RU2703636C1 - Enamel for weather resistant radiation-resistant decontaminated antifouling mushroom-resistant coating - Google Patents

Abstract

FIELD: paint industry.

SUBSTANCE: invention relates to paint materials and coatings thereof and can be used in shipbuilding, nuclear power engineering, petroleum industry for anticorrosive, anti-fouling protection of equipment, metal, concrete surfaces and structures, rubber, plastics and composite materials, operated in conditions of combined action of aggressive environmental factors, including deep sea water. Epoxide-phenylene film-based enamel contains aromatic conjugated bonds in hydroquinone oligomer, which is epoxidised with low-molecular epoxy resin to obtain a base resin, and when dissolving to 57–60 wt% in a mixture of solvents – lacquer. Semi-finished enamel includes lacquer, traditional fillers and pigments, curing agent, as well as modifiers.

EFFECT: invention enables to obtain an anticorrosion, anti-fouling, mushroom-resistant coating.

4 cl, 1 tbl

Description

Application area

The result of intellectual activity - the invention relates to paints and varnishes and coatings from them and can be used in shipbuilding, nuclear energy, for special, anticorrosive, anti-fouling protection of equipment, metal, concrete surfaces and structures, rubber, plastics and composite materials operating in combined conditions exposure to aggressive environmental factors, including deep sea water. The coating thickness is two or three layers, with a total thickness of 180 to 240 microns.

State of the art

Of great importance for successful navigation is the fight against corrosion and fouling of ships. In the last century, this problem has become of particular importance. Thus, fouling reduces (up to 50%) the speed of ships, increases (up to 40%) their fuel consumption, increases (up to 20% or more) the mass of hydraulic structures, disrupts the operation of water pipelines, platforms for oil and gas production on the shelf (V.A. Karpov. Biocorrosion in the marine environment and the basis for the use of protective coatings. Abstract of the dissertation. Moscow, 2012, p. 3). Currently used antifouling paints and varnishes by the mechanism of protective action can be divided into contact-type materials, soluble materials and self-polishing paints and varnishes. The protective mechanism of traditional contact-type enamels is based on the leaching of the biocide approximately in proportion to its content in the paint film. An increase in the biocide content in the film leads to an increase in the effective action of the coating, but at the same time, the rate of expenditure of biocides also increases. Therefore, the increase in service life is not linearly related to the amount of biocide. In addition, a gradual increase in the thickness of the leached layer leads to a decrease in the rate of leaching of the biocide from the rest of the coating mass. When the thickness of the leached layer is about 50-70 μm, the leaching rate decreases to values at which it becomes possible to attach fouling. Thus, the biocide remaining in the film no longer provides protection against fouling. Soluble type antifouling paints are usually produced on the basis of rosin and copper compounds are used as biocides in them. These materials are usually used to protect against vessel fouling during the completion period. Their service life is small and is about 6-12 months. An increase in the service life of these coatings due to an increase in thickness is practically impossible due to an increase in the coatings of internal stresses leading to cracking and peeling (http: //www.corrozii.het> korroz / biblioteka / control-of-paint- ...).

Known is widely used in industry enamel EP-525 GOST 22438-85, which is a suspension of pigments and fillers in a solution of epoxy resin E-41 in a mixture of organic solvents with the addition of hardener No. 1. However, it has limited atmospheric resistance and is intended for application to pre-primed metal and non-metallic surfaces; the enamel-based coating does not have anti-fouling and mushroom-resistant properties.

Known enamel EP-5285, EPOFENIPLEN ^® TU 95-2184-90 (NIKIMT-Atomstroy JSC), designed for decontaminated decoration of structures and rooms, the external surfaces of pipelines, equipment, the surface of which is exposed to heat and consisting of a prefabricated enamel and hardener. Prefabricated enamel is a suspension of pigments, fillers and special additives in a film-forming solution based on resins C-41 and K-421-02. Hardener - polyethylene polyamine. The disadvantages of coating on the basis of enamel are: operation of the coating only in conditions of U1 according to GOST 9.104-79 at a temperature of not more than 80 ° C, the absence of antifouling and mushroom-resistant properties.

