Presafer (Qingyuan) Phosphor Chemical Co., Ltd.
P-N Intumescent Flame Retardant
PreniphorTM EPFR-100D for Polypropylene
Introduction:
PreniphorTM EPFR-100D, mainly contains N and P, is a kind of halogen free environmentally friendly flame retardant
for polyolefin. It has been developed especially for various PP products, and can be used in other polyolefin products
as well. Containing acid source, gas source and carbon source, PreniphorTM EPFR-100D takes effect by char formation
and intumescent mechanism. PP with PreniphorTM EPFR-100D can pass the tests of UL 94 V-0 (0.75mm),
70℃×168hours water-immersion (UL746C). Besides, it can also pass the test of GWIT 750℃ and GWFI 960℃. And
it is free from the restrictions of RoHS Directive 2002/95/EC approved by the EU and the Council. The products with
PreniphorTM EPFR-100D are characterized by low density, smooth appearance, low smoke generation and less mold
corrosion. PE with PreniphorTM EPFR-100D, in some degree, may lead to the phenomenon of water-sliding surface
during the process of extrusion. However, PP with PreniphorTM EPFR-100D will not meet this situation. Compared
with PreniphorTM EPFR-100A, PreniphorTM EPFR-100D doesn’t contain anti-dripping agent.
Index:
Test
Item
Unit
Target Value
Appearance
——
White Powder
Density
g/cm3
～1.8
Average Particle Size
μm
10～15
Nitrogen Content
%（w/w）
～22
Phosphorous Content
%（w/w）
～24
Decomposition Temp
℃
≥250
Water Solubility
%（w/w）
≤0.5
Water Content
%（w/w）
≤0.5
DS1)
TD2)
Note：
1) DS (Delivery specification): The product is monitored on a regular basis to ensure that it adheres to the
specified values.
2) TD (Technical data): The technical data are used solely to describe the product and are not subject to regular
monitoring.
3)
means selected.
RECOMMENDED DOSAGE:
Polymer
EPFR-100D Dosage
PP
%
Flame Retardancy UL 94
PP
PP
32
28
22
V-0 (0.75mm)
V-0 (1.5mm)
V-0 (3.0mm)
Presafer (Qingyuan) Phosphor Chemical Co., Ltd.
Extrusion Process: (Twin Screw Extruder)
Measure
-ment
Section
Polymer+EPFR-100D
Exhaust
Vacuum
Homoge
-nizing
Section
Mixed
Section
Melt
conveying
Section
Melting
Section
Notes:
1. Because the decomposition temperature of PreniphorTM EPFR-100D in nitrogen is 250℃, the processing
temperature of twin screw extruder can be adjusted in accordance with the actual need. Under the condition of
making PreniphorTM EPFR-100D dispersed and mixed homogeneous, the processing temperature should not be
too high so that it can avoid decomposition of the flame retardant resulting in slight foaming. The sieve should be
removed during the process of extrusion, or it’s easy to get foamed. Maintain vacuum of the twin screw extruder
during the processing is also needed.
2. Choose the resin with suitable melting index in accordance with particular situation so that it is convenient for
the processing of twin screw extrusion, injection moulding and so on.
3. If the dosage of carbon black is higher than 0.5%, the flame retardant performance will be weakened. Adding
inorganic substances (glass fiber, calcium carbonate, talc, barium sulfate and so on) will affect the flame retardant
performance. Adding additives containing Br, Cl (etc.) will lead to ineffectiveness of flame retardant.
Presafer (Qingyuan) Phosphor Chemical Co., Ltd.
Recommended Screw Combination:
Extruder36
Extruder75
（Total thread block:40, screw length:1274mm）
DIE
（Total thread block: 48, screw length:3164mm）
DIE
1
56/56
2
56/56
3
56/56
392mm
4
56/56
5
72/72
6
96/96
Vacuum
7
96/96
8
96/96
9
45°/5/36L
10
60°/4/56
11
45°/5/56
12
56/56
13
56/56
14
90°/5/56
15
45°/5/56
16
56/56
17
72/72
18
45°/5/36L
1320mm
19
90°/5/56
20
60°/4/56
21
45°/5/56
22
56/56
23
72/72
24
96/96
25
90°/5/56
26
45°/5/56
27
45°/5/56
28
56/56
29
72/72
Inlet of glass fiber (closed)
30
72/72
31
56/28L
32
45°/5/56
33
45°/5/96
34
56/56
35
56/56
36
72/72
37
45°/5/56
38
45°/5/96
1132mm
39
56/56
40
56/56
41
72/72
42
72/72
43
72/72
44
96/96
45
96/96
46
96/96
47
96/96
Material inlet
48
56/56
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
22/22
22/22
22/22
22/22
22/22
32/32
48/48
48/48
12/12L
30°/7/48
32/32
32/32
32/32
32/32
32/32
32/32
45°/5/32
45°/5/32
48/48
48/48
48/48
22/22
45°/5/32L
22/22
22/22
45°/5/32
45°/5/32
22/22
22/22
32/32
45°/5/32
30°/7/48
22/22
22/22
22/22
32/32
32/32
32/32
39
48/48
40
48/48
142mm
Vacuum
364mm
Inlet of glass fiber
(closed)
480mm
Material inlet
Remarks: The shear force of No. 75 is stronger; the screw combinations above can be adjusted in accordance
with processing situation.
Package & Storage:
25kg/package. Transported as the common chemicals. Keep in dry, cool place and avoid direct sunlight.
Presafer (Qingyuan) Phosphor Chemical Co., Ltd.
