Way of anticipation of wood
(57) Abstract:The invention relates to the protection of wood and can be used in the finishing and finishing a wood surface. Preservation treatment is carried out by treating the surface with an aqueous solution of aromatic compounds of the formula
< / BR>where X=-NH-N+H3Cl-; X=-N=N+BF4-. The method allows to extend the range of the applied antiseptics for wood protection, protects the wood from destruction and from the action of fungi and bacteria, preserves the wood. table 2. The invention relates to the field of wood protection and can be used in finishing, the finishing of the wood while protecting its surface.Known methods of anticipation of wood preservatives organic origin, such as dinitrophenol dinitrophenol sodium [N. N. Melnikov, Y. A. Bashkatov "Chemistry of herbicides and plant growth regulators" (GENTZ, 1962, S. 73,723) - similar].In connection with the environmental risks of chlorinated antiseptics, pentachlorophenol and pentahlorfenolyata, circle the applicable organic antiseptics reduced.Currently used antiseptic is steni" (GENTZ, 1962, S. 73,723 ) - similar], also have drawbacks. So, chlorpicrin is liquid with a pungent characteristic odor, already at a concentration of 0.025 mg/l causes tearing, and at a concentration of 0.1-0.4 mg/l unbearable even for 1 minute [N. N. Melnikov, Y. A. Bashkatov "Chemistry of herbicides and plant growth regulators (HONTI. M., 1962, S. 97, 723) - similar].The disadvantage of 2-4-dinitrophenol and 2-4-dinitrophenolate is that they are explosive when heated or kick can explode [N. N. Melnikov "Chemistry of pesticides" (COX, Chemistry, M., 1968, S. 495, 305) ].The closest analogue of the claimed technical solution is a way of anticipation of wood, including the treatment of its surface with an aqueous solution of dinitrophenolate sodium [Former M. D., Fedorov, N. And. Protective treatment of wood, Moscow, Forestry, 1981, S. 42 ].The proposed method antiseptic of wood allows you to obtain the technical result consists in decreasing the toxicity of wood protection and simplification of testing.The invention consists in the following. Preservation treatment is carried out by treating the surface with an aqueous solution of aromatic nitrocompounds FD is a closer analogue of the inventive method has a simpler technology of wood processing.Due to the fact that preservation treatment of wood is the result of chemical interaction diazocompounds and hydrazine, an antiseptic is a part of the molecules of the wood and is not washed away from her.Inventive step of this method lies in the fact that it is not known use nitrosamine salts of aromatic Gerasimov and diazo compounds as antiseptics.The method is as follows.The wood surface treated with an aqueous solution of salts of aromatic nitrosamine of hydrazines and diazo compounds.In the present invention it is proposed to use as preservative, hydrochloric acid n-nitrophenylhydrazine and tetrafluoroborate n-nitrobenzothiazole.The type of these compounds, their empirical and structural formulas are shown in table. A.Example 1. Reagent 1-Oh group.The wood surface treated with an aqueous solution tetrafluorosilane 4-nitrobenzothiazole concentration 0,210-2mol/L.The surface treatment of wood produced by wetting or aerosol method.Example 2. The reagent 2-nd group.The sample on the boil and spontaneously cooled.Treated with reagents 1-St and 2-nd groups of samples of different types of wood were tested for funginertness to the effects of fungi. The samples were infected with a spore suspension of the test fungi (Aspergillus higer, Fusarium moniliforme, Penicillium chrusogenum, Paecilomyces varicoti, frichoderma viride) were stored in optimal conditions for the development of these fungi: temperature 28oC and a humidity of 98% within 28 days.In the process of testing has identified the following indicators of gribomont:
whether the material is a food source for the development of fungi. The refinement was carried out by a suspension of fungal spores in distilled water (Method A).the resistance of wood to the effects of metabolic products of fungi in the presence of an additional power source (Chapek's medium). Processing of data was performed spore suspension of fungi in the environment of čapek-doksa ().- growth of mikromitsetov on the sample surface in the presence of an additional power source (environment čapek).The results are given in table.1 and 2.From the above test shows that the resistance to growth of fungi in the presence of an additional source of nutrition showed cedar, spruce, pine, larch, treated with a solution of tetraform is elhedrine.From the above test also shows that resistance to metabolic products of fungi have all test samples of wood.The proposed method allows you to:
1. To broaden the number of used antiseptics for wood protection.2. To inhibit the development of microbial spoilage of wood.3. To protect wood from decay and from the action of fungi and bacteria.4. To preserve the wood. Way of anticipation of wood, including the processing of its surface, characterized in that the treatment is carried out in an aqueous solution of aromatic nitro compounds of the formula
< / BR>where X = -NH-N+H3Cl-;
X = -N= N+BF2-.
