BG1351U1 - Thermoresistant anticorrosion coating - Google Patents

Abstract

The coating, according to the proposed model, shows exclusively good indicators of thermostability, and at the same time it is anticorrosion, so that it will find good application in the household for painting and coating of metal surfaces functioning at temperatures in the range from 200 to 500 degree C. The thermoresistant and anticorrosion coating contains, with regard to the model proposed, in mass percentage: aluminium dust from 6 to 40, pyrolene from 29 to 40, solvent from 40 to 60, titanium dioxide from 1 to 10, calcium carbonate from 1 to 10, organofile bentonite from o.5 to 5 and in a specific case contains additionally alkil/phenilpolysiloxan resin from 6 to 35. The coating, according to the proposed model, has a varnish surface, its structure is homogeneous and it has a durablesilvery color, as well as a long full-load time.

Description

Technical field

The utility model coating has extremely good thermal and corrosion resistance properties and will be used in everyday life for the application and painting of metal surfaces operating at temperatures from 200 to 500 ° C.

BACKGROUND OF THE INVENTION

It is known from BG 63345 for coating composition, in particular a putty designed to repair rust-damaged surfaces. The kit is water-based and polymer-based, at least one filler and further comprises a corrosion inhibitor. The fillers are zirconium dioxide, titanium dioxide, carbon black, bentonite, kaolin or a combination thereof.

It is known from BG 64797 for coating composition, in particular rusty steel paint, including synthetic resins, pigments, organic solvents, low molecular weight surfactants, and optionally containing fillers, siccatives, structural admixture and conversion rust agent.

The technical nature of the utility model

The heat-resistant, anti-corrosion coating according to the utility model contains in wt. %: aluminum powder from 6 to 40, pyrrole from 20 to 40, solvent from 40 to 60, titanium dioxide from 1 to 10, calcium carbonate from 1 to 10, organophilic bentonite from 0.5 to 5 and, optionally, further containing alkyl / phenylpolysiloxane resin from 6 to 35.

The solvent of the utility model is toluene or xylene, and the alkyl / phenylpolysiloxane resin used is dissolved in xylene in a 1: 1 ratio.

According to a utility model, with the addition of an alkyl / phenylpolysiloxane resin, the coating has an increased thermal resistance of up to 500 ° C.

The applied coating according to the utility model has a lacquered surface, has a homogeneous structure and is of a lasting silver color.

Another advantage of a heat-resistant, anti-corrosion coating is its increased durability during operation.

Examples of implementation of the utility model

Example 1.

A method of producing an anti-corrosion coating having a resistance to a temperature of 300 ° C, comprising the following sequence of technological operations:

1. In a stainless steel stirrer reactor, 150 kg of toluene is dosed and 120 kg of pyrrole is added to it. The stirrer was started and the homogenization continued for 3-3.5 hours until a homogeneous solution was obtained. The resulting pyrrole solution was packed in a metal barrel, sealed tightly and stored in a cool, closed place.

2. 301 toluene is dispensed into a 501 stainless steel stirrer reactor. 5 kg of organophilic bentonite, 8 kg of titanium dioxide and 6 kg of calcium carbonate are gradually added. Using a stirrer, the components were homogenized for 30 min. The resulting suspension is stored in a metal container in a cool, closed place.

3. In a reactor with a capacity of 1.3 t ³ , 250 kg of pyrrole solution is dosed, the stirrer is started and 80 kg of aluminum paste is added to it. The homogenization was continued for 30 min. To the resulting homogeneous mass is added 300 kg of xylene and 30 kg of the suspension obtained in step 2. The homogenization is continued for 1-1.5 h, after which the obtained product is analyzed and, when the desired parameters are reached, it is packed in pre-labeled glass or plastic materials. / made of polyethylene terephthalate / bottles, which are stacked in a corrugated cardboard box.

Example 2.

The sequence of technological operations and component composition is as in Example 1, but the solvent instead of toluene is xylene.

Example 3.

A method of producing an anti-corrosion coating with an increased thermal resistance up to 500 ° C and comprising the following sequence of technological operations:

1. In a stainless steel stirrer reactor, 120 kg of toluene is dosed and 100 kg of pyrrole is added to it. A stirrer is started 2

1351 Ul kata and homogenization was continued for 3-3.5 h to obtain a homogeneous solution. The resulting pyrrole solution is packed in a 200 l metal barrel, sealed tightly and stored in a cool, closed place.

2. 301 toluene is dispensed into a 501 stainless steel stirrer reactor. 5 kg of organophilic bentonite, 8 kg of titanium dioxide and 6 kg of calcium carbonate are added to the net. Using a stirrer, the components were homogenized for 30 min. The resulting suspension is stored in a metal container in a cool, closed place.

3. In a reactor with a capacity of 1.3 t ³ was dosed 200 kg of alkyl / fenilpolisiloksanova resin / pre-dissolved in xylene /, placed in the agitator and add 80 kg aluminum paste and 160 kg pirolenov solution. The homogenization was continued for 30 min. 300 kg of xylene and 30 kg of the suspension obtained in step 2 are added to the resulting homogeneous mass. The homogenization is continued for 1-1.5 hours, after which the product obtained is analyzed and, after reaching the desired parameters, packaged in pre-labeled glass or plastic layers. - 25 mass / made of polyethylene terephthalate / bottles, stacked in a corrugated box.

Example 4.

The sequence of technological operations and component composition is as in Example 1, but the solvent instead of toluene is xylene.

Claims (3)

⁵ Claims 1. Heat-resistant, anti-corrosion coating based on synthetic resins, pigments, organic solvents, fillers, desiccants, pre- 10 forming antifoams, characterized in that it contains in wt. %: aluminum powder from 6 to 40, pyrrole from 20 to 40, solvent from 40 to 60, titanium dioxide from 1 to 10, calcium carbonate from 1 to 10, organophilic bentonite 15 from 0.5 to 5 and optionally further containing alkyl / phenylpolysiloxane resin from 6 to 35. 2. The heat-resistant, anti-corrosion coating according to claim 1, characterized 20 with the solvent being toluene or xylene. The heat-resistant, anti-corrosion coating according to claim 1, wherein the alkyl / phenylpolysiloxane resin is dissolved in xylene in a 1: 1 ratio. Literature 1. BG 63345. 2. BG 64797. Publication of the Patent Office of the Republic of Bulgaria 1797 Sofia, 52-B Dr. GM Dimitrov Blvd. Expert: A. Koleva Cf. № 66017 Circulation: 40 CP