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Number:
2-2
First DOTG-75
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Accelerator
Guanidine-based accelerators
Keywords:
- Chemical composition: Di邻toluene guanidine
- Complex carrier: EPDM/SBR/AEM
- Characteristics: The activators and accelerators for both natural and synthetic rubbers are highly similar to D (diphenylguanidine); they exhibit very low reactivity at processing temperatures, making them safe to handle. Their critical vulcanization temperature is 141°C, but once the vulcanization temperature—especially above this critical point—is reached, they become highly reactive while maintaining excellent vulcanization flatness. This compound serves as a key activator for thiazole, thiuram, and sulfenamide accelerators, and when used in combination with Accelerator M, it delivers a synergistic "super-accelerator" effect. Additionally, it is commonly paired with HMDC in vulcanization systems such as acrylic esters and polyurethanes.
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