A cable anticorrosive grease formula and its production process

Abstract

The present application relates to the technical field of cable anticorrosion, and particularly relates to a formula of cable anticorrosion grease and a production process thereof. The formula of the anticorrosion grease comprises synthetic base oil, three times intercalation modified montmorillonite, barium petroleum sulfonate, lanolin magnesium soap, diphenylamine and benzotriazole. The three times intercalation modified montmorillonite is prepared by three times intercalation modification of 2,3-epoxypropyl trimethyl ammonium chloride, bis-hexadecyl amine and chlorohexadecane in sequence. Through the multistage intercalation modification process of the montmorillonite, the present application realizes the gradual optimization of the interlayer structure and the significant improvement of the lipophilicity, so that the prepared cable anticorrosion grease has excellent shear stability, extremely low oil separation rate and excellent salt spray corrosion resistance, and can provide long-term stable protection for the cable in a complex environment, effectively solving the technical problems of poor stability, serious oil separation and non-durable anticorrosion effect of the traditional cable anticorrosion grease in the long-term use process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable corrosion protection, and particularly relates to a formula of cable corrosion protection grease and a production process thereof. BACKGROUND

[0002] As an important part of modern infrastructure, power and communication cables are required to operate in various complex environments for a long time. The corrosion protection of the cables is crucial for the safe operation of the equipment and the extension of the service life. As a key material for the corrosion protection of the metal parts of the cables, the cable corrosion protection grease is usually required to have excellent corrosion protection performance, appropriate rheological properties, good shear stability, and low oil separation rate.

[0003] The traditional cable corrosion protection grease is mainly composed of base oil, thickening agent, and various additives. The base oil is usually selected from mineral oil, synthetic oil, or vegetable oil; the thickening agent is usually selected from metal soap, organic bentonite, and polyurea; and the additives include antioxidants, corrosion inhibitors, and viscosity index improvers. Such traditional formulae face multiple challenges in harsh environments. On the one hand, long-term shear action leads to structural damage, resulting in a decrease in the consistency of the corrosion protection grease and a loss of the original protection function. On the other hand, the poor compatibility between the base oil and the thickening agent under high temperature conditions leads to serious oil separation, which not only pollutes the surrounding environment, but also greatly reduces the corrosion protection effect.

[0004] Montmorillonite is widely used in the thickening system of lubricating grease due to its special layered structure and ion exchange capacity. Natural montmorillonite has poor compatibility with organic base oil due to the hydrophilic nature of the inorganic cations between the layers, and direct use of the natural montmorillonite leads to uneven dispersion and poor stability. In order to solve this problem, researchers have developed organic modified montmorillonite technology. By replacing the inorganic cations between the layers with organic ammonium ions or other organic compounds, the surface properties of the montmorillonite are changed, and the compatibility of the montmorillonite with the organic matrix is improved.

[0005] The traditional organic modified montmorillonite usually adopts a single intercalation modification process, that is, the organic ammonium ions or other organic compounds are introduced into the interlayer of the montmorillonite in one step. Commonly used modifiers include alkyl ammonium salts and imidazoline compounds. Although the single intercalation modification can improve the lipophilicity of the montmorillonite to some extent, the modification effect is limited, especially in terms of resistance to mechanical shear stability and oil separation. This is mainly because the interlayer structure of the montmorillonite after single modification is not fully expanded, and a single type of modifier cannot meet the requirements of compatibility with the base oil and good structural stability at the same time. SUMMARY

[0006] Therefore, the present application aims to provide a formula of cable corrosion protection grease and a production process thereof, so as to solve the problems of poor shear stability, high oil separation rate, and short-term corrosion protection effect of the traditional cable corrosion protection grease, and to meet the long-term protection requirements of the cables in complex environments.

[0007] In order to achieve the above object, the present application provides a cable anticorrosion grease formula, which comprises the following components in parts by weight: synthetic base oil 70-90 parts, three times intercalation modified montmorillonite 8-16 parts, barium petroleum sulfonate 6-10 parts, lanolin magnesium soap 3-6 parts, diphenylamine 1.6-2.5 parts, and benzotriazole 0.6-1 part.

[0008] Preferably, the synthetic base oil is PAO-8 or PAO-10.

