Corrosion-resistant TPU drag chain cable material capable of resisting 105 DEG C and preparation method of corrosion-resistant TPU drag chain cable material
By modifying the TPU material and introducing fluorine-containing segments and carbazole groups, a 105°C corrosion-resistant TPU drag chain cable material was prepared. This solved the problem of TPU drag chain cable material being prone to cracking in high temperature and water-oil immersion environments, and achieved improved stability and safety.
Patent Information
- Application Number
- CN202511011993.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-22
- Publication Date
- 2025-10-03
AI Technical Summary
Existing TPU drag chain cable materials are prone to cracking in high temperature and water and oil immersion environments, causing safety hazards. Existing improvement solutions cannot fundamentally solve the performance degradation problem.
By modifying the TPU material, introducing fluorine-containing segments and carbazole groups, antibacterial and mildew-proof agents, flame retardants, antioxidants and internal lubricants are prepared. A twin-screw extruder is used for melt extrusion and granulation, and injection molding is performed to form a 105°C resistant and corrosion-resistant TPU drag chain cable material.
It maintains stable performance in high temperature and water-oil immersion environments and is not prone to cracking, which improves safety and reliability and broadens the scope of application.
Smart Images
Figure SMS_1 
Figure SMS_2 
Figure SMS_3
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of TPU drag chain cable materials, and in particular to a 105° C. corrosion-resistant TPU drag chain cable material and a preparation method thereof. Background Art
[0002] The drag chain in an automatic car wash is a mechanical device used to protect cables. It wraps around the cables to prevent tangling, direct friction, and vibration. Currently, cable protection drag chains used in automatic car washes are primarily made of materials such as nylon (PA), polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), and thermoplastic polyurethane (TPU). Thermoplastic polyurethane (TPU) is widely used in drag chain manufacturing due to its high elasticity, excellent wear and fatigue resistance, and its combination of plastic rigidity and rubber flexibility. However, polyurethane also has drawbacks. When immersed in water or oil for extended periods, the material can easily degrade due to environmental factors, resulting in reduced tensile strength and microcracks on the surface. This can cause the drag chain cable material to crack, compromising cable safety and posing a potential safety hazard. Therefore, TPU needs to be modified to expand its application range.
[0003] In the prior art, existing improvements to the above-mentioned problem mainly focus on adding waterproofing agents and anti-aging agents. However, these can only delay the performance degradation of TPU drag chain cable materials to a certain extent, and cannot fundamentally solve the problem of cracking after long-term immersion, especially under high temperature conditions of 105°C. Therefore, the present invention provides a 105°C resistant and corrosion-resistant TPU drag chain cable material and a preparation method thereof. The prepared TPU drag chain cable material has excellent high temperature resistance, water resistance, oil resistance, and corrosion resistance. It can ensure that the drag chain maintains stable performance in environments with long-term high temperatures and immersion in water or oil, enhance safety and reliability, and at the same time extend the service life of the drag chain to a certain extent. Summary of the Invention
[0004] The present invention provides a 105°C corrosion-resistant TPU drag chain cable material and a preparation method thereof. By modifying TPU, the prepared TPU drag chain cable material can maintain stable performance in an environment of high temperature and immersion in water or oil, and will not easily crack, thereby improving the protection effect of the cable and enhancing safety and reliability.
[0005] A 105°C corrosion-resistant TPU drag chain cable material, comprising the following raw materials in parts by weight: 70-92 parts of modified TPU; 2-4 parts of antibacterial and antifungal agent; 9-12 parts flame retardant; 0.2-0.4 parts antioxidant; 0.3-0.5 parts of internal lubricant; 0.2-0.4 parts of compatibilizer; The modified TPU is prepared by activating TPU with hexamethylene diisocyanate under the catalysis of dibutyltin dilaurate, and reacting the activated TPU with dihydroxylated perfluoroacrylate carbazole to undergo urethanization reaction.
[0006] Furthermore, the preparation method of the dihydroxylated perfluoroacrylate carbazole is: Based on the esterification reaction mechanism, 1 molar equivalent of pentaerythritol reacts with 2 molar equivalents of 3-mercaptopropionic acid to obtain pentaerythritol di(3-mercaptopropionic acid) ester; Based on the thiol-ene click reaction mechanism, 1 molar equivalent of pentaerythritol di(3-mercaptopropionate) first reacts with 1 molar equivalent of perfluorohexylethyl methacrylate, and then reacts with 1 molar equivalent of N-vinylcarbazole to obtain dihydroxylated perfluoroacrylate carbazole.
