A corrosion-resistant chest drainage tube and preparation method thereof

Abstract

The present invention belongs to the field of preparation of chest drainage tubes, and particularly relates to a corrosion-resistant chest drainage tube and a preparation method thereof. The modified polymer fiber is used in conjunction with the super-hydrophobicity of polydimethylsiloxane, and the corrosion-resistant mosaic inner membrane prepared will not be corroded in the body's acidic, alkaline, and salt environments, and there will be no residual liquid adhesion in the tube cavity; the natural mesh structure of flaxseed gum, polymerized chlorosulfonated polyethylene, and phenolic resin, the chest drainage tube composite reinforcement body is strong in toughness and has extremely strong support; the surface of the anti-corrosion internal composite tube obtained after hot pressing is coated with a dense corrosion-resistant coating treated with ultraviolet light activation, and the surface of the corrosion-resistant coating is treated with plasma nano-processing, and is tightly combined with a smooth and hydrophobic corrosion-resistant outer wall film. The obtained corrosion-resistant chest drainage tube has extremely strong corrosion resistance, is retained in the chest cavity, and the tube wall and the tube cavity will not adhere to body fluids and secretions, and no delamination occurs. It is soft and light, and there is no foreign body sensation.

Description

Technical Field

[0001] The invention belongs to the field of chest drainage tube preparation, and specifically refers to a corrosion-resistant chest drainage tube and a preparation method thereof. Background Art

[0002] A chest drainage tube is usually made of a section of silicone tube or plastic tube. The chest drainage tube passes through the skin opening into the chest cavity and is fixed with skin sutures. By installing the chest drainage tube in the chest cavity, the blood, fluid and gas in the chest cavity can be discharged, effectively maintaining the negative pressure state in the chest cavity, which helps the expansion of the lungs and the recovery of respiratory function, prevents bacterial infection, and relieves chest tightness. If purulent pleurisy causes local infection in the chest cavity, the corresponding antibiotics can be injected into the pleural cavity through the drainage tube to clean the local area.

[0003] The chest drainage tube is inserted into the space between the ribs. It cannot drain all the accumulated fluid at once. It will remain in the body for a long time to continuously drain the fluid inside the chest cavity and help the lungs return to normal as soon as possible. The drainage effect of the existing drainage tube will change depending on the length of time it is retained in the chest cavity.

[0004] At present, the existing preparation technology of chest drainage tubes mainly has the following problems: first, the drainage tube is in contact with the accumulated fluid to be discharged for a long time, and the wall and the surface of the tube cavity are corroded by the acidic, alkaline and salt substances in the accumulated fluid, resulting in damage, and the components in the drainage tube dissolve into the blood, causing blood infection; second, the wall and the surface of the tube cavity of the drainage tube are damaged, the drainage capacity of the drainage tube becomes slow, the viscous liquid in the drainage tube adheres to the wall and the cavity, microorganisms multiply in large numbers, secrete harmful substances to stimulate the wound, aggravate the pain, bacteria cause inflammation and rot at the wound, and it is difficult to heal. The bacterial infection will also spread to the lungs, causing pneumonia; third, the material of the existing drainage tube is easy to cause discomfort to the body, the drainage tube itself has a strong foreign body sensation, and long-term use will affect normal life. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a corrosion-resistant chest drainage tube and a preparation method thereof. In order to solve the problems that the existing chest drainage tube is left in the chest cavity for a long time, is easily corroded, causes blood infection, causes wound inflammation, has slow drainage, and has a strong foreign body sensation, the present invention uses a corrosion-resistant mosaic inner membrane, a chest drainage tube composite reinforcement, a corrosion-resistant coating, and a corrosion-resistant outer wall membrane for tight combination. The corrosion-resistant chest drainage tube has a dense structure, extremely strong corrosion resistance, a soft texture, no foreign body sensation, and does not irritate the wound.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows: the present invention proposes a corrosion-resistant chest drainage tube, which specifically includes the following composite structure:

[0007] From the inside to the outside, it includes a corrosion-resistant mosaic inner membrane, a chest drainage tube composite reinforcement body, a corrosion-resistant coating, and a corrosion-resistant outer wall membrane.

[0008] Preferably, the thickness of the corrosion-resistant mosaic inner membrane is 0.09-0.16 mm, the thickness of the chest drainage tube composite reinforcement body is 0.31-0.35 mm, the thickness of the corrosion-resistant coating is 0.12-0.19 mm, and the thickness of the corrosion-resistant outer wall membrane is 0.04-0.08 mm.

[0009] Furthermore, the method for preparing the corrosion-resistant mosaic inner membrane specifically comprises the following steps:

[0010] S1, weighing 180-220 parts of bamboo powder, 100-150 parts of chitosan fiber, 60-80 parts of polyhydroxyalkanoate, 40-50 parts of calcium formate, and 280-320 parts of anhydrous ethanol, putting them into a stirring tank with a power of 1.2-1.5 kW, stirring at a temperature of 50-60° C., a stirring speed of 60-80 r / min, and a stirring time of 10-15 min, stirring to obtain a polymer fiber solution;

[0011] S2, weighing 120-130 parts by weight of Suaeda salsa, 70-80 parts of Chicory, and 40-60 parts of Sea Star Saponin, and putting them into a refiner with a power of 1.6-1.8 kW, the refining temperature is 30-35°C, the refining rate is 2000-3000 r / min, the refining time is 25-35 min, and after refining, filtering is performed using a 0.45 mm sterile filter membrane to obtain an active antioxidant solution;

[0012] S3, weighing 230-280 parts by weight of polydimethylsiloxane, and putting it into a stirring and heating pot with a power of 1.8-2.2 kW, the active antioxidant solution prepared by S2 and the polymer fiber solution prepared by S1, the stirring and heating temperature is 28-33°C, the heating and stirring time is 1.2-1.5 h, the heating and stirring speed is 120-130 r / min, and heating and stirring are performed to obtain a corrosion-resistant inner film mixed solution;

[0013] S4. Insert a rubber mold with a diameter of 3-3.5 mm into the corrosion-resistant inner membrane mixture prepared in S3, take it out and place it at a temperature of 23-26°C for 30-35 minutes to obtain a corrosion-resistant mosaic inner membrane.

[0014] Furthermore, the preparation method of the composite reinforcement body of the chest drainage tube specifically comprises the following steps:

[0015] L1. Weigh 140-160 parts by weight of chlorosulfonated polyethylene, 40-50 parts of polyurethane, 10-20 parts of 2,3-dimethylpentane, 20-30 parts of phenolic resin, 8-12 parts of barium hydroxide, 130-150 parts of linseed gum, and 280-330 parts of carbon tetrachloride, put them into a stirring pot with a power of 1.5-1.8 kW, stir at a temperature of 110-120° C., stir for 40-50 min, stir at a speed of 160-180 r / min, and stir evenly to obtain a chest drainage tube composite solution;

[0016] L2, placing the chest drainage tube composite solution prepared in L1 into an oscillator with a power of 2.5-2.8 kW, an oscillation frequency of 2.5 MHz, an oscillation temperature of 25-28°C, and an oscillation time of 30-40 min, and performing oscillation treatment to obtain a balanced composite solution;

[0017] L3. Cast the product prepared in L2 through a rubber drainage tube mold with a diameter of 3.8-4.3 mm. After casting, place it at 23-26°C for 2-3 hours to obtain a composite reinforcement for the chest drainage tube.

