CN116693983A - Antibacterial environment-friendly epp material packaging box - Google Patents
Antibacterial environment-friendly epp material packaging box Download PDFInfo
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- CN116693983A CN116693983A CN202310867802.1A CN202310867802A CN116693983A CN 116693983 A CN116693983 A CN 116693983A CN 202310867802 A CN202310867802 A CN 202310867802A CN 116693983 A CN116693983 A CN 116693983A
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- 239000000463 material Substances 0.000 title claims abstract description 50
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 41
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 40
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 42
- 239000002245 particle Substances 0.000 claims abstract description 23
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims description 75
- 238000006243 chemical reaction Methods 0.000 claims description 65
- 239000007795 chemical reaction product Substances 0.000 claims description 45
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 33
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- 238000001816 cooling Methods 0.000 claims description 27
- 239000004743 Polypropylene Substances 0.000 claims description 26
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 21
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 21
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 19
- 239000003963 antioxidant agent Substances 0.000 claims description 19
- 230000003078 antioxidant effect Effects 0.000 claims description 19
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 claims description 16
- 238000005187 foaming Methods 0.000 claims description 15
- 229920001661 Chitosan Polymers 0.000 claims description 14
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 14
- 239000008367 deionised water Substances 0.000 claims description 14
- 229910021641 deionized water Inorganic materials 0.000 claims description 14
- 239000003365 glass fiber Substances 0.000 claims description 14
- 239000008187 granular material Substances 0.000 claims description 14
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 10
- 239000012065 filter cake Substances 0.000 claims description 10
- 229910017604 nitric acid Inorganic materials 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 230000001376 precipitating effect Effects 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 9
- 238000002390 rotary evaporation Methods 0.000 claims description 9
- TXUICONDJPYNPY-UHFFFAOYSA-N (1,10,13-trimethyl-3-oxo-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl) heptanoate Chemical compound C1CC2CC(=O)C=C(C)C2(C)C2C1C1CCC(OC(=O)CCCCCC)C1(C)CC2 TXUICONDJPYNPY-UHFFFAOYSA-N 0.000 claims description 8
- INUNLMUAPJVRME-UHFFFAOYSA-N 3-chloropropanoyl chloride Chemical compound ClCCC(Cl)=O INUNLMUAPJVRME-UHFFFAOYSA-N 0.000 claims description 8
- XRHGYUZYPHTUJZ-UHFFFAOYSA-N 4-chlorobenzoic acid Chemical compound OC(=O)C1=CC=C(Cl)C=C1 XRHGYUZYPHTUJZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910021626 Tin(II) chloride Inorganic materials 0.000 claims description 8
- LQAVWYMTUMSFBE-UHFFFAOYSA-N pent-4-en-1-ol Chemical compound OCCCC=C LQAVWYMTUMSFBE-UHFFFAOYSA-N 0.000 claims description 8
- 239000001119 stannous chloride Substances 0.000 claims description 8
- 235000011150 stannous chloride Nutrition 0.000 claims description 8
- 238000001704 evaporation Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000000967 suction filtration Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 239000000706 filtrate Substances 0.000 claims description 5
- 239000005457 ice water Substances 0.000 claims description 5
- -1 polypropylene Polymers 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 239000002244 precipitate Substances 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 4
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 3
- 230000006196 deacetylation Effects 0.000 claims description 2
- 238000003381 deacetylation reaction Methods 0.000 claims description 2
- 241000894006 Bacteria Species 0.000 abstract description 9
- 238000012856 packing Methods 0.000 abstract description 8
- 238000009395 breeding Methods 0.000 abstract description 3
- 230000001488 breeding effect Effects 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 230000003385 bacteriostatic effect Effects 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000004088 foaming agent Substances 0.000 abstract description 2
- 239000006260 foam Substances 0.000 abstract 1
- 238000010992 reflux Methods 0.000 description 32
