The vulcanization system is very important in the research process of foamed products. First of all, whether the vulcanized system matches the foamed system is the key to making foamed products with good performance. Whether a rubber can be successfully foamed, the most important thing is that the vulcanization process of the rubber and the decomposition process of the blowing agent should be basically synchronized, or the sulfur generation time is slightly earlier than the foaming time. Therefore, after selecting the vulcanization system, adjust the foaming system to match it, or after selecting the foaming system, adjust the vulcanization system to match it.