Known enamel DEP ^® TU 6992-002-08621486-2013 (JSC "NIKIMT-Atomstroy") designed to obtain a protective decontaminated polymer coating, operating in the conditions of UHL1, T1 according to GOST 9.104-79, designed for corrosion protection of equipment, metal, concrete, reinforced concrete structures in nuclear energy and other fields of technology, as well as for protection against marine corrosion, which is a two-component product consisting of a semi-finished enamel and hardener. An enamel semi-finished product is a suspension of pigments, fillers and special additives in a film-forming solution based on an epoxidized hydroquinone oligomer (obtained by oxidative polycondensation and polymer-analogous transformations) in a mixture of organic solvents. As a hardener are used: hardener No. 1, hardener No. 5, polyethylene polyamine or other hardeners for epoxy enamels. The enamel-based coating has high physicochemical properties: resistance to radiation (resistance to radiation aging), deactivability, resistance to aggressive environments (acids, alkalis, sea water), elevated temperature, high anticorrosion properties. However, the disadvantages of enamel-based coatings are not pronounced antifouling properties.

A multilayer antifouling coating is known consisting of a layer of antifouling paint and a surface layer based on polyorganomethacrylate containing organotin radicals (A.S. SU 579294 A1, class C09D 5/14, C08K 5/57, published 05.11.1977). In this case, as an antifouling paint, for example, paint ХВ-5153 or ХВ-750 based on perchlorovinyl resin containing copper oxide, a mixture of rhodanized copper and an arsenic-organic compound is used as a biocide. This coating reduces the initial leaching rate of the poison, but does not provide an increased modern level of protection against fouling.

A composition is known in which nitrous oxide and copper oxide are used together with “Paris green” as a biocide (Translated from English by Alexandrova E.V., Gurevich E.S., Maksimova S.V., Tasuna N.T. Edited by Nikitin V .N., Tarasova N.I. Moscow: Military Publishing House, 1957, 503 pp.).

Also known are the compositions of thermoplastic paints based on paraffin and rosin, used to protect ships from fouling (Gurevich ES, Iskra EV, Kutsevalova EP "Protection of marine vessels from fouling". Leningrad: Shipbuilding, 1978, p 105-108). However, these formulations are characterized by a short time of their active action (no more than 3-4 months).

A known composition for applying a thermoplastic coating (Yanov N.A. “Protection of the underwater part of ships with YAN-7A mastic paint.” Vladivostok: Primorsky publishing house, 1962, 52 pp.), Containing, wt.%: Rosin from 50 to 55; paraffin from 10 to 15; copper oxide from 25 to 30; talc from 5 to 10. The composition has a rather long action, but its drawback is the low softening temperature of the paint: 45-55 ° C, which leads to melting of the paint under direct sun rays.

Known antifouling paint based on a binder, antifouling and neutral pigments, organic toxins, plasticizers and organic solvents in which rosin ester is used as a binder, obtained by the interaction of rosin with organic acids, for example, salicylic acid (A.C. SU 273905 A1, cl C09D 5/16, C09F 1/04, publ. 04/15/1983). The disadvantage of this paint is its short service life (not exceeding 1.5 years), long drying time of the coating in air, insufficient weather resistance and insufficient resistance of the coating to fouling with a bacterial-mucous film, lack of rain resistance, the coating is not deactivated.

Known multi-layer combined antifouling coating that provides repellent chemobiocidal protection (RU 2478114 C1, CL C09D 5/14, C09D 5/16, C09D 193/04, B05D 5/00, published March 27, 2013) designed to protect ships and hydraulic structures in the shipbuilding industry and hydraulic engineering. The coating contains the first undercoat with an anticorrosive primer based on epoxy resin with targeted additives. The coating contains a second coating made of 1-2 layers of anti-fouling enamel with an insoluble matrix based on a vinyl polymer modified with epoxy resin and containing copper oxide as a biocide. A dried (cured) second coating is coated with a third topcoat of at least one layer of sparingly soluble or quick-dissolving self-polishing rosin-based paint in combination with polytetrafluoroethylene containing a biocide in the form of copper compounds. The third (top) coating is applied in a continuous layer or in fragments (in the form of a lattice). The disadvantage of the coating is its multilayering, and therefore an increase in the coating internal stresses leading to cracking and delamination, the significant complexity of its production, the duration of drying of the coating as a whole, there is no data on its deactivability and rain resistance.