[0018] Furthermore, the corrosion-resistant coating specifically comprises the following components in parts by weight:

[0019] 80-100 parts of sarconium gum, 40-50 parts of sodium nitrilotriacetate, 20-30 parts of triethanolamine, 10-20 parts of 2,4,6-triphenyltriazine, 10-15 parts of tert-butyl-4-hydroxyanisole, 12-16 parts of sodium phytate, 10-16 parts of chromium methacrylate chloride, 5-8 parts of zinc chloride, 150-180 parts of ultrapure water, and 100-130 parts of anhydrous ethanol.

[0020] Furthermore, the corrosion-resistant outer wall film specifically comprises the following components in parts by weight:

[0021] 120-150 parts of sea snail mucus, 35-55 parts of phosphatidylcholine, 10-12 parts of potassium hydroxide, and 50-80 parts of polytetrafluoroethylene dispersion.

[0022] The present invention also proposes a method for preparing a corrosion-resistant chest drainage tube, which specifically comprises the following steps:

[0023] Step 1: immerse the corrosion-resistant mosaic inner film in a 30% sodium hydroxide solution at 65-70°C for 3-5 minutes, and then rub the surface with emery cloth for 3-5 times to obtain a roughened corrosion-resistant mosaic inner film;

[0024] Step 2: insert the roughened corrosion-resistant mosaic inner membrane prepared in step 1 into the inner wall of the composite reinforced body of the chest drainage tube, and perform hot pressing in a hot press to obtain a corrosion-resistant inner composite tube;

[0025] Step 3, weighing sassoon gum, sodium nitrilotriacetate, triethanolamine, 2,4,6-triphenyltriazine, tert-butyl-4-hydroxyanisole, sodium inositol hexaphosphate, chromium chloride methacrylate, zinc chloride, ultrapure water, and anhydrous ethanol by weight, putting them into a stirring and heating pot for stirring, stirring and dissolving, and then irradiating under an ultraviolet lamp to obtain a corrosion-resistant coating solution;

[0026] Step 4: coating the corrosion-resistant internal composite pipe prepared in step 2 with the corrosion-resistant coating solution prepared in step 3 under inert gas conditions, and drying the pipe in a dryer to obtain a composite pipe containing a coating;

[0027] Step 5: Place the coated composite pipe prepared in step 4 into a plasma surface treatment machine for plasma surface treatment to obtain a composite pipe containing a corrosion-resistant coating;

[0028] Step 6: Weigh sea snail mucus, phosphatidylcholine, potassium hydroxide, and polytetrafluoroethylene dispersion according to weight, put them into a stirring pot, and stir them evenly to obtain a corrosion-resistant outer wall membrane solution;

[0029] Step seven: apply the corrosion-resistant outer wall film solution prepared in step six to the surface of the composite pipe containing the corrosion-resistant coating prepared in step five under inert gas conditions, and use a curing machine to cure the coating to obtain a corrosion-resistant chest drainage tube.

[0030] Preferably, in step 2, the power of the hot press is 3.2-3.5 kW, the hot pressing pressure is 10-15 MPa, the hot pressing temperature is 100-120° C., and the hot pressing time is 5-10 min.

[0031] Preferably, in step three, the power of the stirring and heating pot is 2.2-2.5 kW, the stirring and heating temperature is 60-65°C, the stirring and heating time is 20-30 min, and the stirring and heating speed is 80-100 r / min; the power of the ultraviolet lamp is 200W, and the wavelength of the ultraviolet lamp is 350-450nm.

[0032] Preferably, in step 4, the inert gas is one or more of helium, neon, argon, krypton, xenon, and radon; the dryer power is 1.5-1.8 kW, the drying time is 15-20 min, and the drying temperature is 50-60°C.

[0033] Preferably, in step 5, the power of the plasma surface treatment machine is 800-1000 W, the plasma surface treatment frequency is 18-25 KHz, and the plasma surface treatment density is 1.1×10 8 -1.1×10 11 Pieces / cm 3The plasma surface treatment temperature is 90-110°C and the plasma surface treatment time is 10-15 min.

[0034] Preferably, in step six, the power of the stirring pot is 1.2-1.6 kW, the stirring temperature is 26-29° C., the stirring time is 20-25 min, and the stirring speed is 120-130 r / min.

[0035] Preferably, in step seven, the inert gas is one or more of helium, neon, argon, krypton, xenon, and radon; the curing machine power is 3.6-3.8 kW, the curing wavelength is 300-400 nm, the curing temperature is 25-30° C., and the curing time is 50-60 min.

[0036] The beneficial effects achieved by the present invention include:

[0037] The invention adopts bamboo powder, chitosan fiber, polyhydroxyalkanoate and calcium formate for mixing to obtain a polymer fiber solution combined with an active antioxidant solution with antioxidant and antibacterial properties. The modified polymer fiber has a dense structure and cooperates with the super-hydrophobicity of polydimethylsiloxane. The prepared corrosion-resistant mosaic inner membrane will not be corroded in acidic, alkaline and salt environments, and when the effusion is discharged, no residual liquid will adhere to the lumen; chlorosulfonated polyethylene, polyurethane, 2,3-dimethylpentane, phenolic resin, barium hydroxide and linseed gum are dispersed in carbon tetrachloride, and the linseed gum has a natural reticular structure. The polymerized chlorosulfonated polyethylene and phenolic resin make the composite reinforcement of the chest drainage tube strong in toughness and extremely strong in support, and no liquid will penetrate; after the surface of the corrosion-resistant mosaic inner membrane is activated, it is roughened with emery cloth, and The composite reinforcement of the chest drainage tube is combined by hot pressing, and the obtained corrosion-resistant internal composite tube has tight layers; the antioxidant and corrosion-resistant coating containing sarconium gum, sodium nitrilotriacetate, triethanolamine, tert-butyl-4-hydroxyanisole, and sodium phytate after activation treatment with ultraviolet light is coated on its nano-surface through plasma surface treatment, and an antioxidant, ultra-smooth hydrophobic and corrosion-resistant outer wall membrane containing sea snail mucus, phosphatidylcholine, potassium hydroxide, and polytetrafluoroethylene dispersion is coated; after curing, the surface of the corrosion-resistant chest drainage tube is dense, and inside the chest cavity, no corrosive body fluids and secretions will adhere to the tube wall, it is corrosion-resistant, and no inflammation will occur at the connection with the wound. The internal structures of the drainage tube are tightly connected to each other, no delamination will occur, it is soft and light, and can be left in the chest cavity for a long time without a foreign body sensation and with a strong sense of comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the present invention or the technical solutions in the prior art, the following will be described in a clear and understandable manner in conjunction with the accompanying drawings. Obviously, the drawings described below are only for the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 This is a schematic diagram of the overall structure of the corrosion-resistant chest drainage tube according to Example 1 of the present invention;

[0040] Figure 2 This is a graph showing the corrosion resistance test results described in Experimental Example 1 of the present invention;

[0041] The meaning of each number in the figure is:

[0042] 1. Corrosion-resistant mosaic inner membrane; 2. Chest drainage tube composite reinforcement; 3. Corrosion-resistant coating; 4. Corrosion-resistant outer wall membrane. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described 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; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0044] Unless otherwise defined, all professional and scientific terms used herein have the same meanings as those familiar to those skilled in the art. In addition, any methods and materials similar or equivalent to those described herein may be applied to the present invention. The preferred implementation methods and materials described herein are for demonstration purposes only and are not intended to limit the content of this application.

