Silicon-fluorine hybrid heavy anti-corrosion coating for inner wall of tank truck and preparation method of silicon-fluorine hybrid heavy anti-corrosion coating

Abstract

The invention discloses a silicon-fluorine hybrid heavy anti-corrosion coating for the inner wall of a tank truck and a preparation method of the silicon-fluorine hybrid heavy anti-corrosion coating, and relates to the technical field of heavy anti-corrosion coatings. The silicon-fluorine hybrid heavy anti-corrosion coating comprises the following raw materials in percentage by weight: 30-65% of organic silicon resin, 10-30% of inorganic silicon, 1-15% of phenolic resin, 1-12% of polyvinylidene fluoride butanone, 1-15% of silicon dioxide and 10-30% of aluminum dioxide. According to the silicon-fluorine hybrid heavy anti-corrosion coating for the inner wall of the tank car and the preparation method of the silicon-fluorine hybrid heavy anti-corrosion coating, the preparation method of coating construction is adopted; the coating has the characteristic of self-repairing function; the anti-corrosion coating for the inner wall of the tank car has the advantages of integrally improving corrosion resistance, distortion resistance and tensile capacity, being convenient and fast to maintain, low in cost and the like, being easy to construct, strong in distortion resistance, high in tensile resistance, maintainable, thin in thickness, light in weight, stronger in corrosion resistance and more durable, and is mainly applied to corrosion prevention of the inner wall of the tank car. The silicon-fluorine hybrid heavy anti-corrosion coating can be applied to equipment for producing and storing strong acid, strong alkali and other chemical products, and has a self-repairing function.

Description

Technical Field

[0001] The invention relates to the technical field of heavy-duty anti-corrosion coatings, and in particular to a silicon-fluorine hybrid heavy-duty anti-corrosion coating for the inner wall of a tank truck and a preparation method thereof. Background Art

[0002] Heavy-duty anti-corrosion coatings are more corrosion-resistant and durable than ordinary anti-corrosion coatings, and are suitable for special environments with harsh environmental conditions. They are mainly used in marine engineering: offshore facilities, coastal and bay steel structures and concrete structures, offshore oil platforms; modern transportation: bridges, boats, containers, trains and railway facilities; energy industry: water tanks, petroleum, refining equipment, petroleum storage equipment (oil pipelines, oil tanks), power transmission and transformation equipment, nuclear power, coal mines; industrial enterprises: pharmaceutical chemical equipment, food chemical equipment, inner and outer walls of corrosive medium containers, pipelines, storage tanks, mining and smelting in chemical, steel, petrochemical plants, cement plant equipment, floors with corrosive media, wall cement components; municipal facilities: natural gas pipelines, garbage disposal equipment, etc.

[0003] Tank trucks are mainly used for the transportation of hazardous chemicals and are classified as heavy-duty anti-corrosion objects. At present, the existing plastic lining technology on the market, although it meets the use requirements of the eight types of transport tank trucks in the country to a certain extent, still has defects such as poor anti-distortion performance, low tensile strength, inability to repair, difficult construction, high thickness and heavy weight. Therefore, the development of a new type of coating that solves the above problems has become an urgent problem to be solved in the industry. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a silicon-fluorine hybrid heavy-duty anti-corrosion coating for the inner wall of a tank truck and a preparation method thereof, which is low-cost, highly environmentally friendly, easy to construct and easy to repair.

[0005] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical scheme: a silicon-fluorine hybrid heavy anti-corrosion coating for the inner wall of a tank truck, wherein the raw materials include by weight percentage: 30-65% organic silicone resin, 10-30% inorganic silicon, 1-15% phenolic resin, 1-12% polyvinylidene fluoride butanone, 1-15% silicon dioxide and 10-30% aluminum dioxide.

[0006] Preferably, the raw materials include, by weight percentage: 40% organic silicon resin, 10% inorganic silicon, 10% phenolic resin, 10% polyvinylidene fluoride butyrate, 10% silicon dioxide and 20% aluminum dioxide.

[0007] Preferably, the raw materials include, by weight percentage: 45% organic silicon resin, 15% inorganic silicon, 10% phenolic resin, 5% polyvinylidene fluoride butyric acid ketone, 15% silicon dioxide and 10% aluminum dioxide.

