Antistatic antibacterial seaweed charcoal-based sponge and preparation method thereof
By depositing graphene on the surface of seaweed charcoal and cross-linking it with functionalized complexes to form a gel structure, the problems of insufficient environmental protection and antistatic properties of sponge materials are solved, achieving long-term antibacterial and antistatic effects, and improving the service life and user experience of sponges.
Patent Information
- Application Number
- CN202511520182.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-23
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2045-10-23
AI Technical Summary
Existing sponge materials are poor in terms of environmental performance, flame retardancy and antistatic properties, and physically mixed antibacterial substances cannot effectively exert their antibacterial effects for a long time.
By depositing graphene on the surface of seaweed charcoal to form graphene/seaweed charcoal, and then cross-linking it with functionalized complexes to form a gel structure, the sponge is endowed with good antibacterial and antistatic properties, and bacterial growth is prevented through photocatalysis.
The prepared antistatic and antibacterial seaweed carbon-based sponge has good antibacterial, antistatic and long-term photocatalytic properties, which can effectively prevent bacterial growth, enhance service life, and regulate absorption and evaporation efficiency when skin sweat changes, keeping it dry to the touch.
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of sponge materials, and particularly relates to an antistatic and antibacterial seaweed carbon-based sponge and a preparation method thereof. BACKGROUND
[0002] Sponge is a kind of porous material with good water absorption and can be used for cleaning articles. The sponge commonly used by people is made of wood cellulose fiber or foamed plastic polymer. In addition, there are natural sponges made of sponges, and most of the natural sponges are used for body cleaning or painting. In addition, there are three types of synthetic sponges made of other materials, which are low-density polyether (non-water-absorbing sponge), polyvinyl alcohol (high water-absorbing material without obvious pores) and polyester. The existing industrial sponge has poor environmental protection performance, flame retardance and antistatic performance.
[0003] The Chinese patent application with the publication number CN105670190A discloses a mildew-proof sponge material and a preparation method thereof. In the scheme, the mildew-proof sponge material is prepared by using polyvinyl alcohol aqueous solution as the main raw material and adding triphenylethyl phenol polyoxyethylene ether, sodium alginate, sorbitol fatty alcohol ester, glutaraldehyde, polyvinyl butyral, sodium dipyvalyl sulfosuccinate, sodium bicarbonate, sodium silicate, azobisdimethyl isobutyronitrile and carbon black. The prepared mildew-proof sponge material has good mechanical strength and resilience and also has good mildew-proof and antibacterial effects. However, the physical mixing of the antibacterial substances cannot effectively play a long-term role. SUMMARY
[0004] The application aims to provide an antistatic and antibacterial seaweed carbon-based sponge and a preparation method thereof. Graphene is deposited on the surface of seaweed carbon to obtain graphene / seaweed carbon, and a gel with antibacterial performance is loaded on the surface. The functional complex with a core-shell structure is crosslinked in the gel structure, which can further endow the gel with excellent strength, good, stable and long-term photocatalytic properties, and can cooperate with seaweed carbon to play antibacterial properties and avoid the breeding of bacteria.
[0005] The purpose of the application can be achieved by the following technical scheme.
[0006] A preparation method of an antistatic and antibacterial seaweed carbon-based sponge comprises the following steps.
[0007] Step one: dry seaweed into seaweed powder, sieve the seaweed powder to obtain pretreated seaweed powder, and calcine the pretreated seaweed powder under nitrogen to obtain seaweed carbon.
[0008] Step two: obtain modified graphene by nucleophilic substitution of the carboxyl group of graphene with the amino group of gamma-aminopropyl triethoxysilane, and then bond the graphene with the seaweed carbon after hydrolysis in an ethanol solution to obtain graphene / seaweed carbon.
[0009] Step three: hydrothermal coordination of 4-vinylbenzoic acid as ligand with titanium tetrachloride to obtain a functional complex, and then surface polymerization of a gel containing the functional complex on a graphene / algal carbon carrier to obtain an antistatic and antibacterial algal carbon-based sponge.