FIELD: sawmill and woodworking industry, in particular protection of wood and wood-based materials.
SUBSTANCE: claimed composition contains molecular iodine (1-2.5 %), introduced in potassium iodide KJ or sodium iodide NaJ (0.6-3 %) as protective agent, and liquid glass (1-3 %). Composition is useful in protection of wood-based materials, in particular woodwork constructions from blue stain fungi and mildew.
EFFECT: effective protection of wood and wood-based materials.
FIELD: protective coating composition useful in paint, lacquer, and sealing compound.
SUBSTANCE: claimed composition contains non-toxic compound, in particular (-)-trans-para-methane-3,8-diol, (-)-menthol, (-)-menthyl chloride, menthoxy propanediol, (-)-isopulegole or (-)-menthone, and film binder.
EFFECT: composition containing environmentally friendly agents having activity against biofouling and fungi attaching.
16 cl, 8 ex, 4 tbl, 6 dwg
FIELD: organic chemistry, covers.
SUBSTANCE: invention relates to preparing the biocide epoxide composition. The composition comprises the following ratio of components, mas. p. p.: epoxide enamel "TANEP-5341" or "TANEP-622" soluble in organic solvents, 100; polyhexamethylene guanidine hydrochloride, 1.5-3.0, and hexahydro-1,3,5-di-(hydroxyethyl)-triazine, 1.5-3.0. The mass ratio of hexahydro-1,3,5-tri-(hydroxyethyl)-triazine to polyhexamethylene guanidine = 1:1. Invention provides the development of biocide composition of a broad spectrum effect that elicits bactericidal and fungicide properties simultaneously and improved physical-chemical indices of the protecting film. Invention can be used in anti-corrosive protection of internal surfaces of metallic and ferroconcrete capacities subjected for electrochemical and microbiological corrosion, especially, by effect mold fungi specific for grains, flour, oil and petroleum products also.
EFFECT: improved and valuable properties of composition.
3 tbl, 16 ex
FIELD: paint-and-varnish industry.
SUBSTANCE: invention relates to polymer compositions to prepare biocidally active lacquer coatings. Composition proposed by invention contains nonionic water-dilutable film-forming component in the form of aqueous polymer dispersion, aqueous solution of biocide additive(polyhexamethylene-guanidine), and polymer paste. The latter is prepared from pigment, filler, and dispersing solution containing water, anionic polymeric disperser, nonionic cellulose thickener, emulsifier, and organic solvent, weight ratio of nonionic cellulose thickener to anionic polymeric disperser ranging from 2.0:1.0 to 1.0:2.0. In particular, nonionic cellulose thickener is a hydrocellulose derivative in amount 0.5=1.0%, anionic polymeric disperser is represented by sodium and ammonium salts of polycarboxylic acids (0.17-0.55%), and anionic polymeric disperser is sodium polyphosphate.
EFFECT: increased resistance of coating to water in cases where humidity is present under indoor conditions and ensured bactericidal effect when dry surface is wiped with wet cloth.
4 cl, 2 tbl
FIELD: construction materials industry; chemical industry; other industries; production of the impregnating compositions for the fire-protection and bio-protection of the timber and the timber materials.
SUBSTANCE: the invention is pertaining to the field of protection of the timber and the materials on its basis timber and the timber materials inflammation and the biodeteriorations. The invention presents impregnating composition for the fire-protection and bio-protection of the timber and the materials on its basis containing 24.0-32.0 mass % of the phosphorous acid, 20.0-27.0 mass % of carbamid, 6.0-10.0 mass % of the oxyethylidenediphosphonic acid the rest - water. The composition additionally contains 0.5-1 mass % of the additive reinforcing the fungicidal activity of the impregnating composition, in the capacity of which use the inorganic boron compounds or the ammonium salts and 1.0-10.0 mass % of the additive reinforcing penetrability of the impregnating composition into the timber, in the capacity of which use the monobasic alcohol either bibasic alcohol or the aprotic dipolar solvents. The technical result of the invention is production of the composition, which is stable for prolonged storage and capable at the small costs to ensure the high level of the fire-and-bio protection of the timber and is suitable for application in the conditions of the building sites till the temperature of minus 30°C.
