High-Strength Hollow Glass Microsphere/Epoxy Resin Composite Insulation Materials for Deep In-Situ Condition Preserved Coring

Figure 7

TG curves of the HGM/EP composite insulation materials. The initial thermal decomposition temperatures of the HGM/EP composite insulation materials with HGM volume fractions of 10 vol%, 20 vol%, 30 vol%, 40 vol%, 50 vol%, and 60 vol% were 354.3°C, 351.7°C, 356.5°C, 356.5°C, 353.9°C, and 356.0°C, respectively. The ending thermal decomposition temperatures were 392.1°C, 396.3°C, 395.5°C, 394.4°C, 394.5°C, and 394.8°C, respectively.