[0010] Further, the specific preparation steps of the algal carbon are as follows:
[0011] The seaweed is dried to obtain seaweed powder, which is sieved to a fineness of 100-120 meshes using a vibrating screen machine, and dried in a forced air drying oven at 105-110 DEG C for 24-26 h to obtain pretreated seaweed powder. The pretreated seaweed powder is placed in a reaction kettle, nitrogen gas is introduced at a flow rate of 160-170 cm / min for 30-40 min, and heated to 500-520 DEG C at a rate of 5-7 DEG C / min for 1-2 h, and then naturally cooled to obtain algal carbon.
[0012] Further, the specific preparation steps of the modified graphene are as follows:
[0013] The graphene and ethanol are added to the reaction kettle, stirred at 20-25 DEG C and 500-600 r / min for 10-20 min under a nitrogen atmosphere, then N,N-diisopropylethylamine and O-benzotriazole-tetramethyl urea hexafluorophosphate are added and stirred for 3-5 min, then gamma-aminopropyl triethoxysilane is added and the reaction is continued for 1-2 h, the product is filtered, washed with ethanol and isopropyl alcohol 2-3 times respectively, and vacuum dried at 60-80 DEG C for 1-2 h to obtain the modified graphene.
[0014] Further, the use amount ratio of graphene, ethanol, N,N-diisopropylethylamine, O-benzotriazole-tetramethyl urea hexafluorophosphate and gamma-aminopropyl triethoxysilane is 20-30 g:1-2 L:0.125-0.15 g:0.1-0.5 g:15-20 mL.
[0015] Further, the specific preparation steps of the graphene / algal carbon are as follows:
[0016] The modified graphene and an ethanol solution with a mass fraction of 50-55% are added to the reaction kettle, stirred at 20-25 DEG C and 500-600 r / min for 10-20 min, the pH value is adjusted to 3-4 with hydrochloric acid, then the algal carbon is added and the reaction is continued for 2-3 h, the product is filtered, washed with anhydrous ethanol and deionized water 2-4 times respectively, and vacuum dried at 60-70 DEG C for 1-2 h to obtain the graphene / algal carbon.
[0017] Further, the use amount ratio of modified graphene, ethanol solution and algal carbon is 22-25 g:800-900 mL:12-15 g.
[0018] Further, the specific preparation steps of the functional complex are as follows:
[0019] The 4-vinylbenzoic acid, vinyl POSS and N,N-dimethylformamide solution are added into a polytetrafluoroethylene lining autoclave, stirred at 20-25 DEG C and 500-600 r / min for 30-40 min, then the titanium tetrachloride is added, heated to 120-130 DEG C, and the reaction is continued for 24-26 h, and then the mixture is naturally cooled to room temperature, filtered, and the filter cake is washed with a methanol solution and deionized water for 2-4 times, and vacuum dried at 60-70 DEG C for 1-2 h to obtain the functional complex.
[0020] Further, the 4-vinylbenzoic acid, vinyl POSS, N,N-dimethylformamide solution and titanium tetrachloride are used in a ratio of 15-20 g: 10-12 g: 200-300 mL: 10-12 g.
[0021] Further, the specific preparation steps of the antistatic and antibacterial type seaweed carbon-based sponge are as follows:
[0022] The graphene / seaweed carbon, hydroxypropyl acrylate, ethylene glycol methyl ether are added into a reaction kettle, stirred at 70-80 DEG C and 500-600 r / min for 10-20 min, and then the initiator azobisisobutyronitrile and the functional complex are added under a nitrogen atmosphere, and the mixture is continuously stirred for 20-30 min, then the acrylic acid is added, and the mixture is continuously stirred for 2-3 h, and then the polyethyleneimine is added, and the mixture is continuously stirred for 20-30 min, and then the product is filtered, and the product is washed with anhydrous ethanol and deionized water for 2-3 times, and vacuum dried at 60-80 DEG C for 1-2 h to obtain the antistatic and antibacterial type seaweed carbon-based sponge.
