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Discussion of the results obtained



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Discussion of the results obtained
. With the introduction of compounds containing silicon 
and nitrogen, the amount of phosphorus required to give the material the required fire resistance 
can be reduced, while the synergistic effect of the system increases fourfold. Apparently, this can 
be explained by a decrease in the access of oxygen to the combustion zone of the material, due to 
the free nitrogen released during pyrolysis. In the course of the research, new phosphorus, silicon 
and nitrogen-containing swelling oligomeric flame retardant brand IOP-1 have been developed, 
which promotes swelling and coke formation of polymer compositions when exposed to flame, as 
well as increasing their heat-shielding properties to fire. The preparation and research of fire 
retardant expanded polymer composites used epoxy resin ED-20, curing was carried out using 
polyethene polyamine, and an intumescent (intumescent) flame retardants, phosphorus-containing 
compounds (usually ammonium polyphosphates) were catalysts for the coke formation process, 


444 
and the filler was nano-sized aluminium hydroxides, and the filler was nano-size aluminium 
hydroxides foaming agents (blowing agents). The obtained sample of fire retardant expanded 
polymer composites based on epoxy resin, as well as the initial substances, were investigated by 
IR spectroscopy (Nicolet 5700), thermogravimetric analysis (TG) (SDT Q600) of physical and 
chemical properties and determination of fire retardant efficiency according to GOST R 53295-
2009. 
In our Republic, it is urgent to create effective oligomeric fire retardants based on local raw 
materials, as well as from waste and by-products of chemical and mining and metallurgical 
industries. Obtaining new polyfunctional fire retardant expanded polymer composites based on 
epoxy resin ED-20, with the joint introduction of which into oligomeric binders, a synergistic 
effect is observed. 
The obtaining new fire retardant was expanded polymer composites for fire resistance of 
metal structures, with the high fire retardant efficiency, environmentally friendly and economical 
is an urgent task today. 
It has been studied, IR spectroscopy (Nicolet 5700), thermogravimetric analysis (TG) (SDT 
Q600) and physic-mechanical physicochemical properties of flame retardant expanded polymer 
composites. 
The preparation and study of the process of fire retardant expanded polymer composites 
used epoxy resin ED-20, curing was carried out using polyethene polyamine, and an intumescent 
(intumescent) flame retardants, phosphorus-containing compounds (usually ammonium 
polyphosphates) were catalysts for the coke formation process, filler, nanosize of the aluminium 
hydroxides - foaming agents (blowing agents). 
In the comparison, some data from the results obtained are given. Table 1 shows that, under 
optimal conditions, fire retardant expanded polymer composites. These polymer composites are 
characterized by physical and chemical properties. (1-greedy). 
Table 1. 

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