An antibioadhesive macromolecular material for filtering bags and a method for preparing the same

Abstract

The application relates to the technical field of high polymer material preparation, and discloses an antibioadhesion high polymer material for filtering bags and a preparation method thereof, which comprises the following raw materials in parts by mass: 50-60 parts of hydrophobic monomers, 55-65 parts of hydrophilic monomers, 80-100 parts of high polymer, 5-10 parts of reinforcing fillers, 120-130 parts of solvents and 1-2 parts of initiators. The hydrophobic monomers and the hydrophilic monomers form an acrylate-based amphoteric copolymer, a dense hydration barrier is generated on the material surface through hydrogen bonds and electrostatic interaction, efficient antibioadhesion function is ensured, the hydrophilic groups can be combined with the reinforcing fillers, the reinforcing fillers are distributed on the material matrix surface, the acrylate-based amphoteric copolymer is compounded, a dense hydration barrier is generated on the material matrix surface, and the interaction between biological pollutants and the material surface is weakened.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of high polymer material preparation, in particular to an antibioadhesion high polymer material for a filter bag and a preparation method thereof. BACKGROUND

[0002] The high polymer material is widely used in core components in the fields of industrial dust removal, water treatment and medical protection, such as filter bags, and the surface antibioadhesion performance of the high polymer material directly determines the service life and safety. Bioadhesion is a process in which biological pollutants such as bacteria, polysaccharides, polypeptides and proteins are combined with the surface of the material through non-specific or specific adsorption. The antibioadhesion high polymer material is mostly modified by using a nano material, PEG, an amphoteric ion polymer and the like in a coating mode. The preparation of the hydrophilic functional coating mainly adopts the following two methods: a first method is chemical grafting modification, and the coating prepared by the method has high stability; and a second method is physical adsorption, and the coating prepared by the method is simple in preparation, but has poor stability and is easy to fall off, thus causing a safety hazard.

[0003] The addition of a zinc-based metal organic framework in the high polymer material can increase the membrane permeability, interfere with the metabolic enzyme activity and induce oxidative stress, so as to prevent microbial adhesion. However, the metal organic framework is collapsed under the action of external force, thus affecting the antibioadhesion performance. Diphosphocholine can form an organic-inorganic antibioadhesion effect with the zinc-based metal organic framework. However, the diphosphocholine is easy to be affected by light, heat and humidity, thus reducing the antibioadhesion performance. SUMMARY

[0004] The application provides an antibioadhesion high polymer material for a filter bag and a preparation method thereof, and solves the problems of poor antibioadhesion performance and low mechanical performance of the high polymer material.

[0005] The technical scheme of the application is as follows:

[0006] The antibioadhesion high polymer material for the filter bag comprises the following raw materials in parts by mass: 50-60 parts of a hydrophobic monomer, 55-65 parts of a hydrophilic monomer, 80-100 parts of a high polymer, 5-10 parts of reinforcing filler, 120-130 parts of a solvent and 1-2 parts of an initiator.

[0007] The reinforcing filler is obtained by reacting a metal organic framework loaded with phosphocholine with oxidized bacterial cellulose, and then mixing and reacting the resultant with ferric chloride and tea polyphenol, and depositing on the surface of pretreated carbon fiber.

[0008] The metal organic framework loaded with phosphocholine is obtained by mixing and reacting zinc nitrate hexahydrate, 2-aminobenzothiazole and 2-methylimidazole, and then mixing with a diphosphocholine solution.

[0009] A method for preparing an anti-bioadhesion high-molecular material for filtering bags, comprising the following preparation steps:

[0010] S1. Mix the hydrophobic monomer, the hydrophilic monomer, the solvent and the reinforcing filler, stir at 600-700 r / min for 5-10 min, add the initiator, stir at 60-80℃ for 4-6 h, concentrate by rotary evaporation, precipitate, filter and dry to obtain a composite acrylate-based amphoteric copolymer;

[0011] S2. Mix the composite acrylate-based amphoteric copolymer and the high-molecular polymer, stir at 600-700 r / min for 0.5-1 h, melt-extrude and granulate to obtain the anti-bioadhesion high-molecular material.

[0012] Further, the hydrophobic monomer is selected from any one of methyl methacrylate, butyl methacrylate, methyl acrylate, ethyl acrylate and butyl acrylate.

[0013] Further, the hydrophilic monomer is selected from any one of hydroxyethyl methacrylate, 2-acrylamido-2-methylpropanesulfonic acid, N-vinylpyrrolidone, glycidyl methacrylate, polyethylene glycol dimethacrylate and methacrylic acid.

[0014] Further, the solvent is selected from deionized water or ethanol.

[0015] Further, the high-molecular polymer is selected from any one of polyvinyl chloride, polylactic acid, polyether polyurethane, polyvinyl alcohol, polyethylene and polypropylene.

[0016] Further, the initiator is selected from any one of azobisisobutyronitrile, azobisisoheptyl nitrile and potassium persulfate.

[0017] Further, the melt-extrusion is performed by using a melt-extruder, the rotation speed is 150-200 rpm and the extrusion temperature is 165-185℃.

[0018] Further, the reinforcing filler is prepared by the following steps:

[0019] A1. Add zinc nitrate hexahydrate, 2-amino benzothiazole and 2-methyl imidazole into methanol, stir until uniform, add sodium formate, pass nitrogen gas, react at 60-70℃ for 3-5 h, centrifuge, wash and dry to obtain a zinc-based metal organic framework;

[0020] A2. Add the zinc-based metal organic framework into a dicoledine phosphate solution, stir until uniform, filter, wash and dry after negative pressure to obtain a metal organic framework loaded with dicoledine phosphate;

[0021] A3. The oxidized bacterial cellulose is added to dimethyl sulfoxide, after rotary evaporation, triethylamine and metal organic framework loaded with phosphatidylcholine are added, stirred uniformly, stirred at 0-2℃ for 20-24h, adjust pH to 9-11 by adding ammonia water, continue to stir for 1-2h, centrifugal, freeze-drying, to obtain modified oxidized bacterial cellulose;

[0022] A4. The modified oxidized bacterial cellulose is added to deionized water, stirred uniformly, tea polyphenols and ferric chloride are added, stirred at 300-400r / min for 1-2h to gel, the gel is washed, freeze-drying, to obtain composite aerogel;

[0023] A5. The pretreated carbon fiber is added to ethanol, stirred uniformly, the composite aerogel is added, stirred at 100-200r / min for 20-30min, after standing, filtered, washed, dried, to obtain reinforcing filler.