[0007] Furthermore, the mass ratio of the dihydroxylated perfluoroacrylate carbazole to TPU is 1:5-15.
[0008] Furthermore, the antibacterial and mildew-proof agent is any one of polyhexamethylene biguanide hydrochloride, 2-thiazol-4-yl-1H-benzimidazole, or trichlorohydroxydiphenyl ether.
[0009] Furthermore, the flame retardant is melamine or ammonium phosphate.
[0010] Furthermore, the antioxidant is any one of antioxidant 1010, antioxidant 1098, or antioxidant 168.
[0011] Furthermore, the internal lubricant is any one of ethylene bisstearamide, stearic acid or polyethylene wax.
[0012] Furthermore, the compatibilizer is any one of 3-glycidoxypropyltrimethoxysilane, 3-aminopropyltriethoxysilane, and 3-aminopropyltrimethoxysilane.
[0013] A preparation method of a 105°C corrosion-resistant TPU drag chain cable material is as follows: The first step is to prepare modified TPU; In the second step, modified TPU, antibacterial and mildew-proof agent, flame retardant, antioxidant, internal lubricant and compatibilizer are used as raw materials, melt-extruded and granulated through a twin-screw extruder to obtain TPU composite masterbatch, which is then melt-plasticized by an injection molding machine, injected into the mold, cooled under pressure to shape, demolded and trimmed to obtain TPU drag chain cable material. Beneficial effects
[0014] The invention uses modified TPU, antibacterial and mildew-proof agent, flame retardant, antioxidant, internal lubricant and compatibilizer as raw materials to prepare TPU drag chain cable material. TPU is modified by preparing dihydroxylated perfluoroacrylate carbazole, and fluorinated segments and carbazole groups are introduced into the TPU main chain. On the one hand, the fluorinated segment has excellent hydrophobicity and oleophobicity. When introduced into the TPU main chain, the TPU drag chain cable material has excellent water resistance and oil resistance, which is suitable for application scenarios where the drag chains in automatic car washers are exposed to water or oily environments for a long time. On the other hand, the carbazole group is a high-temperature resistant hydrophobic group. When introduced into the TPU main chain, the TPU drag chain cable material has excellent high-temperature resistance, which can ensure that the TPU drag chain cable material remains stable in a high-temperature environment of 105°C for a long time and is not prone to cracking. The test results show that the TPU drag chain cable material maintains good mechanical properties and excellent corrosion resistance in high temperature and water or oil-immersed environments, which enhances the safety and reliability of the TPU drag chain cable material, improves the protection effect on the cables, and broadens the application range of the TPU drag chain cable material. DETAILED DESCRIPTION Experimental Example 1
[0015] The method for preparing dihydroxylated perfluoroacrylate carbazole is: Based on the esterification reaction mechanism, 1 molar equivalent of pentaerythritol reacts with 2 molar equivalents of 3-mercaptopropionic acid to obtain pentaerythritol di(3-mercaptopropionic acid) ester; Based on the thiol-ene click reaction mechanism, 1 molar equivalent of pentaerythritol di(3-mercaptopropionate) first reacts with 1 molar equivalent of perfluorohexylethyl methacrylate, and then reacts with 1 molar equivalent of N-vinylcarbazole to obtain dihydroxylated perfluoroacrylate carbazole.
