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CN109252419A - A method of coating nano-titanium dioxide-chitosan antimicrobial agent prepares super-hydrophobic antibacterial paper packing material - Google Patents

A method of coating nano-titanium dioxide-chitosan antimicrobial agent prepares super-hydrophobic antibacterial paper packing material Download PDF

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Publication number
CN109252419A
CN109252419A CN201811144032.3A CN201811144032A CN109252419A CN 109252419 A CN109252419 A CN 109252419A CN 201811144032 A CN201811144032 A CN 201811144032A CN 109252419 A CN109252419 A CN 109252419A
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titanium dioxide
nano
concentration
antimicrobial agent
chitosan
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CN201811144032.3A
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Inventor
王丹
袁志杰
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Anhui Great Bear Environmental Plastic Technology Co Ltd
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Anhui Great Bear Environmental Plastic Technology Co Ltd
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Priority to CN201811144032.3A priority Critical patent/CN109252419A/en
Publication of CN109252419A publication Critical patent/CN109252419A/en
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/11—Halides
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/60—Waxes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/385—Oxides, hydroxides or carbonates
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/46—Non-macromolecular organic compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/46—Non-macromolecular organic compounds
    • D21H19/48—Diolefins, e.g. butadiene; Aromatic vinyl monomers, e.g. styrene; Polymerisable unsaturated acids or derivatives thereof, e.g. acrylic acid
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/52—Cellulose; Derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/60—Polyalkenylalcohols; Polyalkenylethers; Polyalkenylesters
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/62—Macromolecular organic compounds or oligomers thereof obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/64—Inorganic compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/16—Sizing or water-repelling agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/18—Reinforcing agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
    • D21H23/56—Rolls
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10—Packing paper

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Paper (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention discloses a kind of methods that coating nano-titanium dioxide-chitosan antimicrobial agent prepares super-hydrophobic antibacterial paper packing material, palm wax is added in chloroform, it dissolves by heating complete, palm wax solution is made, filter paper is immersed, takes out, coagulating bath in ethyl alcohol water mixed solution is put by coagulating bath proportion, it takes out, spontaneously dries, ultra-hydrophobic paper is made；Adhesive and thickener cmc soln are added into gained nano-titanium dioxide-chitosan antimicrobial agent, stirs evenly, adds defoaming agent, lubricant stearic acid calcium, is uniformly mixed obtained antibiotic paint；Gained antibiotic paint is coated by the way of roller coating on the surface of gained ultra-hydrophobic paper, after constant temperature and humidity is placed, super-hydrophobic antibacterial paper packing material is made.

