CN113897111A - Workshop primer and preparation method and preparation system thereof - Google Patents

Abstract

The invention relates to the field of coatings, and particularly relates to a workshop primer, a preparation method and a preparation system thereof, wherein the workshop primer comprises 87.5-94.5% of alcohol-soluble self-crosslinking phenolic resin, 5-10% of polyaniline powder and 0.5-2.5% of special additive. The self-crosslinking phenolic resin is selected as a film forming material, and in a paint film, the self-crosslinking phenolic resin can be matched with a two-component epoxy zinc-rich primer, an inorganic zinc-rich primer and a single-component primer of various resin systems; polyaniline powder is selected as an anti-corrosion functional material, provides negative ions in a paint film to protect a base material, and simultaneously has a synergistic effect with zinc powder in a matched zinc-rich primer, so that the protection of the steel base material is enhanced; the special additive is selected so as to enable the polyaniline powder to be more regularly arranged in a sheet shape, and the polyaniline powder is mutually overlapped as far as possible, so that the functions of the polyaniline powder that electrons flow unimpededly and negative ions are provided for the base material are fully reflected, the polyaniline powder is easy to attach to an iron base material, the long-term adhesive force is stable, and the corrosion resistance is strong in persistence.

Description

Workshop primer and preparation method and preparation system thereof

Technical Field

The invention relates to the field of coatings, in particular to a workshop primer and a preparation method and a preparation system thereof.

Background

The shop primer is a very important and necessary coating layer frequently used in a coating shop for large steel structures, bridges, ships and the like, and aims to protect a steel substrate for a short time and avoid the influence on the coating quality after the substrate is corroded seriously. The coating construction is carried out on an installation site, and basically, after the coating is removed, the normal substrate pretreatment such as sand blasting, shot blasting and the like is carried out, and the standard coating is carried out by adopting a matching scheme of bottom coating, middle coating and top coating.

At present, the shop primer on the market is an inorganic zinc-rich shop primer or an inorganic zinc silicate shop primer in the clear color, the principle of the shop primer is that alcohol-soluble polyvinyl butyral reacts with tetraethoxysilane hydrolysate to be crosslinked to be used as a film forming material, zinc powder is used for providing corrosion resistance, and the protection of a steel substrate as a cathode by using a material taking zinc as an anode is sacrificed. Aiming at the protection of the shop primer on the substrate and the waste of manpower and material resources for removing the shop primer, the whole coating cost is reduced, and the anticorrosion effect of the whole matched coating is improved.

Disclosure of Invention

The invention aims to provide a workshop primer and a preparation method and a preparation system thereof, and aims to reduce the whole coating cost and improve the anticorrosion effect of the whole matched coating.

In order to achieve the purpose, the invention provides a shop primer in a first aspect, which comprises 87.5-94.5% of alcohol-soluble self-crosslinking phenolic resin, 5-10% of polyaniline powder and 0.5-2.5% of special additive by weight percentage.

Wherein the particle size of the polyaniline powder is less than 30 microns, and the content of active ingredients is at least 99%.

Wherein the special additive is SST-3D wax powder or Tech-8025 additive.

In a second aspect, the invention further provides a preparation system of the shop primer, which comprises a supporting component, a stirring component and a cleaning component, wherein the supporting component comprises a base and a shell, and the shell is arranged on the base; the stirring assembly comprises a stirring motor, a stirring rod and stirring blades, the stirring rod is rotatably arranged in the shell, the output end of the stirring motor is fixedly connected with the stirring rod and is positioned outside the shell, and the stirring blades are fixed on the stirring rod;

the clearance subassembly includes control lever, throw-out collar, connecting rod, slider and clearance pole, the control lever with shell sliding connection, and be located one side of puddler, the throw-out collar sets up the control lever with between the puddler, the slider with the puddler sliding connection, and be located one side of throw-out collar, the connecting rod with the slider rotates to be connected, and with the throw-out collar rotates to be connected, the clearance pole with slider fixed connection, and be located one side of stirring vane.

The support assembly further comprises a non-slip mat, wherein the non-slip mat is fixedly connected with the base and is positioned at the bottom of the base.