[0023] Further, the graphene / seaweed carbon, hydroxypropyl acrylate, ethylene glycol methyl ether, azobisisobutyronitrile, functional complex, acrylic acid and polyethyleneimine are used in a ratio of 10-12 g: 3.2-3.4 g: 40-42 mL: 0.1-0.2 g: 1-2 g: 7-8 g: 3-4 mL.
[0024] The beneficial effects of the present application are as follows:
[0025] 1. The antistatic and antibacterial type seaweed carbon-based sponge prepared by the present application has good antibacterial and antistatic properties, good, stable and long-term photocatalytic properties, and can avoid the growth of bacteria when applied to fabrics.
[0026] 2. The anti-static and antibacterial type seaweed carbon-based sponge of the present application is prepared by depositing graphene on the surface of seaweed carbon to obtain graphene / seaweed carbon, and then using the graphene / seaweed carbon as a carrier to load a gel structure made of hydroxypropyl acrylate, ethylene glycol methyl ether, functional complex, acrylic acid and polyethylene imine on the surface, and the functional complex with a core-shell structure is crosslinked in the gel structure, which can further impart excellent strength to the gel, the sheet structure of graphene can increase the overall strength of seaweed carbon and increase the service life, and graphene can impart anti-static property to the overall material.
[0027] 3. The functional complex of the present application has a core-shell structure, with the functional complex as the shell layer and vinyl POSS as the core layer, and the vinyl in the structure can act as an initiation site and participate in the crosslinking of the gel, which can increase the strength and stability of the gel, the functional complex has good photocatalytic property, which can cooperate with the antibacterial property of seaweed carbon to avoid the breeding of bacteria, and the gel has pH responsiveness, when the local pH value increases due to the increase of skin sweat, the gel swells and the porosity increases, enhancing the absorption and evaporation efficiency of the fabric to sweat and avoiding stuffiness and stickiness, when the skin is dry and the pH value returns to weak acidity, the gel shrinks, keeping the fabric dry and comfortable, reducing the discomfort caused by excessive water absorption, and the water absorption and swelling of the gel can effectively fill the small defects existing in graphene and seaweed carbon. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination 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.
[0029] Embodiment 1: A preparation method of an anti-static and antibacterial type seaweed carbon-based sponge, comprising the following steps:
[0030] S1: Dry seaweed to obtain seaweed powder, screen to 100 mesh fineness using a vibrating screen machine, dry in a forced air drying oven at 105℃ for 24h to obtain pretreated seaweed powder, place the pretreated seaweed powder in a reaction kettle, pass nitrogen gas at a flow rate of 160cm / min for 30min, heat to 500℃ at a rate of 5℃ / min and keep for 1h, and then naturally cool to obtain seaweed carbon.
[0031] S2: 20 g of graphene and 1 L of ethanol were added to a reaction kettle, stirred at 20℃ and 500 r / min for 10 min under a nitrogen atmosphere, then 0.125 g of N,N-diisopropylethylamine and 0.1 g of O-benzotriazole-tetramethyl urea hexafluorophosphate were added and stirred for 3 min, then 15 mL of γ-aminopropyl triethoxysilane was added and stirred for 1 h, the product was filtered, washed with ethanol and isopropyl alcohol for 2 times respectively, and vacuum dried at 60℃ for 1 h to obtain modified graphene.
[0032] S3: 22 g of modified graphene and 800 mL of 50% ethanol solution were added to a reaction kettle, stirred at 20℃ and 500 r / min for 10 min, the pH value was adjusted to 3 with hydrochloric acid, then 12 g of seaweed carbon was added and stirred for 2 h, the product was filtered, washed with anhydrous ethanol and deionized water for 2 times respectively, and vacuum dried at 60℃ for 1 h to obtain graphene / seaweed carbon.
[0033] S4: 15 g of 4-vinylbenzoic acid, 10 g of vinyl POSS and 200 mL of N,N-dimethylformamide solution were added to a polytetrafluoroethylene lined autoclave, stirred at 20℃ and 500 r / min for 30 min, then 10 g of titanium tetrachloride was added, heated to 120℃, and reacted for 24 h, then naturally cooled to room temperature, the filter cake was washed with methanol solution and deionized water for 2 times respectively, and vacuum dried at 60℃ for 1 h to obtain a functional complex.