Description

A kind of coating nano-titanium dioxide-chitosan antimicrobial agent prepares super-hydrophobic antibacterial paper bag The method of package material
Technical field
The invention belongs to paper packing material fields, and in particular to a kind of coating nano-titanium dioxide-chitosan antimicrobial agent system The method of standby super-hydrophobic antibacterial paper packing material.
Background technique
Food packaging, which is widely used in, protects food from surrounding environment influence, rises emphatically in the storage transportational process of food The effect wanted.Paper packing material is because its is from a wealth of sources, and low cost is renewable, degradable, has been widely used in food packaging. Traditional paper food packaging materials are mostly used with the complex forms such as paper-modeling or paper-metal, are wrapped with using these to synthesize Dress, cause environmental problem be continuously increased and consumer is to the need of the more environmentally friendly safer higher packaging material for food of quality It asks, urgent need seeks new biodegradable new function paper packing material to substitute conventional composite materials.
Summary of the invention
The purpose of the present invention is being directed to existing problem, a kind of coating nano-titanium dioxide-chitosan antimicrobial agent is provided The method for preparing super-hydrophobic antibacterial paper packing material, according to the paper packing material of this method production have excellent hydrophobic performance and Anti-microbial property.
The present invention is achieved by the following technical solutions:
A method of coating nano-titanium dioxide-chitosan antimicrobial agent prepares super-hydrophobic antibacterial paper packing material, and feature exists In including the following steps:
(1) preparation of ultra-hydrophobic paper:
5-10 parts of palm waxs are added in chloroform, is dissolved at 50-53 DEG C completely, it is molten for the palm wax of 3-4% that concentration is made Filter paper is immersed 1-2h by liquid, is taken out, and is put into coagulating bath 2-3h in ethyl alcohol water mixed solution by coagulating bath proportion 13:87, is taken Out, it spontaneously dries；
(2) nano-titanium dioxide-chitosan antimicrobial agent preparation:
0.06-0.09 parts of dispersing agents are added into 200-300 parts of deionized water-ethanol solutions, and 4-6 parts of nanometer titanium dioxides are added Titanium, adjusting pH value of solution are 8-10, and grinding distribution stirs 30-35min, then carries out ultrasonic disperse 15-20min, and nano-silica is made Change titanium pre-dispersed liquid；
2-3 parts of chitosan 1:60-70 are dissolved in the acetic acid solution that concentration is 1.2%, the chitosan solution that concentration is 2% is made； It is compounded with gained nano-titanium dioxide pre-dispersed liquid, nano-titanium dioxide-chitosan antimicrobial agent is made；
(3) preparation of super-hydrophobic antibacterial paper packing material:
Adhesive and thickener cmc soln is added into (2) middle gained nano-titanium dioxide-chitosan antimicrobial agent, It stirs evenly, adds the lubricant stearic acid calcium that defoaming agent, concentration that concentration is 0.4% are 0.3%, be uniformly mixed obtained antibacterial Coating；By gained antibiotic paint, the surface of gained ultra-hydrophobic paper is coated in (1) by the way of roller coating, and coating weight is 10g/m2, after constant temperature and humidity places 1-2d, super-hydrophobic antibacterial paper packing material is made.
Further, ethanol content is 10% in deionized water-ethanol solution in step (2), and dispersing agent is by calgon It is formed with cetomacrogol 1000 in the ratio of 1:2.
Further, the polyvinyl alcohol that adhesive is 9-10% by concentration in step (3) styrene-butadiene latex, concentration are 6-7% Solution, the chitosan solution that concentration is 1-2% form.
Further, in step (3) thickener cmc soln preparation: by carboxymethyl cellulose in 50-53 Accelerate dissolution at DEG C, is made into the thickener cmc soln that concentration is 0.4-0.5%.
The present invention has the advantage that compared with prior art
(1) using filter paper as substrate, using the method mutually separated, modifying super hydrophobicity is carried out to filter paper, is made using the method mutually separated It obtains palm wax and is deposited on surface the super-hydrophobic pattern for having both humidity resistance is made；Palm wax aggregation is completely covered on filter Paper fiber surface, the roughness for causing filter paper fibre to show increase, and obtained super-hydrophobic pattern has preferable humidity resistance, And high tensile strength is still able to maintain under relatively high humidity environment.
(2) chitosan will be added in nano-titanium dioxide, to improve the sterilizing rate of complex antimicrobials, and then obtain antibacterial Performance preferably complex antimicrobials；It is pre-dispersed with cetomacrogol 1000 nano-titanium dioxide to be prepared as dispersing agent using calgon Liquid, with styrene-butadiene latex, poly-vinyl alcohol solution, chitosan solution compounding for adhesive, using cmc soln as thickener, Using calcium stearate as lubricant；Adhesive and thickener are added into nano-titanium dioxide-chitosan antimicrobial agent, stirs evenly, Defoaming agent, lubricant are added, obtained antibiotic paint is uniformly mixed；Gained antibiotic paint is surpassed by the way of roller coating in gained The surface of hydrophobic paper is coated, and after constant temperature and humidity is placed, super-hydrophobic antibacterial paper packing material is made.