Enclosure: Application Examples
1. Formula:
MATERIAL
FORMULA A
FORMULA B
HOMOPOLYMERIZED PP(H110MA)
687
0
COPOLYMERIZED PP(EPC30R)
0
687
INTERNAL LUBRICANT EBS
3
3
EXTERNAL LUBRICANT PE WAX
3
3
ANTIOXIDANT B215
2
2
COUPLING AGNET NT201
3
3
ANTI-DRIPPING AGENT (T F 1645 H)
2
2
PreniphorTM EPFR-100D
300
300
2. Process Technology:
Model：
Twin Screw Extruder 36
The shear numbers before fiber entry：
45°/5/32 5 blocks 30°/7/48 2 blocks 45°/5/32L 1 block
Extruding temperature of main machine（℃）
： 160 180
Rotation speed of main machine：
190 190 200 200 190 190 180
240～360rpm
3. Main Properties:
0.90
FORMULA
A
1.06
FORMULA
B
1.06
9.8
8.2
6.8
5.6
℃
95
80
125
115
ASTM D-638
MPa
34
28
28
21
ELONGATION AT BREAK
ASTM D-638
%
87
124
58
95
FLEXURAL STRENGTH
ASTM D-790
MPa
37
30
41
32
FLEXURAL MODULUS
IZOD IMPACT STRENGTH,
NOTCHED
ASTM D-790
MPa
1343
1138
2406
2004
ASTM D-256
J/m
26
71
26
37
1.5mm
NG
NG
V-0
V-0
3.0mm
NG
NG
V-0
V-0
GWIT
3.0mm
NG
NG
750℃
750℃
GWFI
3.0mm
NG
NG
960℃
960℃
1.5mm
NG
NG
V-0
V-0
3.0mm
NG
NG
V-0
V-0
PROPERTIES
TEST METHODS
UNIT
H110MA
EPC30R
DENSITY
MELT INDEX
(230℃/2.16kg)
HDT(0.45MPa)
ASTM D-792
g/cm3
0.91
ASTM D-955
g/10min
ASTM D-648
TENSILE STRENGTH
UL 94
FLAME RETARDANCY
FR AFTER
70℃×168h
WATER-IMMERSION
UL746C
Presafer (Qingyuan) Phosphor Chemical Co., Ltd.
4. Electric Performance:
No.
Test item
Test method
Test condition
Result
Dielectric
breakdown
voltage
ASTM D149-09
Method A
Surround medium:10#transformer oil
Temperature: 23±2℃，Electrode: φ51mm
Rate-of-rise:500V/s，Specimen thickness:2.57mm
>50 KV
(see note)
Volume
resistivity
ASTM D257-07
Specimen thickness:3.02mm，
Condition: 23±2℃,50±5%RH
Applied voltage:1000V，Electrification time:1min
3.5×1016
Ω·cm
Dielectric
breakdown
voltage
ASTM D149-09
Method A
Surround medium:10#transformer oil
Temperature: 23±2℃，Electrode: φ51mm
Rate-of-rise:500V/s，Specimen thickness:2.57mm
>50 KV
(see note)
Volume
resistivity
ASTM D257-07
Specimen thickness:3.00mm，
Condition: 23±2℃,50±5%RH
Applied voltage:1000V，Electrification time:1min
3×1016
Ω·cm
Dielectric
breakdown
voltage
ASTM D149-09
Method A
Surround medium:10#transformer oil
Temperature: 23±2℃，Electrode: φ51mm
Rate-of-rise:500V/s，Specimen thickness:2.57mm
>50 KV
(see note)
Volume
resistivity
ASTM D257-07
Specimen thickness:3.01mm，
Condition: 23±2℃,50±5%RH
Applied voltage:1000V，Electrification time:1min
2×1016
Ω·cm
Dielectric
breakdown
voltage
ASTM D149-09
Method A
Surround medium:10#transformer oil
Temperature: 23±2℃，Electrode: φ51mm
Rate-of-rise:500V/s，Specimen thickness:2.58mm
10.5 KV
Volume
resistivity
ASTM D257-07
Specimen thickness:3.02mm，
Condition: 23±2℃,50±5%RH
Applied voltage:1000V，Electrification time:1min
9×1011
Ω·cm
Dielectric
breakdown
voltage
ASTM D149-09
Method A
Surround medium:10#transformer oil
Temperature: 23±2℃，Electrode: φ51mm
Rate-of-rise:500V/s，Specimen thickness:2.60mm
9.5 KV
Volume
resistivity
ASTM D257-07
Specimen thickness:3.06mm，
Condition: 23±2℃,50±5%RH
Applied voltage:1000V，Electrification time:1min
1×1010
Ω·cm
A
B
C
D
E
Note：No breakdown occurred when it reached its maximum voltage of the tester (50KV).
A
Injecting samples of formula A.
B
Put sample A in water with temperature of 23±2℃ and moisture of 50±5%RH for 168hours.
C
Put sample A in water with temperature of 23±2℃ and moisture of 50±5%RH for 336hours.
D
Put sample A in water with temperature of 80±2℃ for 24hours.
E
Put sample A in water with temperature of 80±2℃ for 120hours.
Note: All the application data above are the typical data of PreniphorTM EPFR-100D.
It was written and explained by the technical department of Presafer(Qingyuan) Phosphor Chemical Company Ltd. and the right of
revision was reserved by us. Please refer to the latest version for the product information. Version 1.4, updated in September, 2014.
For more information, please visit www.presafer.com .