The method of flame retardant finishing cellulose-containing textile materials

 

(57) Abstract:

Use: textile finishing production to give cellulose, especially linkdomainbuyphentermineonline1com textile materials resistance to burning sparks and splashes of molten metal, UV-irradiation and fire resistance. The materials used for clothing tailoring workers welders. The inventive cellulose material impregnated at room temperature with an aqueous solution of the product from a mixture of ammonium polyphosphates containing cations of copper, zinc and aluminium, with the mass ratio of the P2O5:N:Cu:Al, respectively, 170:50:1:1:1, 25 - 95 g/l and dried. Process solution bisacrylamide ester dibromoneopentylglycol 50 - 100 g/l, dried and thermoablative at 100 to 160°C. quality Indicator linklocation fabric: resistance to burning GOST 12.4.052-78 310-458, residual combustion and decay when in contact with flame (according to GOST 15898-75) for 10 and 30 s, % s, strength in % of original after UV irradiation for 120 and 240 hours, respectively, of an 80.2 - 98,5 and 40.3 - 61,8 h: hardness according to GOST 8977-59 of 9.2 and 10.3 GS: the decrease in strength after impregnation of 7.1 to 10.1%. Resistance to the burning of linklocal fabric with 165, the debate relates to textile finishing production namely technology special finishing of textile materials, in particular fabrics, designed for sewing clothing workers - welders. Such materials should not only have fire resistance and resistance to burning when hit sparks and molten metal splashes, but also resistant to UV radiation.

There is a method of flame retardant finishing of textile materials of flax fibers by impregnating them with an aqueous solution of bichromate of potash 30-40 g/l at 75-80aboutWith, then at the same temperature with an aqueous solution of sodium diethyldithiocarbamate 100-150 g/l and finally with an aqueous solution containing as a flame retardant 80-85 g/l phosphoric acid and 180-200 g/l of urea, followed by drying (1).

However, this method is sequential. In addition, at sufficiently high resistance parameters are decorated in this way the fabric has poor resistance to UV radiation.

There is also known a method of flame retardant finishing of cellulose-containing fibrous materials impregnated them with an aqueous solution of ammonium polyphosphates with a concentration of 1-30 wt.% followed by drying (2).

However, the textile material treated in this way loses its strength /P> Closest to the invention to the technical essence and the achieved result is a method of flame retardant finishing cellulose-containing textile materials, for example linklocal two tissues impregnated them with an aqueous solution containing as a flame retardant phosphoric acid 80-120 g/l and urea 180-200 g/l, at 35-40aboutWith subsequent drying (3).

However, this method does not give the material high enough resistance to burning and UV irradiation, as used in this method, the phosphoric acid causes corrosion of the equipment.

The aim of the invention is to improve the stability of cellulosic textile materials to the burning.

This objective is solved by the method of flame retardant finishing cellulose-containing textile materials impregnated them in an aqueous solution of a phosphorus - and nitrogen-containing flame retardant, followed by drying, whereby according to the invention as a phosphorus - and nitrogen-containing flame retardant use the product based on a mixture of ammonium polyphosphates containing cations of copper, zinc and aluminium, with the mass ratio R2ABOUT5:N:Cu:Zn:Al, respectively, 170:50:1:1:1, the impregnation is carried out at the concentration in the solution 25-95 g/l of pricola with a concentration of 50-100 g/l, dried and thermoablative at 100-160aboutC. for an additional increase of resistance to burning and UV irradiation furnish is subjected to the textile material from a mixture of linen, cotton and polyparaphenyleneterephtalamide fiber.

In the method according to the invention using bisalloy ether dibromoneopentylglycol (TU 6-47-113-88), which forms on the fiber during the heat treatment of the spatial grid, contributing to the fixation of ammonium polyphosphates and preserving at the same time, the porous structure of the fabric is necessary to ensure the hygienic properties of the service.

Used in the method according to the invention the product on the basis of ammonium polyphosphates containing cations of copper, zinc and aluminium (TU 6-47-81-90), produced by the process of high-temperature ammonization gaseous ammonia products of orthophosphoric acid hydrate, aluminum oxide, zinc hydroxide and copper sulfate. (see One-time process regulation of production of ammonium polyphosphates containing cations of copper, zinc and aluminum. Saki: CNGO Iodobrom, 1990).

