The composition for fire - wood and biosecurity (options)
(57) Abstract:Usage: in the woodworking industry and building materials industry in the protection of wood products from fire and biodegradation.Essence: according to the first variant, the composition for fire - wood and biosecurity as a flame retardant comprises a mixture of reaction products when 34-78oWith equimolar amounts of dialkylphosphate containing 1-4 alkyl C atoms, amine f-crystals RNHR'where R is H or alkyl WITH1-C7and R' is alkyl WITH1-C7, with a total content of the phosphorus flame retardant of 7.6-22.3 wt. % and nitrogen of 3.4 to 10.1 wt. %. According to the second variant, the composition contains a mixture of products of interaction with 128-150oWith equimolar amounts specified dialkylphosphate with dicarboxylic acid f-crystals HOOCRCOOH, where R is alkyl WITH1-C7or alkenyl2-C4with a total phosphorus content in the flame retardant 9,0-15,47 wt. %. According to a third variant, the composition contains a mixture of products of interaction of equimolar quantities specified dialkylphosphate with carbamido when 34-78oWith or is 50-170oWith Amida carboxylic acid f-crystals RCOHR'R"where R is H, alkyl WITH1-C4or alkenyl2-C4and R t R'is H or alkyl With
0,0 dimethyl 2 carbamoylphosphate 50
Melamine-formaldehyde resin brand GM-C on THE 6.10.1253-79 50
The composition is applied to the surface of the wood in the amount of 120 g/m2to the content of 0,0-dimethyl-2-carbamoylphosphate 50 g/m3.The floor is of Ostapov, obtained in examples 1-16 are given in tables 2-3.Check ognezashita the ability of the compounds was performed with a ceramic tube according to GOST 12.1.044-89, antiseptic properties with strain of the fungus Coniophora Cerbella according to GOST 16712-71, adhesion of paints and varnishes (enamels PF-1126 based on modified pentaftalevyh alkyd resin on THE 6-10-1540-78 and varnish SC-218-based ColleXion according to GOST 4976-83) method of lattice cuts on GOST 15140-80, survivability, structures visually to bundle structures (maximum duration of test 1.5 years).As can be seen from table 3, the use of the compositions according to the invention allows to increase the efficiency of wood protection against fire and biodeterioration and enables its subsequent painting. While the persistence of the composition compared to the prototype increases tenfold. TTT TTT TTT 1. The composition for fire - wood and biosecurity on the basis of the phosphorus - and nitrogen-containing organic flame retardant, characterized in that the phosphorus - and nitrogen-containing organic flame retardant contains a mixture of reaction products with 34 78oWith equimolar amounts of dialkylphosphate containing alkyl of 1-4 atom, with an amine of General formula RNHR', where R is hydrogen or C13, the refractive index 1,398 1,412, conditional viscosity viscosimetry VZ-246 45-52 C and pH 7.0 to 7.4,
2. Composition under item 1, characterized in that it contains a mixture of reaction products of dimethylphosphite with diethylamino with a total phosphorus content of 20.1 to 20.6 wt. and nitrogen at 9.0 to 9.3 wt. bulk density 1,09 1,11 g/cm3, the refractive index 1,398-1,412, conditional viscosity viscosimetry VZ-246 at 20°C 45-52 C and pH 7,0-7,4.3. The composition for fire - wood and biosecurity based on phosphorus-containing organic flame retardant, characterized in that the phosphorus-containing organic flame retardant contains a mixture of reaction products at a temperature of from 128 to 150oC equimolar amounts of dialkylphosphate containing alkyl of 1-4 C atoms with a dicarboxylic acid of General formula: RO, where R is alkyl WITH1-C4or alkenyl C2-C4with total phosphorus content in the flame retardant 9,0-15,47 wt. bulk density 1,22-1,25 g/cm3, the refractive index 1,443-1,560, conditional viscosity at 20oC viscosimetry B3-246 63-74 c and a pH of 6.0 to 6.7.4. The composition according to p. 3, characterized in that it contains a mixture of reaction products of dimethylphosphite with maleic acid with the General soderjaniu at 20°C on viscosimetry VZ-246 70-74 C and a pH of 6.1-6.7 or with malonic acid with the total content of phosphorus from 15,0 to 15.47 wt. bulk density 1,22-1,23 g/cm3, the refractive index 1,443-1,447, conditional viscosity at 20°C for viscosimetry VZ-246 63-65 C and pH 6,0-6,3.5. The composition for fire - wood and biosecurity on the basis of the phosphorus-and nitrogen-containing organic flame