Selection of rubber materials for rubber joints in food pipelines
Food-grade rubber joints use imported silicone raw materials, use scientific production technology, and use intermittent methods to produce rubber, aiming at the high tear resistance and high transparency of fumed rubber, the ultra-high and lower hardness of the compound, and the functional compound. This product has a wide range of adaptability.

1. Food-grade rubber joints have the advantages of higher transparency, odorless, non-yellowing, and non-blooming compared to the traditional two-two-four vulcanization process silicone tube and silicone profiled material. Especially, it solves the problem of black rubber tube blooming and blue products. The problem of fading. It is non-toxic, tasteless, stable chemical properties, and does not react with any acid-base salts except caustic alkali and hydrofluoric acid under normal conditions.
2. Because it is a colloidal structure, it has many micropores and a large specific surface area. The pore size of the edible silica gel is about 8-10nm. In the test, the specific surface area of ​​the silicone rubber is 300-500m2/g, and the surface is hydrophilic. It has strong water absorption capacity. Under high humidity, its water absorption can reach 80% of its own weight. Above %-100%. Therefore, food-grade silica gel can be used as an external desiccant for food and medicine.