Silicone roller is a roll-shaped product made of metal or other materials as the core, covered with silicone rubber and vulcanized. It has the advantages of high temperature resistance, ozone resistance, chemical inertness and non-adhesion to plastics. It is mainly used for polyethylene calendering. , Embossing, printing and dyeing, plastic compounding, release rollers on packaging machines and non-woven fabric manufacturing, etc., are also commonly used for pattern printing on heat transfer printing of toys, electronics, craft gifts, and bronzing products.
1- Excellent high and low temperature resistance
Operating temperature range -100 to 350°C. Excellent resistance to ozone aging, oxygen aging, light aging and weather aging resistance. Silicone rollers have no change in performance when they are left outdoors for several years in a free state. Therefore, the use of silicone rollers in many industries is also one of its conveniences.
2- Excellent electrical insulation properties
The electrical insulation performance of the silicone roller changes little when it is exposed to moisture, frequency changes or temperature rises. The silica generated after combustion is still an insulator. Therefore, in some environments where insulation is required, the use frequency of silicone rollers is also higher. In addition, there are few carbon atoms in the molecular structure of the silicone roller, and no carbon black is used as a filler, so it is not prone to scorch during arc discharge, so it is very reliable to use in high-voltage applications. Its corona resistance and arc resistance are extremely good, the corona resistance life is 1000 times that of polytetrachloroethylene, and the arc resistance life is 20 times that of fluoro rubber.
3-Special surface properties and physiological inertia
Silicone rollers have special surface properties and physiological inertia. The surface energy of silicone rollers is lower than that of most organic materials. Therefore, it has low moisture absorption, long-term immersion in water, its water absorption is only 1%, physical and mechanical properties are not reduced, and its anti-mold performance is good. Therefore, silica gel is also used for underwater operations or humid environments. In addition, the silicone roller does not adhere to many materials and can play a role in isolation.
4- Excellent physiological inertia and physiological aging
Silicone rubber is odorless, non-toxic and has no adverse effects on the human body. The body reacts slightly and has excellent physiological inertia and physiological aging.
5- High air permeability
Compared with other polymer materials, the silicone roller has extremely superior air permeability. The air permeability at room temperature is 30-40 times that of natural rubber. In addition, the silicone roller also has the selectivity to gas, The gas permeability is different.
Post time: Dec-07-2021