Antioxidant for buried pipe material and preparation method thereof

Abstract

The invention discloses an antioxidant for a buried pipe material and a preparation method thereof, relates to the technical field of antioxidant additives, and solves the problems that when a pipe is buried underground for use, the oxidation resistance of the pipe is reduced due to corrosion of saline-alkali substances in underground water and soil, and the service life of the pipe is prolonged. And corrosion, oxidation and rusting phenomena are caused when the pipe is buried underground for a long time. The invention discloses an antioxidant for a buried pipe material. The antioxidant comprises 5-10% of an anti-freezing agent, 5-10% of a surfactant, 5-10% of a heat stabilizer, 20-25% of silicon carbide, 25-30% of sodium silicate and 10-15% of a waterproof additive. The waterproof performance of the antioxidant is improved, corrosion of saline-alkali substances in soil is resisted, the oxidation rate and corrosion rate of the pipe under the ground are delayed, and it is guaranteed that the internal structure of the pipe cannot be damaged by low temperature.

Description

Technical Field

[0001] The invention relates to the technical field of antioxidant additives, in particular to an antioxidant for underground pipe materials and a preparation method thereof. Background Art

[0002] Pipeline is a device connected by pipes, pipe connectors and valves for transporting gas, liquid or fluid with solid particles. Pipeline is widely used, mainly in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering and various industrial devices.

[0003] The pipeline is a transportation channel made up of various pipes. Pipes can be divided into above-ground pipes and underground pipes according to their installation locations. Above-ground pipes are installed above the ground, and underground pipes are buried beneath the ground. The presence of saline-alkali substances in groundwater and soil will cause oxidation and corrosion to the pipes. Antioxidants need to be added to all pipes during preparation. Antioxidants are used to isolate the internal structure of the pipe from contact with the air and slow down the aging rate of the pipe.

[0004] When existing pipes are buried underground for use, they will be corroded by saline-alkali substances in groundwater and soil, which will cause the pipes' antioxidant properties to decrease, resulting in corrosion, oxidation and rust when buried underground for a long time. Therefore, it does not meet the existing needs. We have proposed an antioxidant for buried pipe materials and a method for making the same. Summary of the invention

[0005] The purpose of the present invention is to provide an antioxidant for underground pipe materials and a method for preparing the same, so as to solve the problems that the existing pipes proposed in the above-mentioned background technology, when buried underground for use, will be corroded by saline-alkali substances in groundwater and soil, resulting in a decrease in the anti-oxidation performance of the pipes, leading to corrosion, oxidation and rusting of the pipes due to long-term burial underground.

[0006] To achieve the above object, the present invention provides the following technical solution: an antioxidant for underground pipe material, the proportion of each component is:

[0007] Antifreeze 5-10%

[0008] Surfactant 5-10%

[0009]

[0010] Preferably, the surfactant is composed of acidic phosphate amine salt, fatty acid amide, and organic acid ester.

[0011] Preferably, the ratio of the acidic phosphate amine salt, fatty acid amide and organic acid ester is 3:1:2.

[0012] Preferably, the thermal stabilizer is composed of organic tin and phenylphosphine oxide.

[0013] Preferably, the composition ratio of the organotin and phenylphosphonic acid ester is 3:5.

[0014] Preferably, the waterproof additive comprises sodium stearate, diatomaceous earth and acrylic acid.

[0015] Preferably, the respective component ratios of the sodium stearate, diatomaceous earth and acrylic acid are 3:3:1.

[0016] A method for preparing an antioxidant for underground pipe materials comprises the following steps:

[0017] S1: First, the components of the antioxidant: antifreeze, surfactant, heat stabilizer, silicon carbide, sodium silicate, mica powder, and waterproof additive are weighed according to the processing ratio;

[0018] S2: crushing and grinding the weighed silicon carbide and sodium carbonate to make them into powdery substances;

[0019] S3: Then, mica powder, silicon carbide powder and sodium silicate powder are put into a mixing and stirring device in the existing order, and an appropriate amount of solvent is added to the mixing and stirring device;

[0020] S4: controlling the stirring speed of the high-speed mixer to 800-1000 rpm, stirring for 60-120 minutes using the high-speed mixer, and controlling the stirring temperature to 600-800 degrees Celsius;

[0021] S5: After the mica powder, silicon carbide powder and sodium silicate powder are fully mixed with the solvent, a heat stabilizer, an antifreeze agent, a surfactant and a waterproof additive are successively added to the mixed solution;

[0022] S6: When adding the heat stabilizer, antifreeze agent, surfactant and waterproof additive, the temperature of the mixing equipment is controlled between 150-180 degrees Celsius, and stirred for 30 minutes respectively;

[0023] S7: After the heat stabilizer, antifreeze agent, surfactant and waterproof additive are fully mixed with the mixed solution, the prepared finished product is cooled and shaped;

[0024] S8: The cooled and shaped product is crushed and ground, and the ground powder is packaged.

