Effect of Die Head Temperature at Compounding Stage on the Degradation of Linear Low Density Polyethylene/Plastic Film Waste Blends after Accelerated Weathering

Table 2

Colour parameters and total change in colour () for studied formulations at different accelerated weathering exposure (hours) processed at a DHT = 175°C.

Materials (wt.%/wt.%)	Exposure duration (hours)
V (100 LLDPE/0 waste)	48	27.0
	72	26.6
	120	26.0
	168	28.6
	216	26.1
	264	29.1
	360	28.5
B1 (90 LLDPE/10 waste)	48	27.9
	72	24.4
	120	27.7
	168	27.4
	216	26.7
	264	19.0
	360	31.1
B2 (75 LLDPE/25 waste)	48	26.4
	72	24.4
	120	26.4
	168	26.1
	216	26.5
	264	28.2	−0.1	−5.0
	360	26.8	0.05	−5.0
B3 (50 LLDPE/50 waste)	48	28.6	−0.7	−7.0
	72	26.6	−0.3	−6.6
	120	24.5	−0.1	−6.5
	168	22.2	−0.2	−6.0
	216	24.4	−0.2	−6.0
	264	28.2	0.0	−6.2
B4 (25 LLDPE/75 waste)	48	22.4	−0.5	−5.4
	72	22.2	−0.1	−6.2
	120	21.3	−0.1	−6.0
	168	21.8	−0.2	−6.2
	216	22.2	−0.2	−6.0
	264	24.2	0.05	−6.3
B5 (10 LLDPE/90 waste)	48	19.0	−0.5	−6.2
	72	19.0	−0.5	−6.2
	120	20.2	−0.1	−5.9
	168	19.8	−0.2	−5.7
	216	19.3	−0.1	−5.7
	264	19.0	0.1	−5.7