Home    Company News    Silicone rubber vulcanization system

Silicone rubber vulcanization system

Hits: 230 img

Silicone rubber vulcanization system refers to the chemical system used for the vulcanization (or crosslinking) process of silicone rubber. Vulcanization is the process of cross-linking the polymer chains in rubber to give it elasticity and heat resistance. Silicone rubber is a polymer composed of silicon and oxygen, commonly used in the manufacturing of seals, electronic components, medical devices, and other products.

The silicone rubber vulcanization system typically consists of the following components:
Silicone rubber base material: Silicone rubber is the main component of the vulcanization system, which usually exists in a rubbery solid or liquid form. Silicone rubber has good heat resistance, cold resistance, and electrical insulation properties.

Vulcanizing agent: Vulcanizing agent is a key component in the vulcanization process of silicone rubber, which can trigger a chemical reaction between sulfur atoms and thiol groups (also known as thioether groups) in the silicone rubber, forming a cross-linked structure. Common vulcanizing agents include sulfur (S) and peroxide compounds (such as dimethyl phosphorus disulfide).

Accelerator: Accelerator is used to accelerate the speed and efficiency of the vulcanization reaction. Common promoters include Organic peroxides (such as bis (tetrachlorovinyl) peroxides), Sulfamide compounds and metal salts.

Additives: Additives are used to improve the process performance of vulcanization systems and the performance of rubber products. They can include antioxidants (such as diphenyldimethylacrylate), plasticizers, fillers, and lubricants.

The specific formula and operating conditions of the silicone rubber vulcanization system may vary depending on the application field and product requirements. The vulcanization process is usually carried out at a certain temperature and time to ensure that the rubber can fully crosslink and form the required physical properties. The vulcanized silicone rubber has excellent heat resistance, chemical resistance, and electrical insulation properties, making it suitable for various applications with high temperature, corrosion resistance, and insulation requirements.

Recommend

    Online QQ Service, Click here

    QQ Service

    Wechat Service