Medical silicone rubber with high mechanical properties and a manufacturing process therefor

摘要

The present invention relates to a medical silicone rubber with high mechanical properties and a production method for the same, the medical silicone rubber comprising the following raw materials in parts by weight: 50 to 90 parts of silicone rubber, 10 to 50 parts of polyurethane, 10 to 50 parts of fillers, 2 to 6 parts of hydrogen Silicone oil and 2 to 5 parts vulcanizing agent. The manufacturing process comprises the following steps: uniformly mixing a part of the fillers with silicone rubber in an internal mixer for later use and evenly mixing the remaining part of the fillers with polyurethane in the internal mixer for later use; Mixing the mixed polyurethane on an open rubber refining machine, then successively adding a small amount of the hydrogen-containing silicone oil, the evenly mixed silicone rubber and the vulcanizing agent several times into the open rubber refining machine, and finally vulcanizing the mixed rubber on a sheet rubber vulcanizing machine for 5 up to 15 minutes at 150 to 190 ° C in order to obtain the medical silicone rubber with high mechanical properties. The medical silicone rubber with high mechanical properties has the peculiarities of good mechanical performance, no irritation and high safety and the like.