CN117777795A - Water-based steel antirust agent for spray protection and preparation method thereof - Google Patents

Abstract

A water-based steel anti-rust agent based on spray protection and a preparation method, which belongs to the technical field of anti-rust agents. In order to solve the potential threats to the environment and human health caused by existing anti-rust coatings, in addition to weather resistance, adhesion and anti-rust capabilities There are also certain deficiencies in other aspects; the formula of the present invention does not contain organic solvents and VOCs, so it can avoid pollution and risks to the environment and human health. The use of inorganic iron red has good anti-rust properties, and organic tin is added Salt anti-rust additives and phosphate anti-rust additives can effectively protect the steel surface from corrosion and oxidation. Select polycarboxylic acid dispersants and phosphate dispersants to improve the dispersion performance of pigments in water-based resins and ensure the quality of the coating. Stability, the use of natural colloidal thickeners and polymer thickeners can adjust the viscosity of the coating and provide appropriate fluidity and coating performance. The use of silicone oil leveling agents and epoxy leveling agents improves the surface quality of the coating. Smoothness and gloss.

Description

A kind of water-based steel rust inhibitor based on spray protection and preparation method

Technical field

The invention relates to the technical field of rust inhibitors, and in particular to a water-based steel rust inhibitor based on spray protection and a preparation method.

Background technique

As environmental protection efforts have gradually increased in recent years, water-based paints have become a research hotspot in the paint industry due to their excellent environmental protection effects and good performance, and have developed rapidly. Traditional steel anti-rust coatings usually use solvent-based coatings or paints, which contain organic solvents and volatile organic compounds (VOCs). These solvent-based coatings release harmful gases during the application process, posing a potential threat to the environment and human health. In addition, traditional steel anti-rust coatings also have some limitations, such as deficiencies in weather resistance, adhesion and anti-rust ability.

To solve the above problems. To this end, a water-based steel rust inhibitor based on spray protection and a preparation method are proposed.

Contents of the invention

The purpose of the present invention is to provide a water-based steel rust inhibitor based on spray protection and a preparation method, which solves the problem that the existing anti-rust coatings in the background technology pose a potential threat to the environment and human health, and also have certain deficiencies in weather resistance, adhesion and anti-rust ability.

In order to achieve the above object, the present invention provides the following technical solution: a water-based steel rust inhibitor based on spray protection, including the following raw material components in parts by weight: 45-55 parts of water-based resin, 35-45 parts of anti-rust pigment, 5-10 parts of additives, 0.8-1.5 parts of anti-rust additives;

Wherein the water-based resin includes acrylic emulsion, polyurethane emulsion and epoxy emulsion, the anti-rust pigment is inorganic iron red, the auxiliary agent includes a dispersant, thickener and leveling agent, the dispersant includes polycarboxylic acid type dispersant and phosphate dispersant, the thickener includes natural colloidal thickener and polymer thickener, the leveling agent includes silicone oil leveling agent and epoxy leveling agent, the anti-rust additive includes organic Stannate anti-rust additives and phosphate anti-rust additives.

Further, the water-based resin has a solid content of 50%, and the water-based resin is at least one of acrylic emulsion, polyurethane emulsion and epoxy emulsion.

Further, the dispersant is at least one of a polycarboxylic acid dispersant and a phosphate dispersant.

Further, the thickener is at least one of a natural colloidal thickener and a polymer thickener.

Further, the leveling agent is at least one of a silicone oil leveling agent and an epoxy leveling agent.

Further, the anti-rust additive is at least one of an organic stannate anti-rust additive and a phosphate anti-rust additive.

Another technical solution proposed by the present invention is to provide a method for preparing a water-based steel rust inhibitor for spray protection, comprising the following steps:

S1: Add water-based resin, anti-rust pigment and additives (dispersant, thickener, leveling agent) to the mixing device in sequence;

S2: Start the stirring device to stir the above materials evenly to form a premix;

S3: Add the anti-rust additive, stir evenly, and stir at high speed until the pigment is fully dispersed in the resin;

S4: Finally filter the paint to remove impurities and obtain the final water-based steel rust inhibitor.