- 238000010438 heat treatment Methods 0.000 description 19
- 239000002904 solvent Substances 0.000 description 12
- 230000001276 controlling effect Effects 0.000 description 8
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical class [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical class [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 238000000502 dialysis Methods 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 125000003277 amino group Chemical group 0.000 description 3
- 125000001309 chloro group Chemical group Cl* 0.000 description 3
- 150000004714 phosphonium salts Chemical group 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001263 acyl chlorides Chemical group 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
- C08B37/0024—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof
- C08B37/0027—2-Acetamido-2-deoxy-beta-glucans; Derivatives thereof
- C08B37/003—Chitin, i.e. 2-acetamido-2-deoxy-(beta-1,4)-D-glucan or N-acetyl-beta-1,4-D-glucosamine; Chitosan, i.e. deacetylated product of chitin or (beta-1,4)-D-glucosamine; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0085—Use of fibrous compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
- C08J2405/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- Polymers & Plastics (AREA)
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Abstract
The invention relates to the field of packaging, in particular to an antibacterial environment-friendly epp material packaging box, which is used for solving the problems that the conventional epp material has poor antibacterial performance, is easy to cause the packaged articles to contact bacteria, and has poor sanitary condition and low safety; the main raw material of the packing box is PP particles, the azodiisobutyronitrile is used as a foaming agent to foam the PP particles at a high temperature, the packing box is finally prepared, the high-efficiency antibacterial agent is added into the packing box to endow the packing box with good antibacterial and bacteriostatic properties, bacteria can be inhibited from breeding, the bacteria after breeding are eliminated, the packed articles are prevented from being contacted with the bacteria, the sanitation is ensured, the safety is improved, the good degradation property of the packing box can be endowed by adding the high-efficiency antibacterial agent, the environmental protection is improved, and great contribution is made to the protection of the environment.
Description
Technical Field
The invention relates to the field of packaging, in particular to an antibacterial environment-friendly epp material packaging box.
Background
The foamed plastic has the advantages of light weight, heat insulation, buffering, insulation, corrosion prevention, low price and the like, so that the foamed plastic is widely applied to daily necessities, packaging, industry, agriculture, transportation industry, military industry and aerospace industry, can be used as a building material with good heat preservation and sound insulation effects, is a high-crystalline polymer/gas composite material with excellent performance, and becomes the fastest growing environment-friendly novel compression-resistant buffering heat insulation material with unique and superior performance, and a epp product has very excellent anti-seismic energy absorption performance, high recovery rate after deformation, good heat resistance, chemical resistance, oil resistance and heat insulation, and in addition, the foamed plastic is light in weight and can greatly lighten the weight of articles.
However, the current epp material has poor antibacterial property, is easy to cause the packaged articles to contact bacteria, and has poor sanitary condition and low safety.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide an antibacterial environment-friendly epp material packaging box: the PP particles, the efficient antibacterial agent, the antioxidant, the glass fiber, the deionized water and the azodiisobutyronitrile are added into an extruder, melted and extruded, granulated to obtain granules, then the granules are added into a reaction kettle for heat preservation to obtain foaming materials, the foaming materials are added into a die, and the antibacterial environment-friendly epp material packaging box is obtained after molding, so that the problems that the existing epp material is poor in antibacterial performance, the packaged articles are easy to contact bacteria, the sanitary condition is poor and the safety is low are solved.