[0045] The experimental methods in the following examples are conventional methods unless otherwise specified; the experimental materials and test strains used in the following examples are purchased from commercial channels unless otherwise specified.

[0046] Embodiment 1: This embodiment provides a corrosion-resistant chest drainage tube and a preparation method thereof. The corrosion-resistant chest drainage tube specifically includes the following composite structure:

[0047] From the inside to the outside, it includes a corrosion-resistant mosaic inner membrane, a chest drainage tube composite reinforcement body, a corrosion-resistant coating, and a corrosion-resistant outer wall membrane.

[0048] The thickness of the corrosion-resistant mosaic inner membrane is 0.09 mm, the thickness of the composite reinforcement body of the chest drainage tube is 0.31 mm, the thickness of the corrosion-resistant coating is 0.12 mm, and the thickness of the corrosion-resistant outer wall membrane is 0.04 mm.

[0049] The method for preparing the corrosion-resistant mosaic inner membrane specifically comprises the following steps:

[0050] S1, weighing 180 parts by weight of bamboo powder, 100 parts of chitosan fiber, 60 parts of polyhydroxyalkanoate, 40 parts of calcium formate, and 280 parts of anhydrous ethanol, putting them into a stirring tank with a power of 1.2 kW, stirring at a temperature of 50° C., a stirring speed of 60 r / min, and a stirring time of 10 min, stirring to obtain a polymer fiber solution;

[0051] S2, weighing 120 parts by weight of Suaeda salsa, 70 parts of Chicory, and 40 parts of Sea Star Saponin, putting them into a refiner with a power of 1.6 kW, the refining temperature is 30°C, the refining rate is 2000 r / min, the refining time is 25 min, after refining, filtering with a 0.45 mm sterile filter membrane to obtain an active antioxidant solution;

[0052] S3, weighing 230 parts by weight of polydimethylsiloxane, and putting it into a stirring and heating pot with a power of 1.8 kW, the active antioxidant solution prepared by S2 and the polymer fiber solution prepared by S1, the stirring and heating temperature is 28°C, the heating and stirring time is 1.2h, the heating and stirring speed is 120 r / min, and heating and stirring are performed to obtain a corrosion-resistant inner film mixed solution;

[0053] S4. Insert a rubber mold with a diameter of 3 mm into the corrosion-resistant inner membrane mixture prepared in S3. After taking it out, place it at a temperature of 23°C for 30 minutes to obtain a corrosion-resistant mosaic inner membrane.

[0054] The preparation method of the composite reinforcement body of the chest drainage tube specifically comprises the following steps:

[0055] L1. Weigh 140 parts by weight of chlorosulfonated polyethylene, 40 parts of polyurethane, 10 parts of 2,3-dimethylpentane, 20 parts of phenolic resin, 8 parts of barium hydroxide, 130 parts of linseed gum, and 280 parts of carbon tetrachloride, put them into a stirring pot with a power of 1.5 kW, stir at a temperature of 110°C, stir for 40 min, stir at a speed of 160 r / min, and stir evenly to obtain a chest drainage tube composite solution;

[0056] L2, put the chest drainage tube composite solution prepared in L1 into an oscillator with a power of 2.5 kW, an oscillation frequency of 2.5 MHz, an oscillation temperature of 25°C, and an oscillation time of 30 min, and perform oscillation treatment to obtain a balanced composite solution;

[0057] L3. Cast the product prepared in L2 through a rubber drainage tube mold with a diameter of 3.8 mm. After casting, place it at 23°C for 2 h to obtain a composite reinforcement for the chest drainage tube.

[0058] The corrosion-resistant coating specifically comprises the following components in parts by weight:

[0059] 80 parts of sarconium gum, 40 parts of sodium nitrilotriacetate, 20 parts of triethanolamine, 10 parts of 2,4,6-triphenyltriazine, 10 parts of tert-butyl-4-hydroxyanisole, 12 parts of sodium phytate, 10 parts of chromium methacrylate chloride, 5 parts of zinc chloride, 150 parts of ultrapure water, and 100 parts of anhydrous ethanol.

[0060] The corrosion-resistant outer wall film specifically comprises the following components in parts by weight:

[0061] 120 parts of sea snail mucus, 35 parts of phosphatidylcholine, 10 parts of potassium hydroxide, and 50 parts of polytetrafluoroethylene dispersion.

[0062] This embodiment also provides a method for preparing a corrosion-resistant chest drainage tube, which specifically comprises the following steps:

[0063] Step 1: immerse the corrosion-resistant mosaic inner film in a 30% sodium hydroxide solution at 65°C for 3 min, and then rub the surface with emery cloth for 3 times to obtain a roughened corrosion-resistant mosaic inner film;

[0064] Step 2: insert the roughened corrosion-resistant mosaic inner membrane prepared in step 1 into the inner wall of the composite reinforced body of the chest drainage tube, and perform hot pressing at a pressure of 10 MPa, a temperature of 100°C, and a time of 5 min under a hot press with a power of 3.2 kW to obtain a corrosion-resistant inner composite tube;

[0065] Step 3: Weigh sassafras gum, sodium nitrilotriacetate, triethanolamine, 2,4,6-triphenyltriazine, tert-butyl-4-hydroxyanisole, sodium inositol hexaphosphate, chromium chloride methacrylate, zinc chloride, ultrapure water, and anhydrous ethanol by weight, put them into a stirring and heating pot with a power of 2.2 kW, and stir and heat them at a temperature of 60°C, for 20 min, at a stirring and heating speed of 80 r / min, stir, and after stirring and dissolving, irradiate them under an ultraviolet lamp with a power of 200 W and a wavelength of 350 nm to obtain a corrosion-resistant coating solution;

[0066] Step 4: The corrosion-resistant coating solution prepared in step 3 is coated on the corrosion-resistant internal composite pipe prepared in step 2 under a helium atmosphere, and after coating, a drying machine with a power of 1.5 kW is used for drying for 15 min at a drying temperature of 50° C. to obtain a coated composite pipe;

[0067] Step 5: Place the coated composite tube prepared in step 4 into a plasma surface treatment machine with a power of 800 W, a plasma surface treatment frequency of 18 KHz, and a plasma surface treatment density of 1.1×108 Pieces / cm 3 , the plasma surface treatment temperature is 90°C, the plasma surface treatment time is 10 min, and the plasma surface treatment is performed to obtain a composite pipe containing a corrosion-resistant coating;

[0068] Step 6: Weigh sea snail mucus, phosphatidylcholine, potassium hydroxide, and polytetrafluoroethylene dispersion according to weight, put them into a stirring pot with a power of 1.2 kW, stir at a temperature of 26° C., stir for 20 min, and stir at a speed of 120 r / min. After stirring evenly, a corrosion-resistant outer wall membrane solution is obtained;

[0069] Step seven: apply the corrosion-resistant outer wall film solution prepared in step six to the surface of the composite tube containing the corrosion-resistant coating prepared in step five under a neon atmosphere, using a curing machine with a power of 3.6 kW, a curing wavelength of 300 nm, a curing temperature of 25°C, and a curing time of 50 min. After curing the coating, a corrosion-resistant chest drainage tube is obtained.