Specific embodiment
Embodiment 1
A method of coating nano-titanium dioxide-chitosan antimicrobial agent prepares super-hydrophobic antibacterial paper packing material, and feature exists In including the following steps:
(1) preparation of ultra-hydrophobic paper:
5 parts of palm waxs are added in chloroform, are dissolved at 50-53 DEG C completely, the palm wax solution that concentration is 3% is made, will filter Paper is immersed 1h, takes out, and is put into coagulating bath 2h in ethyl alcohol water mixed solution by coagulating bath proportion 13:87, takes out, naturally dry It is dry；
(2) nano-titanium dioxide-chitosan antimicrobial agent preparation:
0.06 part of dispersing agent is added into 200 parts of deionized water-ethanol solutions, 4 parts of nano-titanium dioxides are added, and adjusts pH value of solution For 8-10, grinding distribution stirs 30min, then carries out ultrasonic disperse 15min, and nano-titanium dioxide pre-dispersed liquid is made；
2 parts of chitosan 1:60 are dissolved in the acetic acid solution that concentration is 1.2%, the chitosan solution that concentration is 2% is made；By its with Gained nano-titanium dioxide pre-dispersed liquid compounding, is made nano-titanium dioxide-chitosan antimicrobial agent；
(3) preparation of super-hydrophobic antibacterial paper packing material:
Adhesive and thickener cmc soln is added into (2) middle gained nano-titanium dioxide-chitosan antimicrobial agent, It stirs evenly, adds the lubricant stearic acid calcium that defoaming agent, concentration that concentration is 0.4% are 0.3%, be uniformly mixed obtained antibacterial Coating；By gained antibiotic paint, the surface of gained ultra-hydrophobic paper is coated in (1) by the way of roller coating, and coating weight is 10g/m2, after constant temperature and humidity places 1d, super-hydrophobic antibacterial paper packing material is made.
Further, ethanol content is 10% in deionized water-ethanol solution in step (2), and dispersing agent is by calgon It is formed with cetomacrogol 1000 in the ratio of 1:2.
Poly-vinyl alcohol solution that styrene-butadiene latex that further, adhesive is 9% by concentration in step (3), concentration are 6%, The chitosan solution that concentration is 1% forms.
Further, in step (3) thickener cmc soln preparation: by carboxymethyl cellulose in 50-53 Accelerate dissolution at DEG C, is made into the thickener cmc soln that concentration is 0.4%.
Embodiment 2
A method of coating nano-titanium dioxide-chitosan antimicrobial agent prepares super-hydrophobic antibacterial paper packing material, and feature exists In including the following steps:
(1) preparation of ultra-hydrophobic paper:
10 parts of palm waxs are added in chloroform, are dissolved at 50-53 DEG C completely, the palm wax solution that concentration is 4% is made, it will Filter paper is immersed 2h, takes out, and is put into coagulating bath 3h in ethyl alcohol water mixed solution by coagulating bath proportion 13:87, takes out, naturally dry It is dry；
(2) nano-titanium dioxide-chitosan antimicrobial agent preparation:
0.09 part of dispersing agent is added into 300 parts of deionized water-ethanol solutions, 6 parts of nano-titanium dioxides are added, and adjusts pH value of solution For 8-10, grinding distribution stirs 35min, then carries out ultrasonic disperse 20min, and nano-titanium dioxide pre-dispersed liquid is made；
3 parts of chitosan 1:70 are dissolved in the acetic acid solution that concentration is 1.2%, the chitosan solution that concentration is 2% is made；By its with Gained nano-titanium dioxide pre-dispersed liquid compounding, is made nano-titanium dioxide-chitosan antimicrobial agent；
(3) preparation of super-hydrophobic antibacterial paper packing material:
Adhesive and thickener cmc soln is added into (2) middle gained nano-titanium dioxide-chitosan antimicrobial agent, It stirs evenly, adds the lubricant stearic acid calcium that defoaming agent, concentration that concentration is 0.4% are 0.3%, be uniformly mixed obtained antibacterial Coating；By gained antibiotic paint, the surface of gained ultra-hydrophobic paper is coated in (1) by the way of roller coating, and coating weight is 10g/m2, after constant temperature and humidity places 2d, super-hydrophobic antibacterial paper packing material is made.
Further, ethanol content is 10% in deionized water-ethanol solution in step (2), and dispersing agent is by calgon It is formed with cetomacrogol 1000 in the ratio of 1:2.
Poly-vinyl alcohol solution that styrene-butadiene latex that further, adhesive is 10% by concentration in step (3), concentration are 7%, The chitosan solution that concentration is 1-2% forms.
Further, in step (3) thickener cmc soln preparation: by carboxymethyl cellulose in 50-53 Accelerate dissolution at DEG C, is made into the thickener cmc soln that concentration is 0.5%.
There is excellent hydrophobic performance and anti-microbial property, water contact angle value according to the paper packing material of the method for the present invention production It is 154 °；Inhibition zone is 18mm, and the clump count of antibacterial paper wrapper is 3log(cfu/g)；
Burst index is 14KPam2/ g, tear index 8mNm2/ g, tensile index 5Nm/g.

