Silicone rubber is a resilient and highly-resistant elastomer, rubber-like material, composed of silicone-containing silicon along with other molecules like hydrogen, carbon, as well as oxygen. Its structure consists of a siloxane backbone or silicon-oxygen chain, and a natural moiety bound to the silicon.
Hence, the buildings of silicone rubber can vary greatly relying on the:
- Organic groups, such as methyl, phenyl, vinyl, trifluoropropyl, or other groups.
- Structure of chemical.
As contrasted to organic rubber, silicone rubber has a Si-O bond in its structure, and therefore, it has better:
- Heat resistance.
- Electrical insulation.
- Abrasion resistance.
- Chemical stability.
- Weatherability as well as Ozone resistance.
Silicone rubber [ยาง ซิ ลิ โคน, which is the term in Thai] can withstand temperatures varying from -50°C to 350°C depending upon the duration of exposure. Components made of silicone rubber when revealed to rain, wind, and UV rays for extended periods result in essentially no modification in physical homes. Unlike most organic rubbers, silicone rubber is not impacted by ozone also.
Silicone Rubber’s unique attributes are, therefore, stem from its distinct molecular structure that can lug both unnatural, as well as natural properties.
With these distinct attributes, silicone rubber is widely used in industries such as aerospace, construction, vehicle, medical, food handling, E&E, etc. General silicone rubbers are utilized in numerous applications as elastomers, sealants, adhesives, potting, as well as encapsulating compounds along within layers, lubricating substances, etc.
Business quality Silicone rubbers were initially presented by Dow Corning, now a 100% Dow subsidiary, in 1943. Today, silicone rubbers are made by numerous companies.
Incorporating LSR with Thermoplastic Shot Molding
Injection molding of liquid silicone rubber has caught increasing attention of late. Processing this product calls for special tools as the LSR is vulcanized under heat.
In addition to a shot molding machine, a metering/mixing system is needed for both LSR parts, as well as a specifically made mold is required to handle the product which is treated around 160-200°C.
To learn about resin [เร ซิ่น, which is the term in Thai], please follow the link.