[0070] Embodiment 2: This embodiment provides a corrosion-resistant chest drainage tube and a preparation method thereof. The corrosion-resistant chest drainage tube specifically includes the following composite structure:

[0071] From the inside to the outside, it includes a corrosion-resistant mosaic inner membrane, a chest drainage tube composite reinforcement body, a corrosion-resistant coating, and a corrosion-resistant outer wall membrane.

[0072] The thickness of the corrosion-resistant mosaic inner membrane is 0.13 mm, the thickness of the composite reinforcement body of the chest drainage tube is 0.33 mm, the thickness of the corrosion-resistant coating is 0.16 mm, and the thickness of the corrosion-resistant outer wall membrane is 0.06 mm.

[0073] The method for preparing the corrosion-resistant mosaic inner membrane specifically comprises the following steps:

[0074] S1, weighing 200 parts by weight of bamboo powder, 130 parts of chitosan fiber, 70 parts of polyhydroxyalkanoate, 45 parts of calcium formate, and 300 parts of anhydrous ethanol, putting them into a stirring tank with a power of 1.4 kW, stirring at a temperature of 55° C., a stirring speed of 70 r / min, and a stirring time of 13 min, stirring to obtain a polymer fiber solution;

[0075] S2, weighing 125 parts of Suaeda salsa, 75 parts of Chicory, and 50 parts of Sea Star Saponin, putting them into a refiner with a power of 1.7 kW, the refining temperature is 33°C, the refining rate is 2500 r / min, the refining time is 30 min, after refining, filtering with a 0.45 mm sterile filter membrane to obtain an active antioxidant solution;

[0076] S3, weighing 260 parts by weight of polydimethylsiloxane, and putting it into a stirring and heating pot with a power of 2 kW, the active antioxidant solution prepared by S2 and the polymer fiber solution prepared by S1, the stirring and heating temperature is 31°C, the heating and stirring time is 1.4h, the heating and stirring speed is 125 r / min, and heating and stirring are performed to obtain a corrosion-resistant inner film mixed solution;

[0077] S4. Insert a rubber mold with a diameter of 3.3 mm into the corrosion-resistant inner membrane mixture prepared in S3. After taking it out, place it at a temperature of 24°C for 33 minutes to obtain a corrosion-resistant mosaic inner membrane.

[0078] The preparation method of the composite reinforcement body of the chest drainage tube specifically comprises the following steps:

[0079] L1. Weigh 150 parts by weight of chlorosulfonated polyethylene, 45 parts of polyurethane, 15 parts of 2,3-dimethylpentane, 25 parts of phenolic resin, 10 parts of barium hydroxide, 140 parts of linseed gum, and 300 parts of carbon tetrachloride, put them into a stirring pot with a power of 1.7 kW, stir at a temperature of 115° C., stir for 45 min, and stir at a speed of 170 r / min, and stir evenly to obtain a chest drainage tube composite solution;

[0080] L2, put the chest drainage tube composite solution prepared in L1 into an oscillator with a power of 2.6 kW, an oscillation frequency of 2.5 MHz, an oscillation temperature of 27°C, and an oscillation time of 35 min, and perform oscillation treatment to obtain a balanced composite solution;

[0081] L3. Cast the product prepared in L2 through a rubber drainage tube mold with a diameter of 4.1 mm. After casting, place it at 25°C for 2.5 hours to obtain a composite reinforcement for the chest drainage tube.

[0082] The corrosion-resistant coating specifically comprises the following components in parts by weight:

[0083] 90 parts of sassoon gum, 45 parts of sodium nitrilotriacetate, 25 parts of triethanolamine, 15 parts of 2,4,6-triphenyltriazine, 13 parts of tert-butyl-4-hydroxyanisole, 14 parts of sodium phytate, 13 parts of chromium methacrylate chloride, 6 parts of zinc chloride, 170 parts of ultrapure water, and 115 parts of anhydrous ethanol.

[0084] The corrosion-resistant outer wall film specifically comprises the following components in parts by weight:

[0085] 140 parts of sea snail mucus, 45 parts of phosphatidylcholine, 11 parts of potassium hydroxide, and 70 parts of polytetrafluoroethylene dispersion.

[0086] This embodiment also provides a method for preparing a corrosion-resistant chest drainage tube, which specifically comprises the following steps:

[0087] Step 1: immerse the corrosion-resistant mosaic inner film in a 30% sodium hydroxide solution at 67°C for 4 min, and then rub the surface with emery cloth for 4 times to obtain a roughened corrosion-resistant mosaic inner film;

[0088] Step 2: insert the roughened corrosion-resistant mosaic inner membrane prepared in step 1 into the inner wall of the composite reinforced body of the chest drainage tube, and perform hot pressing at a pressure of 12 MPa, a temperature of 110°C, and a time of 8 min under a hot press with a power of 3.4 kW to obtain a corrosion-resistant inner composite tube;

[0089] Step 3: Weigh sassafras gum, sodium nitrilotriacetate, triethanolamine, 2,4,6-triphenyltriazine, tert-butyl-4-hydroxyanisole, sodium inositol hexaphosphate, chromium methacrylate chloride, zinc chloride, ultrapure water, and anhydrous ethanol by weight, put them into a stirring and heating pot with a power of 2.4 kW, and stir and heat them at a temperature of 63°C. The stirring and heating time is 25 min, and the stirring and heating speed is 90 r / min. Stir, stir and dissolve, and then irradiate under an ultraviolet lamp with a power of 200 W and a wavelength of 400 nm to obtain a corrosion-resistant coating solution;

[0090] Step 4: The corrosion-resistant coating solution prepared in step 3 is coated on the corrosion-resistant internal composite pipe prepared in step 2 under an argon atmosphere, and after coating, a drying machine with a power of 1.7 kW is used for drying for 18 min at a drying temperature of 55° C. to obtain a coated composite pipe;

[0091] Step 5: Place the coated composite tube prepared in step 4 into a plasma surface treatment machine with a power of 900 W, a plasma surface treatment frequency of 22 KHz, and a plasma surface treatment density of 1.1×10 9 Pieces / cm 3 , the plasma surface treatment temperature is 100°C, the plasma surface treatment time is 13 min, and the plasma surface treatment is performed to obtain a composite pipe containing a corrosion-resistant coating;

[0092] Step 6: Weigh sea snail mucus, phosphatidylcholine, potassium hydroxide, and polytetrafluoroethylene dispersion according to weight, put them into a stirring pot with a power of 1.4 kW, stir at a temperature of 28° C., stir for 23 min, and stir at a speed of 125 r / min. After stirring evenly, a corrosion-resistant outer wall membrane solution is obtained;

[0093] Step 7: Apply the corrosion-resistant outer wall film solution prepared in step 6 to the surface of the composite tube containing the corrosion-resistant coating prepared in step 5 under a krypton atmosphere, using a curing machine with a power of 3.7 kW, a curing wavelength of 350 nm, a curing temperature of 28°C, and a curing time of 55 min. After curing the coating, a corrosion-resistant chest drainage tube is obtained.

[0094] Embodiment 3: This embodiment provides a corrosion-resistant chest drainage tube and a preparation method thereof. The corrosion-resistant chest drainage tube specifically includes the following composite structure:

[0095] From the inside to the outside, it includes a corrosion-resistant mosaic inner membrane, a chest drainage tube composite reinforcement body, a corrosion-resistant coating, and a corrosion-resistant outer wall membrane.

