What is the difference between silicone platinum sulfide and disulfide sulfide?

The vulcanization of silicone is a process that transforms silicone from liquid or solid to elastomer, involving the formation of cross-linking reactions. Silicone platinum vulcanization and disulfide vulcanization are two different vulcanization systems, and their differences are mainly reflected in the following aspects:
Sulfurization system:
Platinum vulcanization: Using platinum as a catalyst for vulcanization reaction is a relatively environmentally friendly vulcanization method that does not produce toxic or harmful by-products.
Double disulfide sulfurization: usually refers to the sulfurization system of disulfides (such as sulfur dioxide) and hydrogen sulfide, which may produce some by-products and have certain impacts on the environment and operators.
Sulfurization rate:
Platinum vulcanization usually has a slower vulcanization rate, but the vulcanization process is milder, which helps to control product quality.
The speed of disulfide vulcanization may be faster, but stricter control may be required during the vulcanization process to avoid over vulcanization or under vulcanization.
Sulfurization temperature:
Platinum vulcanization can be carried out at lower temperatures, which helps save energy and reduce production costs.
Double disulfide vulcanization may require higher vulcanization temperatures.
Product performance:
Platinum sulfide products typically have better transparency, heat resistance, and chemical resistance.
Double disulfide products may differ from platinum vulcanized products in certain performance aspects.

Environmental friendliness:
The platinum sulfide system is considered a more environmentally friendly choice as it does not produce harmful by-products.
Double disulfide may pose certain risks to the environment and the health of operators.
Cost:
Platinum sulfide may increase production costs due to the high cost of catalysts used.
The cost of disulfide may be relatively low, but its impact on the environment and health needs to be considered.
Application areas:
Platinum sulfide is commonly used in fields such as healthcare, food contact, and high-end electronic products due to its environmental and performance advantages.
Double disulfide may be more commonly used for general industrial purposes, among which products with less stringent environmental requirements.
Regulations and standards:
Platinum sulfide complies with stricter environmental regulations and product standards.
Double disulfide vulcanization may require compliance with specific industry standards, but environmental requirements may be lower.
The choice of vulcanization system depends on various factors such as the application requirements, performance requirements, production costs, and environmental standards of the product. In actual production, manufacturers will choose the most suitable vulcanization system based on these factors.