The cleaning assembly further comprises a control cylinder, and the output end of the control cylinder is fixedly connected with the control rod.

In a third aspect, the present invention also provides a method for preparing a shop primer, including: taking raw materials according to parts by weight and placing the raw materials into a shell;

starting a stirring motor to drive a stirring rod and a stirring blade to rotate so as to mix the raw materials;

discharging the mixture to the next process after mixing;

the push control rod moves downwards to drive the push ring to press the connecting rod and the sliding rod downwards so that the cleaning rod is contacted with the shell wall;

and then the stirring motor is started to clean the shell wall.

According to the shop primer and the preparation method and the preparation system thereof, the long-term adhesion stability function of the coating is that a paint film does not need to be removed, and the long-acting anticorrosion foundation and guarantee are realized; polyaniline powder is selected as an anti-corrosion functional material, provides negative ions in a paint film to protect a base material, and simultaneously has a synergistic effect with zinc powder in a matched zinc-rich primer, so that the protection of the steel base material is enhanced; the special additive is selected to ensure that the polyaniline powder is more regularly arranged in a sheet shape, the polyaniline powder is mutually overlapped as far as possible, the functions of fully showing the electron unimpeded flow and providing negative ions for the base material are achieved, the polyaniline powder is easy to attach to the iron base material, the long-term adhesive force is stable, the corrosion resistance is strong in persistence, the polyaniline powder is not required to be removed in a construction site, and the matching performance is good.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a block diagram of a shop primer preparation system according to the present invention.

FIG. 2 is a schematic cross-sectional view of a shop primer manufacturing system of the present invention.

FIG. 3 is a flow chart of a method of preparing a shop primer according to the present invention.

1-supporting component, 2-stirring component, 3-cleaning component, 11-base, 12-shell, 13-non-slip mat, 21-stirring motor, 22-stirring rod, 23-stirring blade, 31-control rod, 32-push ring, 33-connecting rod, 34-slide block, 35-cleaning rod, 36-control cylinder, 37-bottom rod, 38-second spring, 39-push rod, 321-push ring body and 322-first spring.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In a first aspect, the present invention provides a shop primer:

the components by weight percentage comprise 87.5 to 94.5 percent of alcohol-soluble self-crosslinking phenolic resin, 5 to 10 percent of polyaniline powder and 0.5 to 2.5 percent of special additive.

In the embodiment, the long-term adhesion stability function of the coating is that a paint film does not need to be removed, and the basis and guarantee of long-acting corrosion prevention are realized; polyaniline powder is selected as an anti-corrosion functional material, provides negative ions in a paint film to protect a base material, and simultaneously has a synergistic effect with zinc powder in a matched zinc-rich primer, so that the protection of the steel base material is enhanced; the special additive is selected to ensure that the polyaniline powder is more regularly arranged in a sheet shape, the polyaniline powder is mutually overlapped as far as possible, the functions of fully showing the electron unimpeded flow and providing negative ions for the base material are achieved, the polyaniline powder is easy to attach to the iron base material, the long-term adhesive force is stable, the corrosion resistance is strong in persistence, the polyaniline powder is not required to be removed in a construction site, and the matching performance is good.

The particle size of the polyaniline powder is less than 30 microns, and the content of active ingredients is at least 99%. The special additive is SST-3D wax powder or Tech-8025 additive.

In the present embodiment, the alcohol-soluble self-crosslinking phenolic resin is an F01-36 alcohol-soluble self-crosslinking phenolic resin. The polyaniline powder is market polyaniline powder with the granularity of less than 30 microns and the effective component of not less than 99 percent, and the materials are adopted to ensure that a paint film has no change when the paint film resists 3 percent hydrochloric acid and 3 percent sodium hydroxide alkali solution for 240 hours, the paint film has no change when the salt spray resistance reaches 500 hours, and the paint film has no change when the paint film resists ethanol and detergent for 240 hours.

Two examples are provided to test the effectiveness of the primers, as shown in table 1.

