Composite chlorinated resin composition, anticorrosive paint and preparation method of anticorrosive paint

Abstract

The invention belongs to the technical field of polymer coatings, and particularly relates to a composite chlorinated resin composition, an anticorrosive coating and a preparation method of the anticorrosive coating. The coating disclosed by the invention is prepared from chlorinated polyolefins with different molecular weights and viscosities in a curing system, so that the coating has good adhesive force and flexibility under the condition that a plasticizer and an adhesive force accelerant are not added; the composition and the anticorrosive paint have excellent mechanical properties, corrosion resistance, environmental adaptability and long-acting stability, solve the problem of cost reduction of the traditional chlorinated rubber paint and the problem of recycling of waste polyolefin plastics, and are green and environment-friendly.

Description

Technical Field

[0001] The invention belongs to the technical field of polymer coatings, and in particular relates to a composite chlorinated resin composition, an anticorrosive coating and a preparation method thereof. Background Art

[0002] Anticorrosive coatings are widely used in the fields of ships, bridges, storage tanks, etc., among which chlorinated rubber coatings are one of the most widely used anticorrosive coatings due to their good chemical resistance and physical and mechanical properties. However, chlorinated rubber coatings have high requirements for the temperature of the construction environment and poor air permeability. Especially in a humid environment, bubbles are easily formed between the floor material and the coating, which can easily cause the coating to blister or fall off. At the same time, compared with epoxy resin and other coatings, chlorinated rubber coatings have poor flexibility and weak adhesion. They are prone to cracking or even peeling under large external forces, especially when there is a large deformation on the metal surface. It is difficult to maintain the stability of the coating. In addition, chlorinated rubber coatings have limited weather resistance and weak ability to resist ultraviolet rays. Long-term exposure to sunlight will cause the coating to age, fade, and even powderize. Based on the above problems, it is urgent to develop a high-performance anticorrosive coating that has good mechanical properties and is safe and environmentally friendly. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a composite chlorinated resin composition, an anti-corrosion coating and a preparation method thereof. The composition and coating prepared by the composite chlorinated resin of the present invention have excellent mechanical properties, anti-corrosion properties, environmental tolerance and long-term stability, and at the same time solve the cost reduction problem of traditional chlorinated rubber coatings and the recycling problem of waste polyolefin plastics, which is economical and environmentally friendly.

[0004] In order to achieve the above object, the technical solution of the present invention is as follows:

[0005] A composite chlorinated resin composition comprises the following components and their weight proportions:

[0006] The invention comprises the following components and their weight proportions: 25-36 parts of chlorinated polypropylene, 5-15 parts of chlorinated polyethylene, 5-15 parts of epoxy resin, 1-10 parts of curing agent, 5-15 parts of pigment and filler, 20-50 parts of solvent and 1-10 parts of auxiliary agent.

[0007] Furthermore, the composite chlorinated resin composition includes the following components and their weight proportions: 25-36 parts of chlorinated polypropylene, 5-15 parts of chlorinated polyethylene, 5-15 parts of epoxy resin, 1-10 parts of curing agent, 5-15 parts of pigments and fillers, 20-50 parts of solvents, 1-3 parts of dispersants, 0.5-3 parts of anti-settling agents, 0-3 parts of defoaming agents, 1-5 parts of leveling agents and 0.1-2 parts of pH regulators.

[0008] Furthermore, the composite chlorinated resin composition satisfies at least one of the following conditions:

[0009] (1) The chlorine content of the chlorinated polypropylene is 24-32%, the weight average molecular weight is 30000-500000, and the viscosity is 10-500mPa.s (25°C);

[0010] (2) The chlorine content of the chlorinated polyethylene is 30 to 35%;

[0011] (3) The epoxy equivalent of the epoxy resin is 110 to 1200 g / eq.

[0012] Furthermore, the chlorinated polypropylene comprises a mixture of two or more of the following chlorinated polypropylenes:

[0013] Chlorinated polypropylene I: chlorine content is 20-24%, weight average molecular weight is 50000-100000, viscosity is 10-50mPa.s (25℃);

[0014] Chlorinated polypropylene II: chlorine content is 24-26%, weight average molecular weight is 100000-150000, viscosity is 150-250mpa.s (25℃)

[0015] Chlorinated polypropylene III: chlorine content is 28-32%, weight average molecular weight is 300000-400000, viscosity is 250-350mPa.s (25°C).