[0024] Further, in the above A1 reaction process, after mixing zinc nitrate hexahydrate, 2-amino benzothiazole and 2-methyl imidazole, 2-methyl imidazole and 2-amino benzothiazole act as organic ligands, zinc ions react with the organic ligands to form a three-dimensional network structure of zinc-based metal organic framework.

[0025] Further, in the above A2 reaction process, the porous structure of zinc-based metal organic framework has excellent adsorption performance, which can adsorb phosphatidylcholine solution onto the zinc-based metal organic framework to obtain metal organic framework loaded with phosphatidylcholine.

[0026] Further, in the above A3 reaction process, the P-H bond contained in the metal organic framework loaded with phosphatidylcholine can react with the aldehyde group of oxidized bacterial cellulose, so that the metal organic framework loaded with phosphatidylcholine is grafted on the molecular chain of oxidized bacterial cellulose to obtain modified oxidized bacterial cellulose.

[0027] Further, in the above A4 reaction process, ferric chloride as a crosslinking agent can combine with the oxygen-containing functional groups contained in the modified oxidized bacterial cellulose through strong hydrogen bonds, and can also form a hydrogen bond network with the phenolic hydroxyl groups of tea polyphenols, thereby forming a three-dimensional network structure of composite aerogel structure.

[0028] Further, in the above A5 reaction process, the pretreated carbon fiber surface contains a large number of phenolic hydroxyl groups, which has excellent adhesion performance, and can adhere the composite aerogel to the surface of the pretreated carbon fiber as a reinforcing filler.

[0029] Further, in step A1, the amount ratio of zinc nitrate hexahydrate, 2-amino benzothiazole, 2-methyl imidazole, methanol and sodium formate is (1.6-2)g:(1-2)g:(2-3)g:(75-85)mL:(1.1-1.3)g.

[0030] Further, in step A2, the amount ratio of zinc-based metal organic framework and choline phosphate solution is (2-3) g:(18-22) mL.

[0031] Further, in step A3, the amount ratio of oxidized bacterial cellulose, dimethyl sulfoxide, triethylamine and metal organic framework loaded with choline phosphate is (0.4-0.6) g:(45-55) mL:(1.6-1.8) mL:(1.2-1.4) g.

[0032] Further, in step A4, the amount ratio of modified oxidized bacterial cellulose, deionized water, tea polyphenol and ferric chloride is (3-5) g:(45-55) mL:(2-2.4) g:(0.1-0.3) g.

[0033] Further, in step A5, the amount ratio of pretreated carbon fiber, ethanol and composite aerogel is (2-3) g:(75-85) mL:(1.1-1.3) g.

[0034] Further, the oxidized bacterial cellulose is prepared by the following steps:

[0035] The bacterial cellulose is added into deionized water, stirred uniformly, sodium periodate is added, after stirring and reaction, the product is collected by centrifugation, the product is washed, freeze-dried to obtain the oxidized bacterial cellulose.

[0036] Further, in the above reaction process, the sodium periodate solution acts as an oxidizing agent to achieve the aldehyde group of the bacterial cellulose, so that the bacterial cellulose molecular chain carries aldehyde functional groups.

[0037] Further, the amount ratio of bacterial cellulose, deionized water and sodium periodate is (1-2) g:(90-110) mL:(0.3-0.5) g.

[0038] Further, the pretreated carbon fiber is prepared by the following steps:

[0039] The carbon fiber is added into Tris-HCl buffer solution, stirred uniformly, dopamine is added, continue to stir, filter, wash, dry to obtain the pretreated carbon fiber.

[0040] Further, in the above reaction process, in the Tris-HCl buffer solution, dopamine can self-polymerize on the surface of carbon fiber to form polydopamine, forming polydopamine modified oxidized graphene, i.e. pretreated carbon fiber.

[0041] Further, the amount ratio of carbon fiber, Tris-HCl buffer solution and dopamine is (1.4-1.6) g:(90-110) mL:(0.6-0.8) g.

[0042] Further, the carbon fiber has a length of 2-5 μm and a diameter of 0.3-0.5 μm.

[0043] Further, the phospholipid solution is prepared by the following steps:

[0044] The choline chloride is added to the dimethyl sulfoxide, and after rotary evaporation, the diphenyl phosphite and pyridine are added, and the reaction is stirred at room temperature for 3-5 h, and then rotary evaporation is performed to obtain the phospholipid solution.

[0045] Further, the choline chloride, dimethyl sulfoxide, diphenyl phosphite and pyridine are used in a ratio of (3-3.4) g:(75-85) mL:(2-3) mL:(4-6) mL.

[0046] The present application has the following beneficial effects:

[0047] (1) In the technical scheme of the present application, the zinc nitrate hexahydrate, 2-amino benzothiazole and 2-methyl imidazole are mixed and reacted to form a zinc-based metal organic framework with a three-dimensional network structure, the zinc-based metal organic framework slowly releases zinc ions in a humid or biological environment, increases the membrane permeability, causes the contents to leak, and further damages the cell membrane integrity, and can interfere with the metabolic enzyme activity and induce oxidative stress, thereby achieving the effect of preventing microbial adhesion; the phospholipid solution is adsorbed onto the zinc-based metal organic framework, on the one hand, the phospholipid is composed of a hydrophilic head and a hydrophobic tail, the hydrophilic head contains a negatively charged phosphate group and a positively charged choline group, and can preferentially adsorb water through electrostatic interaction, forming a hydration layer on the surface of the polymer material, which forms a steric effect on the microorganisms, thereby inhibiting the adhesion of the microorganisms, on the other hand, the adsorption of the phospholipid onto the zinc-based metal organic framework improves the stability of the phospholipid, avoids the influence of light, heat and humidity on the phospholipid, reduces the anti-bioadhesion performance, and the phosphate group contained in the phospholipid can adsorb and fix the migrated zinc ions of the zinc-based metal organic framework, forming a zinc-based coating on the surface of the material matrix, which has persistent anti-bioadhesion performance.

[0048] (2) In the technical scheme of the present application, the metal organic framework loaded with phosphorylcholine is reacted with oxidized bacterial cellulose, the metal organic framework loaded with phosphorylcholine is grafted onto the molecular chain of the oxidized bacterial cellulose, which is conducive to embedding the metal organic framework loaded with phosphorylcholine into the bacterial cellulose aerogel network; the modified oxidized bacterial cellulose, ferric chloride and tea polyphenol are mixed and reacted to form an aerogel structure with a three-dimensional network structure, on the one hand, the aerogel with a three-dimensional network structure can absorb and weaken external stress, avoiding the collapse of the metal organic framework under external force, affecting the antibioadhesion performance, on the other hand, the aerogel formed by tea polyphenol, modified oxidized bacterial cellulose and ferric chloride has a high crosslinking density, which can increase the mechanical properties of the polymer material, and the aerogel has high heat stability, which can be incorporated into the polymer material matrix through a melt extrusion process, thereby enhancing the antibioadhesion and mechanical properties of the polymer material.

