Hydrogen-containing fluorosilicone oil facilitates the research and development of new oil-resistant fluorosilicone rubber foam materials


1. Break through traditional limitations and explore new paths for flexible sensing
The urgent application in various complex and harsh environments, such as extreme humidity/temperature, electromagnetic interference and underwater conditions, has greatly promoted the rapid development of flexible sensors. However, how to achieve reliable detection of flexible conductive sensing materials in oily or solvent environments remains highly challenging. With the continuous improvement of the application environment requirements for flexible sensors, this key barrier urgently needs to be broken through.

2. Innovate synthesis strategies and develop oil-resistant fluorosilicone rubber foams
The research team introduced highly polar fluorine-containing groups into the side chains of siloxane through anionic ring-opening polymerization, and designed and synthesized vinyl-terminated polytrifluoropropyl methylsiloxane. They also developed oil-resistant fluorosilicone rubber foam materials (FSiRF) through a green chemical foaming strategy. The addition of excessive hydrogen-containing fluorosilicone oil during the foaming process ensures the formation of covalent bonds and hydrogen bonds between the foam material and the conductive layer (oxidized superconducting Kotan carbon black), promoting the interaction between the interfaces.

3. The material has outstanding performance and great potential for application in multiple fields
The flexible siloxane main chain endows the material with excellent mechanical flexibility over a wide temperature range (-20 to 200 °C). The multiple effects of Si-H groups on the foam surface and carbon black oxide promote the stable construction of the conductive layer, and it does not fall off after long-term immersion in acid, alkali and salt solutions. Under the combined effect of low surface energy substances and micro-nano rough morphology, the material achieves superhydrophobicity and possesses self-cleaning performance. This material shows great application potential in the fields of thermistors, smart sensors and wearable electronic devices, especially in complex solvent environments.

4. The scientific research achievements are remarkable, promoting technological innovation in the industry
The relevant research results have been published in internationally renowned journals, marking an important progress in the application of hydrogen-containing fluorosilicone oil and the research and development of flexible sensing materials, which is expected to promote technological innovation and product upgrading in related industries.