EFFECT: the invention ensures production of the impregnating compositions for the fire-protection and bio-protection of the timber and the timber materials, which is stable for prolonged storage and capable at the small costs to ensure the high level of the fire-and-bio protection of the timber and is suitable for application in the conditions of the building sites till the temperature of minus 30°C.
5 cl, 2 tbl, 3 ex
SUBSTANCE: invention relates to agents used in disinfection. Invention proposes a biocide paint and varnish composition that comprises film-forming agent as paint and varnish material and biocide additive wherein the composition comprises the following components, wt.-%: hydrophobic polyhexamethyleneguanidine or poly-(4,9-dioxadodecaneguanidine) organo-soluble salt with exception of polyhexamethyleneguanidine oleate, 1.5-7.5, and film-forming agent as paint and varnish material, 92.5-98.5. Invention can be used for preventive prolonged disinfection of compartments with high accumulation of humans and their long time staying.
EFFECT: valuable properties of composition.
6 cl, 2 tbl, 6 ex
FIELD: paint and varnish materials.
SUBSTANCE: invention relates to an aqueous-dispersion dye. The coating composition comprises the following components, wt.-%: epoxy-rubber adduct, 15-36; low-molecular epoxide resin, 10-18; surfactant, 0.5-0.65; biocide additive, 0.1-0.4; accessory substances, 0.1-0.8, and water, the balance. Epoxy-rubber adduct is prepared by co-condensation of epoxide resin and liquid nitrile rubber by functional groups, and 2.0-10.0 weight p. p. of hardening agent is taken per 100 weight p. p. of abovementioned composition. The composition can comprise additionally pigments and/or filling agent. Invention provides enhancing stability of covers against effect of petroleum products, acids, bases and gaseous oxides in simultaneous expanding functional possibilities for their using based on increasing the temperature range in applying on surfaces to be protected. Proposed composition is used in building in carrying out works associated with protection of metal, concrete, ferroconcrete and other surfaces against effect of corrosive environment for aims of priming and preparing protective-decorative covers.
EFFECT: improved and valuable properties of composition.
2 tbl, 6 ex
FIELD: domestic chemistry and construction engineering for operation under high humidity and high temperature conditions.
SUBSTANCE: proposed polymer primer contains styrene acryl dispersion on base of styrene with different acryl monomers in the amount of 20-50 mass-%, zinc methacrylate acetate in the amount of 0.5-0.7 mass-% and water.
EFFECT: polymer primer possesses fungicidal and bactericidal properties.
5 tbl, 28 ex
SUBSTANCE: invention pertains to obtaining coatings with disinfectant properties, meant for sanitising premises, equipment, preservation and disinfection of water, including drinking water. The method involves the following. First, a derivative of polyhexamethyleneguanidine is obtained in the form of a base or hydrophobic salt, for example, an oleate from polyhexamethyleneguanidine chloride. Further, a solution of the obtained derivative of polyhexamethyleneguanidine is prepared in water or organic solvent and a solution of hydrophobic film-forming polymer from a series of chlorosulfonated polyethylene, polytrichlorobutadiene in an organic solvent. The obtained solutions are mixed with formation of a film-forming interpolymer with defined ratios and concentration of the solutions. The film-forming interpolymer is deposited onto a prepared surface in form of a coating of at least three layers, and possibly in form of a composition with target additives. Each layer is dried in air and then undergoes final hardening. The hardened interpolymer (coating) should have mass ratios of the derivative of polyhexamethyleneguanidine and the hydrophobic polymer in the range of 7.5-45.0 and 55.0-92.5 respectively. An alternative to the method is depositing a coating of a film-forming interpolymer, also obtained by combining a derivative of polyhexamethyleneguanidine, possibly in form of a solution, with an epoxide compound, possibly combined with a hardener, and also possibly in form of a composition with target additives. After hardening of such a coating, the mass ratio of the derivative of polyhexamethyleneguanidine and the epoxide resin should be in the range of 32-34 and 66-68 respectively.
EFFECT: method allows for effective disinfection of premises, equipment, as well as decontamination of water using a non-toxic substance with prolonged effect.
3 cl, 8 tbl
FIELD: construction; chemistry.
SUBSTANCE: description of a plate with insect repellent properties obtained by coating the precoated surface with an insecticidal solution containing a surface-active substance, alcohol and insecticide in an aqueous dispersion of the colloidal silica. In this case, the insecticide was selected from the pyrethroids and the plate is a wood-fiber concrete slab.
EFFECT: permanence and effectiveness of the insect repellent properties.
5 cl, 1 tbl