技術摘要（英）
The molecular structure design is used to synthesize new coolants, so that the newly developed compounds can have both high flash point and low viscosity, and meet the specifications of immersion coolants. This year oil aging, material compatibility and other related tests are also carried out to confirm the feasibility of real machine verification. Currently, the Raspberry Pi has been soaked in this coolant for six months, and the machine can operate normally.