retardant, characterized in that the phosphorus - and nitrogen-containing flame retardant contains a mixture of the reaction product of equimolar quantities of dialkylphosphate containing alkyl of 1-4 atoms With urea at 34 78oWith or with 50 170oWith Amida carboxylic acid of General formula: RCONP'R", where R is hydrogen, C1WITH4-alkyl or C2C4alkenyl, R' and R" is hydrogen or C1WITH4-alkyl, with the total content of the phosphorus flame retardant 8,2 to 20.2 wt. and nitrogen to 3.6 16.4 wt. with a bulk density of 1.11 1.18 g/cm3, the refractive index 1,383 1,445 and conditional viscosity at 20°C on the viscometer VZ-246 39 50 C and pH 6.6 to 7.6.6. The composition according to p. 5, characterized in that it contains a mixture of reaction products of dimethylphosphite with dimethylformamide with a total content of the phosphorus flame retardant 16,9 17,4 Mac nitrogen of 7.6 to 7.8 wt. bulk density of 1.12 - 1,14 g/cm3, the refractive index 1,445 1,443, conditional viscosity at 20°C for viscosimetry B3-246 40 50 C and pH of 6.7 to 6.9 or methacrylamide with common soda is elmline 1,441 1,443, conditional viscosity at 20°C for viscosimetry B3-246 39 44 c, pH of 7.1 to 7.2.
FIELD: wood materials.
SUBSTANCE: invention relates to a method for protection of wood providing to confer its hydrophobic properties for enhancing its longevity and stability of sizes. Invention describes a method for chemical treatment of lignocellulose materials, in particular, a wood lump. Indicated material is impregnated with a chemical agent containing hydrocarbon chains and this agent is chosen from mixed anhydrides containing the first hydrocarbon chain R and the second hydrocarbon chain R1 wherein R or R1 represents (C2-C4)-carboxylic acid, and R1 and R represents saturated or unsaturated (C6-C24)-fatty acid with exception mixed anhydride of acetic/benzoic acid. Indicated agent is useful for carrying out grafting based on a covalent bond in a great number of hydrocarbon chains with indicated materials. Grafting is carried out by the esterification reaction of indicated lignocellulose materials using a chemical agent chosen from organic anhydrides. Impregnation is carried out in the presence of a basic, neutral or weak acid catalyst and in the absence of catalyst also by immersion and irrigation in autoclave. Treatment is carried out at temperature from room value to 150°C but preferably from 100°C to 140°C. Also, invention describes an article based on lignocellulose fibers material, in particular, wood lump prepared by above described method. Proposed method provides preparing lignocellulose material, in particular, a wood lump with uniform fibers and smooth shape showing the absorption coefficient 3.5% and the swelling coefficient 3.5%.
EFFECT: improved method of treatment.
16 cl, 3 dwg, 3 tbl, 2 ex
SUBSTANCE: invention relates to use of alkoxylated amines to treat wood in order to improve water-repellent properties of wood or reduce the amount of water absorbed by wood. Treatment is carried out with alkoxylated amines of formula where R1 denotes C8-20-alkyl; R2 denotes -[CH2CH(X)O]bH (a-1) or n is an integer from 1 to 4; each of a, b and c independently denotes an integer ranging from 1 to 20; each X is independently selected from a group comprising hydrogen, methyl, ethyl and phenyl. Alkoxylated amines of formula (I), particularly N,N',N' -tris(2-hydroxyethyl)-N-cocoalkyl-1,3-diaminopropane or N,N',N'-tris(2-hydroxyethyl)-N-tall alkyl-1,3-diaminopropane can be used in the composition for treating wood in amount of 0.1-90 wt %.
EFFECT: use of alkoxylated amines of formula (I) to treat wood improves water-repellent properties of wood and reduces the amount of water absorbed by wood.
10 cl, 2 tbl
SUBSTANCE: invention relates to antiseptic agents for treating wood and specifically to antiseptics based on water-soluble polymers. The antiseptic consists of a mixture of dry salts and acids, with the following ratio in wt %: partial zinc salt of a polyacrylic acid 1.88-2.5; sodium salicylate 37.88-38.25; salicylic acid 20.25-25.18; citric acid 34.07-39.99, soluble in 50% aqueous solution of a quaternary ammonium salt of formula [R(CH3)2(CH2C6H5)N]+Cl-, R=C10H21-C18H37, with the following ratio of components in wt %: mixture of dry compounds 25; aqueous solution of quaternary ammonium salt 75. Working solutions with concentration of 2.0 wt % and 0.5 wt % are prepared from the obtained antiseptic solution.
