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Journal of Zhejiang University SCIENCE A 2006 Vol.7 No.8 P.1440-1446


Investigation of reinforcement of the modified carbon black from wasted tires by nuclear magnetic resonance

Author(s):  ZHOU Jie, YANG Yong-rong, REN Xiao-hong, STAPF Siegfried

Affiliation(s):  UNILAB Research Center for Chemical Reaction Engineering, School of Material Science and Chemical Engineering, Zhejiang University, Hangzhou 310027, China; more

Corresponding email(s):   yangyr@zju.edu.cn

Key Words:  Pyrolytic carbon black (PCB), Nuclear magnetic resonance (NMR), Relaxation, Dipolar correlation effect (DCE), Reinforcement

ZHOU Jie, YANG Yong-rong, REN Xiao-hong, STAPF Siegfried. Investigation of reinforcement of the modified carbon black from wasted tires by nuclear magnetic resonance[J]. Journal of Zhejiang University Science A, 2006, 7(8): 1440-1446.

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publisher="Zhejiang University Press & Springer",

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%A REN Xiao-hong
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2006.A1440

T1 - Investigation of reinforcement of the modified carbon black from wasted tires by nuclear magnetic resonance
A1 - ZHOU Jie
A1 - YANG Yong-rong
A1 - REN Xiao-hong
A1 - STAPF Siegfried
J0 - Journal of Zhejiang University Science A
VL - 7
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2006.A1440

Pyrolysis has the potential of transforming waste into recyclable products. pyrolytic carbon black (PCB) is one of the most important products from the pyrolysis of used tires. Techniques for surface modifications of PCB have been developed. One of the most significant applications for modified PCB is to reinforce the rubber matrix to obtain high added values. The transverse relaxation and the chain dynamics of vulcanized rubber networks with PCB and modified PCB were studied and compared with those of the commercial carbon blacks using selective 1H transverse relaxation (T2) experiments and dipolar correlation effect (DCE) experiments on the stimulated echo. Demineralization and coupling agent modification not only intensified the interactions between the modified PCB and the neighboring polyisoprene chains, but also increased the chemical cross-link density of the vulcanized rubber with modified PCB. The mechanical testing of the rubbers with different kinds of carbon blacks showed that the maximum strain of the rubber with modified PCB was improved greatly. The mechanical testing results confirmed the conclusion obtained by nuclear magnetic resonance (NMR). PCB modified by the demineralization and NDZ-105 titanate coupling agent could be used to replace the commercial semi-reinforcing carbon black.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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