ACCELERATORS
ACCLERATORS SELECTION CRITERIA FOR ACCELERATORS Time delay of vulcanisation initiation. Speed of the vulcanisation after it is initiated. Extent of the vulcanisation. Type of cross linking that is formed. Other factors such as green stock storage stability, bloom tendency etc., are also important. The principal chemical class of accelerators in commercial use today is discussed below. These compounds are typically classified as primary or secondary accelerators, Classification of Some Accelerators Primary Thiazoles MBT MBTS Sulfenamides CBS TBBS MBS DIBS Guanidines DPG DOTG Secondary Thiurams TETD TMTM TMTD Dithiocarbamates ZBDC ZMDC Dithiophosphates ZBDP Comparison of Accelerator Types Accelerated Type Cure rate Cross link Acryronym