The curing principle of 107 silicone rubber is a complex process involving chemical reactions and structural transformations of materials. The core lies in the cross-linking reaction of the silicone rubber and the role of the curing agent.
First of all, the cross-linking reaction of silicone rubber is a critical step in curing. In this process, the silicon atoms on the molecular chain of the silicone rubber react with the active hydrogen atoms in the curing agent to form silicon-oxygen bonds and disulfide bonds. The formation of silicon-oxygen bonds causes cross-links between the molecular chains of silicone rubber, resulting in a three-dimensional network structure. This structure not only enhances the strength of the silicone rubber, but also improves its elasticity. The formation of disulfide bonds further exerts the cross-linking effect of the curing agent and accelerates the curing speed of silicone rubber.
In 107 silicone rubber, the commonly used curing agents are mainly diethylmercaptan (DET) and dimethylmercaptan (DMS). When these curing agents are added to silicone rubber, the active hydrogen atoms in the curing agent react with the silicon atoms on the molecular chain of the silicone rubber to form sulfur-silicon bonds. The formation of this sulfur-silicon bond prompts further cross-linking between the molecular chains of the silicone rubber, which transforms the silicone rubber from a liquid state to a solid state.
It is important to note that the amount of curing agent added and the curing temperature are the key factors that affect the curing speed and curing effect. The right amount of curing agent and the right curing temperature can ensure that the silicone rubber is fully cured and achieves the desired performance.
In addition, the curing process of 107 silicone rubber involves polymerization reactions, diffusion, and thermodynamic driving forces and kinetic control. The polymerization reaction causes the monomeric molecules to bind into longer chains, the diffusion process causes the molecules to rearrange in the material, and the thermodynamic driving force and kinetic control affect the entire curing process.
Overall, the curing principle of 107 silicone rubber is a complex chemical reaction process, through the cross-linking reaction and the action of curing agent, the silicone rubber is able to change from a liquid state to a solid state, and exhibits excellent physical and chemical properties.
