Overview of the Silicone
Silicones are polymers that include any inert, synthetic compound made up of repeating units of siloxane. They are typically heat-resistant and rubber-like, and are used in sealants, adhesives, lubricants, medicine, cooking utensils, and thermal and electrical insulation.
Some common forms include liquid silicone oil, soft silicone gel, silicone rubber and regidity silicone resin, and silicone caulk.
- Low toxicity
- Low thermal conductivity and thermal stabilityThermal conductivity is the property of conducting heat. The material, Silicone, of low thermal conductivity is often used as the purpose of thermal insulation. With the characteristic, the material provides high stability when being processed through a wide temperature range of -40℃~200℃ which makes the adhesion of different materials a significant technique to perform
- Low chemical reactivity
- Impact resistant
- The ability to repel water and form watertight seals
- Does not support microbiological growth
- Resistance to oxygen, ozone, and ultraviolet (UV) light This property has led to widespread use of silicones in the construction industry (e.g. coatings, fire protection, glazing seals) and the automotive industry (external gaskets, external trim).
- Electrical insulation properties silicone can be formulated to be electrically insulative or conductive, it is suitable for a wide range of electrical applications.
- No "marked harmful effects on organisms in the environment" have been noted for silicones. They are non-biodegradable but are absorbed by solids in waste water treatment facilities. Degradation is catalyzed by various clays.
Products & Applications
The end products may take on diverse consistencies as hard plastic, rubber, gels, and liquids based on different demands and applications.
The liquid types-LSR, Liquid Silicone Rubber (so called LIMS, Liquid Injection Mold system), is extensively used in a wide range of industries and favored by infant-care, food container and medical device manufactures.
Mainly, silicone-made products benefit as high elongation, superior tensile strength, tear strength, resistance to extreme temperatures, and bacteria resistance.
The properties have contributed to the use of silicones in medical applications involving seals, plungers, valves, and gaskets in implanted and non-implanted devices. Common applications are skin protecting composition, prosthesis, seat cushion......etc.