	Example one	Example two
			Alcohol-soluble self-crosslinking phenolic resin	91.5KG	94.5KG
Polyaniline powder	7.5KG	5.0KG
			Special additive	1.5KG	0.5KG
Total up to	100.5KG	100KG

TABLE 1

A comparison of example 1 and example 2 with the market sample is then made as shown in table 2.

TABLE 2

To sum up: the novel shop primer achieves the expected purpose through the synergistic effect of the components and indexes, has obvious advantages compared with the traditional product, and finally has the characteristics of stable long-term adhesive force, strong durability of anti-corrosion performance, no need of removal in a construction site, good matching property and the like. The standard detection is consistent with the actual expression form, and the invention is proved to be reasonable and effective.

In a second aspect, referring to fig. 1 and fig. 2, the invention further provides a system for preparing a shop primer, including a supporting component 1, a stirring component 2 and a cleaning component 3, where the supporting component 1 includes a base 11 and a casing 12, and the casing 12 is disposed on the base 11; the stirring assembly 2 comprises a stirring motor 21, a stirring rod 22 and a stirring blade 23, the stirring rod 22 is rotatably arranged in the shell 12, the output end of the stirring motor 21 is fixedly connected with the stirring rod 22 and is positioned outside the shell 12, and the stirring blade 23 is fixed on the stirring rod 22;

clearance subassembly 3 includes control lever 31, push ring 32, connecting rod 33, slider 34 and clearance pole 35, control lever 31 with shell 12 sliding connection, and be located one side of puddler 22, push ring 32 sets up control lever 31 with between the puddler 22, slider 34 with puddler 22 sliding connection, and be located one side of push ring 32, connecting rod 33 with slider 34 rotates to be connected, and with push ring 32 rotates to be connected, clearance pole 35 with slider 34 fixed connection, and be located one side of stirring vane 23.

In the present embodiment, the support assembly 1 includes a base 11 and a housing 12, the housing 12 is disposed on the base 11, and the housing 12 is supported by the base 11. The stirring assembly 2 comprises a stirring motor 21, a stirring rod 22 and a stirring blade 23, the stirring rod 22 is rotatably arranged in the shell 12, the output end of the stirring motor 21 is fixedly connected with the stirring rod 22 and is positioned outside the shell 12, the stirring blade 23 is fixed on the stirring rod 22, and the stirring rod 22 is driven to rotate by the shell of the stirring motor 21, so that the stirring blade 23 can be driven to rotate; the cleaning assembly 3 comprises a control rod 31, a push ring 32, a connecting rod 33, a slider 34 and a cleaning rod 35, the control rod 31 is slidably connected with the housing 12 and is located on one side of the stirring rod 22, so that the control rod 31 can slide relative to the housing 12, the push ring 32 is arranged between the control rod 31 and the stirring rod 22, the control rod 31 can push the push ring 32 to slide, the slider 34 is slidably connected with the stirring rod 22 and is located on one side of the push ring 32, the connecting rod 33 is rotatably connected with the slider 34 and is rotatably connected with the push ring 32, the cleaning rod 35 is fixedly connected with the slider 34 and is located on one side of the stirring blade 23, the connecting rod 33 is driven to rotate by moving the push ring 32 and simultaneously pushes the slider 34 to slide, and the cleaning rod 35 can be pushed to contact with the inner wall of the housing 12, at this time, the inner wall of the shell 12 can be cleaned by starting the stirring motor 21 again, so that the shell 12 can be cleaned more conveniently after the primer is manufactured.

Further, the support assembly 1 further comprises a non-slip mat 13, and the non-slip mat 13 is fixedly connected with the base 11 and is located at the bottom of the base 11.

In the present embodiment, the non-slip mat 13 is used to increase the friction between the base 11 and the ground, so that the placement is more stable.