[0016] Furthermore, the mass ratio of chlorinated polypropylene I, chlorinated polypropylene II and chlorinated polypropylene III in the chlorinated polypropylene mixture is 5-15:0-6:0.1-1.

[0017] Preferably, the mass ratio of chlorinated polypropylene I, chlorinated polypropylene II and chlorinated polypropylene III in the chlorinated polypropylene mixture is 8-12:5-6:0.2-0.8.

[0018] Preferably, the epoxy resin includes but is not limited to one or more of Phoenix E51, E44, Nan Ya NPEL-128, Jiangsu San 128, CYD-014, and CYD-011.

[0019] Furthermore, the curing agent is selected from one or more of aliphatic amines, aromatic amines, polythiol, polyamide, tertiary amine, and acid anhydride, including but not limited to polyetheramine D230, polyetheramine T403, polyamide 5115, WANAMINE @ IPDA, Huntsman 3986, Huntsman Aradur38-1, Qirun EH 3504, Qirun 3503 and other models.

[0020] Furthermore, the pigment filler is selected from one or more of titanium dioxide, calcium carbonate, barium sulfate, clay, kaolin, talc, carbon black, bentonite, quartz powder, red iron oxide, zinc phosphate, aluminum dihydrogen tripolyphosphate, mica powder, talc, calcined kaolin, and nano-ceramics.

[0021] Further, the solvent is selected from one or more of hydrocarbons, esters, ketones, alcohols, and alcohol ethers;

[0022] Optionally, the hydrocarbon is selected from one or more of benzene, toluene, xylene, No. 200 coal tar solvent, No. 200 solvent gasoline, and kerosene;

[0023] Optionally, the ester is selected from one or more of ethyl acetate, butyl acetate, and amyl acetate;

[0024] Optionally, the ketone is selected from one or more of acetone, butanone, cyclopentanone, and methyl isobutyl ketone;

[0025] Optionally, the alcohol is selected from one or more of methanol, ethanol and butanol;

[0026] Optionally, the alcohol ether is selected from one or more of ethylene glycol monoethyl ether, ethylene glycol monobutyl ether and diethylene glycol monoethyl ether.

[0027] Furthermore, the auxiliary agent includes one or more of a dispersant, an anti-settling agent, a defoaming agent, a leveling agent, and a pH regulator;

[0028] Optionally, the dispersant is selected from one or more of polyacrylic acid, polycarboxylic acid, polyacrylate, carboxylate, carboxylate or polycarboxylate, including but not limited to BYK-AT204, -205, HX-4015, HX-4010 and other models;

[0029] Optionally, the anti-settling agent is selected from one or more of organic bentonite, fumed silica, polyolefin wax, and polyamide wax, including but not limited to Desettle201P, Deqian MPA 20X, DeuRheo 229 and other models;

[0030] Optionally, the defoamer is selected from one or more of polysiloxane defoamers, silicone defoamers, and polyether defoamers, including but not limited to Wacker AK350, TEGO Airex 900, Defom5500, Defom6500, UNIQFOAM272S, UNIQFOAM 130S and other models;

[0031] Optionally, the pH adjuster is selected from one or more of AMP-95, ammonia water, dimethylethanolamine, triethanolamine, diethanolamine, monoethanolamine, N-methylethanolamine, dimethylethanolamine, Alpamina N41, butylethanolamine, N-aminopropylmonomethylethanolamine, butyldiethanolamine, sodium hydroxide and potassium hydroxide.

[0032] Optionally, the leveling agent is selected from one or more of polyurethane, silicone, acrylic, and fluorocarbon polymer;

[0033] Furthermore, the leveling agent is selected from one or more of polyacrylic acid, polymethylsiloxane, methylsiloxane, polydimethylsiloxane, silane, and siloxane, including but not limited to UNIQFLOW 430S, UNIQFLOW 360S, UNIQFLOW 361S, Defom837, Defom835, Defom432, Defom435 and other models.