[0049] (3) In the technical scheme of the present application, the composite aerogel is deposited on the surface of the pretreated carbon fiber to form a reinforcing filler, a rough structure is introduced on the surface of the carbon fiber, and the grooves in the rough structure are used to trap air to form air pockets, thereby reducing the contact area between the biological pollutants and the material surface and further improving the antibioadhesion performance of the material; the hydrophobic monomer and the hydrophilic monomer form an acrylate-based amphiphilic copolymer, which produces a dense hydration barrier on the surface of the material through hydrogen bonding and electrostatic interaction, thereby ensuring efficient antibioadhesion function, and the hydrophilic group can be combined with the reinforcing filler to make the reinforcing filler distributed on the surface of the material matrix, and the acrylate-based amphiphilic copolymer is compounded to produce a dense hydration barrier on the surface of the material matrix, thereby weakening the interaction between the biological pollutants and the material surface. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0051] The raw materials used in the embodiments of the present application are as follows, and all the reagents used are analytical grade.

[0052] The hydrophobic monomer is methyl methacrylate, the hydrophilic monomer is hydroxyethyl methacrylate, and the initiator is azobisisobutyronitrile.

[0053] The solvent is deionized water, and the high molecular polymer is polyvinyl chloride.

[0054] The bacterial cellulose is purchased from Hainan Yide Food Co., Ltd.

[0055] The carbon fiber has a length of 3 μm and a diameter of 0.4 μm.

[0056] The oxidized bacterial cellulose is prepared by the following steps:

[0057] 1.5 g of bacterial cellulose is added to 100 mL of deionized water, stirred uniformly, 0.4 g of sodium periodate is added, stirred uniformly, stirred at 25°C for 12 h at pH 7, the product is collected by centrifugation at 5000 r / min, the product is washed with deionized water for 3 times, and freeze-dried at -20°C for 12 h to obtain the oxidized bacterial cellulose.

[0058] The pretreated carbon fiber is prepared by the following steps:

[0059] 1.4 g of carbon fiber is added to 90 mL of Tris-HCl buffer solution with pH 8.5, stirred at 25°C and 2000 r / min for 20 min, 0.6 g of dopamine is added, stirred at 30°C and 2000 r / min for 2 h, filtered, washed with deionized water for 3 times, and dried in an oven at 70°C for 10 min to obtain the pretreated carbon fiber.

[0060] Example 1

[0061] An anti-bioadhesion high molecular material for filtering bag comprises the following raw materials in mass parts: 50 parts of methyl methacrylate, 55 parts of hydroxyethyl methacrylate, 80 parts of polyvinyl chloride, 5 parts of reinforcing filler, 120 parts of deionized water, and 1 part of azobisisobutyronitrile.

[0062] A preparation method of an anti-bioadhesion high molecular material for filtering bag comprises the following preparation steps:

[0063] S1. Methyl methacrylate, hydroxyethyl methacrylate, deionized water, and reinforcing filler are mixed, stirred at 600 r / min for 5 min, azobisisobutyronitrile is added, stirred at 60°C for 4 h, concentrated by rotary evaporation, precipitated with deionized water, filtered, and dried in an oven at 45°C for 4 h to obtain a composite acrylate-based amphoteric copolymer;

[0064] S2. The composite acrylate-based amphoteric copolymer and polyvinyl chloride are mixed, stirred at 600 r / min for 0.5 h, and granulated by melt extrusion to obtain the anti-bioadhesion high molecular material.

[0065] The melt extrusion is performed by using a melt extruder with a rotation speed of 150 rpm and an extrusion temperature of 165°C.

[0066] The reinforcing filler is prepared by the following steps:

[0067] A1. 1.6 g of zinc nitrate hexahydrate, 1 g of 2-amino benzothiazole and 2 g of 2-methyl imidazole were added into 75 mL of methanol, stirred uniformly, 1.3 g of sodium formate was added, nitrogen was introduced, reacted at 60℃ for 3 h, centrifuged at a speed of 8000 r / min, washed with methanol for 3 times, deionized water for 3 times, dried in an oven at 60℃ for 10 min, to obtain a zinc-based metal organic framework;

[0068] A2. 2 g of the zinc-based metal organic framework was added into 18 mL of a phosphatidylcholine solution, stirred uniformly, after negative pressure at-0.05 MPa, filtered, washed with deionized water for 3 times, freeze-dried at-20℃ for 10 h, to obtain a metal organic framework loaded with phosphatidylcholine;

[0069] A3. 0.4 g of oxidized bacterial cellulose was added into 45 mL of dimethyl sulfoxide, rotary evaporated at 50℃ to 25 mL of suspension, 1.6 mL of triethylamine was added, 1.2 g of the metal organic framework loaded with phosphatidylcholine was added, stirred uniformly, reacted at 0℃ for 20 h, ammonia water was added to adjust the pH to 9, continued to stir for 1 h, centrifuged at 6000 r / min for 5 min, freeze-dried at-20℃ for 20 h, to obtain modified oxidized bacterial cellulose;

[0070] A4. 3 g of the modified oxidized bacterial cellulose was added into 45 mL of deionized water, stirred uniformly, 2 g of tea polyphenol and 0.1 g of ferric chloride were added, stirred at 300 r / min for 1 h to form a gel, the gel was washed with deionized water for 3 times, freeze-dried at-20℃ for 24 h, to obtain a composite aerogel;

[0071] A5. 2 g of pretreated carbon fiber was added into 75 mL of ethanol, stirred uniformly, 1.1 g of the composite aerogel was added, stirred at 100 r / min for 20 min, stood for 1 h, filtered, washed with deionized water for 3 times, dried in an oven at 70℃ for 10 min, to obtain a reinforcing filler.

