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Italmatch GroupFlame retardants and plastic additives
December 2016
Advanced Flame Retardants Intumescent
Systems for Polyolefins based on
Phoslite TM Technology
Italmatch FR Advanced Intumescent Systems based on Phoslite 2
Flame retardants and plastic additives | December 2016
Code UL-94 1,6mm at
25% on PP homo
(without
antidripping)
LOI at
25% on
PP homo
Processing
temperature (same
conditions)
EXP PP/35 V0 34,5 % 230°C
EXP PP/36 V0 33,2 % 240°C
EXP PP/37 V2 (V0 at 30%) 31,5 % 250°C
• Registered in USA, China, Korea, Australia. Ongoing REACHregistration in Europe.
• 100% of Chemicals manufactured by Italmatch Chemicals by basicraw materials
MSDS:
causes serious eyes irritation / harmfull to acquatic life with long lastingeffects
Italmatch FR char formation in cone calorimeter test 3
Flame retardants and plastic additives | December 2016
0
200
400
600
800
1000
1200
1400
1600
0 50 100 150 200 250 300 350 400
RH
R (
kW
/m2
)
Time (sec)
Irradiance: 50 kW/m2Residue after test
PP homo EXP PP/35
PP homo EXP PP/36
PP homo EXP PP/37
PP homo DBDPE/ATO
PP homo
Italmatch FR compounds FR properties : comparison with different intumescent references 4
1 2 3 (ref) 4 (ref) 5 (ref) 6 (ref)
PP homo 74,6% 74,6% 74,6% 69,6% 74,6% 69,6%
EXP PP/35 25%
EXP PP/36 25%
Intumescent ref. 1 * 25% 30%
Intumescent ref. 2 ** 25% 30%
Irgafos 168 0,2% 0,2% 0,2% 0,2% 0,2% 0,2%
Irganox 1010 0,2% 0,2% 0,2% 0,2% 0,2% 0,2%
UL 94 rating (1,6 mm) V0 V0 V2 V0 V2 V0
LOI (%) 34,5 33,2 32,9 -- 34,7 --
Delta LOI after water
immersion 80°C (%)
-7,4 -3,1 -4,5 -2,9
Weight increase after 4
d water immersion 80°C
1,2% 0,7% 1,6% -- 0,9% --
*APP/ synergic oligomer nitrogen containing** Nitrogen pyrophosphate proprietary mixture
5
Flame retardants and plastic additives | December 2016
Italmatch FR compounds FR properties:comparison in different PO resins
PP
homo
PP
copo
HDPE LDPE LLDPE EVA
MFI (g/10min) 12 15 8 3,5 27 12
EXP PP/35 (%) 20 25 25 30 25 30 22,5 25 30 35 25 32,5
UL94 (1,6mm) V2 V0 V2 V0 NC V0 V0 V0 V2 V0 V2 V0
UL94 (3,2mm) V0 -- V0 -- V0 -- -- -- V0 -- V0 --
LOI (%) 31 34 35 39 -- 34 -- 32 -- 38 30 35
In terms of quantity % of FR need:
LLDPE≈HDPE>EVA≈PP copo>PP homo≈LDPE
Italmatch FR compounds FR properties: glass Fibers PP 6
Measure Item Standard Unit PP 30% GF
20% EXP PP/37
PP GF 30%
Density ISO1133 gr/cc 1.33 1.12
Tensile strength ISO527 MPa 54 85
MEF ISO178 MPa 5500 6500
Izod Notched ISO180 KJ/m2 7 9.5
MFI ISO1133 g/10’ 4 8
UL-94 (1,6mm) - V0 NC
Flame retardants and plastic additives | December 2016
Italmatch FR colour stability at high temperature (260°C) 7
Unchanged colour at high temperature
Flame retardants and plastic additives | December 2016
Italmatch FR surface resistivity of compounds8
Flame retardants and plastic additives | December 2016
Time: EXP PP/37 Intumescent ref. 1* Intumescent ref. 1*
silane treated
0 day 1,4 X 10 16(Ω) 0,5 X 10 16 (Ω) 1,2 X 10 16 (Ω)
7 days 1,6 X 10 16 (Ω) 0,3 X 10 16 (Ω) 1,5 X 10 16 (Ω)
14 days 1,4 X 10 16 (Ω) 5,5 X 10 9 (Ω) 0,6 X 10 14(Ω)
21 days 1,2 X 10 16 (Ω) BLOOMING ** 0,5 X 10 13 (Ω)
28 days 0,8 X 10 16 (Ω) BLOOMING **
42 days 1,2 X 10 16 (Ω)
*APP/ synergic oligomer nitrogen containing
** surface sticking, resistivity not measurable
Conditions: PP copo 28% FR, injection molded 2 mm thick, climaticchamber 80°C , 80% relative humidity, according to ASTM D257
Italmatch FR : corrosivity test method 9
Flame retardants and plastic additives | December 2016
Conditions: 50% FR PP homo compound, no antiacids
PLATELET MASS LOSS
-apparatus: braebender mixer
-platelet: zinc coated sheet 0,5µ
-processing temperature: 260°C
-mixing time: 40 min
Bromine/Sb2O3
APP based
EXP PP/37
Italmatch FR : metal corrosion 10
Flame retardants and plastic additives | December 2016
40
734
0,3 0,10
10
20
30
40
50
Bromine /Sb2O3 APP based EXP PP/35,36,37
Ma
ss lo
ss (
mg
)
Metal corrosion of different FR compoundsin the melt at different temperatures
260°C 210°C
Conditions: 50% FR PP homo compound, no antiacids
11
Masterbatch and compound preparation on twin screw extruder: principle and conditions
Transportationzone
Melt up polymer
Filler introduction
Distributive mixing
Atmosphericvent
Dispersivemixing & seal
Vacumvent
Pressurebuild up
BARREL
Temperature: T1 T2 T3 T4 T5 T6 T7 T8 T9 T10
(°C) (°C) (°C) (°C) (°C) (°C) (°C) (°C) (°C) (°C)
165 165 190 190 205 205 205 205 205 208
PP pellet (80-35%) EXP PP/35,36,37 powder (20%-65%)
• Screw design should be designed to avoid high temperatures / intensive shear• FR dosing in the melt by lateral dowstream dosing, or in first hopper by polymer powder / FR powder pre mix
Flame retardants and plastic additives | December 2016
