Multilayer agreeporosity polymeric material

 

(57) Abstract:

Usage: multilayer agreeporosity polymeric material can be used in the construction, automotive, chemical engineering. The inventive multilayer agreeporosity polymeric material consists of organoplastic or fiberglass, modified stimulants carbonation - a mixture of red phosphorus and metavanadate barium, carbonized layer and the coating containing epoxygenase resin ED-20, ammonium polyphosphate, urea resin KF-W, amine hardener, the polyethylenepolyamine and product dehydropolycondensation phenanthrene containing chromium. The composition was obtained by simple mixing of the components. Coating and the samples were received in bulk. A specific ratio of components in the coating ensures efficiency and reliability of the fire heat shield while maintaining the physico-mechanical properties of the products of organo - and fiberglass. table 1.

The invention relates to the production of organo - and fiberglass to protect against thermal factors defeat an open flame and intense heat fluxes and can be used in construction, autodia multilayer agreeporosity polymeric material, consisting of organoplastic or fiberglass, modified stimulator carbonation - a mixture of red phosphorus and metavanadate barium in the ratio of 4:1. On the surface organoplastic or modified fiberglass was created carbonized layer by repetition, the effects of thermal pulses (with a duration of a single exposure 30). This carbonized layer on the surface of products from organoplastic get at 4-6 times the heat pulse with a power density 38-40 watts/cm2. Carbonized layer on the surface of articles made of glass-reinforced plastics obtained when 6-fold effect of thermal pulses with a power density 46-48 W/cm2. On the surface formed of carbonized layer was applied polymer composition comprising: epoxygenase resin ED-20; ammonium polyphosphate, urea resin KF-W; amine hardener - polyethylenepolyamine, which under the action of fire and heat sources were inflated, forming foamcoke [Patent RU 2010620, CL 05 D 3/00, 1994].

A disadvantage of the known multilayer fire-resistant polymer material are not sufficiently high resistance and Teplofizika thermal conductivity of the fiberglass above, than organoplastic, there is a need to use the stimulator carbonization for fiberglass. For organoplastic the use of stimulant carbonization not necessarily, because when exposed to heat flow is formed on the surface of the coke layer. In addition, such surfaces are difficult to obtain foamcoke using coating thickness 1 mm

The aim of the invention is to improve the efficiency, reliability, fire heat shield, increasing the heat capacity at elevated temperatures while maintaining the physico-mechanical properties of products made from organic or fiberglass and foam coke receiving when exposed to heat flow on the coating thickness 1 mm

This objective is achieved in that the multilayer agreeporosity polymeric material consisting of organoplastic or fiberglass, modified stimulator carbonation - a mixture of red phosphorus and metavanadate barium in the ratio of 4:1, carbonized layers and coatings containing: epoxygenase resin ED-20; ammonium polyphosphate, urea resin KF-W; amine hardener a polyethylenepolyamine, differing in that the composition additionally introduced the product dihydrofolic the maul ED-20 - 59,89-81,97

Ammonium polyphosphate - 4,098-23,95

Urea-formaldehyde resin KF-W - 0,82-2,99

Product dehydropolycondensation phenanthrene containing chromium - 0,82-4,19

The polyethylenepolyamine - 8,98-12,3

Comparative analysis of the prototype allows us to conclude that the claimed composition of the flame retardant polymer composition is different from the known to the introduction of a new component, namely the product of dehydropolycondensation phenanthrene containing chromium. Thus, the claimed technical solution meets the criterion of "novelty". Analysis of the known compositions flame retardant polymer compositions showed that the solution introduced in the present, it is unknown, for example the introduction of product dehydropolycondensation phenanthrene containing chromium. The introduction of advanced flame retardant polymer composition of the product dehydropolycondensation phenanthrene containing chromium, in combination with other components can improve the fire retardant properties due to the increase in the specific heat, with the increase of the true density and strength of the coke residue, ignition timing and reducing the time of self-burning.

Thus, this composition gives a multilayer ognezashita "inventive step".

In flame retardant coating (OGSP) as panoramaoptions used ammonium polyphosphate (APF) as of koksoobrazovaniya urea-formaldehyde resin KF-W, as a binder epoxygenase resin ED-20, to increase the density of coke used the product dehydropolycondensation phenanthrene containing chromium. Was utverjdali amine hardener - polyethylenepolyamine. The composition was obtained by simple mixing of the components. The coating was obtained by filling.

To obtain product dehydropolycondensation phenanthrene containing chromium (uglerodvodorodsoderzhaschih tubulin), using phenanthrene as active media - eutectic melt containing chromium chloride.

Process duration - 2.5 hours, the temperature C. The process was completed to achieve the reaction mixture sustainable dyeing black and aging for 3 hours.

Then the reaction mass was washed with acids (hydrochloric and nitric) to remove salts, the residue was washed with water to pH 7 and was treated with such organic solvents as benzene and chlorobenzene removal, unreacted hydrocarbons and low molecular weight reaction products. To reduce probably saveimage the piezoelectric TSTS-19, sizes 0,HH mm3when applying for his electric voltage 80 kHz and an amplitude of 20V.

Using UV spectroscopy, electron microscopy and x-ray photoelectron spectroscopy and auger spectroscopy revealed that when dehydropolycondensation and promoting carbonization of phenanthrene in the presence of salts of chromium are formed of micro - and nanostructures of cylindrical shape (tubulin) containing carbon and chromium.

The use of tubulanus in combination with ammonium polyphosphate increases the effectiveness of intumescent coatings due to the fact that they stimulate the processes of coke formation and enhance the strength characteristics of foam coke, due to different degrees of structure formation compositions. At elevated temperatures the heat capacity changes without significant variations, due to the more relaxed during the process of gassing and the prevailing process of carbonization.

