Cpa 52z

After the degassed mixed paste was poured onto a fluorine release film, the viscosity of the residual degassed mixed paste without curing was measured using a viscometer (Brookfield, DV Next HB series, Middleborough, MA, USA) with a cone-and-plate-type spindle (CPA-52Z) at 1 rpm and 25 °C. Thermal conductivity was measured at room temperature using a TCi thermal conductivity analyzer (C-THERM, Fredericton, NB, Canada). The rubbery composite pads needed to be at least 40 mm × 40 mm × 3 mm for the thermal conductivity measurements. A 500 g weight was placed on the sample, which was then placed on the sensor, to ensure conformal contact between the sensor and the sample. Thermal conductivity measurements were repeated 9 times for each sample. The instrument for thermal conductivity measurements was displayed to the third decimal place. After curing, the rubbery composite pads were sliced using a razor blade and coated with a thin layer of Pt. These rubbery composite pads were imaged using a high-resolution scanning electron microscope (HR FE-SEM, Tescan, MIRA3-LMH, Brno, Czech Republic) equipped with an energy dispersive X-ray analyzer (EDS). Elemental mappings of Si, Al, Zn, and Cu were performed using the EDS. The electrical insulating performance of the rubbery composite pads was tested using a surface resistance checker (Surpa, model 385, Shenzhen, China).