[0034] In a second aspect, the present invention also provides a method for preparing a composite chlorinated resin composition, comprising the following steps:

[0035] S1. Mix and stir chlorinated polypropylene, chlorinated polyethylene, epoxy resin and part of the solvent, raise the temperature to 30-100°C and keep for a period of time, then add pigments, fillers and additives, mix and stir to form a uniform mixture, and grind to a fineness of ≤25μm;

[0036] S2, mixing the curing agent and the remaining solvent and stirring them evenly;

[0037] S3, mixing steps S1 and S2 to obtain a composite chlorinated resin composition.

[0038] In a third aspect, the present invention provides an anticorrosive coating comprising the composite chlorinated resin composition;

[0039] Furthermore, the anti-corrosion coating can be used in materials including metal, wood, concrete, stone, plastic and / or composite materials, but is not limited to the above substrates.

[0040] Compared with the prior art, the composite chlorinated resin composition and anticorrosive coating provided by the present invention have the following technical advantages:

[0041] (1) The present invention adopts mixed chlorinated polyolefin to replace traditional chlorinated rubber, which can be fully dissolved in various organic solvents to form a resin liquid, and pigments, fillers and additives are added to form a coating formula. The formula is optimized by adjusting the pigment-to-base ratio and selecting suitable additives. The balance and control of cost and performance are achieved by adjusting the ratio of chlorinated polyolefin and pigments and fillers, thereby obtaining a product formula that meets performance indicators. The composition and coating of the present invention no longer rely on plasticizers and adhesion promoters to make the paint film soft, because some chlorinated polyolefins can have a plasticizing effect and some chlorinated polyolefins can be used as adhesion promoters. Therefore, the mixed chlorinated polyolefin coating can simplify the design of the formula, and the product strength is better than that of chlorinated rubber coating, and the effect is significant.

[0042] (2) The present invention develops a mixed chlorinated polyolefin coating formula to replace chlorinated rubber, which solves the cost reduction problem of traditional chlorinated rubber coating and the recycling problem of waste polyolefin plastics, and is economical and environmentally friendly. DETAILED DESCRIPTION

[0043] The present invention is further illustrated below through the description of specific implementation methods, but this is not a limitation of the present invention. Those skilled in the art can make various modifications or improvements based on the basic idea of ​​the present invention, but as long as they do not deviate from the basic idea of ​​the present invention, they are all within the protection scope of the present invention.

[0044] In this embodiment, the chlorinated polypropylene is produced by Ruiyi De New Materials Co., Ltd., and the product model of chlorinated polypropylene I includes MC50-22 or MB100-22, the product model of chlorinated polypropylene II includes L200-25, and the product model of chlorinated polypropylene III includes MS300;

[0045] The chlorinated polyethylene was purchased from Shanyi Plastics, and the product model is CPE-135A;

[0046] The epoxy resin was purchased from Phoenix brand E51, E44, and Nanya NPEL-128.

[0047] Example 1

[0048] The raw material composition of the composite chlorinated resin composition of this embodiment is shown in Table 1:

[0049] Table 1:

[0050]

[0051] According to the formulation composition in Table 1 above, the preparation steps of a composite chlorinated resin composition in this embodiment are as follows:

[0052] S1. Mix chlorinated polypropylene I, chlorinated polypropylene III, chlorinated polyethylene, epoxy resin and 28 parts by mass of solvent, stir, heat to 85°C and keep for 2 hours, then add pigments, fillers, dispersants, anti-settling agents, defoamers, leveling agents, pH adjusters, mix and stir to form a uniform mixture, and grind to a fineness of ≤25 μm;

[0053] S2, mixing the curing agent and the remaining 10 parts by mass of the solvent and stirring evenly;

[0054] S3, mixing steps S1 and S2 to obtain a composite chlorinated resin composition.

[0055] Example 2

[0056] The raw material composition of the composite chlorinated resin composition of this embodiment is shown in Table 2:

[0057] Table 2:

[0058]

[0059] According to the formula composition in Table 2 above, the preparation steps of a composite chlorinated resin composition in this embodiment are as follows:

[0060] S1. Mix chlorinated polypropylene I, chlorinated polypropylene II, chlorinated polypropylene III, chlorinated polyethylene, epoxy resin and 25 parts by mass of solvent, heat to 85°C and keep for 2 hours, then add pigments, fillers, dispersants, anti-settling agents, leveling agents, pH regulators, mix and stir to form a uniform mixture, and grind to a fineness of ≤25 μm;

[0061] S2, mixing the curing agent and the remaining 10 parts by mass of the solvent and stirring evenly;

[0062] S3, mixing steps S1 and S2 to obtain a composite chlorinated resin composition.