[0009] Further, the preparation steps of the three times intercalation modified montmorillonite are as follows:

[0010] S1: sodium-based montmorillonite is added to deionized water, heated to 82-88℃, stirred for 0.8-1.2h, then 2,3-epoxypropyltrimethylammonium chloride is added, and stirring is continued for 3-5h, then suction filtration, washing, and vacuum drying are performed to obtain the first intercalation modified montmorillonite;

[0011] S2: the first intercalation modified montmorillonite is added to N,N-dimethylformamide, ultrasonic treatment is performed for 15-25min, then dihexadecylamine is added, and stirring is performed at room temperature for 4-6h, then suction filtration, washing, and vacuum drying are performed to obtain the second intercalation modified montmorillonite;

[0012] S3: the second intercalation modified montmorillonite is added to N,N-dimethylformamide, ultrasonic treatment is performed for 15-25min, then chlorohexadecane is added, and stirring is performed at 78-82℃ for 5-7h, then suction filtration, washing, and vacuum drying are performed, and grinding and sieving are performed to obtain the three times intercalation modified montmorillonite;

[0013] Preferably, the CEC of the sodium-based montmorillonite in step S1 is 70-150mmol / 100g.

[0014] Preferably, the weight ratio of the sodium-based montmorillonite, deionized water, and 2,3-epoxypropyltrimethylammonium chloride in step S1 is 10-20:1000-2000:3.2-6.5.

[0015] Preferably, the weight ratio of the intercalation modified montmorillonite, N,N-dimethylformamide, and dihexadecylamine in step S2 is 10-20:350-650:4.5-9.5.

[0016] Preferably, the weight ratio of the second intercalation modified montmorillonite, N,N-dimethylformamide, and chlorohexadecane in step S3 is 10-20:350-650:0.6-1.8.

[0017] Preferably, the mesh size of the grinding and sieving in step S3 is 100-300 mesh.

[0018] Further, the application also provides a production process of cable corrosion-resistant grease, comprising the following steps: adding synthetic base oil in a reaction kettle, starting stirring, the stirring speed is 150-250 rpm, the temperature is raised to 60-70 DEG C and maintained for 10-20 min, adding three times intercalation modified montmorillonite, the temperature is raised to 80-90 DEG C, and the stirring speed is raised to 400-600 rpm, and the stirring is continued for 25-35 min, then petroleum barium sulfonate and lanolin magnesium soap are added in sequence, the stirring is continued for 40-50 min, then the temperature is lowered to 65-75 DEG C, diphenylamine and benzotriazole are added in sequence, the stirring is continued for 15-25 min, finally 8-12 g dioctyl phthalate is added, high-pressure homogenization is carried out, and finally the temperature is lowered to 38-42 DEG C, and aging is carried out for 10-15 h, to obtain the cable corrosion-resistant grease.

[0019] Preferably, the high-pressure homogenization is three times of homogenization treatment under 20-30 MPa, and each time is 5-10 min.

[0020] The application adopts multiple intercalation modified montmorillonite to prepare the cable corrosion-resistant grease, and compared with the traditional modification method, has the following significant technical advantages:

[0021] Firstly, through the multi-stage intercalation modification process, the interlayer spacing of montmorillonite is gradually expanded, and a stable layered structure is formed. This special interlayer structure design endows the corrosion-resistant grease with excellent shear stability, so that it can still maintain structural stability under long-term mechanical stress, effectively prolonging the service life of the cable corrosion-resistant grease.

[0022] Secondly, the specific functional groups introduced in the multiple intercalation modification process, especially the long-chain alkyl structure, significantly improve the lipophilic property of montmorillonite and enhance the molecular affinity between the base oil. This modification strategy effectively reduces the oil separation rate of the corrosion-resistant grease, solves the problem of oil separation in the long-term use of traditional corrosion-resistant grease, and ensures the use performance of the product in extreme environments.

[0023] Thirdly, the special interfacial structure formed by the multi-stage modified montmorillonite and the base oil creates a more stable colloidal dispersion system, and improves the rheological properties of the corrosion-resistant grease. The modified montmorillonite layers can be uniformly distributed in the base oil to form a network structure, providing excellent cone penetration control ability, so that the corrosion-resistant grease maintains appropriate consistency in a wide temperature range.

