UNIPLEX M8M
Melamine Molybdate
CAS RN 65235-34-9
Description:
A fire and smoke suppressant additive for flexible and rigid PVC
compounds. This product may be also useful in a number of different
polyolefin and polyamide applications as a synergist with melamine-based
non-halogen flame retardants.
Applications:
Rigid and Flexible PVC compounds
Flexible halogenated alloys (e.g. PVC/PVDF)
Non-halogen Polyolefinic compounds
Non-halogen glass-filled Nylon compounds
Typical Properties:
Molybdenum Content (%) 45 min.
Thermal Stability (5% Loss) >300°C
Solubility (g/100g Solvent at 25
°
C):
Water Insoluble
Acetone Insoluble
Isopropanol Insoluble
Xylene Insoluble
Tetrahydrofuran Insoluble
General Specifications:
Appearance Off-white Powder
Particle Size, D
97
, Laser Diffraction 5 microns max.
pH,5 % in Water 5 - 8
Loss on Drying (2 hr, 135°C) 0.5 max.
Health & Safety:
Refer to Material Safety Data Sheet (MSDS).
Application Data:
This product is useful in both rigid and flexible formulations of halogenated vinyl resins as a
replacement for Ammonium octamolybdate as a smoke suppressant. Increased oxygen indices are
also found indicating improved flame resistance.
Uniplex M8M was compounded into rigid PVC at 200°C with Geon 30 PVC, 2 phr
Microthene 510 Lubricant, 2 phr Tin Thioglycolate Stabilizer and 2 phr Uniplex M8M. The
compound was compression molded and subjected to various tests with the results tabulated in
Table 1.
Uniplex M8M
Date Issued: 6/18/09
www.unitexchemical.com
Page 1 of 2
Supersedes: 12/15/00
TABLE 1 RIGID PVC COMPOUNDS
Example
Loading (phr)
Molybdenum
compound
Thermal
Stability (5%
Loss TGA)
Comound
Thermal
Stability (min)
Oxygen
Index
%Smoke
Reduction (Dmc
in ASTM E-662)
Control
None
---
>120
45
----
Uniplex
M8M
2
380°C
>120
49
87
Flexible PVC(Geon 30) compounds were prepared by dry blending additives with Geon 30 PVC
and then compounding in a two roll mill at 160°C. The compounds were compression molded and
tested. The results are tabulated in Table 2. The general purpose formula used was:
MATERIAL
LOADING (phr)
Geon 30 PVC
100
Uniplex 546-A
34
Uniplex FRP-45
40
Molybdate complex
2.5
Antimony Trioxide
2
Lead Stabilizer (Dythal XL)
7
TABLE 2 FLEXIBLE PVC COMPOUNDS
Example
Loading (phr)
Molybdenum
compound
Thermal
Stability (5%
Loss TGA)
Compound
Thermal
Stability (min)
Oxygen
Index
%Smoke
Reduction (Dmc
in ASTM E-662)
Control
None
---
>120
34
----
AOM
5
290°C
>120
39
30
Uniplex
M8M
5
380°C
>120
41
35
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 user 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 M8M
Date Issued: 6/18/09
www.unitexchemical.com
Page 2 of 2
Supersedes: 12/15/00