[0063] Example 3

[0064] The raw material composition of the composite chlorinated resin composition of this embodiment is shown in Table 3:

[0065] Table 3:

[0066]

[0067] According to the formula composition in Table 3 above, the preparation steps of a composite chlorinated resin composition in this embodiment are as follows:

[0068] S1. Mix chlorinated polypropylene I, chlorinated polypropylene II, chlorinated polypropylene III, chlorinated polyethylene, epoxy resin and 30 parts by mass of solvent, heat to 85°C and keep for 2 hours, then add pigments, fillers, dispersants, anti-settling agents, defoamers, leveling agents, pH regulators, mix and stir into a uniform mixture, and grind to a fineness of ≤25 μm;

[0069] S2, mixing the curing agent and the remaining 10 parts by mass of the solvent and stirring evenly;

[0070] S3, mixing steps S1 and S2 to obtain a composite chlorinated resin composition.

[0071] Example 4

[0072] The raw material composition of the composite chlorinated resin composition of this embodiment is shown in Table 4:

[0073] Table 4:

[0074]

[0075] According to the formula composition in Table 4 above, the preparation steps of a composite chlorinated resin composition in this embodiment are as follows:

[0076] S1. Mix chlorinated polypropylene I, chlorinated polypropylene II, chlorinated polyethylene, epoxy resin and 25 parts by mass of solvent, heat to 85°C and keep for 2 hours, then add pigments, fillers, dispersants, anti-settling agents, leveling agents and pH regulators, mix and stir to form a uniform mixture, and grind to a fineness of ≤25 μm;

[0077] S2, mixing the curing agent and the remaining 10 parts by mass of the solvent and stirring evenly;

[0078] S3, mixing steps S1 and S2 to obtain a composite chlorinated resin composition.

[0079] Example 5

[0080] The raw material composition of the composite chlorinated resin composition of this embodiment is shown in Table 5:

[0081] Table 5:

[0082]

[0083] According to the formula composition in Table 5 above, the preparation steps of a composite chlorinated resin composition in this embodiment are as follows:

[0084] S1. Mix chlorinated polypropylene II, chlorinated polypropylene III, chlorinated polyethylene, epoxy resin and 25 parts by mass of solvent, stir, heat to 85°C and keep for 2 hours, then add pigments, fillers, dispersants, anti-settling agents, leveling agents, pH adjusters, mix and stir to form a uniform mixture, and grind to a fineness of ≤25μm;

[0085] S2, mixing the curing agent and the remaining 10 parts by mass of the solvent and stirring evenly;

[0086] S3, mixing steps S1 and S2 to obtain a composite chlorinated resin composition.

[0087] Example 6

[0088] The raw material composition of the composite chlorinated resin composition of this embodiment is shown in Table 6:

[0089] Table 6:

[0090]

[0091] According to the formula composition in Table 6 above, the preparation steps of a composite chlorinated resin composition in this embodiment are as follows:

[0092] S1. Mix chlorinated polypropylene I, chlorinated polypropylene II, chlorinated polypropylene III, chlorinated polyethylene, epoxy resin and 25 parts by mass of solvent, heat to 85°C and keep for 2 hours, then add pigments, fillers, dispersants, anti-settling agents, leveling agents, pH regulators, mix and stir to form a uniform mixture, and grind to a fineness of ≤25 μm;

[0093] S2, mixing the curing agent and the remaining 10 parts by mass of the solvent and stirring evenly;

[0094] S3, mixing steps S1 and S2 to obtain a composite chlorinated resin composition.

[0095] Example 7

[0096] The raw material composition of the composite chlorinated resin composition of this embodiment is shown in Table 7:

[0097] Table 7:

[0098]

[0099]

[0100] According to the formula composition of Table 7 above, the preparation steps of a composite chlorinated resin composition in this embodiment are as follows:

[0101] S1. Mix chlorinated polypropylene I, chlorinated polypropylene II, chlorinated polypropylene III, chlorinated polyethylene, epoxy resin and 25 parts by mass of solvent, heat to 85°C and keep for 2 hours, then add pigments, fillers, dispersants, anti-settling agents, leveling agents, pH regulators, mix and stir to form a uniform mixture, and grind to a fineness of ≤25 μm;

[0102] S2, mixing the curing agent and the remaining 10 parts by mass of the solvent and stirring evenly;

[0103] S3, mixing steps S1 and S2 to obtain a composite chlorinated resin composition.

