What are the similarities and differences between gas-phase silicone tube and medical silicone tube?

Gas-phase silicone has many similarities with medical silicone tubes.It can also be certified by some export tests, but adding different vulcanized rubber will have different results and test standards.Although gas-phase silicone tubes are similar to medical silicone tubes, vulcanized rubber is still needed to achieve the vulcanization effect.It can be approved by the FDA, but LFGB testing in Europe and the United States is not certain.

Gas phase silicone rubber, also known as high pressure silicone rubber, mainly produce transparent silicon products.Compared with ordinary silica gel, it can produce products with high elasticity, high toughness, low compression and buffering deformation, and resistance to yellowing.Gas-phase silica gel is made of tetrachloride and air-combustion silica gel with a fineness up to 1.Over 1000 mesh.The difference is that precipitated silica is produced by adding sulfuric acid to sodium silicate to precipitate silica.The fineness is only 300-400 mesh.

The difference between gas-phase silicaone gel tube and medical silica gel tube is that the silica gel prepared by precipitation method turns white when stretched and has low tensile strength.However, aerogel whitening does not occur during stretching.The tensile strength can reach about 500%.The fineness of silica obtained by combustion of silicon tetrachloride and air exceeds 1000 mesh.The precipitation method is to precipitate silicon dioxide with sodium silicate after adding sulfuric acid.The fineness is only 300-400 mesh.