Further, the cleaning assembly 3 further comprises a control cylinder 36, and an output end of the control cylinder 36 is fixedly connected with the control rod 31; the push ring 32 comprises a push ring body 321 and a first spring 322, and the first spring 322 is arranged between the push ring body 321 and the stirring rod 22; the cleaning assembly 3 further comprises a bottom rod 37, a second spring 38 and a push rod 39, the bottom rod 37 is connected with the stirring rod 22 in a sliding mode and is located at the bottom of the stirring rod 22, the push rod 39 is fixedly connected with the cleaning rod 35 and is located on one side of the bottom rod 37, and the second spring 38 is arranged between the bottom rod 37 and the stirring rod 22.

In this embodiment, the control cylinder 36 can automatically control the control rod 31 to move, so that the use is more convenient, the first spring 322 is disposed between the push ring body 321 and the stirring rod 22, so that the push ring body 321 can be automatically driven to move upwards after the cleaning is completed, the bottom rod 37 is used for cleaning the bottom of the housing 12, when the cleaning rod 35 is pushed out, the push rod 39 can push the bottom rod 37 to slide relative to the stirring rod 22 and contact the bottom of the housing 12 for cleaning, and when the cleaning rod 35 retracts, the bottom rod 37 can retract under the action of the second spring 38.

In a third aspect, referring to fig. 3, the present invention further provides a method for preparing a shop primer, including:

s301, taking raw materials according to parts by weight and placing the raw materials into the shell 12;

the concentrated raw material is placed in the housing 12 by weight through the feed port in the housing 12 for processing.

S302, starting the stirring motor 21 to drive the stirring rod 22 and the stirring blade 23 to rotate so as to mix the raw materials;

s303, discharging the mixture to the next process after the mixture is finished;

s304, the control rod 31 is pushed to move downwards to drive the push ring 32 to press the connecting rod 33 and the sliding rod downwards so that the cleaning rod 35 is contacted with the wall of the shell 12;

s305, the stirring motor 21 is started again to clean the wall of the shell 12.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. A shop primer is characterized in that,

the components by weight percentage comprise 87.5 to 94.5 percent of alcohol-soluble self-crosslinking phenolic resin, 5 to 10 percent of polyaniline powder and 0.5 to 2.5 percent of special additive.

2. The shop primer, the method and the system according to claim 1, wherein,

the particle size of the polyaniline powder is less than 30 microns, and the content of active ingredients is at least 99%.

3. The shop primer, the manufacturing method thereof and the manufacturing system thereof according to claim 2, wherein,

the special additive is SST-3D wax powder or Tech-8025 additive.

4. A system for preparing a shop primer for use in preparing a shop primer according to any one of claims 1 to 3,

the stirring device comprises a supporting component, a stirring component and a cleaning component, wherein the supporting component comprises a base and a shell, and the shell is arranged on the base; the stirring assembly comprises a stirring motor, a stirring rod and stirring blades, the stirring rod is rotatably arranged in the shell, the output end of the stirring motor is fixedly connected with the stirring rod and is positioned outside the shell, and the stirring blades are fixed on the stirring rod;

the clearance subassembly includes control lever, throw-out collar, connecting rod, slider and clearance pole, the control lever with shell sliding connection, and be located one side of puddler, the throw-out collar sets up the control lever with between the puddler, the slider with the puddler sliding connection, and be located one side of throw-out collar, the connecting rod with the slider rotates to be connected, and with the throw-out collar rotates to be connected, the clearance pole with slider fixed connection, and be located one side of stirring vane.

5. The system for preparing shop primer according to claim 4,

the support assembly further comprises a non-slip mat, wherein the non-slip mat is fixedly connected with the base and is positioned at the bottom of the base.

6. The system for preparing shop primer according to claim 5,

the cleaning assembly further comprises a control cylinder, and the output end of the control cylinder is fixedly connected with the control rod.

7. A method for producing a shop primer using the system for producing a shop primer according to claim 4,

the method comprises the following steps: taking raw materials according to parts by weight and placing the raw materials into a shell;

starting a stirring motor to drive a stirring rod and a stirring blade to rotate so as to mix the raw materials;

discharging the mixture to the next process after mixing;

the push control rod moves downwards to drive the push ring to press the connecting rod and the sliding rod downwards so that the cleaning rod is contacted with the shell wall;

and then the stirring motor is started to clean the shell wall.

Images