According to the regulation, first in a reactor with a heated agitator serves 550 kg (350 DM3) orthophosphoric acid, and then is stirred at 80-90aboutC for 20 min to dissolve. For ammonization solution is heated to 130aboutAnd in the reactor is supplied from the evaporator gaseous ammonia. The temperature was raised to 240aboutAnd ammonization hold at this temperature for 30 minutes, the Melt is poured into a second reactor containing 250 DM3kabooming aqueous solution and 196 DM3water and dissolved under stirring at a temperature of 70-90aboutC for 30 minutes Then a solution served in another reactor for daemonization. To do this, in solution through the immersed tube serves within 1 h of gaseous ammonia in the total number of 21 kg and carry out the neutralization reaction at 80-90aboutWith up to a pH of 6.7-7.0 for 1 hour. The resulting product is a liquid blue color and has the following properties: pH of a solution of 6,7-7,0

The density of the solution at 20aboutWith 1370+20 kg/m3< / BR>
Mass fraction of nitrogen of at least 10%

Mass fraction of copper at least 0.21%

Mass fraction of zinc is at least 0.21%

The General formula of polyphosphates (NH4)nH(n-m)+2PnO3n+1where m=1-3; n=1-4;

The temperature of the crystal of the topical product 18aboutWith the Heat capacity of 1.95 kJ/K thermal Conductivity 5,04 W/m K Viscosity at 20aboutWith no more than 4.2 MP.

The table below shows the performance properties of the finished fabric, including resistance to burning GOST 12.4.052-78, the resistance according to GOST 15898-75 and stiffness according to GOST 8977-59.

P R I m e R 1 (the prototype).

Linklocation fabric (basis: 80% cotton+20% terlena; weft: linen 80%+20% terlena) is impregnated with an aqueous solution containing 100 g/l and phosphoric acid and 180 g/l of urea, 35aboutC for 30 min, followed by drying at 110aboutWith to a moisture content of 6%.

P R I m m e R 2 (prototype).

Linklocal fabric art. 11287, treated as in example 1.

P R I m e R 3. The fabric of example 1 is impregnated with the under 18aboutWith a water solution containing 25 g/l product based on polyphosphates ammonia containing cations of copper, zinc and aluminum mass ratio R2ABOUT5:N:Cu:Zn:Al, respectively, 170:50:1:1:1 followed by drying at 110aboutWith to a moisture content of 6% . Then the fabric is impregnated with an aqueous solution containing 50 g/l bisacrylamide ester dibromoneopentylglycol, dried at 80aboutAnd thermoablative at 140aboutC for 10 min.

P R I m e R 4. The fabric of example 1 is impregnated with pride, zinc and aluminum, from example 3, followed by drying at 115aboutWith to a moisture content of 7%. Then the fabric is impregnated with an aqueous solution containing 75 g/l bisacrylamide ester dibromoneopentylglycol, dried at 70aboutAnd thermoablative at 160aboutC for 5 min.

P R I m e R 5. The fabric of example 1 is impregnated with at the 23aboutWith a water solution containing 95 g/l of the product on the basis of ammonium polyphosphate from example 3, followed by drying at 120aboutWith up to 8% moisture. Then the fabric is impregnated with an aqueous solution containing 100 g/l bisacrylamide ester dibromoneopentylglycol, dried at 70aboutAnd thermoablative at 110aboutC for 15 minutes

P R I m e R 6 (comparative). The fabric of example 1 are impregnated at room temperature with an aqueous solution containing 100 g/l of the product on the basis of ammonium polyphosphate from example 3, followed by drying at 115aboutWith up to 8% moisture. Then the fabric is impregnated with an aqueous solution containing 120 g/l bisacrylamide ester dibromoneopentylglycol, dried at 90aboutAnd thermoablative at 170aboutC for 3 min

P R I m e R 7 (comparative).

The fabric of example 1 are impregnated at room temperature water rest is 6%. Then the fabric is impregnated with an aqueous solution containing 40 g/l bisacrylamide ester dibromoneopentylglycol, dried at 60aboutWith, thermoablative under 100aboutC for 20 minutes

P R I m e R 8. Fabric code 11287 (base - B cotton, weft - 200 Tex., len) process in example 3.

P R I m e R 9 (comparative).

