Silicone rubber, a synthetic elastomer with silicon oxygen bonds as the main chain and organic groups attached to the side chains, can be regarded as the most legendary existence in the world of materials. Its main chain is composed of alternating silicon and oxygen atoms, forming a unique Si-O-Si bonding structure. It is this "inorganic skeleton" that endows it with a temperature resistance limit far beyond that of ordinary rubber - it remains flexible in extreme cold of -73 ℃, can withstand several weeks of flames at 300 ℃ without breaking, and can withstand temperatures up to 180 ℃ for long-term use and instantaneous high temperatures above 300 ℃ in the short term. This astonishing span from extreme cold to extreme heat is unparalleled among all rubber materials, unmatched by anyone else.

The story of silicone rubber began in 1945, when American scientists first synthesized this miraculous material using ferric chloride as a catalyst. In 1948, just three years later, the emergence of high specific surface area gas-phase white carbon black reinforcement technology opened the door to the practical application of silicone rubber like a key, leading to a qualitative leap in its performance and laying the technological foundation for modern silicone rubber industry. The industrialization research of silicone rubber in China began in 1957, and over the following decades, its production capacity continued to rise from 135 thousand tons in 2003. Today, a complete industrial chain has been formed from white carbon black processing to terminal products, and China has become the world's largest producer of silicone rubber. According to industry predictions, the consumption of silicone rubber has moved from the early million ton level to a huge market of millions of tons, with an unstoppable growth momentum.

According to the vulcanization method, silicone rubber can be divided into two major camps: high temperature vulcanization (HTV) and room temperature vulcanization (RTV). In the high-temperature vulcanization type, methyl vinyl silicone rubber (VMQ) occupies an absolute dominant position in terms of dosage and grade due to its excellent comprehensive performance; Introducing phenyl methyl vinyl phenyl silicone rubber (PVMQ) pushes the low temperature resistance to -73 ℃ while endowing it with excellent radiation resistance; And special varieties such as fluorosilicone rubber and nitrile silicone rubber have elevated their oil and solvent resistance to new heights. Room temperature vulcanization is further divided into condensation reaction type and addition reaction type. The former is based on α, ω - dihydroxypolysiloxane (commonly known as 107 glue) and is widely used as an adhesive and potting material; The latter, driven by platinum catalysts for addition reactions, has higher safety and has become the preferred choice for medical and food grade products.

Regarding liquid silicone rubber, please refer to our website for details: IOTA Liquid Silicone Rubber