[0034] S5: 10 g of graphene / seaweed carbon, 3.2 g of hydroxypropyl acrylate, 40 mL of ethylene glycol methyl ether were added to a reaction kettle, stirred at 70℃ and 500 r / min for 10 min under a nitrogen atmosphere, then 0.1 g of initiator azobisisobutyronitrile and 1 g of functional complex were added, stirred for 20 min, then 7 g of acrylic acid was added, stirred for 2 h, then 3 mL of polyethyleneimine was added, stirred for 20 min, the product was filtered, washed with anhydrous ethanol and deionized water for 2 times respectively, and vacuum dried at 60℃ for 1 h to obtain an antistatic and antibacterial type seaweed carbon-based sponge.
[0035] Example 2: A preparation method of an antistatic and antibacterial type seaweed carbon-based sponge, comprising the following steps:
[0036] S1: seaweed was dried to obtain seaweed powder, which was sieved to 110 mesh fineness using a vibrating sieve machine, and dried in a forced air drying oven at 107.5℃ for 25 h to obtain pretreated seaweed powder, which was placed in a reaction kettle, nitrogen was introduced at a flow rate of 165 cm / min for 35 min, heated to 510℃ at a rate of 6℃ / min and kept for 1.5 h, and then naturally cooled to obtain seaweed carbon.
[0037] S2: 25 g graphene and 1.5 L ethanol were added into a reaction kettle, stirred at 22.5℃ and 550 r / min for 15 min under nitrogen atmosphere, then 0.1375 g N,N-diisopropylethylamine and 0.3 g O-benzotriazole-tetramethyluronium hexafluorophosphate were added and stirred for 4 min, 17.5 mL γ-aminopropyltriethoxysilane was added and stirred for 1.5 h, the product was filtered, washed with ethanol and isopropyl alcohol for 2.5 times respectively, and vacuum dried at 70℃ for 1.5 h to obtain modified graphene.
[0038] S3: 23.5 g modified graphene and 850 mL ethanol solution with a mass fraction of 52.5% were added into a reaction kettle, stirred at 22.5℃ and 550 r / min for 15 min, the pH value was adjusted to 3.5 with hydrochloric acid, then 13.5 g seaweed carbon was added and stirred for 2.5 h, the product was filtered, washed with anhydrous ethanol and deionized water for 3 times respectively, and vacuum dried at 65℃ for 1.5 h to obtain graphene / seaweed carbon.
[0039] S4: 17.5 g 4-vinylbenzoic acid, 11 g vinyl POSS and 250 mL N,N-dimethylformamide solution were added into a polytetrafluoroethylene-lined autoclave, stirred at 22.5℃ and 550 r / min for 35 min, then 11 g titanium tetrachloride was added, heated to 125℃ and reacted for 25 h, naturally cooled to room temperature, the filter cake was washed with methanol solution and deionized water for 3 times respectively, and vacuum dried at 65℃ for 1.5 h to obtain a functional complex.
[0040] S5: 11 g graphene / seaweed carbon, 3.3 g hydroxypropyl acrylate, 41 mL ethylene glycol methyl ether were added into a reaction kettle, stirred at 75℃ and 550 r / min for 15 min under nitrogen atmosphere, then 0.15 g initiator azobisisobutyronitrile and 1.5 g functional complex were added, stirred for 25 min, then 7.5 g acrylic acid was added, stirred for 2.5 h, 3.5 mL polyethyleneimine was added, stirred for 25 min, the product was filtered, washed with anhydrous ethanol and deionized water for 2.5 times respectively, and vacuum dried at 70℃ for 1.5 h to obtain an antistatic and antibacterial type seaweed carbon-based sponge.