Further, the mixing device mentioned in S1 includes an outer tank and an inner tank that is rotated and arranged inside the outer tank. The top and bottom of the inner tank are respectively provided with a raw material inlet and a raw material outlet, and both the raw material inlet and the raw material outlet are provided with valves. , the inner tank is provided with upper spiral plates and lower spiral plates up and down, and the upper spiral plates and the lower spiral plates are symmetrically distributed up and down.

Further, a rotating mechanism and a linkage mechanism are provided inside the outer tank, and a stirring shaft is provided inside the inner tank. The rotating mechanism is used to drive the inner tank to rotate inside the outer tank, and the linkage mechanism is used to drive the stirring shaft. Rotating inside the inner tank, a first rotation groove and a second rotation groove are provided inside the outer tank. The rotation mechanism includes a motor fixedly arranged inside the outer tank, and a spur gear is fixedly connected to the output end of the motor. The rotating mechanism also includes a gear ring fixedly connected to the outside of the inner tank, and the spur gear is meshed with the gear ring.

Further, the stirring shaft is provided with four groups. The stirring shaft includes a rotating shaft that passes through the inside and outside of the inner tank, and the rotating shaft is rotationally connected to the inner tank. One end of the rotating shaft located inside the inner tank is fixedly connected with a stirring fan blade, so One end of the rotating shaft located outside the inner tank is fixedly connected to a helical gear. The linkage mechanism includes an outer fixed ring fixedly connected inside the second rotating groove. An upper ring gear is fixedly connected to the inner side of the outer fixed ring through the fixed shaft. , a lower ring gear is fixedly connected to the inner lower part of the outer fixed ring, the diameter of the upper ring gear is smaller than the diameter of the lower ring gear, and the two sets of oppositely distributed helical gears are meshed with the upper ring gear. The other two sets of oppositely distributed helical gears are meshed with the lower ring gear.

Compared with the prior art, the beneficial effects of the present invention are:

1. The invention provides a water-based steel rust inhibitor based on spray protection and a preparation method. The formula does not contain organic solvents and VOCs, so it can avoid pollution and risks to the environment and human health. It uses inorganic iron red, etc. It has good anti-rust properties, and adds organic stannate anti-rust additives and phosphate anti-rust additives, which can effectively protect the steel surface from corrosion and oxidation. Select polycarboxylic acid dispersants and phosphate dispersants to improve the dispersion of pigments in water-based resins. Medium dispersion performance ensures the quality stability of the coating. It uses natural colloidal thickeners and polymer thickeners to adjust the viscosity of the coating and provide appropriate fluidity and coating performance. Silicone oil leveling agent and epoxy leveling agent The use of leveling agent improves the smoothness and gloss of the coating surface.

2. The present invention provides a water-based steel rust inhibitor for spray protection and a preparation method. At the same time, the mixing device provided by the present invention can generate a circulating liquid flow inside, and its stirring mode is diverse and the stirring effect is good.

Description of the drawings

Fig. 1 is a formula diagram of the present invention;

Figure 2 is a diagram of experimental results of the present invention;

Figure 3 is a schematic structural diagram of the mixing device of the present invention;

Figure 4 is an exploded view of the structure of the mixing device of the present invention;

Figure 5 is a cross-sectional view of the outer tank structure of the present invention;

FIG6 is a schematic diagram of the structure of the inner tank, the rotating mechanism, the linkage mechanism and the stirring shaft of the present invention;

FIG7 is an exploded view of the linkage mechanism and the stirring shaft structure of the present invention;

Figure 8 is a schematic structural diagram of the inner tank and rotating mechanism of the present invention;

Figure 9 is a schematic structural diagram of the upper spiral plate and the lower spiral plate of the present invention.