[0024] Most importantly, the multiple intercalation modified montmorillonite of the application significantly enhances the salt mist corrosion resistance of the corrosion-resistant grease, providing a long-acting protective barrier for metal cables. Through the careful design of the interlayer structure and surface chemical modification, a multiple protection mechanism is formed, effectively blocking the penetration of water, oxygen and corrosive ions to the metal surface, and maintaining excellent corrosion protection effect even in harsh salt mist environment.

[0025] To sum up, the cable anticorrosive grease prepared by the multiple intercalation modification method of the application realizes comprehensive improvement of shear stability, oil precipitation resistance and corrosion resistance through structure optimization and performance control, and provides a more reliable technical solution for cable protection in the fields of power and communication. DETAILED DESCRIPTION

[0026] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application is further described in detail below with reference to specific examples.

[0027] Example 1:

[0028] (1) 10 g of sodium-based montmorillonite (CEC of 90 mmol / 100 g) was added to 1000 g of deionized water, heated to 82℃, stirred for 0.8 h, then 3.2 g of 2,3-epoxypropyltrimethylammonium chloride was added, and stirring was continued for 3 h, then filtration was performed, and washing was performed with deionized water for 3 times, and vacuum drying was performed, to obtain a first intercalation modified montmorillonite;

[0029] (2) 10 g of the first intercalation modified montmorillonite was added to 350 g of N,N-dimethylformamide, and ultrasonic treatment was performed for 15 min, then 4.5 g of dihexadecylamine was added, and stirring was performed at room temperature for 4 h, then filtration was performed, and washing was performed with ethanol for 3 times, and vacuum drying was performed, to obtain a second intercalation modified montmorillonite;

[0030] (3) 10 g of the second intercalation modified montmorillonite was added to 350 g of N,N-dimethylformamide, and ultrasonic treatment was performed for 15 min, then 0.6 g of chlorohexadecane was added, and heating was performed to 78℃, and stirring was performed for 5 h, then filtration was performed, and washing was performed with ethanol for 3 times, and vacuum drying was performed, and grinding was performed through a 200 mesh sieve, to obtain a third intercalation modified montmorillonite;

[0031] (4) 70 g of synthetic base oil (PAO-8) was added to a reaction kettle, stirring was started, the stirring speed was 150 rpm, heating was performed to 60℃ and maintained for 10 min, 8-16 g of the third intercalation modified montmorillonite was added, heating was performed to 80℃, and the stirring speed was increased to 400 rpm, and stirring was continued for 25 min, then 6 g of barium petroleum sulfonate and 3 g of lanolin magnesium soap were sequentially added, and stirring was continued for 40 min, then the temperature was decreased to 65℃, 1.6 g of diphenylamine and 0.6 g of benzotriazole were sequentially added, and stirring was continued for 15 min, and finally 8 g of dioctyl phthalate was added, and homogenization treatment was performed three times at 20 MPa, each time for 5 min, and finally the temperature was decreased to 38℃, and aging was performed for 10 h, to obtain the cable anticorrosive grease.

[0032] Example 2:

[0033] (1) Add 15g of sodium montmorillonite (CEC is 90mmol / 100g) to 1500g of deionized water, heat to 85℃, stir for 1h, then add 5g of 2,3-epoxypropyltrimethylammonium chloride, continue stirring for 4h, filter, wash 3 times with deionized water, and vacuum dry to obtain one-intercalation modified montmorillonite.

[0034] (2) Add 15g of primary intercalation modified montmorillonite to 500g of N,N-dimethylformamide, sonicate for 20min, then add 7g of dihexadecanylamine, stir and react at room temperature for 5h, filter, wash with ethanol 3 times, and vacuum dry to obtain secondary intercalation modified montmorillonite.

[0035] (3) Add 15g of secondary intercalation modified montmorillonite to 500g of N,N-dimethylformamide, sonicate for 20min, then add 1.2g of chlorohexadecane, heat to 80℃, stir for 6h, filter, wash 3 times with ethanol, vacuum dry, grind through a 200-mesh sieve to obtain tertiary intercalation modified montmorillonite.