[0096] The thickness of the corrosion-resistant mosaic inner membrane is 0.16 mm, the thickness of the composite reinforcement body of the chest drainage tube is 0.35 mm, the thickness of the corrosion-resistant coating is 0.19 mm, and the thickness of the corrosion-resistant outer wall membrane is 0.08 mm.

[0097] The method for preparing the corrosion-resistant mosaic inner membrane specifically comprises the following steps:

[0098] S1, weighing 220 parts by weight of bamboo powder, 150 parts of chitosan fiber, 80 parts of polyhydroxyalkanoate, 50 parts of calcium formate, and 320 parts of anhydrous ethanol, putting them into a stirring tank with a power of 1.5 kW, stirring at a temperature of 60° C., a stirring speed of 80 r / min, and a stirring time of 15 min, stirring to obtain a polymer fiber solution;

[0099] S2, weighing 130 parts by weight of Suaeda salsa, 80 parts of Chicory, and 60 parts of Sea Star Saponin, putting them into a refiner with a power of 1.8 kW, the refining temperature is 35°C, the refining rate is 3000 r / min, the refining time is 35 min, and after refining, filtering is performed using a 0.45 mm sterile filter membrane to obtain an active antioxidant solution;

[0100] S3, weighing 280 parts by weight of polydimethylsiloxane, and putting it into a stirring and heating pot with a power of 2.2 kW, the active antioxidant solution prepared by S2 and the polymer fiber solution prepared by S1, the stirring and heating temperature is 33°C, the heating and stirring time is 1.5h, the heating and stirring speed is 130 r / min, and heating and stirring are performed to obtain a corrosion-resistant inner film mixed solution;

[0101] S4. Insert a rubber mold with a diameter of 3.5 mm into the corrosion-resistant inner membrane mixture prepared in S3. After taking it out, place it at a temperature of 26°C for 35 minutes to obtain a corrosion-resistant mosaic inner membrane.

[0102] The preparation method of the composite reinforcement body of the chest drainage tube specifically comprises the following steps:

[0103] L1. Weigh 160 parts by weight of chlorosulfonated polyethylene, 50 parts of polyurethane, 20 parts of 2,3-dimethylpentane, 30 parts of phenolic resin, 12 parts of barium hydroxide, 150 parts of linseed gum, and 330 parts of carbon tetrachloride, put them into a stirring pot with a power of 1.8 kW, stir at a temperature of 120°C, stir for 50 min, and stir at a speed of 180 r / min, and stir evenly to obtain a chest drainage tube composite solution;

[0104] L2, put the chest drainage tube composite solution prepared in L1 into an oscillator with a power of 2.8 kW, an oscillation frequency of 2.5 MHz, an oscillation temperature of 28°C, and an oscillation time of 40 min, and perform oscillation treatment to obtain a balanced composite solution;

[0105] L3. Cast the product prepared in L2 through a rubber drainage tube mold with a diameter of 4.3 mm. After casting, place it at 26°C for 3 hours to obtain a composite reinforcement for the chest drainage tube.

[0106] The corrosion-resistant coating specifically comprises the following components in parts by weight:

[0107] 100 parts of sassoon gum, 50 parts of sodium nitrilotriacetate, 30 parts of triethanolamine, 20 parts of 2,4,6-triphenyltriazine, 15 parts of tert-butyl-4-hydroxyanisole, 16 parts of sodium phytate, 16 parts of chromium methacrylate chloride, 8 parts of zinc chloride, 180 parts of ultrapure water, and 130 parts of anhydrous ethanol.

[0108] The corrosion-resistant outer wall film specifically comprises the following components in parts by weight:

[0109] 150 parts of sea snail mucus, 55 parts of phosphatidylcholine, 12 parts of potassium hydroxide, and 80 parts of polytetrafluoroethylene dispersion.

[0110] This embodiment also provides a method for preparing a corrosion-resistant chest drainage tube, which specifically comprises the following steps:

[0111] Step 1: immerse the corrosion-resistant mosaic inner film in a 30% sodium hydroxide solution at 70°C for 5 min, and then rub the surface with emery cloth for 5 times to obtain a roughened corrosion-resistant mosaic inner film;

[0112] Step 2: insert the roughened corrosion-resistant mosaic inner membrane prepared in step 1 into the inner wall of the composite reinforced body of the chest drainage tube, and perform hot pressing at a pressure of 15 MPa, a temperature of 120°C, and a time of 10 min under a hot press with a power of 3.5 kW to obtain a corrosion-resistant inner composite tube;

[0113] Step 3, weighing sassoon gum, sodium nitrilotriacetate, triethanolamine, 2,4,6-triphenyltriazine, tert-butyl-4-hydroxyanisole, sodium inositol hexaphosphate, chromium chloride methacrylate, zinc chloride, ultrapure water, and anhydrous ethanol by weight, putting them into a stirring and heating pot with a power of 2.5 kW, stirring and heating at a temperature of 65 ° C, stirring and heating for 30 min, stirring and heating at a speed of 100 r / min, stirring, stirring and dissolving, and irradiating under an ultraviolet lamp with a power of 200 W and a wavelength of 450 nm to obtain a corrosion-resistant coating solution;

[0114] Step 4: The corrosion-resistant coating solution prepared in step 3 is coated on the anti-corrosion internal composite tube prepared in step 2 under a xenon atmosphere, and after coating, a drying machine with a power of 1.8 kW is used for drying for 20 min at a drying temperature of 60° C. to obtain a coated composite tube;

[0115] Step 5: Place the coated composite tube prepared in step 4 into a plasma surface treatment machine with a power of 1000 W, a plasma surface treatment frequency of 25 KHz, and a plasma surface treatment density of 1.1×10 11 Pieces / cm 3 The plasma surface treatment temperature is 110°C, the plasma surface treatment time is 15 min, and the plasma surface treatment is performed to obtain a composite pipe containing a corrosion-resistant coating;

[0116] Step 6: Weigh sea snail mucus, phosphatidylcholine, potassium hydroxide, and polytetrafluoroethylene dispersion according to weight, put them into a stirring pot with a power of 1.6 kW, stir at a temperature of 29° C., stir for 25 min, and stir at a speed of 130 r / min. After stirring evenly, a corrosion-resistant outer wall membrane solution is obtained;

[0117] Step seven: apply the corrosion-resistant outer wall film solution prepared in step six to the surface of the composite pipe containing the corrosion-resistant coating prepared in step five in a radon atmosphere, using a curing machine with a power of 3.8 kW, a curing wavelength of 400 nm, a curing temperature of 30°C, and a curing time of 60 min. After curing the coating, a corrosion-resistant chest drainage tube is obtained.

[0118] Embodiment 4: This embodiment provides a corrosion-resistant chest drainage tube and a preparation method thereof. The corrosion-resistant chest drainage tube specifically includes the following composite structure:

[0119] From the inside to the outside, it includes a corrosion-resistant mosaic inner membrane, a chest drainage tube composite reinforcement body, a corrosion-resistant coating, and a corrosion-resistant outer wall membrane.