[0041] Example 3: A preparation method of an antistatic and antibacterial type seaweed carbon-based sponge, comprising the following steps:
[0042] S1: Dry seaweed to obtain seaweed powder, sieve to 120 mesh fineness using a vibrating screen machine, dry in a forced air drying oven at 110℃ for 26h, obtain pretreated seaweed powder, place the pretreated seaweed powder in a reaction kettle, pass nitrogen gas at a flow rate of 170cm / min for 40min, heat to 520℃ at a rate of 7℃ / min and maintain for 2h, naturally cool, obtain seaweed charcoal.
[0043] S2: Add 30g graphene and 2L ethanol into a reaction kettle, stir at 25℃ and 600r / min for 20min under nitrogen atmosphere, then add 0.15g N,N-diisopropylethylamine and 0.5g O-benzotriazole-tetramethyluronium hexafluorophosphate and continue to stir for 5min, then add 20mL γ-aminopropyltriethoxysilane and continue to stir for 2h, filter, wash the product with ethanol and isopropyl alcohol for 3 times respectively, vacuum dry at 80℃ for 2h, obtain modified graphene.
[0044] S3: Add 25g modified graphene and 900mL 55% mass fraction ethanol solution into a reaction kettle, stir at 25℃ and 600r / min for 20min, adjust the pH value to 4 with hydrochloric acid, then add 15g seaweed charcoal and continue to stir for 3h, filter, wash the product with anhydrous ethanol and deionized water for 4 times respectively, vacuum dry at 70℃ for 2h, obtain graphene / seaweed charcoal.
[0045] S4: Add 20g 4-vinylbenzoic acid, 12g vinyl POSS and 300mL N,N-dimethylformamide solution into a polytetrafluoroethylene lined autoclave, stir at 25℃ and 600r / min for 40min, then add 12g titanium tetrachloride, heat to 130℃ and continue to react for 26h, naturally cool to room temperature, filter, wash the filter cake with methanol solution and deionized water for 4 times respectively, vacuum dry at 70℃ for 2h, obtain functional complex.
[0046] S5: Add 12g graphene / seaweed charcoal, 3.4g hydroxypropyl acrylate, 42mL ethylene glycol methyl ether into a reaction kettle, stir at 80℃ and 600r / min for 20min under nitrogen atmosphere, then add 0.2g initiator azobisisobutyronitrile and 2g functional complex, continue to stir for 30min, then add 8g acrylic acid, continue to stir for 3h, then add 4mL polyethyleneimine, continue to stir for 30min, filter, wash the product with anhydrous ethanol and deionized water for 3 times respectively, vacuum dry at 80℃ for 2h, obtain antistatic and antibacterial type seaweed charcoal based sponge.
[0047] Comparative Example 1: On the basis of Example 3, replace the modified graphene in step S3 with the raw material graphene in step S2.
[0048] Comparative Example 2: On the basis of Example 3, the vinyl POSS in step S4 is removed.
[0049] Comparative Example 3: On the basis of Example 3, the functional complex in step S5 is replaced by the vinyl POSS in step S4.
[0050] The anti-static and antibacterial type seaweed carbon-based sponges obtained in Examples 1-3 and Comparative Examples 1-3 are subjected to performance testing, and the mechanical properties, air permeability, antibacterial properties and yellowing resistance of the anti-static and antibacterial type seaweed carbon-based sponges are determined according to GB / T6344-2008, GB / T6670-1997, GB / T10808-2006, ASTMD3574, GB / T31402-2015 and HG-T 3689-2014, respectively. The results are shown in Table 1:
[0051] Table 1 Performance test table of anti-static and antibacterial type seaweed carbon-based sponge
[0052] Item Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Tensile strength (KPa) 63.2 64.1 64.5 50.3 44.8 55.6 Elongation at break (%) 178.2 179.3 80.1 152.6 141.5 161.8 Bacteriostatic rate (%) 91.2 92.2 92.8 85.4 77.8 61.2 Yellowing resistance grade 5 5 5 5 5 3
[0053] As can be seen from Table 1, the tensile strength, elongation at break, antibacterial rate and yellowing resistance of the anti-static and antibacterial type seaweed carbon-based sponges obtained in Examples 1-3 are significantly better than those of the comparative examples, indicating that the anti-static and antibacterial type seaweed carbon-based sponges prepared by the present application have good antibacterial and anti-static properties, good, stable and long-term photocatalytic properties, and can avoid the growth of bacteria when applied to fabrics.
