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The effect of the combination of accelerators on vulcanization of natural rubber. I. The effect of diphenylguanidine in mixture with mercaptobenzothiazole

J. Beniska and P. Rosner

Slovak Technical University, Bratislava

 

Abstract: In mixts. with diphenylguanidine (Denax) (I) a higher amt. of cross-linking occurs with a greater firmness than in similar mixts. with mercaptobenzothiazole (Captax) (II) but the optimum of vulcanization is reached later. Up to 3 parts ZnO per 100 parts of rubber increases the speed of cross-linking. Vulcanization of mixts. with a combination of I and II occurs faster and the firmness is greater than in mixts. with individual accelerators. The activation effect of I is primarily in the activation of cross-linking. There is no chem. compd. formed between I and II during the vulcanization.

Full paper in Portable Document Format: 135a304.pdf (in Slovak)

 

Chemical Papers 13 (5) 304–312 (1959)

Thursday, June 13, 2024

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