[0072] Example 2

[0073] An antibioadhesion high molecular material for filtering bag, comprising the following raw materials in mass parts: 55 parts of methyl methacrylate, 60 parts of hydroxyethyl methacrylate, 90 parts of polyvinyl chloride, 8 parts of reinforcing filler, 125 parts of deionized water, 1.5 parts of azobis isobutyronitrile;

[0074] A preparation method of an antibioadhesion high molecular material for filtering bag, comprising the following preparation steps:

[0075] S1. Mix methyl methacrylate, hydroxyethyl methacrylate, deionized water and reinforcing filler, stir at 650 r / min for 8 min, add azobisisobutyronitrile, stir at 70°C for 5 h, concentrate by rotary evaporation, precipitate with deionized water, filter, dry in an oven at 45°C for 4 h to obtain a composite acrylate-based amphoteric copolymer;

[0076] S2. Mix the composite acrylate-based amphoteric copolymer and polyvinyl chloride, stir at 650 r / min for 0.8 h, melt-extrude and granulate to obtain an antibioadhesion macromolecular material;

[0077] The melt-extrusion is performed using a melt-extruder at a rotation speed of 180 rpm and an extrusion temperature of 175°C.

[0078] The reinforcing filler is prepared by the following steps:

[0079] A1. Add 1.8 g of zinc nitrate hexahydrate, 1.5 g of 2-amino benzothiazole and 2.5 g of 2-methyl imidazole to 80 mL of methanol, stir until uniform, add 1.2 g of sodium formate, pass nitrogen gas, react at 65°C for 4 h, centrifuge at a speed of 8000 r / min, wash with methanol for 3 times, wash with deionized water for 3 times, dry in an oven at 60°C for 10 min to obtain a zinc-based metal organic framework;

[0080] A2. Add 2.5 g of the zinc-based metal organic framework to 20 mL of a phosphatidylcholine solution, stir until uniform, perform negative pressure at -0.05 MPa, filter, wash with deionized water for 3 times, freeze-dry at -20°C for 10 h to obtain a metal organic framework loaded with phosphatidylcholine;

[0081] A3. Add 0.5 g of oxidized bacterial cellulose to 50 mL of dimethyl sulfoxide, rotary evaporate at 50°C to 25 mL of suspension, add 1.7 mL of triethylamine, add 1.3 g of the metal organic framework loaded with phosphatidylcholine, stir until uniform, react at 1°C for 22 h, add ammonia water to adjust the pH to 10, continue to stir for 1.5 h, centrifuge at 6000 r / min for 5 min, freeze-dry at -20°C for 20 h to obtain modified oxidized bacterial cellulose;

[0082] A4. Add 4 g of the modified oxidized bacterial cellulose to 50 mL of deionized water, stir until uniform, add 2.2 g of tea polyphenol and 0.2 g of ferric chloride, stir at 350 r / min for 1.5 h to a gel, wash the gel with deionized water for 3 times, freeze-dry at -20°C for 24 h to obtain a composite aerogel;

[0083] A5. 2.5 g of pretreated carbon fiber was added to 80 mL of ethanol, stirred uniformly, 1.2 g of composite aerogel was added, stirred at 150 r / min for 25 min, and after standing for 1 h, it was filtered, washed with deionized water for 3 times, and dried in an oven at 70 DEG C for 10 min to obtain the reinforcing filler.

[0084] Example 3

[0085] An antibioadhesion high molecular material for filtering bag, comprising the following raw materials by mass fraction: 60 parts of methyl methacrylate, 65 parts of hydroxyethyl methacrylate, 100 parts of polyvinyl chloride, 10 parts of reinforcing filler, 130 parts of deionized water, and 2 parts of azobisisobutyronitrile;

[0086] A method for preparing an antibioadhesion high molecular material for filtering bag, comprising the following preparation steps:

[0087] S1. Methyl methacrylate, hydroxyethyl methacrylate, deionized water and reinforcing filler were mixed, stirred at 700 r / min for 10 min, azobisisobutyronitrile was added, and stirred at 80 DEG C for 6 h. After concentration by rotary evaporation, it was precipitated with deionized water, filtered, and dried in an oven at 45 DEG C for 4 h to obtain a composite acrylate-based amphoteric copolymer;

[0088] S2. The composite acrylate-based amphoteric copolymer and polyvinyl chloride were mixed, stirred at 700 r / min for 1 h, and granulated by melt extrusion to obtain an antibioadhesion high molecular material;

[0089] Wherein, the melt extrusion adopts a melt extruder, the rotation speed is 200 rpm, and the extrusion temperature is 185 DEG C.

[0090] The reinforcing filler is specifically prepared by the following steps:

[0091] A1. 2 g of zinc nitrate hexahydrate, 2 g of 2-amino benzothiazole and 3 g of 2-methyl imidazole were added to 85 mL of methanol, stirred uniformly, 1.3 g of sodium formate was added, nitrogen was introduced, and reacted at 70 DEG C for 5 h. After centrifugation at a speed of 8000 r / min, it was washed with methanol for 3 times, deionized water for 3 times, and dried in an oven at 60 DEG C for 10 min to obtain a zinc-based metal organic framework;

[0092] A2. 3 g of the zinc-based metal organic framework was added to 22 mL of phosphatidylcholine solution, stirred uniformly, and after negative pressure at -0.05 MPa, it was filtered, washed with deionized water for 3 times, and freeze-dried at -20 DEG C for 10 h to obtain a metal organic framework loaded with phosphatidylcholine;

[0093] A3. 0.6 g of oxidized bacterial cellulose was added to 55 mL of dimethyl sulfoxide, rotary evaporation was carried out at 50°C to 25 mL of suspension, 1.8 mL of triethylamine was added, 1.4 g of metal-organic framework loaded with phosphatidylcholine was added, stirred uniformly, stirred at 2°C for 24 h, ammonia water was added to adjust the pH to 11, continued to stir for 2 h, centrifuged at 6000 r / min for 5 min, freeze-dried at -20°C for 20 h, and modified oxidized bacterial cellulose was obtained;

[0094] A4. 5 g of modified oxidized bacterial cellulose was added to 55 mL of deionized water, stirred uniformly, 2.4 g of tea polyphenol and 0.3 g of ferric chloride were added, stirred at 400 r / min for 2 h to form a gel, the gel was washed with deionized water for 3 times, and freeze-dried at -20°C for 24 h to obtain a composite aerogel;

[0095] A5. 3 g of pretreated carbon fiber was added to 85 mL of ethanol, stirred uniformly, 1.3 g of composite aerogel was added, stirred at 200 r / min for 30 min, and stood for 1 h, then filtered, washed with deionized water for 3 times, and dried in an oven at 70°C for 10 min to obtain a reinforcing filler.

