Silicone rubber rollers are organic elastomers with polysiloxane as the main chain, and polysiloxane is a silicone rubber roller made of Si-O (silicon-oxygen) chains repeatedly connected.
1. Aging resistance
Excellent ozone aging resistance, oxygen aging resistance, light aging resistance and weather aging resistance, the performance of vulcanized silicone rubber will not change after being placed outdoors for several years in a free state
2. special surface properties
Low hygroscopicity, the water absorption rate is only 1% after long-term immersion in water, the physical and mechanical properties will not decrease, the mildew resistance is good, and it has no breeding effect on various algae and molds. It is not sticky to many materials and can act as a barrier.
3. High and low temperature resistance
The outstanding performance of silicone rubber is that it has a wide operating temperature. Among all kinds of rubber, it has the widest operating temperature range of -100~350°C.
4. Medium resistance
Good resistance to neutral solvents. Not oil resistant, not recommended for use in most concentrated solvents, oils, concentrated acids and diluted sodium hydroxide.
5. electrical insulation
Excellent electrical insulation performance, little change when affected by moisture, frequency change or temperature rise, the silicon dioxide formed after combustion is still an insulator, and can be used in high-voltage occasions.
6. other features
Physiological inertia: non-toxic and tasteless, no adverse effects on the human body.
High air permeability: the air permeability is tens to hundreds of times larger than that of ordinary rubber, and the air permeability of different gases (02, N2, CO2, etc.) is quite different.
6. main disadvantage
The tensile strength, tear strength and abrasion resistance of vulcanized rubber at room temperature are much lower than those of natural rubber and other synthetic rubbers, and their acid and alkali resistance are poor, and they are more expensive.
7. Uses
Mainly used in aviation industry, electrical industry, food industry and medical industry, etc.
Post time: Feb-20-2023