Fire-resistant material

FIELD: fire-resistant materials.

SUBSTANCE: invention relates to fabricating fire-resistant material suitable to make filter-type individual respiratory defense systems. Material contains base in the form of cloth with, applied on one of its sides, discrete fire-retardant emulsion polyvinylchloride-based coating. Material additionally contains similar coating applied on its other side and, situated on its opposite sides, facing cotton/ester textile layer and reverse cotton textile layer. Base cloth consists of carbon-containing material.

EFFECT: enhanced fire-resistant and heat-resistant properties with high air permeability and thereby defense against poisons preserved.

1 dwg, 1 tbl

 

The invention relates to light industry, namely to obtain a flame-retardant textile material with high hygienic and thermal properties suitable for the manufacture of filter PPE.

The level of technology

Known fire-resistant insulating materials with PVC coatings containing flame retardants (RF patent N 2091424, 1997, patent RF N 2120956, 1998). However, these materials are totally unsuitable for the manufacture of filter PPE due to the complete lack of hygienic properties, as they are airtight.

Known flame-retardant textile material, made in the form of a textile fabric coated with utverzhdennym discrete coating based on polyvinyl chloride plastisol containing flame retardants (RF patent N 2101407, 1998). This material has a high hygienic properties. However, from exposure to toxic substances does not protect.

The closest technical solution is fire resistant textile material of a textile fabric coated with antepartum composition based on an emulsion of polyvinyl chloride in the form of a discrete layer, the elements of which are made in the form of different geometric located in various combinations with each other the elements, moreover, the passage on a straight line between adjacent elements covered by them or other elements (patent RF N 2137607 C1, 20.09.1999,).

This material has a high permeability and is suitable for the manufacture of filter PPE. However, it does not protect from exposure to toxic substances. In addition, thermal protective properties of the material and its resistance is insufficient.

Thus, for the manufacture of filter PPE is not known fire-resistant material, which had both a higher thermal insulation, fire-resistant properties while maintaining breathability and protect from exposure to toxic substances.

The invention

Inventive task was in search of fire-resistant material, which is a basis in the form of fabric coated on one side discrete antepartum coating based on an emulsion of polyvinyl chloride, which had both a higher fire-resistant and thermal properties while maintaining breathability and protect from exposure to toxic substances.

The problem is solved with a fire retardant material, which is a basis in the form of fabric coated on one side discrete antepartum based coating emulsion poly is Inishmore, which additionally contains the same coating on the other side of the sheet, and located on opposite sides of the front layer of khlopkopryadilnaya fabric and the inside layer of cotton fabric, and as the blade bases it contains carbonaceous material.

Distinctive features of the invention are used as canvases basis of carbon-containing material, and the presence in the material of the two layers of the front and back.

The invention provides the following advantages in the manufacture of the claimed material PPE:

- to improve the fire resistance and thermal insulation properties of the material;

to maintain a high permeability material;

- to provide protection from exposure to toxic substances.

The drawing shows a fire-resistant material containing the front layer 1, absorptive layer 2 and the reverse layer 3.

As the front layer used khlopkopryadilnaya fabric. Absorptive layer contains the base 4 of the carbonaceous material and on both sides of discrete flame retardant coating 5. As the inside layer used cotton fabric.

Information verifying the playback inventions

As the basis of 4 absorptive layer 2, following icewm, you can use various carbon-containing materials, for example paper filter sorbing brand PLS-based coal SKT-6A (TU 13-00281097-31-95), carbon paper other brands, various carbon fabric, in particular the canvas haloprogin casinovirtuale PCSF-1.

As the front layer 1 can be used without any restrictions globcorine fabric that meets the consumer's main physico-mechanical characteristics.

As the reverse layer 3, you can use cotton cloth.

Elements of discrete coating 5 on carbon-based 4 may be of various shapes, such as hemispherical or in the form of different geometric located in different combination of elements.

For the manufacture of PVC coatings can be used emulsion polyvinylchloride any brand (GOST 14039, am.1, 2, 3, 4).

As plasticizers for PVC plastisol can be used such well-known plasticizers as 2-ethylhexylphthalate (dioctylphthalate) (GOST 8728-88), alkalemia esters of orthophthalic acid - DAP-789 and DAF-68 (GOST with 8,728-E), and phosphorus - and chlorine-containing plasticizers, such as trichlorethylene - TCHEPH (TU 2493-319-05763441-2000, am.1), annato (TU 2493-003-3158584-95), (di-2-ethylhexyl)-phenylphosphate - DUFF (TU 6-05-1611-78), chloroparaffin CP-470 (TU 249-339-05763458-2003).

As stabilizers of polyvinyl chloride used stearinovokisly calcium (CLAUSES 24.1-14308351-003-2003), resin epoxy ED-16, ED-20, ED-22 (GOST 10587-76), stabilizer SCS-17 (TU 6-09-4346-78), which is a barium-cadmium-zinc salt of synthetic fatty acids.

As flame retardants can be used antimony trioxide (TU 48-141-88), borax (GOST 8429-77), Tris-(2,3-dibromopropyl)-phosphate (TU 6-16-3086-88), chloroparaffin HP-1100 (TU 2493-211-05763458-97), aluminium hydroxide (TU 6-09-426-70).

The material is produced as follows.

First prepare the PVC plastisol by mixing an emulsion of polyvinyl chloride with plasticizers, stabilizers and flame retardants and subsequent maturation of the obtained paste.

Then on the carbonaceous material used as the base, put a discrete coating of PVC plastisol.

Form elements of a discrete coverage may be different. When this coating weight is 90-110 g/m2and the degree of overlap surface of the base - 27-32%. On the uncured discrete coating impose the front layer and the resulting intermediate product is subjected to heat treatment at a temperature of 140-160°for, respectively, 7-2 minutes On the obtained two-layer cake mix from carbon-containing layer is applied another discrete coating on the basis of the same PVC-plastisol, after che is about this uncured discrete coating impose fabric, used as the inside layer. The obtained three-layer cake mix again subjected to heat treatment at a temperature of 140-160°for, respectively, 7-2 minutes

Thus, get the multilayer fire-resistant material that protects from exposure to toxic substances.

Material properties are given in the table.

As can be seen from the table, while maintaining the hygienic properties of this material is higher compared to the prototype thermal and fire retardant properties and can protect personnel from the effects of toxic substances. Thus, thermal protective properties of the material ˜ 10 times higher than that of the prototype. Fire performance of a material when exposed to an open flame is almost 2 times higher than that of the prototype.

Fireproof material, which is a basis in the form of fabric coated on one side discrete antepartum coating based on an emulsion of polyvinyl chloride, characterized in that it additionally contains the same coating on the other side of the sheet, and located on opposite sides of the front layer of khlopkopryadilnaya fabric and the inside layer of cotton fabric, and as the blade bases it contains carbonaceous material.



 

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