| abstract |
The invention discloses a foamed silicone rubber sealing ring composition and its application. A foamed silicone rubber sealing ring composition, the raw materials of which include by weight: 90-100 parts of a base polymer; 10-100 parts of a reinforcing resin; 1-15 parts of a crosslinking agent; and 10-100 parts of a flame retardant filler ; 5-25 parts of reinforcing filler; 1-5 parts of foaming aid; 0.1-10 parts of foam stabilizer. Compared with traditional PU foam and EVA foam sealing materials, the foamed silicone rubber sealing ring prepared from the composition of the present invention has better weather resistance, low permanent deformation, and can be used for a long time under harsh conditions such as outdoors. The sealing effect is better. Compared with traditional silicone rubber foam foam, it does not require calendering or molding equipment to form a sheet, and does not need to be cut or punched or spliced into a sealing ring; the molding efficiency is improved, and the material of foam foam is improved. The utilization rate can be avoided to avoid the hidden danger of sealing failure caused by poor bonding of the interface. |