[0120] The thickness of the corrosion-resistant mosaic inner membrane is 0.12 mm, the thickness of the chest drainage tube composite reinforcement body is 0.32 mm, the thickness of the corrosion-resistant coating is 0.14 mm, and the thickness of the corrosion-resistant outer wall membrane is 0.05 mm.

[0121] The method for preparing the corrosion-resistant mosaic inner membrane specifically comprises the following steps:

[0122] S1, weighing 190 parts by weight of bamboo powder, 120 parts by weight of chitosan fiber, 65 parts by weight of polyhydroxyalkanoate, 43 parts by weight of calcium formate, and 290 parts by weight of anhydrous ethanol, and putting them into a stirring tank with a power of 1.3 kW, stirring at a temperature of 53° C., a stirring speed of 60 r / min, and a stirring time of 12 min, and stirring to obtain a polymer fiber solution;

[0123] S2, weighing 123 parts by weight of Suaeda salsa, 72 parts of Chicory, and 45 parts of Sea Star Saponin, putting them into a refiner with a power of 1.7 kW, the refining temperature is 32°C, the refining rate is 2300 r / min, the refining time is 28 min, after refining, filtering with a 0.45 mm sterile filter membrane to obtain an active antioxidant solution;

[0124] S3, weighing 250 parts by weight of polydimethylsiloxane, and putting it into a stirring and heating pot with a power of 1.9 kW, the active antioxidant solution prepared by S2 and the polymer fiber solution prepared by S1, the stirring and heating temperature is 30°C, the heating and stirring time is 1.3h, the heating and stirring speed is 120 r / min, and heating and stirring are performed to obtain a corrosion-resistant inner film mixed solution;

[0125] S4. Insert a rubber mold with a diameter of 3.2 mm into the corrosion-resistant inner membrane mixture prepared in S3, take it out and place it at a temperature of 24°C for 32 minutes to obtain a corrosion-resistant mosaic inner membrane.

[0126] The preparation method of the composite reinforcement body of the chest drainage tube specifically comprises the following steps:

[0127] L1. Weigh 145 parts by weight of chlorosulfonated polyethylene, 43 parts of polyurethane, 12 parts of 2,3-dimethylpentane, 24 parts of phenolic resin, 9 parts of barium hydroxide, 135 parts of linseed gum, and 290 parts of carbon tetrachloride, put them into a stirring pot with a power of 1.6 kW, stir at a temperature of 113° C., stir for 42 min, and stir at a speed of 170 r / min, and stir evenly to obtain a chest drainage tube composite solution;

[0128] L2, put the chest drainage tube composite solution prepared in L1 into an oscillator with a power of 2.6 kW, an oscillation frequency of 2.5 MHz, an oscillation temperature of 26°C, and an oscillation time of 33 min, and perform oscillation treatment to obtain a balanced composite solution;

[0129] L3. The product prepared in L2 is cast through a rubber drainage tube mold with a diameter of 3.9 mm. After casting, it is placed at 24°C for 2.3 h to obtain a composite reinforcement for the chest drainage tube.

[0130] The corrosion-resistant coating specifically comprises the following components in parts by weight:

[0131] 85 parts of sarconium gum, 43 parts of sodium nitrilotriacetate, 22 parts of triethanolamine, 14 parts of 2,4,6-triphenyltriazine, 12 parts of tert-butyl-4-hydroxyanisole, 13 parts of sodium phytate, 11 parts of chromium methacrylate chloride, 5 parts of zinc chloride, 160 parts of ultrapure water, and 110 parts of anhydrous ethanol.

[0132] The corrosion-resistant outer wall film specifically comprises the following components in parts by weight:

[0133] 130 parts of sea snail mucus, 40 parts of phosphatidylcholine, 10 parts of potassium hydroxide, and 60 parts of polytetrafluoroethylene dispersion.

[0134] This embodiment also provides a method for preparing a corrosion-resistant chest drainage tube, which specifically comprises the following steps:

[0135] Step 1: immerse the corrosion-resistant mosaic inner film in a 30% sodium hydroxide solution at 66°C for 4 min, and then rub the surface with emery cloth for 3 times to obtain a roughened corrosion-resistant mosaic inner film;

[0136] Step 2: insert the roughened corrosion-resistant mosaic inner membrane prepared in step 1 into the inner wall of the composite reinforced body of the chest drainage tube, and perform hot pressing at a pressure of 12 MPa, a temperature of 110°C, and a time of 7 min under a hot press with a power of 3.3 kW to obtain a corrosion-resistant inner composite tube;

[0137] Step 3: Weigh sassafras gum, sodium nitrilotriacetate, triethanolamine, 2,4,6-triphenyltriazine, tert-butyl-4-hydroxyanisole, sodium inositol hexaphosphate, chromium chloride methacrylate, zinc chloride, ultrapure water, and anhydrous ethanol by weight, put them into a stirring and heating pot with a power of 2.3 kW, and stir and heat at a temperature of 62° C. The stirring and heating time is 24 min, and the stirring and heating speed is 90 r / min. Stir, stir and dissolve, and then irradiate under an ultraviolet lamp with a power of 200 W and a wavelength of 380 nm to obtain a corrosion-resistant coating solution;

[0138] Step 4: The corrosion-resistant coating solution prepared in step 3 is coated on the corrosion-resistant internal composite pipe prepared in step 2 under a helium atmosphere, and after coating, a drying machine with a power of 1.6 kW is used for drying for 17 min at a drying temperature of 52° C. to obtain a coated composite pipe;

[0139] Step 5: Place the coated composite tube prepared in step 4 into a plasma surface treatment machine with a power of 900 W, a plasma surface treatment frequency of 20 KHz, and a plasma surface treatment density of 1.1×10 9 Pieces / cm 3 The plasma surface treatment temperature is 95°C, the plasma surface treatment time is 12 min, and the plasma surface treatment is performed to obtain a composite pipe containing a corrosion-resistant coating;

[0140] Step 6: Weigh sea snail mucus, phosphatidylcholine, potassium hydroxide, and polytetrafluoroethylene dispersion according to weight, put them into a stirring pot with a power of 1.3 kW, the stirring temperature is 27° C., the stirring time is 22 min, the stirring speed is 125 r / min, and after stirring evenly, a corrosion-resistant outer wall membrane solution is obtained;

[0141] Step seven: apply the corrosion-resistant outer wall film solution prepared in step six to the surface of the composite tube containing the corrosion-resistant coating prepared in step five under a neon atmosphere, using a curing machine with a power of 3.7 kW, a curing wavelength of 330 nm, a curing temperature of 27°C, and a curing time of 52 min. After curing the coating, a corrosion-resistant chest drainage tube is obtained.

[0142] Embodiment 5: This embodiment provides a corrosion-resistant chest drainage tube and a preparation method thereof. The corrosion-resistant chest drainage tube specifically includes the following composite structure:

[0143] From the inside to the outside, it includes a corrosion-resistant mosaic inner membrane, a chest drainage tube composite reinforcement body, a corrosion-resistant coating, and a corrosion-resistant outer wall membrane.

[0144] The thickness of the corrosion-resistant mosaic inner membrane is 0.15 mm, the thickness of the composite reinforcement body of the chest drainage tube is 0.34 mm, the thickness of the corrosion-resistant coating is 0.18 mm, and the thickness of the corrosion-resistant outer wall membrane is 0.07 mm.