[0008] Preferably, the raw materials include, by weight percentage: 55% organic silicon resin, 20% inorganic silicon, 5% phenolic resin, 3% polyvinylidene fluoride butyrate, 8% silicon dioxide and 9% aluminum dioxide.

[0009] Preferably, the raw materials include, by weight percentage: 61% organic silicon resin, 10% inorganic silicon, 4% phenolic resin, 6% polyvinylidene fluoride butyrate, 5% silicon dioxide and 14% aluminum dioxide.

[0010] The present invention also provides a method for preparing a silicon-fluorine hybrid heavy-duty anticorrosive coating for the inner wall of a tank truck, which specifically comprises the following steps: S1, first reacting the raw materials of organic silicon resin, inorganic silicon, phenolic resin and polyvinylidene fluoride butanone; S2, pour in the organic silicon resin in proportion at 40°C, heat it to 70°C after half an hour, pour in the inorganic silicon in proportion, heat it to 85°C after 10 minutes, pour the phenolic resin into the reactor, heat it to 120°C, add polyvinylidene fluoride, heat it to 450°C continuously for 3 hours, cool it to room temperature and release the synthesized hybrid liquid; S3, then add butanone, aluminum dioxide, and silicon dioxide, and then disperse at a high speed of 700 rpm to obtain a single-component silicon-fluorine hybrid coating.

[0011] Preferably, the specific use method of the silicon-fluorine hybrid heavy anti-corrosion coating for the inner wall of a tank truck prepared by the preparation method comprises the following steps: T1. Surface treatment: First, use sandblasting equipment to blast and remove rust on the surface to be coated, so that the surface to be coated reaches sa2.5 level; T2, first apply the first coat of primer to the surface to be coated by the coating equipment, and cure it naturally for 4 hours after coating, and then apply the second coat of primer by the coating equipment, and cure it naturally for 4 hours; T3. Apply the first coat of topcoat, cure naturally for 4 hours, then apply the second coat of topcoat and heat cure at 100℃ for 10 hours.

[0012] (III) Beneficial effects The present invention provides a silicon-fluorine hybrid heavy-duty anti-corrosion coating for the inner wall of a tank truck and a preparation method thereof. Compared with the prior art, it has the following beneficial effects: (1) The silicon-fluorine hybrid heavy-duty anti-corrosion coating for the inner wall of the tank truck and its preparation method adopt a preparation method of coating construction; the coating has the characteristics of self-repairing function; the corrosion resistance, anti-distortion performance and tensile capacity of the anti-corrosion coating on the inner wall of the tank truck are improved as a whole, and maintenance is convenient and fast, and the cost is low.

[0013] (2) The silicon-fluorine hybrid heavy anti-corrosion coating for the inner wall of the tank truck and its preparation method are low-cost, easy to apply, strong in anti-twisting force, high in anti-tensile force, maintainable, thin in thickness, light in weight, stronger in corrosion resistance and longer lasting. They are mainly used for the anti-corrosion of the inner wall of tank trucks, as well as equipment for the production and storage of strong acids, strong alkalis and other chemical products. The silicon-fluorine hybrid heavy anti-corrosion coating has a self-healing function. Under the action of 98% concentrated sulfuric acid, the coating degrades to the original transparent color of the wet film. After leaving the 98% concentrated sulfuric acid, it is cleaned with clean water and returns to the white state of the dry film after drying. It enters the self-healing state. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the initial application of the silicon-fluorine hybrid coating of the present invention; Figure 2 This is a schematic diagram of the curing process of the silicon-fluorine hybrid coating of the present invention; Figure 3 This is a comparison diagram of the self-repaired white coating of the silicon-fluorine hybrid coating of the present invention and the silicon-fluorine hybrid coating soaked in 98% acid; Figure 4 This is a schematic diagram showing a white color after self-repair by applying the silicon-fluorine hybrid coating of the present invention. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1-4 The embodiments of the present invention provide four technical solutions: a silicon-fluorine hybrid heavy anti-corrosion coating for the inner wall of a tank truck and a preparation method thereof, specifically including the following embodiments: Example 1

[0017] A silicon-fluorine hybrid heavy-duty anti-corrosion coating for the inner wall of a tank truck, wherein the raw materials thereof include, by weight percentage, 40% of organic silicon resin, 10% of inorganic silicon, 10% of phenolic resin, 10% of polyvinylidene fluoride butanone, 10% of silicon dioxide, and 20% of aluminum dioxide.