[0096] Comparative Example 1

[0097] An antibioadhesion high molecular material for filtering bag, comprising the following raw materials by mass fraction: 60 parts of methyl methacrylate, 65 parts of hydroxyethyl methacrylate, 100 parts of polyvinyl chloride, 10 parts of reinforcing filler, 130 parts of deionized water, and 2 parts of azobisisobutyronitrile;

[0098] A preparation method of an antibioadhesion high molecular material for filtering bag, comprising the following preparation steps:

[0099] S1. Methyl methacrylate, hydroxyethyl methacrylate, deionized water and reinforcing filler were mixed, stirred at 700 r / min for 10 min, azobisisobutyronitrile was added, stirred at 80°C for 6 h, concentrated by rotary evaporation, precipitated with deionized water, filtered, and dried in an oven at 45°C for 4 h to obtain a composite acrylate-based amphoteric copolymer;

[0100] S2. The composite acrylate-based amphoteric copolymer and polyvinyl chloride were mixed, stirred at 700 r / min for 1 h, and granulated by melt extrusion to obtain an antibioadhesion high molecular material;

[0101] Wherein, the melt extrusion adopts a melt extruder, the rotation speed is 200 rpm, and the extrusion temperature is 185°C.

[0102] The reinforcing filler is specifically prepared by the following steps:

[0103] A1. 2 g of zinc nitrate hexahydrate, 2 g of 2-amino benzothiazole and 3 g of 2-methyl imidazole were added into 85 mL of methanol, stirred uniformly, 1.3 g of sodium formate was added, nitrogen was introduced, reacted at 70 °C for 5 h, centrifuged at a speed of 8000 r / min, washed with methanol for 3 times, deionized water for 3 times, dried in an oven at 60 °C for 10 min, to obtain a zinc-based metal organic framework;

[0104] A2. 0.6 g of oxidized bacterial cellulose was added into 55 mL of dimethyl sulfoxide, rotary evaporated at 50 °C to 25 mL of suspension, 1.8 mL of triethylamine was added, 1.4 g of metal organic framework loaded with phosphatidylcholine was added, stirred uniformly, reacted at 2 °C for 24 h, the pH was adjusted to 11 by adding ammonia water, continued to stir for 2 h, centrifuged at 6000 r / min for 5 min, freeze-dried at -20 °C for 20 h, to obtain modified oxidized bacterial cellulose;

[0105] A3. 5 g of modified oxidized bacterial cellulose was added into 55 mL of deionized water, stirred uniformly, 2.4 g of tea polyphenol and 0.3 g of ferric chloride were added, stirred at 400 r / min for 2 h to form a gel, the gel was washed with deionized water for 3 times, freeze-dried at -20 °C for 24 h, to obtain a composite aerogel;

[0106] A4. 3 g of pretreated carbon fiber was added into 85 mL of ethanol, stirred uniformly, 1.3 g of composite aerogel was added, stirred at 200 r / min for 30 min, stood for 1 h, filtered, washed with deionized water for 3 times, dried in an oven at 70 °C for 10 min, to obtain a reinforcing filler.

[0107] Comparative Example 2

[0108] An antibioadhesion high molecular material for filtering bag, comprising the following raw materials in mass parts: 60 parts of methyl methacrylate, 65 parts of hydroxyethyl methacrylate, 100 parts of polyvinyl chloride, 10 parts of reinforcing filler, 130 parts of deionized water, 2 parts of azobisisobutyronitrile;

[0109] A preparation method of an antibioadhesion high molecular material for filtering bag, comprising the following preparation steps:

[0110] S1. Methyl methacrylate, hydroxyethyl methacrylate, deionized water and reinforcing filler were mixed, stirred at 700 r / min for 10 min, azobisisobutyronitrile was added, reacted and stirred at 80 °C for 6 h, concentrated by rotary evaporation, precipitated with deionized water, filtered, dried in an oven at 45 °C for 4 h, to obtain a composite acrylate-based amphoteric copolymer;

[0111] S2. The composite acrylate-based amphoteric copolymer and polyvinyl chloride are mixed, stirred at 700 r / min for 1 h, and granulated by melt extrusion to obtain an antibioadhesion high molecular material;

[0112] The melt extrusion is performed by using a melt extruder at a rotation speed of 200 rpm and an extrusion temperature of 185 DEG C.

[0113] The reinforcing filler is prepared by the following steps:

[0114] A1. 2 g of zinc nitrate hexahydrate, 2 g of 2-amino benzothiazole and 3 g of 2-methyl imidazole are added into 85 mL of methanol, stirred uniformly, 1.3 g of sodium formate is added, nitrogen is introduced, reaction is carried out at 70 DEG C for 5 h, centrifugation is carried out at a speed of 8000 r / min, washing is carried out with methanol for 3 times, washing is carried out with deionized water for 3 times, drying is carried out in a 60 DEG C oven for 10 min to obtain a zinc-based metal organic framework;

[0115] A2. 3 g of the zinc-based metal organic framework is added into 22 mL of a phosphatidylcholine solution, stirring is carried out uniformly, negative pressure is carried out at -0.05 MPa, filtration is carried out, washing is carried out with deionized water for 3 times, freeze drying is carried out at -20 DEG C for 10 h to obtain a phosphatidylcholine-loaded metal organic framework;

[0116] A3. 0.6 g of bacterial cellulose is added into 55 mL of dimethyl sulfoxide, rotary evaporation is carried out at 50 DEG C until 25 mL of suspension, 1.8 mL of triethylamine is added, 1.4 g of the phosphatidylcholine-loaded metal organic framework is added, stirring is carried out uniformly, reaction is carried out at 2 DEG C for 24 h, ammonia water is added to adjust the pH to 11, stirring is continued for 2 h, centrifugation is carried out at 6000 r / min for 5 min, freeze drying is carried out at -20 DEG C for 20 h to obtain modified bacterial cellulose;

[0117] A4. 5 g of the modified oxidized bacterial cellulose is added into 55 mL of deionized water, stirring is carried out uniformly, 2.4 g of tea polyphenol and 0.3 g of ferric chloride are added, stirring is carried out at 400 r / min for 2 h until gel, the gel is washed with deionized water for 3 times, freeze drying is carried out at -20 DEG C for 24 h to obtain a composite aerogel;

[0118] A5. 3 g of the pretreated carbon fiber is added into 85 mL of ethanol, stirring is carried out uniformly, 1.3 g of the composite aerogel is added, stirring is carried out at 200 r / min for 30 min, standing is carried out for 1 h, filtration is carried out, washing is carried out with deionized water for 3 times, drying is carried out in a 70 DEG C oven for 10 min to obtain a reinforcing filler.