The treatment is carried out as in example 4, but without impregnation with an aqueous solution of polyphosphate.

P R I m e R 10 (comparative).

Linkoptions fabric is impregnated with an aqueous solution containing 50 g/l bisacrylamide ester dibromoneopentylglycol, dried at 80aboutAnd thermoablative at 140aboutC for 10 min.

P R I m e R 11 (comparative).

Processing is carried out as in example 5, but without impregnation with an aqueous solution bisacrylamide ether. Properties of the fabrics treated by the method according to the invention (examples 3-5,8) and the method prototype (examples 1,2) are given in the table.

Analysis of the data presented in the table shows that the treated under the proposed method of tissue have fire-resistant properties at the level of the prototype and improved resistance to burning and UV irradiation, and linklocation fabric blacknote after impregnation.

1. The METHOD of flame retardant FINISHING CELLULOSE-containing TEXTILE MATERIALS impregnated them in an aqueous solution of a phosphorus - and nitrogen-containing flame retardant, followed by drying, characterized in that the phosphorus - and nitrogen-containing flame retardant use the product based on a mixture of ammonium polyphosphates containing cations of copper, zinc and aluminium, with the mass ratio of the P2O5: N : Cu : Zn : Al, respectively 170:50:1:1:1, the impregnation is carried out at the concentration in the solution 25-95 g/l, and after drying, the material is treated with an aqueous solution bisacrylamide ester dibromoneopentylglycol with a concentration of 50-100 g/l, dried and thermoablative at 100-160oC.

2. The method according to p. 1, characterized in that the finish is subjected to the textile material from a mixture of linen, cotton and polyparaphenyleneterephtalamide fiber.

 

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FIELD: inorganic chemistry, aluminum silicates, composition for fireproofing of building and construction materials.

SUBSTANCE: invention relates to water resistant aluminum silicate with softening temperature more than 900°C for fireproofing of wood, polymer, and other building and construction materials. Water resistant aluminum silicate has general formula of Na2O*kSiO2*nAl2O3*pP2O5*rMA*mH2O, 1, wherein k = 3.25-11.5; m = 3.5-12; n = 0.052.7; p = 0-0.1; r = 0.3.5; M is K, Ca2+, Mg2+, Zn2+, 1/2Ti4+; A is Cl-, O2-, SO42-, CO32-. Aluminum silicate represents hardening product of water dispersion containing 1) sodium silicate of general formula Na2O*xSiO2*yH2O, 2, wherein x = 2.9-3.1; y = 17-22; 2) cross-linking agent based on alkali soluble silicium and/or aluminum compound; 3) at least one a) hardening agent (alkali soluble zinc, titanium, magnesium and/or calcium oxide (hydroxide)); b) opener; c) filler (e.g. kaolin, chipped glass fiber, milled sand, etc.); d) modifier in the next component ratio (mass %): sodium silicate 31-83.8, preferably 58-75; alkali soluble silicium compounds 0.05-39.2, preferably 10-15; alkali soluble aluminum compounds 0.4-26, preferably 5-8; hardening agent 0.74-19.9, preferably 3-8; opener 0.013-9.7; filler 1.9-33, preferably 5-15; modifier 0.01-6.3, preferably 0.35-0.75.

EFFECT: composition for production of non-cracked coating with low thermal conductivity and increased fire resistance.

28 cl, 116 ex, 52 tbl

FIELD: synthesis of phosphorus-containing derivatives of organic compounds.

SUBSTANCE: invention relates to method of preparing polyphosphates of organic compounds, to mixture of polyphosphates of organic nitrogenous bases, and to use of polyphosphates and mixture of polyphosphates as fire retardants for plastics, preferably thermoplastics and, more particularly, polyamides and polyesters. Polyphosphates of organic compounds are prepared via exchangeable decomposition of mixture of phosphorus pentoxide and at least one organic nitrogenous base with a compound releasing water when decomposed under reaction conditions, the latter compound being used in such molar proportion that water would release in amount corresponding to essentially two moles of water per one mole of phosphorus pentoxide. Water-releasing compound can be compound forming, along with water, only volatile decomposition products and this compound can be selected from group including anhydrous oxalic acid, oxalic acid dehydrate, and formic acid. Exchangeable decomposition reaction is conducted at 100 to 250°C. Mixture of polyphosphates of organic nitrogenous bases is characterized by following properties: when heated to 320°C it looses less than 2% of its mass; pH value of its 10% water suspension exceeds 5 at 25°C, preferably from 5.2 to 7.7 and, more preferably, from 5.8 to 7; its solubility in water is less than 0.1 g and preferably less than 0.01 g per 100 mL water.