[0036] (4) Add 80g of synthetic base oil (PAO-8) to the reactor, start stirring at 200rpm, heat to 65℃ and maintain for 15min, add 12g of triple-intercalated modified montmorillonite, heat to 85℃, increase stirring speed to 500rpm and continue stirring for 30min, then add 8g of barium petroleum sulfonate and 4.5g of lanolin magnesium soap in sequence, continue stirring for 45min, then cool to 70℃, add 2.1g of diphenylamine and 0.8g of benzotriazole in sequence, continue stirring for 20min, and finally add 10g of dioctyl phthalate. Homogenize at 25MPa three times for 8min each time, and finally cool to 40℃ and keep aged for 12h to obtain cable anticorrosive grease.

[0037] Example 3:

[0038] (1) Add 20g of sodium montmorillonite (CEC of 90mmol / 100g) to 2000g of deionized water, heat to 88℃, stir for 1.2h, then add 6.5g of 2,3-epoxypropyltrimethylammonium chloride, continue stirring for 5h, filter, wash 3 times with deionized water, and vacuum dry to obtain one-time intercalation modified montmorillonite;

[0039] (2) Add 20g of primary intercalation modified montmorillonite to 650g of N,N-dimethylformamide, sonicate for 25min, then add 9.5g of dihexadecanylamine, stir and react at room temperature for 6h, filter, wash with ethanol 3 times, and vacuum dry to obtain secondary intercalation modified montmorillonite.

[0040] (3) 20 g of the three times intercalation modified montmorillonite was added into 650 g of N,N-dimethylformamide, and ultrasonic treatment was performed for 25 min, then 1.8 g of chlorohexadecane was added, the temperature was raised to 82 °C, and stirring was performed for 7 h, then filtration was performed, washing was performed with ethanol for 3 times, vacuum drying was performed, and grinding was performed through a 200 mesh sieve to obtain the three times intercalation modified montmorillonite;

[0041] (4) 90 g of synthetic base oil (PAO-8) was added into a reaction kettle, stirring was started, the stirring speed was 250 rpm, the temperature was raised to 70 °C and maintained for 20 min, 16 g of the three times intercalation modified montmorillonite was added, the temperature was raised to 90 °C, and the stirring speed was raised to 600 rpm, and stirring was continuously performed for 35 min, then 10 g of barium petroleum sulfonate and 6 g of lanolin magnesium soap were sequentially added, and stirring was continuously performed for 50 min, then the temperature was lowered to 75 °C, 2.5 g of diphenylamine and 1 g of benzotriazole were sequentially added, and stirring was continuously performed for 25 min, and finally 12 g of dioctyl phthalate was added, and homogenization treatment was performed for 3 times at 30 MPa, each time for 10 min, and finally the temperature was lowered to 42 °C, and aging was performed for 15 h to obtain the cable corrosion resistant grease.

[0042] Comparative Example 1:

[0043] The difference between Comparative Example 1 and Example 2 is that the three times intercalation modified montmorillonite in step (4) is replaced by the one time intercalation modified montmorillonite;

[0044] Comparative Example 2:

[0045] The difference between Comparative Example 2 and Example 2 is that the three times intercalation modified montmorillonite in step (4) is replaced by the two times intercalation modified montmorillonite;

[0046] Comparative Example 3:

[0047] The difference between Comparative Example 3 and Example 2 is that the amount of chlorohexadecane in step (3) is adjusted to 2.4 g;

[0048] Comparative Example 4:

[0049] The difference between Comparative Example 4 and Example 2 is that the dihexadecylamine in step (2) is replaced by di-n-propylamine;

[0050] Comparative Example 5:

[0051] The difference between Comparative Example 5 and Example 2 is that the three times intercalation modified montmorillonite in step (4) is replaced by the one time intercalation modified montmorillonite, and the 2,3-epoxypropyltrimethylammonium chloride in step (1) is replaced by hexadecyltrimethylammonium chloride.

[0052] Performance test:

[0053] Taper test: After the sample was placed in a constant temperature box at 25±0.5℃ for 4h, a standard grease cup was injected to the overflow state, the surface was scraped flat, the cone assembly was released to fall freely for 5.0±0.1s, the measuring mechanism was immediately locked, three measuring points were selected on the sample surface at an angle of 120°, the cone tip was more than 6mm away from the cup wall, and the arithmetic mean of three measured values was taken as the final taper value, accurate to 0.1mm. The test results are shown in Table 1.