[0016] The specific experimental steps for preparing dihydroxylated perfluoroacrylate carbazole are as follows: Step 1: Add 1.2 g of pentaerythritol to 20 mL of cyclohexane, stir and mix thoroughly, add 1.9 g of 3-mercaptopropionic acid and 0.1 g of p-toluenesulfonic acid, heat to 100 ° C in an oil bath, react for 8 hours, cool to room temperature, wash with deionized water until neutral, extract with cyclohexane, take the organic layer, absorb water with anhydrous magnesium sulfate, remove anhydrous magnesium sulfate by suction, and evaporate to obtain di(3-mercaptopropionic acid)pentaerythritol ester; Step 2: 3.1 g of pentaerythritol di(3-mercaptopropionic acid) ester was added to 30 mL of N, N-dimethylformamide, and nitrogen was introduced. 4.3 g of perfluorohexylethyl methacrylate and 0.2 g of azobisisobutyronitrile were added and stirred evenly. The mixture was heated to 70 ° C. and kept warm for 4 hours. Then, 1.9 g of N-vinyl carbazole was added and kept warm for 4 hours. After cooling to room temperature, deionized water was slowly added. After precipitation, the precipitate was collected by filtration, washed with deionized water, and the precipitate was dried at 60 ° C. under vacuum for 6 hours to obtain dihydroxylated perfluoroacrylate carbazole. Example 1:
[0017] A 105°C corrosion-resistant TPU drag chain cable material, comprising the following raw materials in parts by weight: 70 parts of modified TPU; 2 parts of polyhexamethylene biguanide hydrochloride; 11 parts melamine; 0.3 parts of antioxidant 1010; 0.4 parts of ethylene bisstearamide; 0.3 parts of 3-aminopropyltrimethoxysilane; A preparation method of a 105°C corrosion-resistant TPU drag chain cable material is as follows: The first step was to add TPU (brand 1185A10) to anhydrous toluene, introduce nitrogen protection, heat to 80 ° C, add 3.3 wt% of hexamethylene diisocyanate and 1 wt% of dibutyltin dilaurate, stir and react in a constant temperature water bath for 4 hours, then add 10 wt% of dihydroxy perfluoroacrylate carbazole (prepared in Experimental Example 1) for TPU, keep the temperature and react for 5 hours to obtain modified TPU; The second step is to place the modified TPU at 100°C and dry it for 4 hours. After cooling to room temperature, it is put into a high-speed mixer, and polyhexamethylene biguanide hydrochloride, melamine, antioxidant 1010, ethylene bisstearamide and 3-aminopropyltrimethoxysilane are added. The mixture is mixed for 10 minutes and then put into a twin-screw extruder with a screw diameter of 70 mm, and the temperatures of each zone are 165°C, 170°C, 180°C, 180°C, 175°C, 170°C, and 165°C. The screw speed is 25 r / min. After melt extrusion and granulation, TPU composite masterbatch is obtained. The TPU composite masterbatch is added to the hopper of the injection molding machine. After melt plasticization, the melt is injected into the mold cavity under mechanical pressure. After pressure holding and cooling to shape, the TPU drag chain cable material is obtained by demolding and trimming. Example 2:
[0018] A 105°C corrosion-resistant TPU drag chain cable material, comprising the following raw materials in parts by weight: 76 parts of modified TPU; 2 parts of polyhexamethylene biguanide hydrochloride; 11 parts melamine; 0.3 parts of antioxidant 1010; 0.4 parts of ethylene bisstearamide; 0.3 parts of 3-aminopropyltrimethoxysilane; A preparation method of a 105°C corrosion-resistant TPU drag chain cable material is as follows: Step 1: TPU (brand 85085A) was added to anhydrous toluene, nitrogen was introduced, the temperature was raised to 80°C, 3.3 wt% of hexamethylene diisocyanate and 1 wt% of dibutyltin dilaurate were added to the TPU, and the mixture was stirred in a constant temperature water bath for 4 h. Then, 10 wt% of dihydroxylated perfluoroacrylate carbazole (prepared in Experimental Example 1) was added to the TPU, and the mixture was kept warm for 5 h to obtain a modified TPU. The second step is to place the modified TPU at 100°C and dry it for 4 hours. After cooling to room temperature, it is put into a high-speed mixer, and polyhexamethylene biguanide hydrochloride, melamine, antioxidant 1010, ethylene bisstearamide and 3-aminopropyltrimethoxysilane are added. The mixture is mixed for 10 minutes and then put into a twin-screw extruder with a screw diameter of 70 mm, and the temperatures of each zone are 165°C, 170°C, 180°C, 180°C, 175°C, 170°C, and 165°C. The screw speed is 25 r / min. After melt extrusion and granulation, TPU composite masterbatch is obtained. The TPU composite masterbatch is added to the hopper of the injection molding machine. After melt plasticization, the melt is injected into the mold cavity under mechanical pressure. After pressure holding and cooling to shape, the TPU drag chain cable material is obtained by demolding and trimming. Example 3:
[0019] A 105°C corrosion-resistant TPU drag chain cable material, comprising the following raw materials in parts by weight: 80 parts of modified TPU; 2 parts of polyhexamethylene biguanide hydrochloride; 11 parts melamine; 0.3 parts of antioxidant 1010; 0.4 parts of ethylene bisstearamide; 0.3 parts of 3-aminopropyltrimethoxysilane; A preparation method of a 105°C corrosion-resistant TPU drag chain cable material is as follows: Step 1: TPU (brand 85085A) was added to anhydrous toluene, nitrogen was introduced, the temperature was raised to 80°C, 3.3 wt% of hexamethylene diisocyanate and 1 wt% of dibutyltin dilaurate were added to the TPU, and the mixture was stirred in a constant temperature water bath for 4 h. Then, 10 wt% of dihydroxylated perfluoroacrylate carbazole (prepared in Experimental Example 1) was added to the TPU, and the mixture was kept warm for 5 h to obtain a modified TPU. The second step is to place the modified TPU at 100°C and dry it for 4 hours. After cooling to room temperature, it is put into a high-speed mixer, and polyhexamethylene biguanide hydrochloride, melamine, antioxidant 1010, ethylene bisstearamide and 3-aminopropyltrimethoxysilane are added. The mixture is mixed for 10 minutes and then put into a twin-screw extruder with a screw diameter of 70 mm, and the temperatures of each zone are 165°C, 170°C, 180°C, 180°C, 175°C, 170°C, and 165°C. The screw speed is 25 r / min. After melt extrusion and granulation, TPU composite masterbatch is obtained. The TPU composite masterbatch is added to the hopper of the injection molding machine. After melt plasticization, the melt is injected into the mold cavity under mechanical pressure. After pressure holding and cooling to shape, the TPU drag chain cable material is obtained by demolding and trimming. Example 4:
[0020] A 105°C corrosion-resistant TPU drag chain cable material, comprising the following raw materials in parts by weight: 86 parts of modified TPU; 2 parts of polyhexamethylene biguanide hydrochloride; 11 parts melamine; 0.3 parts of antioxidant 1010; 0.4 parts of ethylene bisstearamide; 0.3 parts of 3-aminopropyltrimethoxysilane; A preparation method of a 105°C corrosion-resistant TPU drag chain cable material is as follows: Step 1: TPU (brand 85085A) was added to anhydrous toluene, nitrogen was introduced, the temperature was raised to 80°C, 3.3 wt% of hexamethylene diisocyanate and 1 wt% of dibutyltin dilaurate were added to the TPU, and the mixture was stirred in a constant temperature water bath for 4 h. Then, 10 wt% of dihydroxylated perfluoroacrylate carbazole (prepared in Experimental Example 1) was added to the TPU, and the mixture was kept warm for 5 h to obtain a modified TPU. The second step is to place the modified TPU at 100°C and dry it for 4 hours. After cooling to room temperature, it is put into a high-speed mixer, and polyhexamethylene biguanide hydrochloride, melamine, antioxidant 1010, ethylene bisstearamide and 3-aminopropyltrimethoxysilane are added. The mixture is mixed for 10 minutes and then put into a twin-screw extruder with a screw diameter of 70 mm, and the temperatures of each zone are 165°C, 170°C, 180°C, 180°C, 175°C, 170°C, and 165°C. The screw speed is 25 r / min. After melt extrusion and granulation, TPU composite masterbatch is obtained. The TPU composite masterbatch is added to the hopper of the injection molding machine. After melt plasticization, the melt is injected into the mold cavity under mechanical pressure. After pressure holding and cooling to shape, the TPU drag chain cable material is obtained by demolding and trimming. Example 5:
[0021] A 105°C corrosion-resistant TPU drag chain cable material, comprising the following raw materials in parts by weight: 90 parts of modified TPU; 2 parts of polyhexamethylene biguanide hydrochloride; 11 parts melamine; 0.3 parts of antioxidant 1010; 0.4 parts of ethylene bisstearamide; 0.3 parts of 3-aminopropyltrimethoxysilane; A preparation method of a 105°C corrosion-resistant TPU drag chain cable material is as follows: Step 1: TPU (brand 85085A) was added to anhydrous toluene, nitrogen was introduced, the temperature was raised to 80°C, 3.3 wt% of hexamethylene diisocyanate and 1 wt% of dibutyltin dilaurate were added to the TPU, and the mixture was stirred in a constant temperature water bath for 4 h. Then, 10 wt% of dihydroxylated perfluoroacrylate carbazole (prepared in Experimental Example 1) was added to the TPU, and the mixture was kept warm for 5 h to obtain a modified TPU. The second step is to place the modified TPU at 100°C and dry it for 4 hours. After cooling to room temperature, it is put into a high-speed mixer, and polyhexamethylene biguanide hydrochloride, melamine, antioxidant 1010, ethylene bisstearamide and 3-aminopropyltrimethoxysilane are added. The mixture is mixed for 10 minutes and then put into a twin-screw extruder with a screw diameter of 70 mm, and the temperatures of each zone are 165°C, 170°C, 180°C, 180°C, 175°C, 170°C, and 165°C. The screw speed is 25 r / min. After melt extrusion and granulation, TPU composite masterbatch is obtained. The TPU composite masterbatch is added to the hopper of the injection molding machine. After melt plasticization, the melt is injected into the mold cavity under mechanical pressure. After pressure holding and cooling to shape, the TPU drag chain cable material is obtained by demolding and trimming. Example 6:
[0022] A 105°C corrosion-resistant TPU drag chain cable material, comprising the following raw materials in parts by weight: 92 parts of modified TPU; 2 parts of polyhexamethylene biguanide hydrochloride; 11 parts melamine; 0.3 parts of antioxidant 1010; 0.4 parts of ethylene bisstearamide; 0.3 parts of 3-aminopropyltrimethoxysilane; A preparation method of a 105°C corrosion-resistant TPU drag chain cable material is as follows: Step 1: TPU (brand 85085A) was added to anhydrous toluene, nitrogen was introduced, the temperature was raised to 80°C, 3.3 wt% of hexamethylene diisocyanate and 1 wt% of dibutyltin dilaurate were added to the TPU, and the mixture was stirred in a constant temperature water bath for 4 h. Then, 10 wt% of dihydroxylated perfluoroacrylate carbazole (prepared in Experimental Example 1) was added to the TPU, and the mixture was kept warm for 5 h to obtain a modified TPU. The second step is to place the modified TPU at 100°C and dry it for 4 hours. After cooling to room temperature, it is put into a high-speed mixer, and polyhexamethylene biguanide hydrochloride, melamine, antioxidant 1010, ethylene bisstearamide and 3-aminopropyltrimethoxysilane are added. The mixture is mixed for 10 minutes and then put into a twin-screw extruder with a screw diameter of 70 mm, and the temperatures of each zone are 165°C, 170°C, 180°C, 180°C, 175°C, 170°C, and 165°C. The screw speed is 25 r / min. After melt extrusion and granulation, TPU composite masterbatch is obtained. The TPU composite masterbatch is added to the hopper of the injection molding machine. After melt plasticization, the melt is injected into the mold cavity under mechanical pressure. After pressure holding and cooling to shape, the TPU drag chain cable material is obtained by demolding and trimming. Comparative Example 1
[0023] A TPU drag chain cable material, comprising the following raw materials in parts by weight: 86 parts of TPU (brand 85085A); 2 parts of polyhexamethylene biguanide hydrochloride; 11 parts melamine; 0.3 parts of antioxidant 1010; 0.4 parts of ethylene bisstearamide; 0.3 parts of 3-aminopropyltrimethoxysilane; A preparation method of TPU drag chain cable material is as follows: The TPU was placed at 100°C for drying for 4 hours, cooled to room temperature, and then put into a high-speed mixer, and polyhexamethylene biguanide hydrochloride, melamine, antioxidant 1010, ethylene bisstearamide and 3-aminopropyltrimethoxysilane were added and mixed for 10 minutes. The mixture was then put into a twin-screw extruder with a screw diameter of 70 mm, and the temperatures of each zone were 165°C, 170°C, 180°C, 180°C, 175°C, 170°C, and 165°C. The screw speed was 25 r / min. After melt extrusion and granulation, TPU composite masterbatch was obtained. The TPU composite masterbatch was added to the hopper of the injection molding machine. After melt plasticization, the melt was injected into the mold cavity under mechanical pressure. After pressure holding and cooling to finalize, the TPU drag chain cable material was obtained by demolding and trimming. Performance Testing
[0024] The TPU composite masterbatches prepared in Examples 1 to 6 and Comparative Example 1 were made into samples that met the test conditions.