The invention is illustrated by the following examples 1-8. Connecting all of the examples was selected epoxygenase resin ED-20, curable polyethylenepolyamine (Pepa) at a mass ratio of 10:1,5. The thickness of the outer agneepath coatings in all cases was Odin who terasawa 60 wt.% ORGANOTIN VAC-4 GOST 18654-80, processed by heat pulses using equiregular power density 39-40 W/cm2after 30 seconds, the number of cycles 6, after which the carbonized surface inflicted OGSP composition, wt. %: resin ED-20 - 69,73; PEPA - 12,07; ammonium polyphosphate - 14,9; urea-formaldehyde resin KF-W - 3,3; and utverjdali the coating obtained under normal conditions for 24 hours.

Example 2.

On carbonized surface organoplastic (composition according to example 1) obtained in example 1, was applied OGSP composition, wt.%: epoxygenase resin ED-20 - 81,97; PEPA - 12,292; ammonium polyphosphate - 4,098; carbamide-formaldehyde resin KF-W - 0,82; product dehydropolycondensation phenanthrene with chromium - 0,82; and utverjdali the coating obtained under normal conditions for 24 hours.

Example 3.

On carbonized surface organoplastic (composition according to example 1) obtained in example 1, was applied OGSP composition, wt.%: epoxygenase resin ED-20 - 62,5; PEPA - 9,37; ammonium polyphosphate - 21,88; carbamide-formaldehyde resin KF-W - 2,5; product dehydropolycondensation phenanthrene with chromium - 3,75; and utverjdali the coating obtained under normal conditions for 24 hours.

Example 4.

The Carboni is.%: epoxygenase resin ED-20 - 59,89; PEPA - 8,98; ammonium polyphosphate - 23,95; carbamide-formaldehyde resin KF-W - 2,99; product dehydropolycondensation phenanthrene with chromium - 4,19; and utverjdali the coating obtained under normal conditions for 24 hours.

Example 5 (without the introduction of mobilenow).

The surface of the laminate containing, wt.%: fiberglass T15 P-76-70; stimulator of carbonization is a mixture of red phosphorus and metavanadate barium (in the ratio 4:1), cyclically processed by averageforum power density 46-48 W/cm2within 30 s; number of cycles 6, after which the carbonized surface inflicted OGSP composition, wt.%: resin ED-20 - 69,73; PEPA - 12,07; ammonium polyphosphate - 14,9; karbamidoformaldegidnye resin KF-W - 3,3; and utverjdali the coating obtained under normal conditions for 24 hours.

Example 6.

On the carbonized surface of the glass (composition according to example 5) obtained in example 5 was applied OGSP composition, wt.%: epoxygenase resin ED-20 - 81,97; PEPA - 12,292; ammonium polyphosphate - 4,098; carbamide-formaldehyde resin KF-W - 0,82; product dehydropolycondensation phenanthrene with chromium - 0,82; and utverjdali the coating obtained under normal conditions for 24 hours.

Example 7.

Example 8.

On the carbonized surface of the glass (composition according to example 5) obtained in example 5 was applied OGSP composition, wt.%: epoxygenase resin ED-20 - 59,89; PEPA - 8,98; ammonium polyphosphate - 23,95; carbamide-formaldehyde resin KF-W - 2,99; product dehydropolycondensation phenanthrene with chromium - 4,19; and utverjdali the coating obtained under normal conditions for 24 hours. Properties of the obtained materials is given in the table.

From the examples, a multilayer agreeporosity polymeric material (for example, 3,4,7,8) has a high resistance to fire and heat sources, which, accordingly, provides a higher specific heat capacity to 1.27-1,29 kJ/kgrad, the true density of the coke residue to 2.22-2.24 g/cm3, retention of Flexural strength and increased adhesion to delamination for organoplastic. Similar changes are observed in the modification of glass: the increase of the specific heat of the curve and increase adhesion to the delamination of fiberglass. In addition, multilayer agreeporosity polymeric material (for example, 3, 4, 7, 8) with increasing temperature degradation has a higher heat capacity. Example 1, 2: specific heat at 25o1.25-1.26 in kJ/kgrad 300oWith 1,60-of 1.66 kJ/kgrad. Example 3, 4: specific heat at 25oWith 1,29-of 1.27 kJ/kgrad 300oWith 2,66-2,47 kJ/kgrad. Example 5, 6: specific heat at 25oWith 1,26 - of 1.27 kJ/kgrad 300oWith 1,63 is 1.70 kJ/kgrad. An example of 7.8: the heat capacity at 25oC 1,31-1,29 kJ/kgrad 300oC 2,75-2,58 kJ/kgrad.

The use of the claimed invention will improve:

- fire resistant properties of coatings by increasing the specific heat, the true density of the coke residue;

- strength foam coke, formed under the influence of fire and heat sources;

to preserve the physico-mechanical properties of products from organic and fiberglass plastics and to increase adhesion when delamination;

- getting foam coke when exposed to heat flow on the coating-thickness 1 mm

Source of information:

1. RF patent 2010620, CL 05 D 3/00, bull. 7, 1994.

Multilayer agreeporosity polymeric material consisting of organoplastic or fiberglass, modificirovana epoxygenase resin ED-20, ammonium polyphosphate, urea resin KF-W and amine hardener-polyethylenepolyamine, characterized in that the composition additionally introduced product dehydropolycondensation phenanthrene containing chromium, in the following ratio, wt. %:

Epoxygenase resin ED-20 - 59,89 - 81,97

Ammonium polyphosphate - 4,098 - 23,95

Urea-formaldehyde resin KF-W - 0,82 - 2,99

Product dehydropolycondensation phenanthrene containing chromium - 0,82 - 4,19

The polyethylenepolyamine - 8,98 - 12,3

 

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