[0054] Comparative Example 1: On the basis of Example 3, the modified graphene in step S3 is replaced by the raw material graphene in step S2. In the original scheme, the modified graphene in step S2 is modified by γ-aminopropyl triethoxysilane. The amino group of the silane coupling agent forms a chemical bond with the carboxyl group on the surface of the seaweed carbon, improving the interfacial bonding force between the graphene and the seaweed carbon, while avoiding graphene aggregation, ensuring structural integrity. The raw material graphene has no surface modification, is prone to aggregation and only has physical contact with the seaweed carbon, resulting in internal structural faults in the sponge, a decrease in tensile strength and elongation at break, a significant reduction in service life, and a decrease in air permeability due to the aggregation of graphene blocking the porous channels of the seaweed carbon. In addition, the poor interface bonding leads to uneven pore structure.
[0055] Comparative Example 2: On the basis of Example 3, the vinyl POSS in step S4 is removed, and the overall strength of the sponge is seriously deteriorated. In the original scheme, the functional complex is a core-shell structure, in which the vinyl of the vinyl POSS can be used as an initiation site to form a strong cross-linking bond with gel raw materials such as acrylic acid and hydroxypropyl acrylate, thereby improving the stability of the gel structure. After the removal of the vinyl POSS, the functional complex has no core layer support and cannot participate in gel cross-linking. The functional complex is only weakly adsorbed and combined with the gel, resulting in a decrease in tensile strength and elongation at break. Incomplete gel cross-linking leads to loose pore structure, and although the loose structure increases the air permeability, the low strength does not meet the long-term application requirements. The incomplete structure of the functional complex leads to unstable loading of the functional complex, which is easily detached from the surface of the gel, loses the photocatalytic auxiliary antibacterial effect, and reduces the inhibition rate, thereby failing to effectively inhibit bacterial growth.
[0056] Comparative Example 3: On the basis of Example 3, the functional complex in step S5 is replaced with the vinyl POSS in step S4. In the original scheme, the shell layer of the functional complex is the key to antibacterial performance, and the photocatalytic performance of the functional complex can destroy the bacterial cell membrane to assist the algal carbon in achieving efficient antibacterial performance. After being replaced with pure vinyl POSS, there is no functional complex component, the inhibition rate decreases, and the demand for resisting bacterial growth cannot be met, which easily leads to bacterial adhesion on the surface of the sponge, clogging of the pores, loss of adsorption capacity, and a decrease in tensile strength and elongation at break. Long-term use is prone to deformation.
[0057] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application.
Claims
1. A method for preparing an antistatic antibacterial type seaweed charcoal-based sponge, characterized by, Comprising the following steps: Step one: dry seaweed into seaweed powder, sieve to get pretreated seaweed powder, calcine the pretreated seaweed powder under nitrogen to get seaweed carbon; Step two: get modified graphene by nucleophilic substitution of carboxyl group of graphene with amino group of gamma-aminopropyl triethoxysilane, bond with seaweed carbon after hydrolysis in ethanol solution to get graphene / seaweed carbon; Step three: get functional complex by hydrothermal coordination of 4-vinylbenzoic acid as ligand with titanium tetrachloride, then polymerize gel containing functional complex on the surface of graphene / seaweed carbon carrier to get antistatic and antibacterial type seaweed carbon-based sponge; The specific preparation steps of the modified graphene are as follows: Put graphene and ethanol into the reaction kettle, stir under the conditions of nitrogen atmosphere, 20-25 DEG C and 500-600 r / min for 10-20 min, then add