Table 1

Table 2

Figures at a glance

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Table 1

Particleboards	PVC35565	PGL35565
Thermal conductivity λ (W/m K)	λPVC35565= 0.029	λPGL35565=0.038
Thermal strength R (m2K/W)	RPVC35565=0.689	RPGL35565=0.526

Table 1: Summary of the thermal strength and thermal conductivity values of PVC35560 and PGL35560

Table 2

PVC35560	Temperature T (°C)	T<150°C	150°C<T<380°C	380°C<T<900°C
PVC35560	Formed products	H2O	CO, CO2, HCOOH CH3COOH	CH3COOH, HCOOH CH2O CO, CH4
PGL35560	Temperature T (°C)	T<240°C	240°C<T<480°C	480°C<T<900°C
PGL35560	Formed products	H2O	CO, CO2, HCOOH CH3COOH	CH3COOH, CH2O HCOOH, CO, CH4

Table 2: Main gaseous compound detected during the pyrolysis of PVC35560 and PGL35560

FIGURE 1

Figure 1:Formation of 2-hydroxy-5-hydroxymethyl furan

FIGURE 2

Figure 2:: Internal Bond strength of various particleboards
With: PVC35560: Particleboards based resin containing 35% tannin + 5% vachellia nilotica exudates as bio hardener + 60% water. PGL35560: Particleboards based resin containing 35% tannin + 5% glyoxal as hardener + 60% water.

FIGURE 3

Figure 3:TG and DTG curves of pyrolysis analysis of PVC35560

FIGURE 4

Figure 4:TG and DTG curves of pyrolysis analysis of PGL 35560

FIGURE 5

Figure 5:TG curves comparative

FIGURE 6

Figure 6:FT-ATR MIR spectrum of azadiratcha indica tannin in the range 1840 and 600 cm−1