Optimization of Flame Retarded PP-Copolymer Compounds. By: Or Kariv Advisors: Dr. Fabian Rios Yoav Bar-Yaakov, Bromine Compounds LTD. Objectives. Finding an optimal formulation of PP copolymer with bromine based FR. Studying the influence of the FR on the compound’s properties.
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Optimization of Flame RetardedPP-Copolymer Compounds
By: Or Kariv
Advisors: Dr. Fabian Rios
Yoav Bar-Yaakov, Bromine Compounds LTD.
Aromatic compounds high thermal stability
Aliphatic compounds high flame retardant efficiency
Tris- tribromoneopentyl phosphate
Chain Scission & Flame poisoning: a competing reaction of HBr, with the radicals to create a less reactive radicals.
Selecting the optimal formulation
LOI- limited oxygen index
HDT- heat deflection temperature
by causing the crystallinity degree to decrease
MFI- melt flow index
Izod impact test
Particles locate at amorphous phase and cause stress concentration
Choosing optimal formulation
Balance between additives concentrations and properties
14% Br, 1.6% C-C
A six variables, two level screening design
Smaller than experimental error → 0
Marginal → 0
Ita Finberg, Yaniv Hirschsohn, Izik, Meir & Smadar
Dr Iftah Nir, Dr Amos Ofir & Dr Anna Dotan
And especially to
Dr Fabian Rios from Shenkar
Yoav Bar- Yaakov and Racheli Rotem from ICL-IP