[0104] Example 8

[0105] The raw material composition of the composite chlorinated resin composition of this embodiment is shown in Table 8:

[0106] Table 8:

[0107]

[0108]

[0109] According to the formula composition of Table 8 above, the preparation steps of a composite chlorinated resin composition in this embodiment are as follows:

[0110] S1. Mix chlorinated polypropylene I, chlorinated polypropylene II, chlorinated polypropylene III, chlorinated polyethylene, epoxy resin and 25 parts by mass of solvent, heat to 85°C and keep for 2 hours, then add pigments, fillers, dispersants, anti-settling agents and leveling agents, mix and stir into a uniform mixture, and grind to a fineness of ≤25 μm;

[0111] S2, mixing the curing agent and the remaining 10 parts by mass of the solvent and stirring evenly;

[0112] S3, mixing steps S1 and S2 to obtain a composite chlorinated resin composition.

[0113] Test Example 1: Performance Test of Composite Chlorinated Resin Composition

[0114] The properties of the composite chlorinated resin compositions prepared in Examples 1 to 8 were tested. The test methods are shown in Table 4, and the test results are shown in Table 5.

[0115] Table 4: Performance test methods of composite chlorinated resin composition

[0116]

[0117]

[0118] Table 5: Performance test results of composite chlorinated resin composition

[0119]

[0120]

[0121] It can be seen from the results in Table 5 that the composite chlorinated resin compositions prepared in Examples 1 to 3 have better performance than those in Examples 4 to 8, the main reason for which is due to the composition and content of chlorinated polyolefin and epoxy resin. The composite chlorinated resin composition of the present invention comprises chlorinated polyethylene and polypropylene, wherein chlorinated polypropylene comprises type I, type II and type III, and must comprise type I and type III to be compounded with chlorinated polyethylene to obtain better performance, while the compositions in Examples 4 to 5 lack type I or type III of chlorinated polypropylene, which ultimately leads to a significant decrease in the mechanical properties of the paint film and other acid and alkali resistance, water resistance, salt spray resistance and aging resistance. The content of chlorinated polypropylene in Example 6 is less than 25 parts, and the content of chlorinated polyethylene exceeds 20 parts, and the performance of the composite after the two are compounded is greatly reduced, which is also the main reason. It is because the degree of chlorination and molecular weight of the polyolefin affect the bonding force between the molecular chains, resulting in insufficient hardness of the paint film and easy environmental impact, resulting in blistering and shedding of the paint film, which ultimately affects the anti-corrosion and other protective effects of the substrate, and causes rust to varying degrees; Example 7 shows that the performance of the prepared composition is affected by the compounding ratio of chlorinated polypropylene type I, type II, and type III. When the compounding ratio of chlorinated polypropylene type I, type II, and type III exceeds the range of 5-15:0-6:0.1-1 or 8-12:5-6:0.2-0.8, the mechanical properties of the composition are reduced to a certain extent, thereby affecting the environmental tolerance of the paint film; the pH additive is not added to the composition prepared in Example 8, resulting in a certain decrease in the adhesion of the paint film, so the environmental tolerance of the paint film is also affected.

[0122] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A composite chlorinated resin composition, characterized in that: The invention comprises the following components and their weight proportions: 25-36 parts of chlorinated polypropylene, 5-15 parts of chlorinated polyethylene, 5-15 parts of epoxy resin, 1-10 parts of curing agent, 5-15 parts of pigment and filler, 20-50 parts of solvent and 1-10 parts of auxiliary agent.

2. The composite chlorinated resin composition according to claim 1, characterized in that: The composite chlorinated resin composition satisfies at least one of the following (1) to (3): (1) The chlorine content of the chlorinated polypropylene is 24-32%, the weight average molecular weight is 30000-500000, and the viscosity is 10-500mPa.s; (2) The chlorine content of the chlorinated polyethylene is 30 to 35%; (3) The epoxy equivalent of the epoxy resin is 110 to 1200 g / eq.

