Effect of Nanometric Metallic Hydroxides on the Flame Retardant Properties of HDPE Composites

Table 1

Compositions studied (all amounts are in phr; parts per hundred parts of resin).

Compositions^a,b	HDPE	EPDM	MH	ATH	MH	ATH
			μm		nm
M1	90	10	—	—	130	—
M2	90	10	32	—	98	—
M3	90	10	65	—	65	—
M4	90	10	98	—	32	—
M5	90	10	130	—	—	—
A1	90	10	—	—	—	130
A2	90	10	—	32	—	98
A3	90	10	—	65	—	65
A4	90	10	—	98	—	32
A5	90	10	—	130	—	—
MA2	90	10	—	—	98	32
MA3	90	10	—	—	65	65
MA4	90	10	—	—	32	98

All compositions contain 0.2 phr silicon lubricant plus 0.15 phr antioxidant.
M compositions with micro- and nano-MH. A compositions with micro- and nano-ATH.
MA compositions with mix of nano-MH and nano-ATH.