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Accelerator, in the rubber industry, is added with a curing agent to speed the vulcanization. Accelerators contain sulfur and nitrogen like derivatives of benzothiazole and thiocarbanilides. The popular accelerators are sulfenamides (as a delayed-action accelerators), thiazoles, thiuram sulfides, dithocarbamates and guanidines.
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- What is accelerator TETD?
- Accelerator TETD is a very active, sulfur-bearing, non-discoloring rubber accelerator for use in natural and synthetic rubber systems. It can be used alone or combination with many other common rubber accelerators. TETD functions as a primary accelerator for cure systems requiring very low or no sulfur. It is cure modifier in W/G-type neoprenes.
- Does accelerator TETD need sulfur?
- Sulfur is not required, but is often used. TETD can be blended with TMTD to reduce the tendency of the compound to bloom while maintaining cure activity. Accelerator TETD is also available as Akroform® TETD-75. This polymeric masterbatch contains 75% Accelerator TETD.
- Can thiazole accelerators be boosted?
- All thiazole accelerators can be further boosted to increase their cure speed, they are often combined with small amounts of basic accelerators such as diphenyl guanidine (DPG), diorthotolyl guanidine (DOTG), Tetramethylthiuram monosulfide (TMTM), Tetramethylthiuram disulfide (TMTD), ZDC, etc. Scorch Safety Longer…. (ZMBT>MBTS>MBT)
- Do I need a fatty acid to use TETD?
- Normally zinc oxide and a fatty acid are required when using TETD in a natural rubber application. Sulfur is not required, but is often used. TETD can be blended with TMTD to reduce the tendency of the compound to bloom while maintaining cure activity. Accelerator TETD is also available as Akroform® TETD-75.
- What is TETD & how do you treat it?
- Use adequate ventilation. TETD is a thiuram, which combined with alcohol, causes severe toxic symptoms & skin flushes (antabuse effect).