[0145] The method for preparing the corrosion-resistant mosaic inner membrane specifically comprises the following steps:

[0146] S1, weighing 210 parts by weight of bamboo powder, 140 parts of chitosan fiber, 75 parts of polyhydroxyalkanoate, 48 parts of calcium formate, and 310 parts of anhydrous ethanol, putting them into a stirring tank with a power of 1.4 kW, stirring at a temperature of 58° C., a stirring speed of 75 r / min, and a stirring time of 14 min, stirring to obtain a polymer fiber solution;

[0147] S2, weighing 128 parts by weight of Suaeda salsa, 78 parts of Chicory, and 55 parts of Sea Star Saponin, putting them into a refiner with a power of 1.7 kW, the refining temperature is 34°C, the refining rate is 2800 r / min, the refining time is 32 min, and after refining, filtering is performed using a 0.45 mm sterile filter membrane to obtain an active antioxidant solution;

[0148] S3, weighing 270 parts by weight of polydimethylsiloxane, and putting it into a stirring and heating pot with a power of 2.1 kW, the active antioxidant solution prepared by S2 and the polymer fiber solution prepared by S1, the stirring and heating temperature is 32°C, the heating and stirring time is 1.4h, the heating and stirring speed is 125 r / min, and heating and stirring are performed to obtain a corrosion-resistant inner film mixed solution;

[0149] S4. Insert a rubber mold with a diameter of 3.4 mm into the corrosion-resistant inner membrane mixture prepared in S3. After taking it out, place it at a temperature of 25°C for 34 minutes to obtain a corrosion-resistant mosaic inner membrane.

[0150] The preparation method of the composite reinforcement body of the chest drainage tube specifically comprises the following steps:

[0151] L1. Weigh 155 parts by weight of chlorosulfonated polyethylene, 48 parts of polyurethane, 18 parts of 2,3-dimethylpentane, 28 parts of phenolic resin, 11 parts of barium hydroxide, 145 parts of linseed gum, and 320 parts of carbon tetrachloride, put them into a stirring pot with a power of 1.7 kW, stir at a temperature of 118°C, stir for 46 min, stir at a speed of 170 r / min, and stir evenly to obtain a chest drainage tube composite solution;

[0152] L2, put the chest drainage tube composite solution prepared in L1 into an oscillator with a power of 2.7 kW, an oscillation frequency of 2.5 MHz, an oscillation temperature of 27°C, and an oscillation time of 38 min, and perform oscillation treatment to obtain a balanced composite solution;

[0153] L3. Cast the product prepared in L2 through a rubber drainage tube mold with a diameter of 4.2 mm. After casting, place it at 25°C for 2.8 h to obtain a composite reinforcement for the chest drainage tube.

[0154] The corrosion-resistant coating specifically comprises the following components in parts by weight:

[0155] 95 parts of sarconium gum, 48 parts of sodium nitrilotriacetate, 28 parts of triethanolamine, 18 parts of 2,4,6-triphenyltriazine, 14 parts of tert-butyl-4-hydroxyanisole, 15 parts of sodium phytate, 15 parts of chromium methacrylate chloride, 7 parts of zinc chloride, 170 parts of ultrapure water, and 120 parts of anhydrous ethanol.

[0156] The corrosion-resistant outer wall film specifically comprises the following components in parts by weight:

[0157] 145 parts of sea snail mucus, 50 parts of phosphatidylcholine, 11 parts of potassium hydroxide, and 75 parts of polytetrafluoroethylene dispersion.

[0158] This embodiment also provides a method for preparing a corrosion-resistant chest drainage tube, which specifically comprises the following steps:

[0159] Step 1: immerse the corrosion-resistant mosaic inner film in a 30% sodium hydroxide solution at 68°C for 5 min, and then rub the surface with emery cloth for 4 times to obtain a roughened corrosion-resistant mosaic inner film;

[0160] Step 2: insert the roughened corrosion-resistant mosaic inner membrane prepared in step 1 into the inner wall of the composite reinforced body of the chest drainage tube, and perform hot pressing at a pressure of 14 MPa, a temperature of 110°C, and a time of 9 min under a hot press with a power of 3.4 kW to obtain a corrosion-resistant inner composite tube;

[0161] Step 3: Weigh sassafras gum, sodium nitrilotriacetate, triethanolamine, 2,4,6-triphenyltriazine, tert-butyl-4-hydroxyanisole, sodium inositol hexaphosphate, chromium methacrylate chloride, zinc chloride, ultrapure water, and anhydrous ethanol by weight, put them into a stirring and heating pot with a power of 2.4 kW, and stir and heat them at a temperature of 63°C. The stirring and heating time is 28 min, and the stirring and heating speed is 100 r / min. Stir, stir and dissolve, and then irradiate under an ultraviolet lamp with a power of 200 W and a wavelength of 400 nm to obtain a corrosion-resistant coating solution;

[0162] Step 4: The corrosion-resistant coating solution prepared in step 3 is coated on the corrosion-resistant internal composite pipe prepared in step 2 under an argon atmosphere, and after coating, a drying machine with a power of 1.7 kW is used for drying for 18 min at a drying temperature of 58° C. to obtain a coated composite pipe;

[0163] Step 5: Place the coated composite tube prepared in step 4 into a plasma surface treatment machine with a power of 900 W, a plasma surface treatment frequency of 24 KHz, and a plasma surface treatment density of 1.1×10 9 Pieces / cm 3 , the plasma surface treatment temperature is 100°C, the plasma surface treatment time is 14 min, and the plasma surface treatment is performed to obtain a composite pipe containing a corrosion-resistant coating;

[0164] Step 6: Weigh sea snail mucus, phosphatidylcholine, potassium hydroxide, and polytetrafluoroethylene dispersion according to weight, put them into a stirring pot with a power of 1.5 kW, stir at a temperature of 28° C., stir for 24 min, and stir at a speed of 125 r / min. After stirring evenly, a corrosion-resistant outer wall membrane solution is obtained;

[0165] Step 7: Apply the corrosion-resistant outer wall film solution prepared in step 6 to the surface of the composite tube containing the corrosion-resistant coating prepared in step 5 under a krypton atmosphere, using a curing machine with a power of 3.7 kW, a curing wavelength of 380 nm, a curing temperature of 29° C., and a curing time of 58 min. After curing the coating, a corrosion-resistant chest drainage tube is obtained.

[0166] Experimental Example 1: Corrosion resistance determination test.

[0167] The test steps for determining the corrosion resistance of the corrosion-resistant chest drainage tubes prepared in Examples 1-5 are as follows:

[0168] (1) Salt water resistance test: Take the corrosion-resistant chest drainage tubes prepared in Examples 1-5 with a length of 45 cm respectively, immerse them in a 20% sodium chloride solution, and record the time required for complete corrosion as the salt resistance. The corrosion-resistant chest drainage tube prepared in each example is sampled 5 times, and a 45 cm long ordinary rubber drainage tube is taken as the CK control group, and the results are averaged;

[0169] (2) Acid resistance test: Take the corrosion-resistant chest drainage tubes prepared in Examples 1-5 with a length of 45 cm respectively, immerse them in 50% concentrated sulfuric acid, and record the time required for complete corrosion as the acid resistance. Sample the corrosion-resistant chest drainage tube prepared in each Example 5 times, and take a 45 cm length of ordinary rubber drainage tube as the CK control group, and take the average value of the results;

[0170] (3) Alkali resistance test: Take the corrosion-resistant chest drainage tubes prepared in Examples 1-5 with a length of 45 cm respectively, immerse them in a 10% concentration of sodium hydroxide solution, and record the time required for complete corrosion as the alkalinity resistance. The corrosion-resistant chest drainage tube prepared in each example is sampled 5 times, and a 45 cm long ordinary rubber drainage tube is taken as the CK control group, and the results are averaged.