Known antifouling anticorrosion paint (patent RU 2115680 C1, class C09D 5/16, C09D 5/08, publ. 07/20/1998) related to the means of protection against fouling in a marine environment, including a film-forming base in the form of perchlorovinyl resin mixed with rosin and (or) pentaphthalic lacquer, a copper-containing biocide, a solvent, as a biocide - a spent copper-chromium barium catalyst for the process of hydrogenation of synthetic fatty acids into higher fatty alcohols, and as a solvent, a mixture of solvent-naphtha and butyl acetate in the ratio 1: 4 and the following component ratio, wt. %: film-forming base - 14.4-21.7; spent copper-chromium barium catalyst - 6.0-39.0; solvent is the rest. The paint additionally contains a mixture of zinc in an amount of 8.0-9.5 wt. %, modifier and plasticizer, a compound selected from the group consisting of acetylacetone, adipic acid, aniline, salicylic acid anilide and dioctyl phthalate in an amount of 0.8-6.0 wt. % The disadvantage of the paint is a short service life (1-2 years), a long drying time of the coating in air, insufficient weather resistance, lack of rain resistance, the coating is not decontaminated.

The known one-component antifouling silyl acrylate coating SeaQuantum Ultra operating on the principle of chemical hydrolysis. Provides excellent anti-fouling protection and unrivaled housing performance with precisely predictable and consistent self-polishing properties. It is used as a finishing layer (http://jotun-spb.ru> sites / default / files / seaquantum_ultra ...). The disadvantage of this coating is the possibility of its operation only under conditions of immersion in a liquid, the use of it only as a finishing layer of a multilayer coating in significant thicknesses, for example, in the multilayer coating scheme recommended by the Central Research Institute of CM "Prometheus" consisting of two layers of Inert enamel 165 of 250 microns each, one layer SAFEGUARD UNIVERSAL paints 50 microns thick and three surface layers of SeaQuantum Ultra enamel with a thickness of 120 microns each, the total coating thickness reaches 910 microns (instruction UTAYA.062623.001 I2 - JSC Afrikantov OKBM) and, as a result, ichenie wherein the internal stresses in the coating which lead to cracking and peeling. There is also no data on the resistance and deactivability of the coating.

Known enamel weather-resistant corrosion-resistant radiation-resistant and decontaminated coatings (patent RU 2307143 C2, class C09D 163/00, C08L 63/00, C08G 59/14, C08G 61/00, C08K 3/34, C09D 5/08, publ. 27.09. 2007) designed for weather-resistant corrosion-resistant radiation-resistant and decontaminated coatings used in shipbuilding, aerospace engineering, nuclear energy, as well as in the oil and food industry for external and internal works in the protection of metals, wood, rubber, concrete, brick, slate surfaces used in especially bo aggressive environments, which is a kit that includes 100 wt. including semi-finished enamel and 2.1-28.6 wt. including hardener amine type.

Prefabricated enamel contains the following ratio of ingredients in wt. %: 17-30 pigments, 7-15 mixtures of microtalc, kaolin and micromica as a filler, 5.22-6.93 organic solvent, the rest is 50-60 wt. % solution of base epoxy in an organic solvent.

The degree of polycondensation in the organic solvent of the base resin is n = 0-2. The base epoxy is obtained by epoxidation of aromatically conjugated hydroxyphenylene having a polycondensation degree n = 0-2, obtained from dihydric phenol or alkylresorcinol.

The epoxidation of hydroxyphenylene is carried out in the melt at a temperature of 120-165 ° C in the presence of 0.15-0.35 wt. % 2,4,6-trisdimethylaminomethylphenol to an epoxy content of 10.1-11.0 wt. % Enamel-based coating is highly resistant to atmospheric agents, corrosion, radiation and to decontaminants. The disadvantages of the coating is the lack of antifouling and fungus resistant properties.

The closest analogue is antifouling enamel PROGIDROF (RU 2602553 C1, class C09D 163/00, C09D 5/16, publ. 11/20/2016) designed to produce hydrophobic antifouling coatings, used in shipbuilding and for the protection of metal products and structures used in atmospheric conditions, consisting of an amine type hardener and an enamel semi-finished product, which is a suspension of pigments and fillers in a solution of epoxy film-forming, synthesized from aromatically conjugated hydroxyphenylene and containing carbon e technical and aerosil, in which the prefabricated enamel further comprises a liquid fluorinated modifier, a solid finely divided fluorinated modifier in the following ratio of ingredients in the prefabricated enamel, wt. %: technical carbon 1.5-2.5, aerosil 2.5-3.5, liquid fluorinated modifier 2.5-4.5, solid finely dispersed fluorinated modifier 3.5-5.0, epoxy film-forming solution up to 100, wherein the epoxy film-forming solution contains pigments and fillers in the form of fluorinated finely divided fluoroplastic 2.5-4.5 wt. % and perfluoropolyether liquid 3.5-5.0 wt. %, and as a hardener use gamma-aminopropyltriethoxysilane AGM-9 and designed to produce hydrophobic antifouling coatings, is used in shipbuilding and to protect metal products and structures operating in atmospheric conditions.