In the figure: 1. outer tank; 11. first rotating groove; 12. second rotating groove; 2. inner tank; 21. raw material inlet; 22. raw material outlet; 23. upper spiral plate; 24. lower spiral plate; 3. rotating mechanism; 31. motor; 32. spur gear; 33. gear ring; 4. linkage mechanism; 41. outer fixed ring; 42. upper gear ring; 421. fixed shaft; 43. lower gear ring; 5. stirring shaft; 51. rotating shaft; 52. stirring blade; 53. bevel gear.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

In order to solve the technical problems of low production efficiency of casting machines and easy holes in the workpiece, as shown in Figures 1 to 9, the following preferred technical solutions are provided:

A water-based steel anti-rust agent based on spray protection, including the following raw material components in parts by weight: 45-55 parts of water-based resin, 35-45 parts of anti-rust pigments, 5-10 parts of additives, and 0.8-0.8 parts of anti-rust additives 1.5 servings;

The water-based resin includes acrylic emulsion, polyurethane emulsion and epoxy emulsion, the anti-rust pigment is inorganic iron red, the additives include dispersants, thickeners and leveling agents, the dispersants include polycarboxylic acid dispersants and phosphate dispersants, the thickeners include natural colloid thickeners and polymer thickeners, the leveling agents include silicone oil leveling agents and epoxy leveling agents, and the anti-rust additives include organic stannate anti-rust additives and phosphate anti-rust additives.

The water-based resin has a solid content of 50%, and the water-based resin is at least one of acrylic emulsion, polyurethane emulsion and epoxy emulsion.

The dispersant is at least one of a polycarboxylic acid dispersant and a phosphate dispersant.

The thickener is at least one of a natural colloidal thickener and a polymer thickener.

The leveling agent is at least one of a silicone oil leveling agent and an epoxy leveling agent.

The anti-rust additive is at least one of an organic stannate anti-rust additive and a phosphate anti-rust additive.

The present invention will be further explained below in conjunction with the examples.

Example 1:

A water-based steel rust inhibitor based on spray protection, including the following raw material components in parts by weight: 40 parts of acrylic emulsion, 10 parts of polyurethane emulsion, 45 parts of inorganic iron red, 5 parts of polycarboxylic acid dispersant, and natural colloid 2 parts of thickener, 2 parts of silicone oil leveling agent, 0.5 parts of organic stannate anti-rust additive, 0.5 parts.

Embodiment 2:

A water-based steel rust inhibitor based on spray protection, including the following raw material components in parts by weight: 20 parts of acrylic emulsion, 30 parts of polyurethane emulsion, 38.5 parts of inorganic iron red, 3 parts of polycarboxylic acid dispersant, phosphate 2 parts of powder, 1 part of natural colloidal thickener, 2 parts of polymer thickener, 2 parts of silicone oil leveling agent, 1 part of organic stannate anti-rust additive, and 0.5 part of phosphate anti-rust additive.

Example 3:

A water-based steel rust inhibitor based on spray protection, including the following raw material components of 10 parts by weight: acrylic emulsion, 20 parts of polyurethane emulsion, 20 parts of epoxy emulsion, 40.7 parts of inorganic iron red, and polycarboxylic acid dispersant 2 parts, 1 part phosphate dispersant, 1.5 parts natural colloidal thickener, 1 part polymer thickener, 2 parts silicone oil leveling agent, 1 part epoxy leveling agent, 0.5 parts organic stannate anti-rust additive, phosphoric acid 0.3 parts of salt anti-rust additive.

The preparation methods of Examples 1-3 are the same; if there are no relevant components in the comparative examples, just do not add them accordingly. The component contents of Examples 1-3 are as shown in Figure 1, and the numerical values in Figure 1 represent the corresponding components. of mass parts.

Effect example:

This effect example verifies the performance of the water-based steel rust inhibitor prepared in Examples 1-3. The test results are shown in Figure 2.

In order to further better explain the above embodiments, the present invention also provides an embodiment: a preparation method of a water-based steel rust inhibitor for spray protection, which includes the following steps:

S1: Add water-based resin, anti-rust pigment and additives (dispersant, thickener, leveling agent) into a mixing device in sequence;

S2: Start the stirring device to stir the above materials evenly to form a premix;

S3: Add anti-rust additives, stir evenly, and then stir at high speed until the pigment is fully dispersed in the resin;

S4: Finally filter the paint to remove impurities and obtain the final water-based steel rust inhibitor.

