1. Pigment Preparation
2. Additive Masterbatch
3. Color Masterbatch
4. Black Masterbatch
5. White Masterbatch
6. Special Effect Masterbatch
7. Flame Redardant Masterbatch
8. U.V. Masterbatch for Greenhouse film

The very effective flame retardant for polypropylene filament, fibers, tapes and films. Rangdaneh Sirjan flame retardant is a masterbatch which contains a bromine – containing organic compound with an effective synergist and a special stabilizer. The product can be applied at processing temperatures up to 230 C.

• Very good processability in thin films , fibers and tapes.
• Stabilization of the polymer mass against mfi degradation.
• Very effective at low concentrations such as 2 – 5 % .
• Good metering properties in the form of free flowing , non – dusting granules .
• Virtually non – corrosive .
• Practically no impairment of mechanical properties.
• Practically no dulling of fibers or tapes .
• Good possibility of light stabilization .
• Good compatibility with pigments normally used in p-p .
• No migration .
• Very good flame retardant effect without addition of antimony tioxide .

PROPERTIES

APPEARANCE:
YELLOWISH CYLINDRICAL GRANULES , NON – DUSTING AND FREE – FOLLOWING.

ACTIVE SUBSTANCE:
47.7 %

COMPOSITION:
BR : 29.0 %
SN : 1.5 %

HEAT STABILITY:
Rangdaneh sirjan flame retardant exhibits good heat stability up to 230 c, making if suitable for application in fibers, films and tapes .

STORAGE STABILITY:
The product exhibits good storage stability when kept in tightly closed packages in a cool and dry place .

 
APPLICATION CONCENTRATION

• THE APPLICATION CONCENTRATION OF A FLAME RETARDANT GENERALLY DEPENDS ON MANY FACTORS , E.G. .
• FIBER TITLE OR TAPE THICKNESS .
• POLYMER COMPOSITION , AMOUNT AND TYPE OF FILLERS , U.V. – STABILIZERS, PIGMENTS , ETC…
• STRUCTURE OF FINISHED ARTICLE MADE OF THE FIBERS .
• FR TEST METHODS TO BE PASSED .
• MFI OF THE POLYMER .

As a result, a general recommendation can not be given, the optimum concentration for each application must be determined in pre – trials. Experience has shown that the concentrations given for the following applications can be used as guidelines.

FURTHER PROPERTIES AND POSSIBLE INTERACTIONS

CORROSION

Rangdaneh sirjan flame retardant contains no sb2o3 as synergist and therefore exhibits a very favorable corrosion behavior with steel , as shown by the following test.
Corrosion according to ate 2003 after an addition of 5% Rangdaneh Sirjan flame retardant to polypropylene stabilized with 0.1% ca-stearate and 0.1% hostanox o 10.
3 mm thick pp plates containing the flame retardant were each pressed for 15 min at 240 c against highly polished steel plates to the type 316l with a pressure of 2 and 30 t. After wards the steel plates were stored for 24 hours at 100% r.h. and visual assessment was made of the rust development.

 
LIGHT STABILIZATION

In p-p without light stabilizers, Rangdaneh Sirjan flame retardant does not cause reduction of the light stability of the fiber, if light stabilizers are added , the influence of the flame retardant on the effect of the light stabilizing agent must be tested.
Generally it is not advisable to use HALS type light stabilizers, as they are normally not compatible with organic halogen compounds.

Neither an influence on the shade of pigments nor dulling effects should be expected when using Rangdaneh Sirjan flame retardant in there commended concentrations, also influences of pigments to the flame retardant efficiency of the product are unlikely, however, all pigments used in combination with rangdaneh sirjan flame retardant should be tested in pre-trials.

As the gas fading behavior can be strongly influenced by spin finishes and stabilization systems, it is recommended to carry out tests with the final products containing Rangdaneh Sirjan flame retardant.

FIGURE 1 : LOI VALUES ( ACCORDING TO ASTM D 2863 ) IN FUNCTION OF RANGDANEH SIRJAN FLAME RETARDANT CONCENTRATION DETERMINED ON P-P PLATES OF 3 mm THICKNESS , AFTER AN INITIAL STEEP RISE THE LOI GRADUALLY FLATTENS OUT AT ABOUT 6% RANGDANEH SIRJAN FLAME RETARDANT .