EFFECT: expanded synthetic possibilities.

6 cl, 5 ex

FIELD: chemistry.

SUBSTANCE: invention refers to constructional composites based on ultra-high molecular polyethylene (UHMPE), used in industrial production of fire-resistant multipurpose products with compaction method. Fire-resistant material contains powdered ultra-high molecular polyethylene of powder particle size 20-50 microns and molecular weight within 1.0 million to 25.0 million, and ammonium polyphosphate of powder particle size not exceeding 10 microns and degree of polymerisation not less than 1200. Material is made by stirring the mixed powdered UHMPE and ammonium polyphosphate in ratio as follows, wt %: ultra-high molecular polyethylene - 80, ammonium polyphosphate - 20.

EFFECT: produced fire-resistant material is characterised with fire resistance "ПВ"-0 and ensures reduced degree of flammability of constructional composites.

1 tbl, 1 ex

FIELD: chemistry.

SUBSTANCE: composition for fire-proof treatment of synthetic fibres contains the following in pts. wt: methylphosphite borate 20.0-35.0, water 65.0-100.0, ammonia 15.0-25.0, polyacrylamide 15.0-25.0 and potassium persulphate 0.5-1.5.

EFFECT: high fire-resistance, strength, resistance to thermal-oxidative decomposition and endowing synthetic fibre with high strength of binding with isoprene rubber.

2 tbl, 6 ex

FIELD: chemistry.

SUBSTANCE: composition consists of 1 part citrate ion source per 12.7-20 parts ammonium phosphate and 0.8-2.2 parts benzoate ion source. Alternatively, the composition consists of 1 part citric acid per 12.7-20 parts ammonium phosphate and 0.8-2 parts sodium benzoate.

EFFECT: composition can be granular or liquid with further addition of water and ingredients which are not harmful to humans and the environment.

17 cl

FIELD: chemistry.

SUBSTANCE: composition for fire-proof treatment of polyether fibres contains the following in pts.wt: phosphorus-boron-containing methacrylate 45.0, water 55.0, ammonia 8.0, sodium persulphate 0.225-0.45 and ground 23KNTS polycaproamide fibre 0.045-0.225.

EFFECT: high fire-resistance, strength, adhesion to chloroprene rubber.

2 tbl, 5 ex

FIELD: chemistry.

SUBSTANCE: invention relates to fire- and bioprotective preparations for wood and wood-based materials. The preparation for protecting wood and wood-based material from fire contains a solvent - water, boric acid, diammonium phosphate and amino alcohol of general formula: (CnH2n+1)k NH3-(k+m) (CnH2nOH)m, where: n, m=1-3, k=0-2, k+m≤3.

EFFECT: obtaining a preparation with high fire-protective efficiency and protective capacity with respect to the most common mould and wood-staining fungi.

5 tbl

FIELD: chemistry.

SUBSTANCE: present invention relates to a low-flammability moulding composition based on polypropylene as well as fibre and a film made from said composition.

EFFECT: invention reduces flammability of polypropylene without deterioration of physical and mechanical properties of the obtained low-flammability polypropylene granulate as well as articles based thereon.

3 cl, 1 tbl

FIELD: chemistry.

SUBSTANCE: fire retardant contains at least ammonium polyphosphate(s) and/or derivatives thereof, an oligomer or polymer derivative of 1,3,5-triazine or mixtures of several such derivatives and at least one compound selected from zinc dihydroorthophosphate, zinc borate, zinc orthophosphate, zinc pyrophosphate, zinc polyphosphate, zinc hydroxystannate, zinc stannate, boron phosphate, aluminium dihydroorthophosphate, aluminium orthophosphate, aluminium metaphosphate and mixtures thereof. The fire retardant can contain pre-condensed malamine derivatives, melamine salts and adducts thereof, ethylenediamine phosphate, piperazine phosphate, perazine polyphosphate, 1,3,5-trihydroxyethylisocyanurate, 1,3,5-triglycidylisocyanurate and triallylisocyanurate. The invention also relates to a polymer material, specifically a thermoplastic elastomer containing said fire retardant in amount of 5-25 wt %, preferably 10-25 wt %. The fire retardant has low water-solubility, decomposes at higher temperatures and can be used in smaller concentrations with high fire retarding action at the same time.