The mixing device includes an outer tank 1 and an inner tank 2 that is rotated and arranged inside the outer tank 1. The top and bottom of the inner tank 2 are respectively provided with a raw material inlet 21 and a raw material outlet 22. The raw material inlet 21 and the raw material outlet 22 are both provided with valves. The upper spiral plate 23 and the lower spiral plate 24 are arranged up and down inside the inner tank 2. The upper spiral plate 23 and the lower spiral plate 24 are symmetrically distributed up and down. When the inner tank 2 rotates inside the outer tank 1, the middle of the inner tank 2 The raw materials can be turned upward or downward under the action of the upper spiral plate 23 and the lower spiral plate 24.

A rotating mechanism 3 and a linkage mechanism 4 are also provided inside the outer tank 1, and a stirring shaft 5 is provided inside the inner tank 2, wherein the rotating mechanism 3 is used to drive the inner tank 2 to rotate inside the outer tank 1, and the linkage mechanism 4 is used to drive the stirring shaft 5 to rotate inside the inner tank 2. A first rotating groove 11 and a second rotating groove 12 are provided inside the outer tank 1, and the rotating mechanism 3 includes a motor 31 fixedly provided inside the outer tank 1, and a spur gear 32 is fixedly connected to the output end of the motor 31. The rotating mechanism 3 also includes a gear ring 33 fixedly connected to the outside of the inner tank 2, and the spur gear 32 is meshed with the gear ring 33. The spur gear 32 is driven by the motor 31, and the spur gear 32 meshes with the gear ring 33, thereby driving the inner tank 2 to rotate inside the outer tank 1.

The stirring shaft 5 is provided with four groups. The stirring shaft 5 includes a rotating shaft 51 that penetrates the inside and outside of the inner tank 2, and the rotating shaft 51 is rotationally connected to the inner tank 2. One end of the rotating shaft 51 located inside the inner tank 2 is fixedly connected with a stirring fan blade 52. , one end of the rotating shaft 51 located outside the inner tank 2 is fixedly connected with a helical gear 53 , the linkage mechanism 4 includes an outer fixed ring 41 fixedly connected inside the second rotating groove 12 , and the upper inner side of the outer fixed ring 41 is fixedly connected by a fixed shaft 421 There is an upper ring gear 42, and a lower ring gear 43 is fixedly connected to the inner lower part of the outer fixed ring 41. The diameter of the upper ring gear 42 is smaller than the diameter of the lower ring gear 43. There are two sets of oppositely distributed helical gears 53 and the upper ring gear 42. The other two sets of oppositely distributed helical gears 53 are meshed and connected with the lower ring gear 43. The four sets of helical gears 53 rotate under the action of the upper ring gear 42 and the lower ring gear 43, and are not affected by each other. Finally, The rotating shaft 51 and the stirring fan blade 52 lower the raw materials in the middle of the inner tank 2 and turn them toward the inner edge of the inner tank 2. This forms a trajectory of the raw materials moving upward from the middle and downward from the middle, thereby improving the mixing effect. .

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations are mutually exclusive. any such actual relationship or sequence exists between them. Furthermore, the terms "comprises," "comprises," or any other variation thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment.

The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims (10)