3. The composite chlorinated resin composition according to claim 2, characterized in that: The chlorinated polypropylene comprises a mixture of two or more of the following chlorinated polypropylenes: Chlorinated polypropylene I: chlorine content is 20-24%, weight average molecular weight is 50000-100000, viscosity is 10-50mPa.s; Chlorinated polypropylene II: chlorine content is 24-26%, weight average molecular weight is 100000-150000, viscosity is 150-250mPa.s; Chlorinated polypropylene III: chlorine content is 28-32%, weight average molecular weight is 300000-400000, and viscosity is 250-350mPa.s.

4. The composite chlorinated resin composition according to claim 3, characterized in that: The mass ratio of chlorinated polypropylene I, chlorinated polypropylene II and chlorinated polypropylene III in the chlorinated polypropylene mixture is 5-15:0-6:0.1-1.

5. The composite chlorinated resin composition according to claim 4, characterized in that: The mass ratio of chlorinated polypropylene I, chlorinated polypropylene II and chlorinated polypropylene III in the chlorinated polypropylene mixture is 8-12:5-6:0.2-0.

8.

6. The composite chlorinated resin composition according to claim 1, characterized in that: The curing agent is selected from one or more of aliphatic amines, aromatic amines, polythiol, polyamide, tertiary amines, and acid anhydrides; The pigment filler is selected from one or more of titanium dioxide, calcium carbonate, barium sulfate, clay, kaolin, talc, carbon black, bentonite, quartz powder, red iron oxide, zinc phosphate, aluminum dihydrogen tripolyphosphate, mica powder, talc, calcined kaolin, and nano-ceramics.

7. The composite chlorinated resin composition according to claim 1, characterized in that: The solvent is selected from one or more of hydrocarbons, esters, ketones, alcohols, and alcohol ethers; Optionally, the hydrocarbon is selected from one or more of benzene, toluene, xylene, No. 200 coal tar solvent, No. 200 solvent gasoline, and kerosene; Optionally, the ester is selected from one or more of ethyl acetate, butyl acetate, and amyl acetate; Optionally, the ketone is selected from one or more of acetone, butanone, cyclopentanone, and methyl isobutyl ketone; Optionally, the alcohol is selected from one or more of methanol, ethanol and butanol; Optionally, the alcohol ether is selected from one or more of ethylene glycol monoethyl ether, ethylene glycol monobutyl ether and diethylene glycol monoethyl ether.

8. The composite chlorinated resin composition according to claim 1, characterized in that: The auxiliary agent includes one or more of a dispersant, an anti-settling agent, a defoaming agent, a leveling agent, and a pH regulator; The dispersant is selected from one or more of polyacrylic acid, polycarboxylic acid, polyacrylate, carboxylate, carboxylate or polycarboxylate; The anti-settling agent is selected from one or more of organic bentonite, fumed silica, polyolefin wax, and polyamide wax; The defoamer is selected from one or more of polysiloxane defoamers, silicone defoamers, and polyether defoamers; The leveling agent is selected from one or more of polyurethane, silicone, acrylic, and fluorocarbon polymer; Optionally, the leveling agent is selected from one or more of polyacrylic acid, polymethylsiloxane, methylsiloxane, polydimethylsiloxane, silane, and siloxane; The pH regulator is selected from one or more of AMP-95, ammonia water, dimethylethanolamine, triethanolamine, diethanolamine, monoethanolamine, N-methylethanolamine, dimethylethanolamine, Alpamina N41, butylethanolamine, N-aminopropylmonomethylethanolamine, butyldiethanolamine, sodium hydroxide, and potassium hydroxide.

9. The composite chlorinated resin composition according to any one of claims 1 to 8, characterized in that: The invention comprises the following components and their weight proportions: 25-36 parts of chlorinated polypropylene, 5-15 parts of chlorinated polyethylene, 5-15 parts of epoxy resin, 1-10 parts of curing agent, 5-15 parts of pigment and filler, 20-50 parts of solvent, 1-3 parts of dispersant, 0.5-3 parts of anti-settling agent, 0-3 parts of defoaming agent, 1-5 parts of leveling agent and 0.1-2 parts of pH regulator.

10. An anticorrosive coating comprising the composite chlorinated resin composition according to any one of claims 1 to 9.

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