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.
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.
FIELD: fire-resistant materials.
SUBSTANCE: invention relates to fabricating fire-resistant material suitable to make filter-type individual respiratory defense systems. Material represents textile sheet with, applied thereon, emulsion polyvinylchloride-based discrete coating with fire resistance-imparting materials. Coating contains 15-25 wt parts talc or chalk and 40-60 wt parts trichloroethyl phosphate per 100 wt parts polyvinylchloride. As textile sheet, textile made from blend of polyester fibers with cotton or linen fibers, or with blend of cotton or linen fibers with wool fibers used in following proportions, wt %: polyester fibers 40-60 (warp) and 20-40 (weft), cotton and linen fibers 40-60 (warp) and 60-80 (weft), wool fibers 15-20 (warp) and 10-15 (weft).
EFFECT: assured protection of material against open flame over prolonged period of time with high air permeability preserved.
1 tbl, 10 ex
FIELD: methods for production of fire-retardants for fireproofing treatment of wood materials, applicable in production of fireproof laminated products.
SUBSTANCE: the method is accomplished by interaction of carbamide-formaldehyde concentrate of the following composition, percent by mass: carbamide-21-25; formaldehyde - 54-60; water - the rest with ammonia liquor taken in equimolar relation in formaldehyde and ammonia, at heating in a weak-alkaline medium in the presence of amino alcohol added together with ammonia liquor (0.01-0.2 percent by mass) taking into consideration the carbamide-formaldehyde concentrate with a subsequent introduction of the first portion of carbamide (0.1-10 percent by mass) for 100 percent by mass of carbamide-formaldehyde concentrate, cooling, neutralization of the reaction mixture by ortho-phosphoric acid up to pH=6.0-8.0 and subsequent introduction of the second portion of carbamide (0.1-20 percent by mass), nonionogenic surface-active agent (0.01-0.1 percent by mass), potassium bichromate (0.1-1.5 percent by mass) for 100 percent by mass of carbamide-formaldehyde concentrate.
EFFECT: optimized conditions of synthesis of fire-retardants with preservation of their fireproofing efficiency at a high level.
2 ex, 1 tbl
FIELD: fire retardant compositions and pastes, in particular for protection of electric cables, cable bunches, and cable lines.
SUBSTANCE: claimed composition contains (mass %): intercalated graphite 35.0-65.0; kaolin 0.5-3.0; aerosil 1.0-4.0; chloroparaffin 3.0-12.0; ammonium polyphosphate 1.0-4.0; and balance: chloroprene rubber. Claimed paste contains 30-50 % of abovementioned composition, and balance: solvent. Method for material production includes paste providing and application thereof on woven base preferably by spreading.
EFFECT: fire retardant compositions and pastes of high protective properties; material of increased strength, plasticity, weather resistance, foamability, and fire resistance.
14 cl, 3 ex, 1 tbl
FIELD: fire-proof foaming coats; protection of cable products against high-temperature effect.
SUBSTANCE: proposed compound contains dispersions of acryl polymers in water, thermo-expanding graphite, magnesium oxide, antimony (III) oxide, borates, phosphates, preserving and biocidal additives. Proposed compound has the following composition, parts by mass: thermo-expanding graphite, 10-30; magnesium oxide, 10-20; antimony (III) oxide, 5-10; borates, 5-10; phosphates, 10-35; dispersions of acryl polymers in water, 40-80; preserving and biocidal additives, 1-3.
EFFECT: enhanced fire resistance, elasticity, water resistance and adhesion of coat to different cable envelopes.
FIELD: aerospace industry, mechanical engineering, ship building and construction industry.
SUBSTANCE: fire-fighting material has outer fibrous layer and layer, which swells upon emergency heating. According to one embodiment, fibrous layer is made in the form of knitted fabric of stretchable material manufactured from inorganic threads with melting temperature exceeding 1,150°C. According to another embodiment, fibrous layer is made from stretchable textile or knitted material manufactured from complex thread composed of inorganic filament and filament destructed under thermal action of temperature ranging between temperature value exceeding maximal admissible temperature, at which article to be protected is designed to operate, to temperature value of 1,050°C. These threads may be twisted, or readily destructed thread may be arranged along axis of complex thread and stretchable thread may be wound thereon. In both cases, swelling layer is applied to textile material fabricated from glass or basalt threads non-shrinkable at temperature of 450-1,050ºC and applied to article to be protected. Fire-fighting swelling material may be further provided with heat-insulating mat placed onto article to be protected, made from thermally stable glass or basalt filaments and provided with sheathing. Material has insignificant smoke release and may be applied onto flat and flexible articles of small diameter.
EFFECT: increased fire-fighting capacity and reduced fire penetration allowing articles to be effectively protected from emergency fire, and wide range of fields of application.
13 cl, 4 dwg, 2 tbl, 4 ex
FIELD: production of fire resistant polyacrylonitrile textile fibers.
SUBSTANCE: claimed method includes continuous thermal treatment of continuous fiber in air media, exothermal heat discharge and pyrolysis product extraction. Continuous tows of 30-40 ktex in thickness with tows of 0.1-0.4 tex in length are heated in four steps: at 150-190°C; at 200-215°C, at 220-240°C, and 250-280°C while fiber draft is 5-30 %. Then fiber is formed to produce crimpiness of 3-7 crimps/cm. Continuous fiber may be cut on sections of 20-125 mm in length.
EFFECT: fire resistant fiber with high strength and elastic characteristics.
3 cl, 6 ex
FIELD: polymer materials.
SUBSTANCE: invention relates to incombustible, weakly foaming polybutylene terephthalate-based polymer composition, which can be used injection casting and extruding construction- and decorative construction-destination parts for motor cars, aircrafts, and other vehicles as well as in electrical engineering. Composition contains 79.5-91% polybutylene terephthalate, 4-10% decabromodiphenyl oxide or its mixture with antimony trioxide, 1-3% polytetrafluoroethylene, and additionally 4-15% modifier, in particular polyblock-structure block copolymer obtained by interaction of butanediol with oligotetramethylene oxide.
EFFECT: increased fire-resistant characteristics.
2 tbl, 5 ex
FIELD: high-molecular compounds, in particular polymeric materials with reduced inflammability.
SUBSTANCE: claimed composition contains thermoplastic polymer and phosphorus-containing flame retardant system, more particularly, mixture of heat resistant ammonium salt of aminotrismethylenephosphonic acid, pentaerythritol and zeolite in mass ratio of (60-75):(39-24):(1-1.5), respectively, in mass ratio of thermoplastic polymer/flame retardant system of (70-90)-(30-20). As thermoplastic polymer composition may contain polystyrene or polypropylene or polyethylene terephthalate, wherein optimal mass ratio of polystyrene or polypropylene/flame retardant system is (70-80):(30-20), and mass ratio of polyethylene terephthalate/flame retardant system is (90-85):(10-15).
EFFECT: thermoplastic polymers with improved flame retardant properties; reduces toxic gas releasing.
4 cl, 4 tbl, 33 ex
FIELD: rigid pipes.
SUBSTANCE: cylinder wall comprises at least one layer made of fibers oriented at least in one direction. The total thickness of the wall dtot ranges from 0.010 mm to 1 mm. The ratio dtot/D ≥ 0.0025.
EFFECT: improved method of manufacturing.
20 cl, 4 dwg