[0018] The embodiment of the present invention also provides a method for preparing a silicon-fluorine hybrid heavy anti-corrosion coating for the inner wall of a tank truck, which specifically comprises the following steps: S1, first reacting the raw materials of organic silicon resin, inorganic silicon, phenolic resin and polyvinylidene fluoride butanone; S2, pour in the organic silicon resin in proportion at 40°C, heat it to 70°C after half an hour, pour in the inorganic silicon in proportion, heat it to 85°C after 10 minutes, pour the phenolic resin into the reactor, heat it to 120°C, add polyvinylidene fluoride, heat it to 450°C continuously for 3 hours, cool it to room temperature and release the synthesized hybrid liquid; S3, then add butanone, aluminum dioxide, and silicon dioxide, and then disperse at a high speed of 700 rpm to obtain a single-component silicon-fluorine hybrid coating.

[0019] In the embodiment of the present invention, the specific use method of the silicon-fluorine hybrid heavy anti-corrosion coating for the inner wall of a tank truck prepared by the preparation method comprises the following steps: T1. Surface treatment: First, use sandblasting equipment to blast and remove rust on the surface to be coated, so that the surface to be coated reaches sa2.5 level; T2, first apply the first coat of primer to the surface to be coated by the coating equipment, and cure it naturally for 4 hours after coating, and then apply the second coat of primer by the coating equipment, and cure it naturally for 4 hours; T3. Apply the first coat of topcoat, cure naturally for 4 hours, then apply the second coat of topcoat and heat cure at 100℃ for 10 hours.

[0020] Example 2 A silicon-fluorine hybrid heavy-duty anti-corrosion coating for the inner wall of a tank truck, wherein the raw materials thereof include, by weight percentage, 45% of organic silicon resin, 15% of inorganic silicon, 10% of phenolic resin, 5% of polyvinylidene fluoride butanone, 15% of silicon dioxide, and 10% of aluminum dioxide.

[0021] The embodiment of the present invention also provides a method for preparing a silicon-fluorine hybrid heavy anti-corrosion coating for the inner wall of a tank truck, which specifically comprises the following steps: S1, first reacting the raw materials of organic silicon resin, inorganic silicon, phenolic resin and polyvinylidene fluoride butanone; S2, pour in the organic silicon resin in proportion at 40°C, heat it to 70°C after half an hour, pour in the inorganic silicon in proportion, heat it to 85°C after 10 minutes, pour the phenolic resin into the reactor, heat it to 120°C, add polyvinylidene fluoride, heat it to 450°C continuously for 3 hours, cool it to room temperature and release the synthesized hybrid liquid; S3, then add butanone, aluminum dioxide, and silicon dioxide, and then disperse at a high speed of 700 rpm to obtain a single-component silicon-fluorine hybrid coating.

[0022] In the embodiment of the present invention, the specific use method of the silicon-fluorine hybrid heavy anti-corrosion coating for the inner wall of a tank truck prepared by the preparation method comprises the following steps: T1. Surface treatment: First, use sandblasting equipment to blast and remove rust on the surface to be coated, so that the surface to be coated reaches sa2.5 level; T2, first apply the first coat of primer to the surface to be coated by the coating equipment, and cure it naturally for 4 hours after coating, and then apply the second coat of primer by the coating equipment, and cure it naturally for 4 hours; T3. Apply the first coat of topcoat, cure naturally for 4 hours, then apply the second coat of topcoat and heat cure at 100℃ for 10 hours.

[0023] Example 3 A silicon-fluorine hybrid heavy-duty anti-corrosion coating for the inner wall of a tank truck, wherein the raw materials thereof include, by weight percentage, 55% of organic silicon resin, 20% of inorganic silicon, 5% of phenolic resin, 3% of polyvinylidene fluoride butanone, 8% of silicon dioxide, and 9% of aluminum dioxide.