Claims (4)

1. a kind of method that coating nano-titanium dioxide-chitosan antimicrobial agent prepares super-hydrophobic antibacterial paper packing material, feature It is, includes the following steps:
(1) preparation of ultra-hydrophobic paper:
5-10 parts of palm waxs are added in chloroform, is dissolved at 50-53 DEG C completely, it is molten for the palm wax of 3-4% that concentration is made Filter paper is immersed 1-2h by liquid, is taken out, and is put into coagulating bath 2-3h in ethyl alcohol water mixed solution by coagulating bath proportion 13:87, is taken Out, it spontaneously dries；
(2) nano-titanium dioxide-chitosan antimicrobial agent preparation:
0.06-0.09 parts of dispersing agents are added into 200-300 parts of deionized water-ethanol solutions, and 4-6 parts of nanometer titanium dioxides are added Titanium, adjusting pH value of solution are 8-10, and grinding distribution stirs 30-35min, then carries out ultrasonic disperse 15-20min, and nano-silica is made Change titanium pre-dispersed liquid；
2-3 parts of chitosan 1:60-70 are dissolved in the acetic acid solution that concentration is 1.2%, the chitosan solution that concentration is 2% is made； It is compounded with gained nano-titanium dioxide pre-dispersed liquid, nano-titanium dioxide-chitosan antimicrobial agent is made；
(3) preparation of super-hydrophobic antibacterial paper packing material:
Adhesive and thickener cmc soln is added into (2) middle gained nano-titanium dioxide-chitosan antimicrobial agent, It stirs evenly, adds the lubricant stearic acid calcium that defoaming agent, concentration that concentration is 0.4% are 0.3%, be uniformly mixed obtained antibacterial Coating；By gained antibiotic paint, the surface of gained ultra-hydrophobic paper is coated in (1) by the way of roller coating, and coating weight is 10g/m2, after constant temperature and humidity places 1-2d, super-hydrophobic antibacterial paper packing material is made.
2. a kind of coating nano-titanium dioxide-chitosan antimicrobial agent according to claim 1 prepares super-hydrophobic antibacterial paper bag The method of package material, which is characterized in that ethanol content is 10% in deionized water-ethanol solution in step (2), and dispersing agent is by six Sodium metaphosphate and cetomacrogol 1000 are formed in the ratio of 1:2.
3. a kind of coating nano-titanium dioxide-chitosan antimicrobial agent according to claim 1 prepares super-hydrophobic antibacterial paper bag The method of package material, which is characterized in that adhesive is 9-10% by concentration in step (3) styrene-butadiene latex, concentration are the poly- of 6-7% Glycohol solution, the chitosan solution that concentration is 1-2% form.
4. a kind of coating nano-titanium dioxide-chitosan antimicrobial agent according to claim 1 prepares super-hydrophobic antibacterial paper bag The method of package material, which is characterized in that the preparation of thickener cmc soln in step (3): by carboxymethyl cellulose Accelerate dissolution at 50-53 DEG C, is made into the thickener cmc soln that concentration is 0.4-0.5%.
CN201811144032.3A 2018-09-29 2018-09-29 A method of coating nano-titanium dioxide-chitosan antimicrobial agent prepares super-hydrophobic antibacterial paper packing material Withdrawn CN109252419A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110055822A (en) * 2019-05-15 2019-07-26 北京理工大学珠海学院 A kind of biodegradable coating material and preparation method thereof
CN110792004A (en) * 2019-11-18 2020-02-14 界首市天路包装材料有限公司 Antibacterial and oil-proof modification method of degradable food packaging paper
CN111910433A (en) * 2020-08-24 2020-11-10 清远瑞华助剂有限公司 Natural antibacterial agent and processing equipment thereof
CN112959740A (en) * 2021-03-13 2021-06-15 杭州顺风实业有限公司 Antibacterial paper cup and preparation method thereof
CN114277614A (en) * 2022-01-04 2022-04-05 吉林大学 Oxide material with plasmon resonance performance and antibacterial packaging application
CN114541169A (en) * 2022-02-18 2022-05-27 广东宝佳利新材料股份有限公司 Recyclable composite packaging bag
CN114657815A (en) * 2022-03-25 2022-06-24 浙江工业大学 Preparation method of green degradable antibacterial paper with bioactive coating for fruit cultivation bag

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110055822A (en) * 2019-05-15 2019-07-26 北京理工大学珠海学院 A kind of biodegradable coating material and preparation method thereof
CN110792004A (en) * 2019-11-18 2020-02-14 界首市天路包装材料有限公司 Antibacterial and oil-proof modification method of degradable food packaging paper
CN111910433A (en) * 2020-08-24 2020-11-10 清远瑞华助剂有限公司 Natural antibacterial agent and processing equipment thereof
WO2022041422A1 (en) * 2020-08-24 2022-03-03 清远瑞华助剂有限公司 Natural antimicrobial agent and processing device therefor
CN112959740A (en) * 2021-03-13 2021-06-15 杭州顺风实业有限公司 Antibacterial paper cup and preparation method thereof
CN114277614A (en) * 2022-01-04 2022-04-05 吉林大学 Oxide material with plasmon resonance performance and antibacterial packaging application
CN114541169A (en) * 2022-02-18 2022-05-27 广东宝佳利新材料股份有限公司 Recyclable composite packaging bag
CN114657815A (en) * 2022-03-25 2022-06-24 浙江工业大学 Preparation method of green degradable antibacterial paper with bioactive coating for fruit cultivation bag

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