N, N-diisopropylethylamine and O-benzotriazole-tetramethyl urea hexafluorophosphate and continue to stir for 3-5 min, then add gamma-aminopropyl triethoxysilane and continue to stir for 1-2 h, filter, wash the product with ethanol and isopropyl alcohol for 2-3 times respectively, and vacuum dry at 60-80 DEG C for 1-2 h to obtain modified graphene; The specific preparation steps of the graphene / seaweed carbon are as follows: Put modified graphene and ethanol solution with a mass fraction of 50-55% into the reaction kettle, stir under the conditions of 20-25 DEG C and 500-600 r / min for 10-20 min, adjust the pH value to 3-4 with hydrochloric acid, then add seaweed carbon and continue to stir for 2-3 h, filter, wash the product with anhydrous ethanol and deionized water for 2-4 times respectively, and vacuum dry at 60-70 DEG C for 1-2 h to obtain graphene / seaweed carbon; The specific preparation steps of the functional complex are as follows: Put 4-vinylbenzoic acid, vinyl POSS and N, N-dimethylformamide solution into a polytetrafluoroethylene-lined autoclave, stir under the conditions of 20-25 DEG C and 500-600 r / min for 30-40 min, then add titanium tetrachloride, heat to 120-130 DEG C, continue to react for 24-26 h, naturally cool to room temperature, filter, wash the filter cake with methanol solution and deionized water for 2-4 times respectively, and vacuum dry at 60-70 DEG C for 1-2 h to obtain functional complex; The amount ratio of 4-vinylbenzoic acid, vinyl POSS, N, N-dimethylformamide solution and titanium tetrachloride is 15-20 g:10-12 g:200-300 mL:10-12 g; The specific preparation steps of the antistatic and antibacterial type seaweed carbon-based sponge are as follows: The graphene / kelp charcoal, hydroxypropyl acrylate, ethylene glycol methyl ether are added into a reaction kettle, stirred at 70-80 DEG C and 500-600 r / min for 10-20 min, the initiator azobisisobutyronitrile and functional complex are added under nitrogen atmosphere, continue to stir for 20-30 min, then add acrylic acid, continue to stir for 2-3 h, then add polyethyleneimine, continue to stir for 20-30 min, filter, wash the product with anhydrous ethanol and deionized water for 2-3 times respectively, vacuum dry at 60-80 DEG C for 1-2 h, to obtain the antistatic and antibacterial kelp charcoal-based sponge.
2. A process for the preparation of an antistatic antibacterial type seaweed charcoal based sponge as claimed in claim 1, wherein, The kelp charcoal is prepared according to the following steps: The kelp is dried to obtain kelp powder, which is sieved to 100-120 mesh fineness using a vibrating screen machine, dried in a forced air drying oven at 105-110 DEG C for 24-26 h to obtain pretreated kelp powder, the pretreated kelp powder is placed in a reaction kettle, nitrogen gas is introduced at a flow rate of 160-170 cm / min for 30-40 min, heated to 500-520 DEG C at a rate of 5-7 DEG C / min and kept for 1-2 h, and then naturally cooled to obtain kelp charcoal.
3. A process for the preparation of an antistatic antibacterial type seaweed charcoal based sponge as claimed in claim 1, wherein, The graphene, ethanol, N,N-diisopropylethylamine, O-benzotriazole-tetramethyl urea hexafluorophosphate and gamma-aminopropyl triethoxysilane are used in a ratio of 20-30 g: 1-2 L: 0.125-0.15 g: 0.1-0.5 g: 15-20 mL.
4. A process for the preparation of an antistatic antibacterial type seaweed charcoal based sponge as claimed in claim 1, wherein, The modified graphene, ethanol solution and kelp charcoal are used in a ratio of 22-25 g: 800-900 mL: 12-15 g.
5. A process for the preparation of an antistatic antibacterial type seaweed charcoal based sponge as claimed in claim 1, wherein, The graphene / kelp charcoal, hydroxypropyl acrylate, ethylene glycol methyl ether, azobisisobutyronitrile, functional complex, acrylic acid and polyethyleneimine are used in a ratio of 10-12 g: 3.2-3.4 g: 40-42 mL: 0.1-0.2 g: 1-2 g: 7-8 g: 3-4 mL.
6. An antistatic antibacterial type seaweed charcoal-based sponge, characterized by, Prepared by the method of any one of claims 1-5. Prepared by the method of any one of claims 1-5.
Citation Information
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