The disadvantages of the coating based on the solution in question is that it: has only one color - black, which is not enough for watercraft; suitable for use only in atmospheric conditions; not resistant to radiation aging; It is not deactivable and mushroom resistant. In addition, the hardener AGM-9 requires curing of the enamel by heating the coating at 80-90 ° C for 2-3 hours, which presents insurmountable difficulties when painting large-sized products and structures.

SUMMARY OF THE INVENTION

The technical result of the invention is to eliminate the disadvantages of the closest analogue to provide anti-corrosion radiation-resistant deactivated antifouling fungus-resistant coating properties on metal, concrete, plastic and composite materials under the combined effects of external factors, including underwater operation of the facility.

The technical result is achieved by the invention: Enamel for weather-resistant radiation-resistant deactivating anti-fouling fungus-resistant coating, consisting of an amine type hardener and a prefabricated enamel, which is a suspension of pigments, fillers and modifiers in a solution of epoxy film-forming, synthesized from aromatically conjugated hydroxyphenylene (hydroquinone) as amine hardener take 50 wt. % solution of low molecular weight polyamide PO-300 in a mixture of o-xylene and ethyl cellosolve and triphenyl phosphate and dimethyl sulfoxide as modifiers in the following ratio of ingredients, wt. parts:

the specified solution of low molecular weight polyamide PO-300 100.0 triphenyl phosphate 5.0-10.0 dimethyl sulfoxide 10.0-15.0;

the semi-finished product contains: as the base resin (film-forming) - hydroquinone oligomer synthesized by oxidative homocondensation at a temperature of 240-250 ° C with a degree of polycondensation n = 0-2 and then epoxidized with a low molecular weight epoxy resin in a melt at a temperature of 120-165 ° C in the presence of 0.12-0.35 wt. % 2,4,6-trisdimethylaminomethylphenol to wt. the proportion of epoxy groups 10.1-11.0%; the solvent is a mixture of acetone, o-xylene and ethyl cellosolve, taken in a mass ratio of 1: 1: 1;

as pigments and fillers to add color to the enamel, additionally take traditional components in the following ratio of ingredients, wt. %:

a solution of 57-60 wt. % base resin in the specified solvent 56.0-60.0 pigments and fillers 40.0-44.0;

enamel for application to the surface of the object before use is taken, wt. parts:

prefabricated enamel 100.0 the specified solution hardener PO-300 modified 18.0-25.0 and additionally as a modifier - trans beta-nitrostyrene 0.3-2.0.

In addition, the enamel as pigments additionally contains in the semi-finished product: red iron oxide pigment, and / or titanium dioxide, and / or crown lead molybdate, and / or crown lead lemon, and / or crown lead yellow, and / or carbon black, and / or phthalocyanine blue, and / or chromium oxide pigment.

In addition, the enamel additionally contains a filler in the semi-finished product - a mixture of microtalc, kaolin and thixotropic aerosil.

In addition, the coating based on it consists of two or three layers with a total thickness of 180 to 240 microns.

The invention is illustrated by an example.

In the implementation of the technical solution, basic materials are taken as starting materials:

- hydroquinone - a product of the distillation of shale oil - fraction 270-320 ° C;

- sulfuric acid contact;

- epoxy resin Dianova with wt. fractions of epoxy groups - 22-24%;

- hardener - solution of amine hardener PO-300 (hardener No. 5);

- modifiers: those triphenylphosphate; dimethyl sulfoxide (dimexide) - 98.9-99.8% concentration; trans beta-nitrostyrene;

- solvents: acetone, o-xylene, technical ethyl cellosolve;

- accelerator - trisdimethylaminomethylphenol (Alkofen-MA);

- pigments in stock: red iron oxide, and / or titanium dioxide, and / or lead molybdate crowns, and / or lemon lead crowns, and / or lead yellow crowns, and / or carbon black, and / or blue phthalocyanine, and / or chromium oxide pigment;

- filler - a mixture of micromica, microtalc and kaolin and aerosil.

