Composites from Thermoplastic Natural Rubber Reinforced Rubberwood Sawdust: Effects of Sawdust Size and Content on Thermal, Physical, and Mechanical Properties

Table 1

Formulation of TPNR and TPNR/RWS composites in experiment.

Sample code	RWS size (mesh)	Sample code	RWS size (mesh)	Thermoplastic natural rubber (wt%)				RWS (wt%)
				R60/P40	R50/P50	R40/P60	R30/P70
R6P4	—	—	—	100	—	—	—	—
R6P4W30L	40	R6P4W30S	80	70	—	—	—	30
R6P4W40L	40	R6P4W40S	80	60	—	—	—	40
R6P4W50L	40	R6P4W50S	80	50	—	—	—	50
R6P4W60L	40	R6P4W60S	80	40	—	—	—	60
R5P5	—	—	—	—	100	—	—	—
R5P5W30L	40	R5P5W30S	80	—	70	—	—	30
R5P5W40L	40	R5P5W40S	80	—	60	—	—	40
R5P5W50L	40	R5P5W50S	80	—	50	—	—	50
R5P5W60L	40	R5P5W60S	80	—	40	—	—	60
R4P6	—	—	—	—	—	100	—	—
R4P6W30L	40	R4P6W30S	80	—	—	70	—	30
R4P6W40L	40	R4P6W40S	80	—	—	60	—	40
R4P6W50L	40	R4P6W50S	80	—	—	50	—	50
R4P6W60L	40	R4P6W60S	80	—	—	40	—	60
R3P7	—	—	—	—	—	—	100	—
R3P7W30L	40	R3P7W30S	80	—	—	—	70	30
R3P7W40L	40	R3P7W40S	80	—	—	—	60	40
R3P7W50L	40	R3P7W50S	80	—	—	—	50	50
R3P7W60L	40	R3P7W60S	80	—	—	—	40	60

Note: NR/HDPE ratios of 60/40 (R60/P40), 50/50 (R50/P50), 40/60 (R40/P60), and 30/70 (R30/P70). RWS: rubberwood sawdust; wt%: percent by weight.