EFFECT: antiseptic is more effective in treating wood compared to its counterparts.
2 tbl, 5 ex
SUBSTANCE: invention relates to wax dispersions in form of nanoparticles, used for hydrophobisation of lignocellulose- and/or cellulose-based materials. The wax dispersion contains water as a continuous phase, an emulsifying agent and wax which forms the dispersed phase. More than 85 wt % of the wax is made up of one or more long-chain hydrocarbons containing more than 20 carbon atoms on average, and the wax has hardening temperature ranging from higher than 40 to 150°C. The dispersed wax in form of solid particles has mean particle diameter from 10 to less than 500 nm. The wax dispersion is obtained by heating a mixture containing water, an emulsifying agent and wax to temperature higher than the melting point of the wax, and the molten wax is emulsified using a dispersant and then cooling to temperature lower than the hardening temperature of the dispersed wax phase. Hydrophobisation of materials is carried out by bringing said materials into contact with said wax dispersion and then pressing the material.
EFFECT: obtained wax dispersions contain a large weight ratio of a dispersed wax phase, are stable during storage and are resistant to shearing stress, provide a high hydrophobic effect compared to standard wax dispersions with the same content of wax.
23 cl, 3 tbl, 6 ex
SUBSTANCE: composition includes, at least, two components a and b. Component a) contains, at least, one mono- and/or multifunctional thiol. Component b) contains, at least, one mono- and/or multifunctional -ene. The molar ratio between the thiol and -ene groups constitutes from 1:0.9 to 1:10. Also described are: element of soaked wood; method of soaking the wooden element, including soaking wood with the said composition with further hardening.
EFFECT: increased water resistance and improved mechanical properties of wood.
13 cl, 10 tbl, 10 ex
FIELD: insulation materials.
SUBSTANCE: method of preparing insulation compound, which can be used for impregnating and pouring high- and low-voltage components of electrical and radio equipment, transformers, and throttle valves, comprises mixing at temperature 50-60°C resin having molecular weight 1000-6000 with phosphorus-containing modifier, in particular triglycidyl phosphate or diglycidyl methyl phosphate, or diglycidyl methyl phosphonate, after which is added stoichiometric amount of hardener, in particular 4,4'-diaminodiphenylmethane or 4,4'-diaminodiphenyl sulfone, or 4,4'-diaminodiphenyl oxide.
EFFECT: reduced viscosity of compound, enhanced insulation and electric-strength properties, and simplified preparation procedure.
2 tbl, 17 ex
FIELD: woodworking industry, building materials industry, in particular wood fire- and biological protection.
SUBSTANCE: claimed composition contains (mass %): starch 4.13-5.0; phosphoric acid 18.36-20.0; amyl alcohol 2.0-3.0; dimethylphosphite 23.58-24.08; dimethylformamide 15.07-16.03; maleic acid 4.15-5.04, ethylene glycol 15.67-18.0, and balance: water. Composition of present invention has living time of 3 years.
EFFECT: composition providing wood fire- and biological resistance without quality losses.
3 tbl, 1 ex
FIELD: chemistry of organophosphorus compounds.
SUBSTANCE: invention relates to compounds with the bond C-P, namely to phosphorus-boron-containing methacrylate that can be used as inhibitor of combustion of polyvinyl alcohol-base film materials. Invention describes phosphorus-boron-containing methacrylate of the following formula: wherein n = 4-8. Polyvinyl alcohol films modified with indicated phosphorus-boron-containing methacrylate shows the enhanced refractoriness, rupture strength up to 206 kgf/cm2, water absorption up to 240% and relative elongation up to 12%.
EFFECT: valuable properties of substance.
1 tbl, 2 ex
FIELD: methods of production of antipyrines; woodworking industry; production of fire-resistant plate products; construction engineering.
