also measured. The evolution of the network structure during the vulcanization process, with different amounts of ZnO, was also depicted.

Keywords

NMR; relaxation parameter; vulcanization; NR; activator; crosslink density