[0025] Compared with the prior art, the manufacturing method of the present invention has the following beneficial effects:

[0026] The antioxidant of the invention has good waterproof performance and is resistant to corrosion by saline-alkali substances in the soil, slows down the oxidation rate and corrosion rate of the pipe underground, and ensures that low temperature will not cause damage to the internal structure of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall process of the present invention. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] like Figure 1 As shown, an antioxidant for buried pipe material, in parts by weight, the proportions of the components are:

[0030]

[0031] As a preferred embodiment of the present invention, the components of the surfactant are acidic phosphate amine salt, fatty acid amide, and organic acid ester, and the ratio of acidic phosphate amine salt, fatty acid amide, and organic acid ester is 3:1:2, which improves the hydrophobic properties of the antioxidant and avoids the influence of water molecules on the antioxidant.

[0032] The components of the waterproof additive are sodium stearate, diatomaceous earth, and acrylic acid. According to claim 6, an antioxidant for buried pipe materials is characterized in that the respective component ratios of sodium stearate, diatomaceous earth, and acrylic acid are 3:3:1, which increases the waterproof performance of the antioxidant and prevents the saline-alkali substances in the soil from corroding the antioxidant.

[0033] The components of the heat stabilizer are organic tin and phenyl phosphonate oxide, and the composition ratio of the organic tin and phenyl phosphonate oxide is 3:5.

[0034] A method for preparing an antioxidant for underground pipe materials comprises the following steps:

[0035] S1: First, the components of the antioxidant: antifreeze, surfactant, heat stabilizer, silicon carbide, sodium silicate, mica powder, and waterproof additive are weighed according to the processing ratio;

[0036] S2: crushing and grinding the weighed silicon carbide and sodium carbonate to make them into powdery substances;

[0037] S3: Then, mica powder, silicon carbide powder and sodium silicate powder are put into a mixing and stirring device in the existing order, and an appropriate amount of solvent is added to the mixing and stirring device;

[0038] S4: controlling the stirring speed of the high-speed mixer to 800-1000 rpm, stirring for 60-120 minutes using the high-speed mixer, and controlling the stirring temperature to 600-800 degrees Celsius;

[0039] S5: After the mica powder, silicon carbide powder and sodium silicate powder are fully mixed with the solvent, a heat stabilizer, an antifreeze agent, a surfactant and a waterproof additive are successively added to the mixed solution;

[0040] S6: When adding the heat stabilizer, antifreeze agent, surfactant and waterproof additive, the temperature of the mixing equipment is controlled between 150-180 degrees Celsius, and stirred for 30 minutes respectively;

[0041] S7: After the heat stabilizer, antifreeze agent, surfactant and waterproof additive are fully mixed with the mixed solution, the prepared finished product is cooled and shaped;

[0042] S8: The cooled and shaped product is crushed and ground, and the ground powder is packaged.

[0043] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An antioxidant for underground pipe material, characterized in that: The ratio of each component is: Antifreeze 5-10% Surfactant 5-10% Heat stabilizer 5-10% Silicon carbide 20-25% Sodium silicate 25-30% Waterproof additive 10-15%.

2. The antioxidant for underground pipe material according to claim 1, characterized in that: The surfactant comprises acidic phosphate amine salt, fatty acid amide and organic acid ester.

3. The antioxidant for underground pipe material according to claim 2, characterized in that: The ratio of the acidic phosphate amine salt, fatty acid amide and organic acid ester is 3:1:

2.

4. The antioxidant for underground pipe material according to claim 1, characterized in that: The components of the heat stabilizer are organic tin and phenyl phosphine oxide ester.

5. The antioxidant for underground pipe material according to claim 4, characterized in that: The composition ratio of the organic tin and the phenylphosphonic acid ester is 3:

5.

6. The antioxidant for underground pipe material according to claim 1, characterized in that: The waterproof additive comprises sodium stearate, diatomaceous earth and acrylic acid.

7. The antioxidant for underground pipe material according to claim 6, characterized in that: The respective component ratios of the sodium stearate, diatomaceous earth and acrylic acid are 3:3:

1.

8. A method for preparing an antioxidant for underground pipe material, characterized in that: The following steps are involved: S1: First, the components of the antioxidant: antifreeze, surfactant, heat stabilizer, silicon carbide, sodium silicate, mica powder, and waterproof additive are weighed according to the processing ratio; S2: crushing and grinding the weighed silicon carbide and sodium carbonate to make them into powdery substances; S3: Then, mica powder, silicon carbide powder and sodium silicate powder are put into a mixing and stirring device in the existing order, and an appropriate amount of solvent is added to the mixing and stirring device; S4: controlling the stirring speed of the high-speed mixer to 800-1000 rpm, stirring for 60-120 minutes using the high-speed mixer, and controlling the stirring temperature to 600-800 degrees Celsius; S5: After the mica powder, silicon carbide powder and sodium silicate powder are fully mixed with the solvent, a heat stabilizer, an antifreeze agent, a surfactant and a waterproof additive are successively added to the mixed solution; S6: When adding the heat stabilizer, antifreeze agent, surfactant and waterproof additive, the temperature of the mixing equipment is controlled between 150-180 degrees Celsius, and stirred for 30 minutes respectively; S7: After the heat stabilizer, antifreeze agent, surfactant and waterproof additive are fully mixed with the mixed solution, the prepared finished product is cooled and shaped; S8: The cooled and shaped product is crushed and ground, and the ground powder is packaged.

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