Obtaining an oligomer of hydroquinone according to the flow chart.

In a device heated to 60 ° C with a mixing device with a capacity of 0.623 m ³ , equipped with a heating jacket, a device for distillation and condensation of volatile (acidic water), loading devices and a drain pipe, 225 kg of hydroquinone are charged through a drain pipe using a vacuum and the mass is heated to 180 ° C, and with stirring of the melt, 6.75 kg of contact sulfuric acid are charged through a meter. The temperature in the apparatus is raised at a speed of 2-3 ° C per minute to 240-250 ° C, while there is an intense distillation of acidic water until it stops after 2-3 hours, when the heat exchanger cools due to the stopped flow of vapor. The apparatus is set to cool to 150-180 ° C and then the resulting product is poured into a container.

Epoxidation of the hydroquinone oligomer according to the flow chart.

Carried out in a device with a capacity of 1.2 m ³ , load the oligomer in an amount of 100 kg in a device heated to 80 ° C, mix for 10-15 minutes until the temperature stabilizes 120 ± 2 ° C and load from barrels with vacuum 480 kg of epoxy heated to 60 ° C, stirred for 10-15 minutes, and the reaction mass was heated to 120 ± 2 ° C, then an accelerator of 0.6 kg of trisdimethylaminomethylphenol was introduced through a measuring device and a temperature increase was observed due to the reaction exotherm to 155-160 ° C, after which spontaneous temperature reduction to 125-130 ° C. The obtained resin base enamel prefabricated - film-forming in the amount of 580 kg with a loss of up to 4 wt. % of download.

The stirrer is stopped, the reactor is turned on, and 126 kg of ethyl cellosolve solvent (its boiling point 135-139 ° C) are loaded with vacuum for 5 minutes (the temperature drops to 100-110 ° C), after which 126 kg of o-xylene are loaded and the mass is reached 45-50 ° C, load acetone. Check wt. the proportion of epoxy groups — it is 11%; the viscosity of the solution at 20 ° C according to VZ-246 (with a nozzle diameter of 4 mm) is 80 s. A solution (lacquer) was obtained in an amount of 958 kg (taking into account losses of about 4 wt.% When loading and evaporating the solvent, which is permissible), which can be used for the manufacture of semi-finished products or independently with a hardener for priming concrete or metal.

Preparation of prefabricated enamel red-brown.

The varnish is fed into the ISB bead mill with a volume of the working chamber of 5 l with recirculation of its volume of 63 kg with pre-introduced 42 kg of pigments and fillers repeatedly until the degree of “mashing” of dispersion by a grinder of 50 microns is reached - this process takes 5 hours. The semi-finished product poured into metal buckets is averaged in a mixer and again poured into metal transportation buckets with a capacity of 20 l of 20 kg and closed with lids with a gramophone type lock. The density of the semi-finished product is 1450 kg / m ³ . Its viscosity is not measured, because introduced thixotroping agent - Aerosil. The yield of the semi-finished product is 100 kg - a loss of 2% - remains on the bead mill, which is then washed.

Preparation of enamel hardener.

50 wt. % solution of amine hardener PO-300 or hardener No. 5 at a temperature of 20 ° C in an amount of 50 l is placed in a 100 liter container with a mixing device and 6.25 kg of dimethyl sulfoxide modifier is introduced into it, mixed with an air mixer until a homogeneous mass is obtained (10 minutes) and then 0.5 kg to 3.7 kg of triphenylphosphate modifier is introduced in portions and each portion is stirred until complete dissolution, closed tightly with a lid, then the mixture is “stood” for one day and mixed again until a homogeneous modified mass is obtained hardener, it is packaged in 6.6 kg in polyethylene canisters, which are equipped with each bucket of semi-finished product. The amount of modified hardener introduced can be adjusted depending on the temperature of the coloring site, which is indicated in the passport on the enamel, based on customer requirements so as to ensure the enamel's viability and curing conditions.

Preparation and use of enamel.

Carrying out works to protect the hull of watercraft or port infrastructure is a special work, therefore, a representative of the enamel supplier who brings with him the modifier trans beta-nitrostyrene and controls its introduction into the enamel should be present. Its amount varies depending on the operating conditions of the facility in temperate or tropical climates.

