Stage

Sample

Range of temperature/℃

Tmax/℃

Mass/%

Derivative mass/(%βˆ™minβˆ’1)

First stage

PVC

220.0~370.0

294.5

82.69

11.01

composites

200.0~350.0

295.0

61.23

0.81

Second stag

PVC

400.0~550.0

457.0

30.00

3.55

composites

350.0~550.0

447.8

25.76

0.35