[0054] Shear stability test: Under the condition of constant temperature box 25±0.5℃, the sample was continuously sheared for 2000 times, the shearing frequency was 50 times / min, after completing 500 shearing, the operation was stopped, the working machine was rotated 180° to eliminate the influence of gravity settlement, the cumulative pause time was not more than 15min, after shearing, the sample was immediately transferred to the standard grease cup and placed in a 25±0.5℃ environment for 4±0.1h, the cone penetration was measured, the change rate of cone penetration before and after shearing was calculated, the absolute value was taken, accurate to 0.1%, the results are shown in Table 1.

[0055] Oil separation rate test: 10.00±0.05g of sample was weighed and placed in a Φ50mm culture dish, covered with a quantitative filter paper, and then 100kPa pressure was applied, and then placed in a 100±1℃ oven for 24±0.5h. After taking out, the mass increment of filter paper was weighed, and the oil separation rate was calculated according to the formula: oil separation rate (%)=(filter paper weight gain / sample initial mass)×100, accurate to 0.1%, the results are shown in Table 1.

[0056] Salt spray corrosion test: according to GB / T 1771-2023, 30×50×1mm Q235 steel test piece was cleaned with acetone, sanded with sandpaper to Ra≤0.8μm, and then coated with 0.5±0.02mm thick anticorrosion grease layer. Place in a salt spray chamber, set 5±1% NaCl solution, 35±1℃ chamber temperature, pH 6.5-7.2, continuous spraying for 72 hours. The test piece was washed with deionized water, and the surface rust area ratio was visually inspected, rated from 0 level (no visible rust) to 4 level (>50% area rust), the results are shown in Table 1.

[0057] Table 1 Performance test results

[0058]

[0059] Data analysis:

[0060] As can be seen from the data of Examples 1-3 in Table 1, the cable corrosion resistant grease prepared by the multi-intercalation modification method has excellent performance, especially in terms of shear stability, oil separation rate and salt spray corrosion test. This may be due to the further increase in the interlayer spacing of the montmorillonite after three intercalation modifications, which makes the layers maintain high structural stability during shearing while improving the oil-wetting property, resulting in better molecular affinity and uniform dispersion between the base oil (PAO-8), thereby reducing the oil separation rate and improving the corrosion resistance.

[0061] As can be seen from the data of Example 2 and Comparative Example 1 in Table 1, the performance of Example 2 is significantly better than that of Comparative Example 1, which indicates that three intercalation modifications have a significant effect on performance improvement. This may be due to the key role of the three intercalation modification process in the structural integrity of the bentonite, and the step-by-step modification of the interlayer organic phase may form a more stable "sandwich" type layered structure, achieving gradient matching of the interlayer domain and the base oil phase, thereby reducing the interfacial tension between the two phases. The significant difference in shear stability may be due to the mechanical interlocking effect of long-chain alkyl groups, which forms reversible physical crosslinking points during dynamic shearing.

[0062] As can be seen from the data of Example 2 and Comparative Example 2 in Table 1, the performance of Example 2 is better than that of Comparative Example 2 using twice intercalation modified montmorillonite, which indicates that three intercalation modifications can further optimize the structure of the layers and the performance of the system. Although the modification of the layers by twice intercalation has obvious improvement, the dispersion of the layers in the grease system may still be insufficient due to the limited expansion of the interlayer spacing and the incomplete formation of the best distribution of the surface modification. After three intercalation modifications, the distance between the layers is again increased, and due to the charge effect and the entanglement between the molecular chains, a montmorillonite with high stability and large interlayer spacing is achieved, and the surface lipophilicity is further improved, making the rheological properties of the montmorillonite in the lubricating grease more stable, which is manifested as a significant improvement in shear stability and oil separation rate.

[0063] As can be seen from the data of Comparative Example 3 of Example 2 in Table 1, excessive grafting of chlorohexadecane can cause the performance of the cable corrosion resistant grease to decrease significantly, which may be due to the excessive grafting that can cause excessive crowding in the interlayer domain, destroying the planar orientation of the bentonite layers. And excessive grafting introduces a large number of positive charges, resulting in excessive interlayer charge repulsion, thereby reducing the structural stability.