The work of applying enamel to the prepared surface is performed in the following sequence:

- preparation of enamel;

- layer-by-layer coating;

- layer-by-layer drying of the coating.

Enamel preparation consists of thorough mixing and filtering the enamel semi-finished product, introducing a hardener into the semi-finished enamel, bringing the enamel to working viscosity (if necessary) with thorough mixing.

The enamel prefabricated is thoroughly mixed using a pneumatic mixer and filtered through a mesh No. 01N-02N according to GOST 6613-86. A hardener is introduced into the enamel semi-finished product with thorough mixing and allowed to stand for 15-20 minutes before application.

по ISO 8501-1), шероховатость поверхности - 40±10 мкм. Обеспыливание поверхности производят с помощью вакуумной системы отсоса пыли или с помощью обдувки сжатым воздухом по ГОСТ 9.010-80. Содержание пыли на очищенной поверхности определяется по ISO 8502-3:1992 и должно соответствовать эталонам 1-2 стандарта.The prepared material is applied by air and airless spraying, brushes or roller according to the appropriate coating scheme. Prior to coating the entire surface to be protected, strip coloring should be carried out in the areas of welds, mounting and bolting with enamel. Interlayer drying of enamel is from 4 to 24 hours at a temperature of (20 ± 2) ° C. A set of operational strength of the coating from 7 to 15 days at a temperature of (20 ± 2) ° C after applying the last layer. Permissible break time between the end of surface preparation and coating: in workshops - indoors - 6 hours, in open areas and under a canopy with normal air humidity (up to 75%) - 3 hours, with high humidity (more than 75%) - 0 , 5 h. The surface not subject to processing is previously protected by special devices. Mechanical surface cleaning is carried out using abrasive blasting methods. The degree of cleaning from scale and rust should correspond to 2 degrees according to GOST 9.402-2000 (

according to ISO 8501-1), surface roughness - 40 ± 10 microns. Dust removal of the surface is carried out using a vacuum dust extraction system or by blowing with compressed air according to GOST 9.010-80. The dust content on the cleaned surface is determined according to ISO 8502-3: 1992 and must comply with standards 1-2 standards.

Justification on the boundary values of the number of components used.

The amount of contact sulfuric acid introduced into the heated hydroquinone was selected empirically so that in order to obtain the oligomer with wt. monomer fractions of at least 12%, dimer of 15%, trimer of 65% and tetramer of not more than 8%. With a larger amount of contact sulfuric acid, a larger amount of tetramer is obtained, which reduces the solubility of the oligomer in epoxy resin and increases the viscosity of the film-forming base resin.

The ratio of the oligomer of hydroquinone to epoxy is determined by their equimolecular ratio of hydroxyl and epoxy groups and carried out by calculation.

Mas. The proportion of the hydroxyquinone oligomer-Alkofen-MA epoxidation accelerator is preferably 0.12%, a larger amount is used when its activity is low or when the exothermic effect of the reaction develops slightly when the temperature rises less than 1 ° C per minute.

Loss of the accelerator practically does not occur - it remains in the mass of varnish and semi-finished product and accelerates the curing of enamel when it interacts with the hardener in the coating.

Optimal wt. the proportion of triphenylphosphate in the hardener is 7.5 the amount when it is introduced into the hardener is less than 5.0 wt. parts, the effect of plasticization is weak, and with the introduction of more than 10.0 wt. parts decreases the reactivity of enamel. With the combined action of triphenylphosphate enamel hardener with dimethyl sulfoxide in the hardener, compensation for a decrease in reactivity is observed since the latter accelerates the action of amines. Optimal wt. the proportion of dimethyl sulfoxide in the hardener is 12.5 wt. parts per 100.0 wt. parts of the solution PO-300, more than 15.0 wt. parts increases the drying speed of the coating, with the introduction of less than 10.0 wt. parts decreases its biocidal ability and the carrying capacity of the transfer of biocides - triphenylphosphate and trans-beta-nitrostyrene to the coating surface, with more than 15.0 wt. parts, these properties are manifested actively, which entails the rapid consumption of these components, which reduces the life of the coating.

The amount of modified hardener is selected for the prefabricated enamel so that the reactivity of the enamel during coating formation is at least 4 hours when cured to a degree of 3, with a maximum amount, not more than 8 hours with a minimum amount, which is taken into account when determining the time for successful drying and setting the time interlayer drying for applying subsequent coatings.

