UNIPLEX FRX-5028
Tetrabromo-bis-Phenol S Dibromopropyl Ether
CAS No. 42757-55-1
Description:
An off-white melt-processable solid additive flame retardant containing
66% aliphatic/aromatic bromine. Polypropylene systems compounded
with Uniplex FRX-5028 achieve UL-94 V-2 and V-0 ratings at low additive
levels with essentially no blooming or exudation.
Applications:
Flame Retardant Polypropylene Molding Compounds
Flame Retardant Polypropylene Fiber
Typical Properties:
Bromine Content (%) 66 min
Thermal Stability (5% Loss) 310ºC
Specific Gravity 2.29
Molecular Weight 966
General Specifications:
Appearance Off-white powder
APHA Color (10% in DMF) 150 max.
Melting Point (DSC) 105ºC min.
Volatiles (%, 2 hours 110ºC) 0.2 max.
Health & Safety:
Refer to Material Safety Data Sheet (MSDS)
Uniplex FRX 50-28
Date Issued: 6/18/09
www.unitexchemical.com
Page 1 of 2
Supersedes: 6/13/00
Solubility (g/100g Solvent at 25ºC):
Water Insoluble
Acetone Soluble
Isopropanol Soluble
Xylene Soluble
Applications:
The recommended starting points for compounding flame retardant polypropylene compounds
are:
Polypropylene Homopolymer
(Weight %)
Uniplex
FRX-5028
(Weight %)
Antimony
Trioxide
(Weight
%)
UL-94
Rating
1/8” Test
Bar
LOI
100
3
1.5
V-2
28.0
100
5
2.5
V-2
29.8
100
8
4
V-0
30.7
100
10
5
V-0
18.8
100
0
0
H-B
18.8
Aging Weight Loss Comparison:
Samples were compounded in Polypropylene at 200ºC, extruded and molded into test bars at 3
mm thick. Samples were maintained at 120ºC in a vented oven for seven days. Weight loss
was determined gravimetrically. The results are in the table below:
Flame Retardant FR Loading (Weight %) Loss in Weight (Weight %)
Control
0
1.0
Great Lakes PE-68
10
12.7
Uniplex FRX-5028
10
1.5
These suggestions and data are based on information we believe to be reliable. They are offered in good faith, but
without guarantee, as conditions and methods of use of our products are beyond our control. We recommend that
the prospective use determine the suitability of our materials and suggestions before adopting them on a
commercial scale. Suggestions for uses of our product should not be understood as recommendations that they be
used in violation of any patents.
Uniplex FRX 50-28
Date Issued: 6/18/09
www.unitexchemical.com
Page 2 of 2
Supersedes: 6/13/00