[0024] The embodiment of the present invention also provides a method for preparing a silicon-fluorine hybrid heavy anti-corrosion coating for the inner wall of a tank truck, which specifically comprises the following steps: S1, first reacting the raw materials of organic silicon resin, inorganic silicon, phenolic resin and polyvinylidene fluoride butanone; S2, pour in the organic silicon resin in proportion at 40°C, heat it to 70°C after half an hour, pour in the inorganic silicon in proportion, heat it to 85°C after 10 minutes, pour the phenolic resin into the reactor, heat it to 120°C, add polyvinylidene fluoride, heat it to 450°C continuously for 3 hours, cool it to room temperature and release the synthesized hybrid liquid; S3, then add butanone, aluminum dioxide, and silicon dioxide, and then disperse at a high speed of 700 rpm to obtain a single-component silicon-fluorine hybrid coating.

[0025] In the embodiment of the present invention, the specific use method of the silicon-fluorine hybrid heavy anti-corrosion coating for the inner wall of a tank truck prepared by the preparation method comprises the following steps: T1. Surface treatment: First, use sandblasting equipment to blast and remove rust on the surface to be coated, so that the surface to be coated reaches sa2.5 level; T2, first apply the first coat of primer to the surface to be coated by the coating equipment, and cure it naturally for 4 hours after coating, and then apply the second coat of primer by the coating equipment, and cure it naturally for 4 hours; T3. Apply the first coat of topcoat, cure naturally for 4 hours, then apply the second coat of topcoat and heat cure at 100℃ for 10 hours.

[0026] Example 4 A silicon-fluorine hybrid heavy-duty anti-corrosion coating for the inner wall of a tank truck, wherein the raw materials thereof include, by weight percentage, 61% of organic silicon resin, 10% of inorganic silicon, 4% of phenolic resin, 6% of polyvinylidene fluoride butanone, 5% of silicon dioxide, and 14% of aluminum dioxide.

[0027] The embodiment of the present invention also provides a method for preparing a silicon-fluorine hybrid heavy anti-corrosion coating for the inner wall of a tank truck, which specifically comprises the following steps: S1, first reacting the raw materials of organic silicon resin, inorganic silicon, phenolic resin and polyvinylidene fluoride butanone; S2, pour in the organic silicon resin in proportion at 40°C, heat it to 70°C after half an hour, pour in the inorganic silicon in proportion, heat it to 85°C after 10 minutes, pour the phenolic resin into the reactor, heat it to 120°C, add polyvinylidene fluoride, heat it to 450°C continuously for 3 hours, cool it to room temperature and release the synthesized hybrid liquid; S3, then add butanone, aluminum dioxide, and silicon dioxide, and then disperse at a high speed of 700 rpm to obtain a single-component silicon-fluorine hybrid coating.

[0028] In the embodiment of the present invention, the specific use method of the silicon-fluorine hybrid heavy anti-corrosion coating for the inner wall of a tank truck prepared by the preparation method comprises the following steps: T1. Surface treatment: First, use sandblasting equipment to blast and remove rust on the surface to be coated, so that the surface to be coated reaches sa2.5 level; T2, first apply the first coat of primer to the surface to be coated by the coating equipment, and cure it naturally for 4 hours after coating, and then apply the second coat of primer by the coating equipment, and cure it naturally for 4 hours; T3. Apply the first coat of topcoat, cure naturally for 4 hours, then apply the second coat of topcoat and heat cure at 100℃ for 10 hours.

[0029]

[0030] Use Cases: Case 1: Since the successful development of silicon-fluorine hybrid heavy-duty anti-corrosion coatings, our company has been cooperating with CIMC Vehicle Group (Jiangmen) Co., Ltd. and first used silicon-fluorine hybrid heavy-duty anti-corrosion coatings to paint the inner walls of two tank trucks used to transport water purifiers for Shenzhen Yihao Logistics Co., Ltd. They have been in use for two years: the coating is intact without peeling, peeling or damage.

[0031] Case 2: In cooperation with CIMC Vehicle Group (Jiangmen) Co., Ltd., we used silicon-fluorine hybrid heavy-duty anti-corrosion coatings to paint the inner wall of a tank truck for Zhejiang Jiuyuan Logistics Service Co., Ltd., which can cross-transport hydrobromic acid, water purifier, and cobalt-manganese-bromine three-way catalyst media. It has been used for one year so far without any adverse phenomena. Two-way transportation has been achieved, maximizing benefits.