[0025] 1. Hardness test According to the method in ASTM D2240-15 (2021), the hardness of the specimens was tested. The test results are shown in Table 1: Table 1 Hardness test results
[0026] 2. Corrosion resistance test The samples were immersed in a 5% sulfuric acid solution and a 10% ammonia solution for 7 days, and the state of the samples was observed. The test results are shown in Table 2: Table 2 Corrosion resistance test results
[0027] 3. Mechanical properties test According to the method in standard ASTM D412-16 (2021), the tensile strength and elongation at break of the specimens were tested. The test results are shown in Table 3: Table 3 Test results of mechanical properties
[0028] 4. Water resistance and oil resistance test The samples were immersed in 82°C water for 7 days and 102°C 90# oil for 7 days, and then the tensile strength of the samples after boiling in water and oil were tested according to the method in standard ASTM D412-16 (2021). The test results are shown in Table 4: Table 4 Test results of water resistance and oil resistance
[0029] As shown in Table 4, the TPU composite masterbatch prepared in the embodiment of the present invention can maintain excellent mechanical properties for a long time in 87°C water and 102°C 90# oil, and has excellent water resistance and oil resistance.
[0030] 5. High temperature resistance test The samples were placed in a heat aging oven at 122°C for 7 days. The tensile strength of the aged samples was tested according to the method in standard ASTM D412-16 (2021). The test results are shown in Table 5: Table 5 High temperature resistance test results
[0031] It can be seen from Table 5 that the TPU composite masterbatch prepared in the embodiment of the present invention has excellent high temperature resistance.
Claims
1. A 105°C corrosion-resistant TPU drag chain cable material, characterized in that: The invention comprises the following raw materials in parts by weight: 70-92 parts of modified TPU; 2-4 parts of antibacterial and antifungal agent; 9-12 parts flame retardant; 0.2-0.4 parts antioxidant; 0.3-0.5 parts of internal lubricant; 0.2-0.4 parts of compatibilizer; The modified TPU is prepared by activating TPU with hexamethylene diisocyanate under the catalysis of dibutyltin dilaurate, and reacting the activated TPU with dihydroxylated perfluoroacrylate carbazole to undergo urethanization reaction.
2. The 105°C corrosion-resistant TPU drag chain cable material according to claim 1, characterized in that: The preparation method of the dihydroxylated perfluoroacrylate carbazole is as follows: Based on the esterification reaction mechanism, 1 molar equivalent of pentaerythritol reacts with 2 molar equivalents of 3-mercaptopropionic acid to obtain pentaerythritol di(3-mercaptopropionic acid) ester; Based on the thiol-ene click reaction mechanism, 1 molar equivalent of pentaerythritol di(3-mercaptopropionate) first reacts with 1 molar equivalent of perfluorohexylethyl methacrylate, and then reacts with 1 molar equivalent of N-vinylcarbazole to obtain dihydroxylated perfluoroacrylate carbazole.
3. The 105°C corrosion-resistant TPU drag chain cable material according to claim 1, characterized in that: The mass ratio of the dihydroxylated perfluoroacrylate carbazole to TPU is 1:5-15.
4. The 105°C corrosion-resistant TPU drag chain cable material according to claim 1, characterized in that: The antibacterial and mildew-proof agent is any one of polyhexamethylene biguanide hydrochloride, 2-thiazol-4-yl-1H-benzimidazole, and trichlorohydroxydiphenyl ether.
5. The 105°C corrosion-resistant TPU drag chain cable material according to claim 1, characterized in that: The flame retardant is melamine or ammonium phosphate.
6. The 105°C corrosion-resistant TPU drag chain cable material according to claim 1, characterized in that: The antioxidant is any one of antioxidant 1010, antioxidant 1098, or antioxidant 168.
7. The 105°C corrosion-resistant TPU drag chain cable material according to claim 1, characterized in that: The internal lubricant is any one of ethylene bisstearamide, stearic acid or polyethylene wax.
8. The 105°C corrosion-resistant TPU drag chain cable material according to claim 1, characterized in that: The compatibilizer is any one of 3-glycidyloxypropyltrimethoxysilane, 3-aminopropyltriethoxysilane and 3-aminopropyltrimethoxysilane.
9. The method for preparing the 105°C corrosion-resistant TPU drag chain cable material according to any one of claims 1 to 8, characterized in that: The preparation method is: The first step is to prepare modified TPU; In the second step, modified TPU, antibacterial and mildew-proof agent, flame retardant, antioxidant, internal lubricant and compatibilizer are used as raw materials, melt-extruded and granulated through a twin-screw extruder to obtain TPU composite masterbatch, which is then melt-plasticized by an injection molding machine, injected into the mold, cooled under pressure to shape, demolded and trimmed to obtain TPU drag chain cable material.