Mas. parts of trans beta-nitrostyrene in enamel is from 0.3-2.0. In other cases, the amount of wt. parts of trans beta-nitrostyrene is determined expertly, depending on the color of the object. The greatest fouling is observed on ships operating in a tropical marine climate, especially in parking lots, therefore, according to experience, enamel is added with intensive stirring at 26.6 kg - 0.5 kg. In a marine temperate cold climate operating a watercraft, 0.15 kg of modifier is added to the same amount of enamel.

Description of component interactions and non-obviousness data

The interactions of the components described in the description to achieve the goal of creating Enamel for a weather-resistant radiation-resistant deactivated antifouling fungal-resistant coating are not obvious both in the composition of the components and their combination of multifactorial interaction with each other.

Fulfillment of the requirements for novelty, state of the art and applicability The applicant is not aware of any technical solutions that are pleasant when creating enamels for weather-resistant radiation-resistant deactivating anti-fouling mushroom-resistant coatings from available literature and patent sources, therefore, they meet the criteria of the invention for novelty at the world level.

Based on these analogues and the closest analogue, the applicant created a new technical solution - Enamel for weather-resistant radiation-resistant deactivating antifouling mushroom-resistant coatings, eliminating their shortcomings and expanded its field of application by properties, using generally available ingredients of industrial production and implementation methods related to ensuring the inter-dock period, that meets the criteria of the invention, the prior art and industrial applicability. The coating based on the enamel offered consists of two or three layers. The total thickness is from 180 to 240 microns.

According to the combination of operational characteristics and parameters of the proposed technical solution - Enamel for weather-resistant radiation-resistant deactivated antifouling mushroom-resistant coating can be considered pioneer.

The applicant in the table gives the technical characteristics of the coating based on enamel for a weather-resistant radiation-resistant deactivated antifouling mushroom-resistant coating and the technical parameters of the coating based on the closest analogue.

Claims (11)

1. Enamel for weather-resistant radiation-resistant deactivated antifouling fungus-resistant coating, consisting of an amine type hardener and an enamel semi-finished product, which is a suspension of pigments, fillers and modifiers in a solution of epoxy film-forming, synthesized from aromatically conjugated hydroxyphenylene (hydroquinone), which differs from take a 50 wt.% solution of low molecular weight polyamide PO-300 in a mixture of o-xylene and ethyl cellosolve and as a modifier dimethyl sulfoxide and moat triphenyl phosphate in the following ratio of ingredients in parts by weight .: the specified solution of low molecular weight polyamide PO-300                                      100.0 triphenyl phosphate                                  5.0-10.0 dimethyl sulfoxide                                10.0-15.0 the semi-finished product contains: as the base resin (film-forming) - hydroquinone oligomer synthesized by oxidative homocondensation at a temperature of 240-250 ° C with a degree of polycondensation n = 0-2 and then epoxidized with a low molecular weight epoxy resin in a melt at a temperature of 120-165 ° C in the presence of 0.12-0.35 wt.% 2,4,6-trisdimethylaminomethylphenol to wt. the proportion of epoxy groups 10.1-11.0%; the solvent is a mixture of acetone, o-xylene and ethyl cellosolve, taken in a mass ratio of 1: 1: 1; traditional pigments are additionally taken as pigments and fillers to impart enamel color in the following ratio of ingredients, wt.%: a solution of 57-60 wt.% resin base in the specified solvent               56.0-60.0 pigments and fillers               40.0-44.0; enamel for application to the surface of the object before use is taken, parts by weight: prefabricated enamel                                           100.0 the specified solution hardener PO-300 modified                                     18.0-25.0 and additionally as a modifier - trans beta nitrostyrene                             0.3-2.0 2. The enamel according to claim 1, characterized in that the pigment contains red iron oxide pigment and / or titanium dioxide and / or lead molybdate crown and / or lemon lead and / or yellow lead crown, and / or carbon black and / or phthalocyanine blue and / or pigment chromium oxide. 3. The enamel according to claim 1, characterized in that the semi-finished enamel contains a filler - a mixture of micromica, microtalc, kaolin and thixotropic aerosil. 4. The enamel according to claim 1, characterized in that the coating based on it consists of two or three layers with a total thickness of 180 to 240 microns.