Active agent, also known as co-accelerator, can make vulcanization accelerator play an effective role. Commonly used active agent aerobic

Zinc carbonate, zinc oleate, triethanolamine, etc. Natural latex sponge styrene-butadiene latex sponge butyronitrile latex sponge

In general, zinc oxide is suitable as an active agent. It is worth pointing out that zinc oxide generally does not exceed parts, otherwise

Because zinc oxide reacts with ammonia in latex to form zinc-ammonia complex, which leads to thermal sensitivity, poor foam stability and foam collapse of sponge products. When the lead content in zinc oxide is high (greater than), the foam will also be unstable.

Adding a small amount of active agent can greatly improve the vulcanization degree and heat resistance of vulcanized rubber. Active agents are divided into inorganic and organic. Inorganic active agents are mainly metal oxides, among which zinc oxide and active zinc oxide are the most important. The organic active agent is represented by stearic acid. When the amount of fatty acid is large, the vulcanization speed will be reduced, but vulcanization will be sufficient, and a cross-linked structure with good heat resistance will be obtained.