Table 2. The WA and MC of different SPI-based films.

Specimen	WA (%)	MC (%)
SPI	82.25	12.84
SPI/PVA	87.35	12.28
SPI/PTGE	77.98	11.86
SPI/HNTs	70.60	11.04
SPI/HNTs/PVA/PTGE	78.06	11.50