[0119] Comparative Example 3

[0120] An antibioadhesion high molecular material for filtering bag, comprising the following raw materials by mass: 60 parts of methyl methacrylate, 65 parts of hydroxyethyl methacrylate, 100 parts of polyvinyl chloride, 10 parts of reinforcing filler, 130 parts of deionized water, and 2 parts of azobisisobutyronitrile;

[0121] A preparation method of an antibioadhesion high molecular material for filtering bag, comprising the following preparation steps:

[0122] S1. Methyl methacrylate, hydroxyethyl methacrylate, deionized water and reinforcing filler are mixed, stirred at 700 r / min for 10 min, azobisisobutyronitrile is added, stirred and reacted at 80℃ for 6 h, concentrated by rotary evaporation, precipitated with deionized water, filtered, dried in an oven at 45℃ for 4 h, to obtain a composite acrylate-based amphoteric copolymer;

[0123] S2. The composite acrylate-based amphoteric copolymer and polyvinyl chloride are mixed, stirred at 700 r / min for 1 h, and granulated by melt extrusion to obtain an antibioadhesion high molecular material;

[0124] Wherein, the melt extrusion adopts a melt extruder, the rotation speed is 200 rpm, and the extrusion temperature is 185℃.

[0125] The reinforcing filler is prepared by the following steps:

[0126] A1. 2g of zinc nitrate hexahydrate, 2g of 2-amino benzothiazole and 3g of 2-methyl imidazole are added to 85mL of methanol, stirred uniformly, 1.3g of sodium formate is added, nitrogen is introduced, reacted at 70℃ for 5h, centrifuged at a speed of 8000r / min, washed with methanol for 3 times, deionized water for 3 times, dried in an oven at 60℃ for 10min, to obtain a zinc-based metal organic framework;

[0127] A2. 3g of the zinc-based metal organic framework is added to 22mL of phospholipid solution, stirred uniformly, subjected to negative pressure at-0.05MPa, filtered, washed with deionized water for 3 times, freeze-dried at-20℃ for 10h, to obtain a metal organic framework loaded with phosphatidylcholine;

[0128] A3. 5g of the metal organic framework loaded with phosphatidylcholine is added to 55mL of deionized water, stirred uniformly, 2.4g of tea polyphenol and 0.3g of ferric chloride are added, stirred at 400r / min for 2h, washed with deionized water for 3 times, freeze-dried at-20℃ for 24h, to obtain a composite material;

[0129] A4. 3 g of pretreated carbon fiber was added to 85 mL of ethanol, stirred uniformly, 1.3 g of composite material was added, stirred at 200 r / min for 30 min, and then left to stand for 1 h. After filtration, the product was washed with deionized water for 3 times and dried in an oven at 70℃ for 10 min to obtain the reinforcing filler.

[0130] Comparative Example 4

[0131] An antibioadhesion macromolecular material for filter bag, comprising the following raw materials by mass fraction: 60 parts of methyl methacrylate, 65 parts of hydroxyethyl methacrylate, 100 parts of polyvinyl chloride, 10 parts of reinforcing filler, 130 parts of deionized water, and 2 parts of azobisisobutyronitrile.

[0132] A preparation method of an antibioadhesion macromolecular material for filter bag, comprising the following preparation steps:

[0133] S1. Methyl methacrylate, hydroxyethyl methacrylate, deionized water and reinforcing filler were mixed and stirred at 700 r / min for 10 min. Azobisisobutyronitrile was added and stirred at 80℃ for 6 h. After concentration by rotary evaporation, the product was precipitated with deionized water, filtered, and dried in an oven at 45℃ for 4 h to obtain a composite acrylate-based amphoteric copolymer.

[0134] S2. The composite acrylate-based amphoteric copolymer and polyvinyl chloride were mixed and stirred at 700 r / min for 1 h. The product was granulated by melt extrusion to obtain an antibioadhesion macromolecular material.

[0135] The melt extrusion was performed by using a melt extruder at a rotation speed of 200 rpm and an extrusion temperature of 185℃.

[0136] The reinforcing filler was prepared by the following steps:

[0137] A1. 2 g of zinc nitrate hexahydrate, 2 g of 2-amino benzothiazole and 3 g of 2-methyl imidazole were added to 85 mL of methanol, stirred uniformly, 1.3 g of sodium formate was added, nitrogen was introduced, and the mixture was reacted at 70℃ for 5 h. The product was centrifuged at a speed of 8000 r / min, washed with methanol for 3 times, washed with deionized water for 3 times, and dried in an oven at 60℃ for 10 min to obtain a zinc-based metal organic framework.

[0138] A2. 3 g of the zinc-based metal organic framework was added to 22 mL of phosphatidylcholine solution, stirred uniformly, and then subjected to negative pressure at -0.05 MPa. The product was filtered, washed with deionized water for 3 times, and freeze-dried at -20℃ for 10 h to obtain a metal organic framework loaded with phosphatidylcholine.

[0139] A3. 0.6 g of oxidized bacterial cellulose was added to 55 mL of dimethyl sulfoxide, rotary evaporation was carried out at 50°C to 25 mL of suspension, 1.8 mL of triethylamine was added, 1.4 g of metal organic framework loaded with phosphatidylcholine was added, stirred uniformly, stirred at 2°C for 24 h, ammonia water was added to adjust the pH to 11, continued to stir for 2 h, centrifuged at 6000 r / min for 5 min, freeze-dried at -20°C for 20 h, and modified oxidized bacterial cellulose was obtained;

[0140] A4. 5 g of modified oxidized bacterial cellulose was added to 55 mL of deionized water, 0.3 g of ferric chloride was added, stirred to gel, the gel was washed with deionized water for 3 times, freeze-dried at -20°C for 24 h, and a composite aerogel was obtained.

[0141] A5. 3 g of pretreated carbon fiber was added to 85 mL of ethanol, stirred uniformly, 1.3 g of composite aerogel was added, stirred at 200 r / min for 30 min, stood for 1 h, filtered, washed with deionized water for 3 times, and dried in an oven at 70°C for 10 min, and a reinforcing filler was obtained.

[0142] Comparative Example 5

[0143] An antibioadhesion high molecular material for filtering bag, comprising the following raw materials by mass fraction: 60 parts of methyl methacrylate, 65 parts of hydroxyethyl methacrylate, 100 parts of polyvinyl chloride, 10 parts of reinforcing filler, 130 parts of deionized water, and 2 parts of azobisisobutyronitrile;

[0144] A preparation method of an antibioadhesion high molecular material for filtering bag, comprising the following preparation steps:

[0145] S1. Methyl methacrylate, hydroxyethyl methacrylate, deionized water and reinforcing filler were mixed, stirred at 700 r / min for 10 min, azobisisobutyronitrile was added, stirred at 80°C for 6 h, concentrated by rotary evaporation, precipitated with deionized water, filtered, and dried in an oven at 45°C for 4 h, and a composite acrylate-based amphoteric copolymer was obtained;

[0146] S2. The composite acrylate-based amphoteric copolymer and polyvinyl chloride were mixed, stirred at 700 r / min for 1 h, and granulated by melt extrusion, and an antibioadhesion high molecular material was obtained;

[0147] Wherein, the melt extrusion adopts a melt extruder, the rotation speed is 200 rpm, and the extrusion temperature is 185°C.

