Study of the Addition of a Thermoplastic Vulcanizate to a HDPE Composite Highly Filled with Magnesium Hydroxide and Its Effect on the Tensile and Flame Retardant Properties
Table 4
Tensile properties of the studied composites, with varying TPO/TPV contents.
Composites
Tensile properties (TS tensile stress)
TS at yield (MPa)
TS at break (MPa)
Elongation at yield (%)
Elongation at break (%)
Modulus (MPa)
Pure HDPE
8.4
26.2
78
540
496
Pure TPO
7.8
12.1
230
610
105
Pure TPVa
12.8
16.2
248
750
200
TPO-00
14.0
14.5
28
30
—
TPO-10
18.2
24.3
120
155
1580
TPO-20
19.5
26.2
280
320
1250
TPO-30
20.4
24.2
305
330
1090
TPO-40
20.8
26.5
300
340
1135
TPV-00
14.0
15.0
30
35
—
TPV-10
19.2
26.4
110
130
1560
TPV-20
19.5
23.8
270
290
1150
TPV-30
21.4
25.4
275
305
1060
TPV-40
22.8
26.2
290
335
1080
aThis pure TPV and the TPV in all composites are a blend of EPDM/HDPE, (60/40 wt%), crosslinked with 0.10 phr Luperox. All 10 composites have 0 to 40 wt% TPO/TPV and 130 phr Mg(OH)2 as in Table 3.
