In the field of material science, the performance stability in extreme environments has always been the core index to measure the progressiveness of polymer materials. As human exploration continues to extend into the deep sea, space, and polar regions, the demand for elastic materials that can maintain functional integrity in ultra-low temperature environments is becoming increasingly urgent. A new type of silicone rubber with ethylsiloxane as the main chain structure, IOTA 2056 HTV, is reshaping the performance benchmark of extreme environmental engineering materials with its breakthrough low-temperature tolerance.

The most striking feature of this material is its glass transition temperature (Tg) as low as -147 ℃, which not only breaks the record for low-temperature performance of silicone rubber materials, but also extends the reliable working temperature range to above the liquid nitrogen temperature range (-196 ℃).

At the molecular structure level, the introduction of ethyl substituents significantly reduces the crystallization tendency of the main chain of polydimethylsiloxane, and suppresses segment freezing under low temperature conditions through steric hindrance effect, allowing the material to maintain rubbery elasticity in environments close to absolute zero. This unique molecular design endows it with low-temperature adaptability beyond traditional silicone rubber, maintaining over 300% elongation at break and stable mechanical properties even under extreme conditions of -150 ℃.

This excellent cold resistance makes it shine in polar scientific research equipment. In the extreme cold of -70 ℃ in the Arctic Circle, the suspension lining of the snow vehicle equipped with this material has been working continuously for more than 2000 hours without any brittle cracking phenomenon, and its dynamic stiffness change rate remains within a precision control range of ± 5%.

Of greater concern is the constant elastic modulus exhibited by the material in low-temperature environments, which provides reliable mechanical support for the pressure compensation diaphragm of deep-sea probes, ensuring micrometer level deformation response accuracy even under the combined action of 11000 meter water pressure and near freezing point in the Mariana Trench.

In the field of precision manufacturing, the unique constant damping characteristics of this material have opened up new application dimensions. Through precise regulation of molecular structure, the R&D team has achieved a breakthrough control of damping factor (tan δ) fluctuation not exceeding 15% within the temperature range of -150 ℃ to 200 ℃.

This characteristic makes it the core material for superconducting magnet isolation systems in quantum computing devices, effectively blocking mechanical vibrations in the frequency range of 0.1-1000Hz and providing critical protection for the coherence time of quantum bits. In the aircraft engine vibration monitoring module, the damping element made of this material successfully reduces the micro vibration transmission rate to 0.3%, ensuring the measurement accuracy of high-precision accelerometers in extreme vibration environments.

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