[0148] The reinforcing filler is specifically prepared by the following steps:

[0149] A1. 2 g of zinc nitrate hexahydrate, 2 g of 2-amino benzothiazole and 3 g of 2-methyl imidazole were added into 85 mL of methanol, stirred uniformly, 1.3 g of sodium formate was added, nitrogen was introduced, and the reaction was carried out at 70°C for 5 h, centrifuged at a speed of 8000 r / min, washed with methanol for 3 times, deionized water for 3 times, and dried in an oven at 60°C for 10 min to obtain a zinc-based metal organic framework;

[0150] A2. 3 g of the zinc-based metal organic framework was added into 22 mL of a phospholipid solution, stirred uniformly, and after negative pressure at -0.05 MPa, filtered, washed with deionized water for 3 times, and freeze-dried at -20°C for 10 h to obtain a metal organic framework loaded with phosphatidylcholine;

[0151] A3. 0.6 g of oxidized bacterial cellulose was added into 55 mL of dimethyl sulfoxide, rotary evaporated at 50°C to 25 mL of suspension, 1.8 mL of triethylamine was added, 1.4 g of the metal organic framework loaded with phosphatidylcholine was added, stirred uniformly, and reacted at 2°C for 24 h, ammonia water was added to adjust the pH to 11, and stirred for another 2 h, centrifuged at 6000 r / min for 5 min, and freeze-dried at -20°C for 20 h to obtain modified oxidized bacterial cellulose;

[0152] A4. 5 g of the modified oxidized bacterial cellulose was added into 55 mL of deionized water, stirred uniformly, 2.4 g of tea polyphenol and 0.3 g of ferric chloride were added, stirred at 400 r / min for 2 h until gelling, the gel was washed with deionized water for 3 times, and freeze-dried at -20°C for 24 h to obtain a composite aerogel;

[0153] A5. 3 g of carbon fiber was added into 85 mL of ethanol, stirred uniformly, 1.3 g of the composite aerogel was added, stirred at 200 r / min for 30 min, and stood for 1 h, filtered, washed with deionized water for 3 times, and dried in an oven at 70°C for 10 min to obtain a reinforcing filler.

[0154] The anti-bioadhesion high molecular materials prepared in Examples 1-3 and Comparative Examples 1-5 were subjected to performance detection.

[0155] The anti-bioadhesion high molecular materials prepared above were subjected to performance detection after being injection molded into strips, wherein the injection molding pressure was 90 MPa, and the injection molding temperature was 280°C;

[0156] Mechanical property test: the sample was cut into a strip of 15 mm x 7 mm, and the breaking strength and breaking elongation of the sample were determined by using a UTM-Q422 type universal tensile tester according to ASTM standard D882-02. Before testing, the thickness of the sample was accurately measured by using a vernier caliper, and the test was carried out at a stretching speed of 2 mm / min, each group of samples was tested for 3 times, and the average value was taken.

[0157] Anti-adhesion experiment: after immersing the sample surface in 1 mL of E. coli / S. aureus solution for 2.5 h, the sample was taken out and gently washed, and the bacteria adhering to the surface were detached by ultrasonic method. The detached bacteria solution was diluted and plated for counting to obtain the total number of bacteria A. The adhesion rate of bacteria on the sample surface was determined by colony counting method (%). The anti-adhesion rate = (initial number of bacteria - A) / initial number of bacteria x 100%. Each group of samples was measured 5 times, and the average value was recorded.

[0158] Bactericidal experiment: after immersing the sample in 1 mL of E. coli / S. aureus solution for 2.5 h, the sample was taken out and gently washed, and then irradiated under visible light with a power of 10 W and a wavelength of 650 nm for 30 min. After ultrasonic detachment, the bacteria solution was diluted and plated for counting to obtain the total number of bacteria B. The total number of bacteria adhering to the sample obtained by the same treatment of the original substrate material, i.e. the sample of Comparative Example 1, was B. The bactericidal efficiency = (initial number of bacteria - B) / initial number of bacteria x 100%.

[0159] The test results are shown in Table 1 below.

[0160] Table 1 Performance detection of antibioadhesion high molecular materials prepared in Examples 1-3 and Comparative Examples 1-6

[0161]

[0162] As can be seen from the data in Table 1, the antibioadhesion high molecular materials prepared in Examples 1-3 have excellent antibioadhesion performance and mechanical properties.

[0163] In Comparative Example 1, the phosphatidylcholine-loaded metal-organic framework was replaced with a zinc-based metal-organic framework to prepare a reinforcing filler added to the antibioadhesion high molecular material, which had decreased antibioadhesion performance and mechanical properties. It is proved that phosphatidylcholine can preferentially adsorb water through electrostatic interaction to form a hydration layer on the surface of the high molecular material, which forms a steric effect on the microorganisms, thereby inhibiting the adhesion of microorganisms. In addition, the phosphatidylcholine contains a phosphate group that can adsorb and fix the zinc ions migrated from the zinc-based metal-organic framework to form a zinc-based coating on the surface of the material matrix, which has persistent antibioadhesion performance. Furthermore, phosphatidylcholine can react with oxidized bacterial cellulose to embed the phosphatidylcholine-loaded metal-organic framework into the bacterial cellulose aerogel network, thereby improving the mechanical properties.

[0164] The reinforcing filler prepared by replacing the oxidized bacterial cellulose with bacterial cellulose in the comparative example 2 is added to the anti-bioadhesion high polymer material, and the anti-bioadhesion performance and mechanical performance thereof are decreased, which proves that the oxidized bacterial cellulose can react with the metal organic framework loaded with phosphorylcholine, the metal organic framework loaded with phosphorylcholine is embedded into the bacterial cellulose aerogel network, can absorb and weaken external stress, avoid the collapse of the hole under the action of external force, affect the anti-bioadhesion performance, and the zinc-based metal organic framework can achieve the effect of preventing microbial adhesion.

[0165] The reinforcing filler prepared by replacing the modified oxidized bacterial cellulose with the metal organic framework loaded with phosphorylcholine in the comparative example 3 is added to the anti-bioadhesion high polymer material, and the anti-bioadhesion performance and mechanical performance thereof are decreased, which proves that the three-dimensional network structure aerogel structure of the oxidized bacterial cellulose skeleton can absorb and weaken external stress, avoid the collapse of the hole under the action of external force, affect the anti-bioadhesion performance, and the formed bacterial cellulose aerogel is beneficial to introducing a rough structure on the surface of the carbon fiber, and improving the anti-bioadhesion performance of the material.