1. A water-based steel rust inhibitor based on spray protection, characterized in that it includes the following raw material components in parts by weight: 45-55 parts of water-based resin, 35-45 parts of anti-rust pigments, and 5-10 parts of additives , anti-rust additive 0.8-1.5 parts; Wherein the water-based resin includes acrylic emulsion, polyurethane emulsion and epoxy emulsion, the anti-rust pigment is inorganic iron red, the auxiliary agent includes a dispersant, thickener and leveling agent, the dispersant includes polycarboxylic acid type dispersant and phosphate dispersant, the thickener includes natural colloidal thickener and polymer thickener, the leveling agent includes silicone oil leveling agent and epoxy leveling agent, the anti-rust additive includes organic Stannate anti-rust additives and phosphate anti-rust additives. 2. A kind of water-based steel rust inhibitor based on spray protection as claimed in claim 1, characterized in that: the water-based resin has a solid content of 50%, and the water-based resin is acrylic emulsion, polyurethane emulsion and epoxy emulsion. At least one. 3. A water-based steel rust inhibitor based on spraying protection according to claim 1, characterized in that the dispersant is at least one of a polycarboxylic acid dispersant and a phosphate dispersant. 4. A water-based steel rust inhibitor based on spray protection as claimed in claim 1, characterized in that the thickener is at least one of a natural colloidal thickener and a polymer thickener. 5. The water-based steel rust inhibitor for spray protection according to claim 1, characterized in that the leveling agent is at least one of a silicone oil leveling agent and an epoxy leveling agent. 6. A kind of water-based steel anti-rust agent based on spraying protection and a preparation method as claimed in claim 1, characterized in that: the anti-rust additive is an organic stannate anti-rust additive and a phosphate anti-rust additive. At least one. 7. A method for preparing a water-based steel rust inhibitor based on spraying protection according to any one of claims 1 to 6, characterized in that it includes the following steps: S1: Add water-based resin, anti-rust pigment and additives (dispersant, thickener, leveling agent) to the mixing device in sequence; S2: Start the stirring device to stir the above materials evenly to form a premix; S3: Add the anti-rust additive, stir evenly, and stir at high speed until the pigment is fully dispersed in the resin; S4: Finally filter the paint to remove impurities and obtain the final water-based steel rust inhibitor. 8. A kind of water-based steel rust inhibitor and preparation method based on spray protection as claimed in claim 7, characterized in that: the mixing device mentioned in S1 includes an outer tank (1) and a rotationally arranged outer tank (1). ) inside the inner tank (2), wherein the top and bottom of the inner tank (2) are respectively provided with a raw material inlet (21) and a raw material outlet (22), and both the raw material inlet (21) and the raw material outlet (22) are provided with valves , The inner tank (2) is provided with an upper spiral plate (23) and a lower spiral plate (24) up and down, and the upper spiral plate (23) and the lower spiral plate (24) are symmetrically distributed up and down. 9. A water-based steel rust inhibitor for spray protection and a preparation method as described in claim 8, characterized in that: a rotating mechanism (3) and a linkage mechanism (4) are also provided inside the outer tank (1), and a stirring shaft (5) is provided inside the inner tank (2), wherein the rotating mechanism (3) is used to drive the inner tank (2) to rotate inside the outer tank (1), and the linkage mechanism (4) is used to drive the stirring shaft (5) to rotate inside the inner tank (2), and a first rotating groove (11) and a second rotating groove (12) are provided inside the outer tank (1), and the rotating mechanism (3) includes a motor (31) fixedly provided inside the outer tank (1), and a spur gear (32) is fixedly connected to the output end of the motor (31), and the rotating mechanism (3) also includes a gear ring (33) fixedly connected to the outside of the inner tank (2), and the spur gear (32) is meshingly connected with the gear ring (33). 10. A kind of water-based steel rust inhibitor based on spraying protection and preparation method as claimed in claim 9, characterized in that: the stirring shaft (5) is provided with four groups, and the stirring shaft (5) includes a penetrating inner tank. (2) The internal and external rotating shafts (51) are rotatably connected to the inner tank (2). One end of the rotating shaft (51) located inside the inner tank (2) is fixedly connected to a stirring fan blade (52). ), one end of the rotation shaft (51) located outside the inner tank (2) is fixedly connected to a helical gear (53), and the linkage mechanism (4) includes an outer fixed ring fixedly connected inside the second rotation groove (12) (41), the upper inner side of the outer fixed ring (41) is fixedly connected to the upper ring gear (42) through the fixed shaft (421), and the inner lower side of the outer fixed ring (41) is fixedly connected to the lower ring gear (43). ), the diameter of the upper ring gear (42) is smaller than the diameter of the lower ring gear (43), the two sets of oppositely distributed helical gears (53) are meshed with the upper ring gear (42), and the other two A set of oppositely distributed helical gears (53) are meshed and connected with the lower ring gear (43).