SUBSTANCE: proposed method includes interaction of carbamide formaldehyde concentrate of the following composition, mass-%: carbamide, 21-25; formaldehyde, 54-60; the remainder being water with ammonia water taken at equimolar ratio formaldehyde and ammonia at heating in weak-alkaline medium in presence of aminoalcohol selected from group containing mono-ethanol amine, di-ethanol amine, tri-ethanol amine, amine modifying agent AM-1 or their mixtures added together with ammonia water in the amount of 0.01-0.02 mass-% per 100 mass-% of carbamide formaldehyde concentrate at subsequent introduction of 1-10 mass-% of carbamide per 100 mass-% of carbamide formaldehyde concentrate, cooling, neutralization of reaction mixture by orthophosphoric acid to pH=6.0-8.0 and introduction of 0.1-0.5 mass-% of sodium fluosilicate and 0.1-0.8 mass-% of potassium bichromate into synthesized product.
EFFECT: optimization of synthesis of antipyrines at enhanced fire resistance efficiency.
1 tbl, 2 ex
FIELD: methods of production of antipyrines for fireproof treatment of wood materials.
SUBSTANCE: proposed method includes interaction of carbamide formaldehyde concentrate of the following composition, mass-%: carbamide, 21-25; formaldehyde, 54-60; the remainder being water with ammonia water taken at equimolar ratio by formaldehyde and ammonia at heating in weak-alkaline medium in presence of aminoalcohol selected from group containing mono-ethanol amine, di-ethanol amine, tri-ethanol amine and amine modifying agent AM-1 added together with ammonia water in the amount of 0.01-0.3 mass-% in terms of carbamide formaldehyde concentrate followed by introduction of carbamide in the amount of 1-10 mass-% per 100 mass-% of carbamide formaldehyde concentrate; then, reaction mixture is cooled and neutralized with ortho-phosphoric acid to pH= 6.0-8.0.
EFFECT: optimization of synthesis process of antipyrines at retained fire resistance efficiency.
1 tbl, 2 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: polymer materials.
SUBSTANCE: invention provides a method for manufacturing polyvinyl alcohol-based modified films with elevated fire resistance by means treatment with phosphorus-containing compounds. In particular, 5-15% aqueous solution of methyl phosphite borate is used and films are treated during 1-2 min and then dried at ambient temperature. Thus obtained polymers are characterized by good film-forming properties, exhibit self-extinction capability, and show water absorption at a level of 1.14%. Films can be used in various industry and national economy fields.
EFFECT: improved performance characteristics of films.
1 tbl, 3 ex
FIELD: fire-retardant ornamental textile materials, fillers for fire retardant composites.
SUBSTANCE: claimed method includes burn retardant into polyester fiber. As burn retardant 5-7 % dimethyl phosphonate aqueous solution is used. Additionally material is treated with CO2-laser irradiation with power of 350 W, density of 5.3 W/cm, for 25-30 s up to dimethyl phosphonate content on fiber of 12-15 mass %. Fibers are characterized with oxygen index of 31.5-33 %, and fiber durability is narrow increased.
EFFECT: new flame-retardant materials.
1 tbl, 11 ex
FIELD: organic chemistry, chemical technology.
SUBSTANCE: invention relates to methods for synthesis of antipyrenes used in fireproofing wood materials. Method for synthesis of antipyrenes is carried out by mixing two components one of that - amidophosphate is synthesized by interaction of carbamidoformaldehyde concentrate comprising, wt.-%: carbamide, 21-25; formaldehyde, 54-60, and water, the balance, with ammonia water taken in equimolar ratio with respect to formaldehyde and ammonia, at heating in weakly alkaline medium, in the presence of aminoalcohol chosen from the group comprising monoethanolamine, diethanolamine, triethanolamine, amine modifying agent AM-1 adding in common with ammonia water in the amount 0.01-0.3 wt.-% as measured for carbamidoformaldehyde concentrate followed by addition of 1-10 wt.-% of carbamide as measured for 100 wt.-% of carbamidoformaldehyde concentrate, cooling and neutralization of the reaction mixture with ortho-phosphoric acid to pH 6.0-8.0, and the second component - an aqueous dispersion of acrylic or vinyl acetate polymers. Invention provides optimization conditions for synthesis of antipyrenes with simultaneous retention of their high effectiveness after contact of water with wood.
EFFECT: improved method of synthesis.
1 tbl, 6 ex
FIELD: fire-resistant materials.
SUBSTANCE: porous substrate, in particular polymer substrate, is impregnated with fire-resistant agent, namely organophosphorus compound having hydrophilic or hydrophobic nature to be compatible with surface of porous carrier. Impregnation is effected according to dry impregnation technique.
EFFECT: considerably improved fire resistance of materials without harmful effect on properties of material at temperatures above 200°C.
30 cl, 2 tbl, 4 ex