[0032] Case 3: Thirdly, also in cooperation with CIMC Vehicle Group (Jiangmen) Co., Ltd., we used silicon-fluorine hybrid heavy-duty anti-corrosion coatings to implement corrosion protection for the inner wall of a 98% concentrated sulfuric acid tank truck for Chengdu Hangyucheng Trading Co., Ltd., ending the history of 98% acid tank trucks being able to only transport single goods, opening up a new waterway, reducing costs for transportation companies, increasing benefits, and receiving frequent praise from users.

[0033] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A silicon-fluorine hybrid heavy-duty anti-corrosion coating for the inner wall of a tank truck, characterized in that: The raw materials include, by weight percentage, 30-65% of organic silicon resin, 10-30% of inorganic silicon, 1-15% of phenolic resin, 1-12% of polyvinylidene fluoride butyric acid, 1-15% of silicon dioxide and 10-30% of aluminum dioxide.

2. The silicon-fluorine hybrid heavy anti-corrosion coating for the inner wall of a tank truck according to claim 1, characterized in that: The raw materials include, by weight percentage, 40% organic silicon resin, 10% inorganic silicon, 10% phenolic resin, 10% polyvinylidene fluoride butyrate, 10% silicon dioxide and 20% aluminum dioxide.

3. The silicon-fluorine hybrid heavy anti-corrosion coating for the inner wall of a tank truck according to claim 1, characterized in that: The raw materials include, by weight percentage, 45% organic silicon resin, 15% inorganic silicon, 10% phenolic resin, 5% polyvinylidene fluoride butyric acid ketone, 15% silicon dioxide and 10% aluminum dioxide.

4. The silicon-fluorine hybrid heavy-duty anti-corrosion coating for the inner wall of a tank truck according to claim 1, characterized in that: The raw materials include, by weight percentage, 55% organic silicon resin, 20% inorganic silicon, 5% phenolic resin, 3% polyvinylidene fluoride butyrate, 8% silicon dioxide and 9% aluminum dioxide.

5. The silicon-fluorine hybrid heavy-duty anti-corrosion coating for the inner wall of a tank truck according to claim 1, characterized in that: The raw materials include, by weight percentage, 61% organic silicon resin, 10% inorganic silicon, 4% phenolic resin, 6% polyvinylidene fluoride butyrate, 5% silicon dioxide and 14% aluminum dioxide.

6. A method for preparing the silicon-fluorine hybrid heavy-duty anticorrosion coating for the inner wall of a tank truck according to any one of claims 1 to 5, characterized in that: The specific steps include: S1, first reacting the raw materials of organic silicon resin, inorganic silicon, phenolic resin and polyvinylidene fluoride butanone; S2, pour in the organic silicon resin in proportion at 40°C, heat it to 70°C after half an hour, pour in the inorganic silicon in proportion, heat it to 85°C after 10 minutes, pour the phenolic resin into the reactor, heat it to 120°C, add polyvinylidene fluoride, heat it to 450°C continuously for 3 hours, cool it to room temperature and release the synthesized hybrid liquid; S3, then add butanone, aluminum dioxide, and silicon dioxide, and then disperse at a high speed of 700 rpm to obtain a single-component silicon-fluorine hybrid coating.

7. The method for preparing a silicon-fluorine hybrid heavy-duty anticorrosive coating for the inner wall of a tank truck according to claim 6, characterized in that: The specific use method of the silicon-fluorine hybrid heavy anti-corrosion coating for the inner wall of a tank truck prepared by the preparation method comprises the following steps: T1. Surface treatment: First, use sandblasting equipment to blast and remove rust on the surface to be coated, so that the surface to be coated reaches sa2.5 level; T2, first apply the first coat of primer to the surface to be coated by the coating equipment, and cure it naturally for 4 hours after coating, and then apply the second coat of primer by the coating equipment, and cure it naturally for 4 hours; T3. Apply the first coat of topcoat, cure naturally for 4 hours, then apply the second coat of topcoat and heat cure at 100℃ for 10 hours.

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