[0064] As can be seen from the data of Example 2 and Comparative Example 4 in Table 1, the special structure of dihexadecylamine is crucial for the performance optimization of the intercalation modified montmorillonite, and the conformational freedom of the long chain alkyl group has an important influence on the structural stability of the interlayer domain. The molecular chain entanglement between the long chain alkyl group and the base oil can form a dynamic physical crosslinking network, and at the same time, the hydrophobic property of the long chain structure can optimize the wetting behavior of the oil-solid interface, reducing the phase separation trend. This interface optimization makes the system still maintain a uniform colloidal dispersion state at high temperature.

[0065] As can be seen from the data of Example 2 and Comparative Example 5 in Table 1, compared with the traditional hexadecyl trimethyl ammonium chloride intercalation modified montmorillonite, the tri-intercalation modified montmorillonite prepared by the present application is more excellent in the shear stability and corrosion resistance improvement of the cable corrosion-resistant grease, and significantly reduces the oil separation rate.

[0066] It should be understood by those skilled in the art that the above discussion of any of the embodiments is merely exemplary and is not intended to suggest that the scope of the present application is limited to these examples; the above embodiments or technical features among different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of the different aspects of the present application as described above. In order to be brief, they are not provided in details.

Claims

1. A formulation of a cable corrosion preventive grease, characterized in that, By weight, it comprises the following components: 70-90 parts synthetic base oil, 8-16 parts tertiary intercalation modified montmorillonite, 6-10 parts barium petroleum sulfonate, 3-6 parts lanolin magnesium soap, 1.6-2.5 parts diphenylamine, and 0.6-1 parts benzotriazole. The preparation steps of the tertiary intercalation modified montmorillonite are as follows: S1: Add sodium-based montmorillonite to deionized water, heat to 82-88℃, stir for 0.8-1.2h, then add 2,3-epoxypropyltrimethylammonium chloride, continue stirring for 3-5h, filter, wash, and vacuum dry to obtain primary intercalation modified montmorillonite. S2: Add the first-intercalated modified montmorillonite to N,N-dimethylformamide, sonicate for 15-25 min, then add dihexadecanylamine, stir and react at room temperature for 4-6 h, filter, wash, and vacuum dry to obtain the second-intercalated modified montmorillonite. S3: Add the secondary intercalated modified montmorillonite to N,N-dimethylformamide, sonicate for 15-25 min, then add hexadecane chloride, heat to 78-82℃, stir and react for 5-7 h, filter, wash, vacuum dry, grind and sieve to obtain the tertiary intercalated modified montmorillonite. In step S1, the weight ratio of sodium montmorillonite, deionized water, and 2,3-epoxypropyltrimethylammonium chloride is 10-20:1000-2000:3.2-6.

5. In step S2, the weight ratio of intercalated modified montmorillonite, N,N-dimethylformamide, and dihexadecanylamine is 10-20:350-650:4.5-9.

5. In step S3, the weight ratio of the secondary intercalation modified montmorillonite, N,N-dimethylformamide, and hexadecane is 10-20:350-650:0.6-1.

8.

2. The formulation of cable corrosion preventive grease as claimed in claim 1 wherein, The synthetic base oil is PAO-8 or PAO-10.

3. The formulation of cable corrosion preventive grease as claimed in claim 1 wherein, In step S1, the CEC of sodium montmorillonite is 70-150 mmol / 100 g.

4. The formulation of cable corrosion preventive grease as claimed in claim 1 wherein, In step S3, the mesh size of the grinding and sieving is 100-300 mesh.

5. A process for the production of a cable corrosion protection grease according to any one of claims 1 to 4, characterized in that, The process includes the following steps: adding synthetic base oil to a reactor, starting stirring at 150-250 rpm, heating to 60-70℃ and maintaining the temperature for 10-20 minutes, adding triple-intercalated modified montmorillonite, heating to 80-90℃, increasing the stirring speed to 400-600 rpm, and stirring continuously for 25-35 minutes, then adding barium petroleum sulfonate and magnesium lanolin soap in sequence, continuing stirring for 40-50 minutes, then cooling to 65-75℃, adding diphenylamine and benzotriazole in sequence, continuing stirring for 15-25 minutes, and finally adding 8-12 g of dioctyl phthalate, homogenizing under high pressure, and finally cooling to 38-42℃ and aging for 10-15 hours to obtain cable anti-corrosion grease.

6. The process for the production of a cable corrosion protection grease according to claim 5, characterized in that, The high-pressure homogenization process involves three homogenization treatments at 20-30 MPa, each lasting 5-10 minutes.

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