[0171] Experimental Example 2: Adhesion performance measurement test.

[0172] The test steps for measuring the adhesion performance of the corrosion-resistant mosaic inner membrane and the corrosion-resistant outer wall membrane of the corrosion-resistant chest drainage tube prepared in Examples 1-5 are as follows:

[0173] The adhesion of the corrosion-resistant mosaic inner membrane and the corrosion-resistant outer wall membrane of the corrosion-resistant chest drainage tube prepared in Examples 1-5 was tested according to "GB / T1720-1979 (1989) Paint Film Adhesion Determination Method", and the test results are recorded in Table 1.

[0174] Table 1. Adhesion performance test table

[0175]

[0176] Result analysis: As shown in Table 1, the adhesion of the corrosion-resistant chimeric inner membrane of the corrosion-resistant chest drainage tube prepared in Examples 1-5 to the composite reinforcement of the chest drainage tube and the corrosion-resistant outer wall membrane to the corrosion-resistant coating is level 0, and the adhesion is excellent. It will not delaminate when left in the body for a long time, will not be corroded by effusion and drugs, and has a dense structure.

[0177] Figure 2 The corrosion resistance test result diagram of Experimental Example 1 of the present invention is shown in the figure. The salt resistance of the corrosion-resistant chest drainage tubes prepared in Examples 1-5 is 3548.7 h, 3679.3 h, 3769.4 h, 3668 h, and 3729 h, while the salt resistance of the ordinary rubber drainage tube in the control group is 2065.7 h. The acid resistance of the corrosion-resistant chest drainage tubes prepared in Examples 1-5 is 3715 h, 3798.4 h, 3816.7 h, 3746 h, and 3805.2 h, while the acid resistance of the ordinary rubber drainage tube in the control group is 1695 h. The alkali resistance of the corrosion-resistant chest drainage tubes prepared in Examples 1-5 is 3847 h, 3954.6 h, 3975.3 h, 3919 h, and 3964.2 h, while the alkali resistance of the ordinary rubber drainage tube in the control group is 1719 h, indicating that the corrosion-resistant mosaic inner membrane, the composite reinforcement body, the corrosion-resistant coating and the corrosion-resistant outer wall membrane composite structure of the corrosion-resistant chest drainage tube described in the present invention have extremely strong corrosion resistance.

[0178] 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.

[0179] The present invention and its implementation methods are described above, which is not restrictive. The drawings are only one of the implementation methods of the present invention, and the actual application is not limited thereto. In short, if ordinary technicians in the field are inspired by it and design methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention, they should all fall within the protection scope of the present invention.

Claims

1. A corrosion-resistant chest drainage tube, characterized in that: The corrosion-resistant chest drainage tube specifically comprises the following composite structure: From the inside to the outside, it includes a corrosion-resistant mosaic inner membrane, a chest drainage tube composite reinforcement body, a corrosion-resistant coating, and a corrosion-resistant outer wall membrane; The thickness of the corrosion-resistant mosaic inner membrane is 0.09-0.16 mm, the thickness of the chest drainage tube composite reinforcement body is 0.31-0.35 mm, the thickness of the corrosion-resistant coating is 0.12-0.19 mm, and the thickness of the corrosion-resistant outer wall membrane is 0.04-0.08 mm; The modification treatment method of the corrosion-resistant mosaic inner membrane specifically comprises the following steps: 180-220 parts by weight of bamboo powder, 100-150 parts of chitosan fiber, 60-80 parts of polyhydroxyalkanoate, and 40-50 parts of calcium formate are added to anhydrous ethanol, and the mixture is mixed with 120-130 parts of Suaeda salsa, 70-80 parts of Sophora japonica, and 40-60 parts of sea star saponin, and the active antioxidant solution is filtered and mixed, and finally 230-280 parts of polydimethylsiloxane are added, and the mixture is heated and stirred, and molded into a corrosion-resistant mosaic inner membrane; The preparation method of the composite reinforcement body of the chest drainage tube specifically comprises the following steps: Disperse 140-160 parts by weight of chlorosulfonated polyethylene, 40-50 parts of polyurethane, 10-20 parts of 2,3-dimethylpentane, 20-30 parts of phenolic resin, 8-12 parts of barium hydroxide, and 130-150 parts of linseed gum in 280-330 parts of carbon tetrachloride, heat and stir evenly, vibrate evenly, and then cast using a drainage tube mold to obtain a chest drainage tube composite reinforcement; The corrosion-resistant coating specifically comprises the following components in parts by weight: 80-100 parts of sarconium gum, 40-50 parts of sodium nitrilotriacetate, 20-30 parts of triethanolamine, 10-20 parts of 2,4,6-triphenyltriazine, 10-15 parts of tert-butyl-4-hydroxyanisole, 12-16 parts of sodium phytate, 10-16 parts of chromium chloride methacrylate, 5-8 parts of zinc chloride, 150-180 parts of ultrapure water, and 100-130 parts of anhydrous ethanol; The corrosion-resistant outer wall film specifically comprises the following components in parts by weight: 120-150 parts of sea snail mucus, 35-55 parts of phosphatidylcholine, 10-12 parts of potassium hydroxide, and 50-80 parts of polytetrafluoroethylene dispersion; The method for preparing the corrosion-resistant chest drainage tube specifically comprises the following steps: Step 1: immersing the corrosion-resistant mosaic inner membrane into a sodium hydroxide solution, and roughening the surface with emery cloth after immersion to obtain a roughened corrosion-resistant mosaic inner membrane; Step 2: insert the roughened corrosion-resistant mosaic inner membrane prepared in step 1 into the inner wall of the composite reinforced body of the chest drainage tube, and perform heat pressing with a hot press to obtain a corrosion-resistant inner composite tube; Step 3, weighing sassoon gum, sodium nitrilotriacetate, triethanolamine, 2,4,6-triphenyltriazine, tert-butyl-4-hydroxyanisole, sodium inositol hexaphosphate, chromium chloride methacrylate, zinc chloride, ultrapure water, and anhydrous ethanol by weight, putting them into a stirring and heating pot for stirring, stirring and dissolving, and irradiating with ultraviolet light for activation to obtain a corrosion-resistant coating solution; Step 4: Under an inert gas atmosphere, the corrosion-resistant coating solution prepared in step 3 is coated on the surface of the anti-corrosion internal composite pipe prepared in step 2, and the coated composite pipe is obtained after drying; Step 5, weighing sea snail mucus, phosphatidylcholine, potassium hydroxide, and polytetrafluoroethylene dispersion according to weight, putting them into a stirring pot, and stirring them evenly to obtain a corrosion-resistant outer wall membrane solution; Step 6: Under an inert gas atmosphere, the surface of the coated composite tube prepared in step 4 is subjected to plasma surface treatment, and then the corrosion-resistant outer wall film solution prepared in step 5 is applied, and after curing, a corrosion-resistant chest drainage tube is obtained.

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