[0166] The reinforcing filler prepared by not adding the tea polyphenol in the comparative example 4 is added to the anti-bioadhesion high polymer material, and the mechanical performance thereof is decreased, which proves that the tea polyphenol and the ferric chloride can increase the crosslinking density of the aerogel and increase the mechanical performance of the high polymer material.

[0167] The reinforcing filler prepared by replacing the pretreated carbon fiber with the carbon fiber in the comparative example 5 is added to the anti-bioadhesion high polymer material, and the anti-bioadhesion performance thereof is decreased, which proves that the composite aerogel is deposited on the surface of the pretreated carbon fiber to form the reinforcing filler, a rough structure is introduced on the surface of the carbon fiber, air is intercepted in the groove in the rough structure, and thus an air pocket is formed to reduce the contact area between the biological pollutants and the surface of the material, and further improve the anti-bioadhesion performance of the material.

[0168] In the description of the specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0169] The above is only an example and description of the present application, and those skilled in the art can make various modifications or supplements or use similar ways to replace the described specific embodiments, as long as they do not deviate from the scope defined by the present application, which shall belong to the protection scope of the present application.

Claims

1. An antibioadhesive polymeric material for filter bags, characterized in that, The raw materials include the following components by mass: hydrophobic monomer 50-60 parts, hydrophilic monomer 55-65 parts, high molecular polymer 80-100 parts, reinforcing filler 5-10 parts, solvent 120-130 parts, and initiator 1-2 parts; The reinforcing filler is obtained by loading phosphatidylcholine on a metal organic framework, reacting with oxidized bacterial cellulose, and then mixing and reacting with ferric chloride and tea polyphenol on the surface of pretreated carbon fiber; The metal organic framework loaded with phosphatidylcholine is obtained by mixing and reacting zinc nitrate hexahydrate, 2-amino benzothiazole and 2-methyl imidazole, and then mixing with a phosphatidylcholine solution; The reinforcing filler is specifically prepared by the following steps: A1. zinc nitrate hexahydrate, 2-amino benzothiazole and 2-methyl imidazole are added into methanol, stirred uniformly, sodium formate is added, nitrogen is introduced, and the mixture is reacted at 60-70℃ for 3-5h, centrifuged, washed, and dried to obtain a zinc-based metal organic framework; A2. the zinc-based metal organic framework is added into a phosphatidylcholine solution, stirred uniformly, filtered after negative pressure, washed, and dried to obtain a metal organic framework loaded with phosphatidylcholine; A3. oxidized bacterial cellulose is added into dimethyl sulfoxide, rotary evaporated, and then triethylamine and the metal organic framework loaded with phosphatidylcholine are added, stirred uniformly, and reacted at 0-2℃ for 20-24h, ammonia water is added to adjust the pH to 9-11, and the mixture is continuously stirred for 1-2h, centrifuged, and freeze-dried to obtain modified oxidized bacterial cellulose; A4. the modified oxidized bacterial cellulose is added into deionized water, stirred uniformly, and then tea polyphenol and ferric chloride are added, and the mixture is stirred at 300-400r / min for 1-2h until it becomes gelatinous, the gelatinous product is washed, freeze-dried to obtain a composite aerogel; A5. pretreated carbon fiber is added into ethanol, stirred uniformly, and then the composite aerogel is added, and the mixture is stirred at 100-200r / min for 20-30min, filtered, washed, and dried to obtain the reinforcing filler.

2. The anti-bioadhesive polymeric material for a filter bag according to claim 1, wherein In step A1, the amount ratio of zinc nitrate hexahydrate, 2-amino benzothiazole, 2-methyl imidazole, methanol and sodium formate is (1.6-2)g:(1-2)g:(2-3)g:(75-85)mL:(1.1-1.3)g.

3. The anti-bioadhesive polymeric material for filter bags according to claim 1, characterized in that, In step A2, the amount ratio of the zinc-based metal organic framework and the phosphatidylcholine solution is (2-3)g:(18-22)mL.

4. The anti-bioadhesive polymeric material for a filter bag according to claim 1, wherein In step A3, the amount ratio of oxidized bacterial cellulose, dimethyl sulfoxide, triethylamine and the metal organic framework loaded with phosphatidylcholine is (0.4-0.6)g:(45-55)mL:(1.5-1.7)mL:(1.2-1.4)g.

5. The anti-bioadhesive polymeric material for filter bags according to claim 1, characterized in that, In step A4, the amount ratio of the modified oxidized bacterial cellulose, deionized water, tea polyphenol and ferric chloride is (3-5)g:(45-55)mL:(2-2.4)g:(0.1-0.3)g.

6. The anti-bioadhesive polymeric material for filter bags according to claim 1, characterized in that, In step A5, the amount ratio of pretreated carbon fiber, ethanol and composite aerogel is (2-3)g:(75-85)mL:(1.1-1.3)g.

7. The anti-bioadhesive polymeric material for filter bags according to claim 1, characterized in that, The phosphatidylcholine solution is specifically prepared by the following steps: Choline chloride is added into dimethyl sulfoxide, rotary evaporation is carried out, then diphenyl phosphite and pyridine are added, stirring is carried out at room temperature for 3-5 h, then rotary evaporation is carried out, and a choline phosphate solution is obtained.

8. The anti-bioadhesive polymeric material for a filter bag according to claim 7, wherein The choline chloride, dimethyl sulfoxide, diphenyl phosphite and pyridine are used in a ratio of (3-3.4) g:(75-85) mL:(2-3) mL:(4-6) mL.

9. A process for the preparation of the antibioadhesive polymeric material for filter bags according to any one of claims 1 to 8, characterized by, The preparation comprises the following steps: S1. Hydrophobic monomers, hydrophilic monomers, a solvent and reinforcing fillers are mixed, stirring is carried out at 600-700 r / min for 5-10 min, an initiator is added, stirring is carried out at 60-80 ℃ for 4-6 h, concentration is carried out through rotary evaporation, then precipitation is carried out, filtration is carried out, and drying is carried out, so that a composite acrylate-based amphoteric copolymer is obtained; S2. The composite acrylate-based amphoteric copolymer and a high molecular polymer are mixed, stirring is carried out at 600-700 r / min for 0.5-1 h, and melt extrusion granulation is carried out, so that an antibioadhesion high molecular material is obtained.

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