EFFECT: polymer material containing the fire retardant has improved physical and chemical properties, high fire-resistance and water-resistance.

14 cl, 3 tbl, 14 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a polymer material, particularly a thermoplastic elastomer, which contains a halogen-free fire-retardant which is included in a polymer matrix. The fire-retardant contains (A) coated ammonium polyphosphate(s) in a crystalline modification II and/or derivatives thereof and (B) an oligomer or polymer derivative of 1,3,5-triazine or mixtures of several such derivatives. The fire-retardant also contains at least one compound selected from (C) phosphates, pyrophosphates, polyphosphates, organic and inorganic phosphonates and phosphinates, stannates, molybdates or borates of elements of main subgroups II, III, IV or elements selected from Fe, Zn, Ti, Mn, Zr, Mo and (D) pre-condensed malamine derivatives, melamine salts and adducts thereof, ethylenediamine phosphate, piperazine phosphate, piperazine polyphosphate, 1,3,5-trihydroxyethylisocyanurate, 1,3,5-triglycidylisocyanurate and triallylisocyanurate. The weight ratio of component A to component B ranges from 10:1 to 1:1 and content of components A and B together ranges from 60 to 99 wt %, and content of components C and D together ranges from 1 to 40 wt % of the total weight of components A, B, C and D. Content of chlorine in component B is less than 1 wt % and/or content of chlorine in the entire polymer material is less than 1500 ppmw.

EFFECT: fire-retardant can be used in lower concentrations with high fire-retardant action, has low water-solubility and decomposes at higher temperatures compared with existing fire-retardants.

13 cl, 3 tbl, 11 ex

FIELD: textile industry.

SUBSTANCE: invention relates to technology of manufacturing flame retarded textile materials, which may be used as filler when manufacturing flame retarded composites and decorative and finishing textile materials. Method of invention comprises applying burning retardant, namely Antipyrene T-2 (methylphosphonamide ammonium salt) onto polycaproamide or polyethylene terephthalate fiber, retardant being used in the form of 5-7% aqueous solution. Fiber is the additionally exposed for 25-30 sec to 350 W CO2-laser emission. Treated fiber contains 22-25% Antipyrene T-2 and is characterized by oxygen index: 35% (polycaproamide) and 42.5% (polyester fiber). Strength of fibers is slightly increased.

EFFECT: substantially increased fire resistance of textiles.

1 tbl, 32 ex

FIELD: textile industry.

SUBSTANCE: invention relates to technology of manufacturing flame retarded textile materials, which may be used as filler when manufacturing flame retarded composites and decorative and finishing textile materials. Method of invention comprises applying burning retardant, namely Antipyrene T-2 (methylphosphonamide ammonium salt) onto polycaproamide or polyethylene terephthalate fiber, retardant being used in the form of 5-7% aqueous solution. Fiber is the additionally exposed for 25-30 sec to 350 W CO2-laser emission. Treated fiber contains 22-25% Antipyrene T-2 and is characterized by oxygen index: 35% (polycaproamide) and 42.5% (polyester fiber). Strength of fibers is slightly increased.

EFFECT: substantially increased fire resistance of textiles.

1 tbl, 32 ex

FIELD: textile industry.

SUBSTANCE: invention relates to technology of manufacturing flame retarded textile materials, which may be used as filler when manufacturing flame retarded composites and decorative and finishing textile materials. Method of invention comprises applying burning retardant, namely Antipyrene T-2 (methylphosphonamide ammonium salt) onto polycaproamide or polyethylene terephthalate fiber, retardant being used in the form of 5-7% aqueous solution. Fiber is the additionally exposed for 25-30 sec to 350 W CO2-laser emission. Treated fiber contains 22-25% Antipyrene T-2 and is characterized by oxygen index: 35% (polycaproamide) and 42.5% (polyester fiber). Strength of fibers is slightly increased.

EFFECT: substantially increased fire resistance of textiles.

1 tbl, 32 ex

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