The aim of the invention can be achieved by the following technical scheme:
an antibacterial environment-friendly epp material packaging box comprises the following components in parts by weight:
80-100 parts of PP particles, 1.5-15 parts of high-efficiency antibacterial agent, 1.5-2.3 parts of antioxidant, 3-9 parts of glass fiber, 10-22 parts of deionized water and 2.4-4.8 parts of azodiisobutyronitrile;
the efficient antibacterial agent is prepared by the following steps:
step one: adding concentrated sulfuric acid and p-chlorobenzoic acid into a three-neck flask provided with a stirrer, a thermometer and a constant pressure dropping funnel, gradually adding concentrated nitric acid while stirring under the conditions of the temperature of 25-30 ℃ and the stirring rate of 300-400 r/min, controlling the dropping rate to be 1-2 drops/s, continuously stirring and reacting for 3-4h under the conditions of heating to 85-90 ℃ after the dropping is finished, cooling the reaction product to room temperature after the reaction is finished, pouring into ice water, precipitating, vacuum filtering, and recrystallizing a filter cake with anhydrous methanol to obtain an intermediate 1;
the reaction principle is as follows:
step two: adding the intermediate 1, 4-penten-1-ol, concentrated sulfuric acid and methylene dichloride into a three-neck flask provided with a stirrer, a thermometer and a reflux condenser, stirring and reacting for 20-30 min under the conditions that the temperature is 25-30 ℃ and the stirring speed is 300-400 r/min, heating to reflux, continuing stirring and reacting for 4-5h, cooling the reaction product to room temperature after the reaction is finished, and removing the solvent by rotary evaporation to obtain an intermediate 2;
the reaction principle is as follows:
step three: adding the intermediate 2, stannous chloride and anhydrous methanol into a three-neck flask provided with a stirrer, a thermometer and a reflux condenser, stirring and reacting for 20-30 min under the conditions of 25-30 ℃ and stirring speed of 300-400 r/min, heating to reflux, continuing stirring and reacting for 4-5h, cooling a reaction product to room temperature after the reaction is finished, regulating the pH value to 7-7.5 by using a saturated sodium carbonate solution, precipitating a precipitate, performing vacuum suction filtration, and recrystallizing a filter cake by using n-hexane to obtain an intermediate 3;
the reaction principle is as follows:
step four: adding the intermediate 3, triethylamine and chloroform into a three-neck flask provided with a stirrer, a thermometer and a constant-pressure dropping funnel, gradually adding 3-chloropropionyl chloride dropwise under the conditions of the temperature of-5-0 ℃ and the stirring rate of 300-400 r/min, controlling the dropping rate to be 1-2 drops/s, heating to 45-50 ℃ after the dropping, continuously stirring for 2-3 hours, cooling the reaction product to room temperature after the reaction is finished, washing the reaction product for 2-3 times by saturated sodium bicarbonate solution and saturated saline water in sequence, drying the reaction product by anhydrous sodium sulfate, performing vacuum suction filtration, and rotationally evaporating the filtrate to remove the solvent to obtain an intermediate 4;
the reaction principle is as follows:
step five: adding the intermediate 4, triphenylphosphine and toluene into a three-neck flask provided with a stirrer, a thermometer and a reflux condenser, stirring for reaction at the temperature of 25-30 ℃ and the stirring rate of 300-400 r/min for 20-30 min, heating to reflux, continuing stirring for reaction for 20-30h, cooling the reaction product to room temperature after the reaction is finished, and removing the solvent by rotary evaporation to obtain an intermediate 5;
the reaction principle is as follows:
step six: adding chitosan powder and sodium hydroxide solution into a three-neck flask provided with a stirrer, a thermometer and a reflux condenser, stirring and reacting for 3-5h under the conditions of 25-30 ℃ and stirring speed of 300-400 r/min, adding an intermediate 5, heating to reflux and continuously stirring and reacting for 20-30h, cooling a reaction product to room temperature after the reaction is finished, placing in distilled water, dialyzing for 2-3d by using a dialysis bag with a molecular weight cutoff of 3000-3500, and freeze-drying to obtain the efficient antibacterial agent.
The reaction principle is as follows:
as a further scheme of the invention: the dosage ratio of the concentrated sulfuric acid to the p-chlorobenzoic acid to the concentrated nitric acid in the first step is 70-80mL:0.1mol:30-35mL, wherein the mass fraction of the concentrated sulfuric acid is 95-98%, and the mass fraction of the concentrated nitric acid is 65-67%.
As a further scheme of the invention: the dosage ratio of the intermediate 1, 4-penten-1-ol, concentrated sulfuric acid and dichloromethane in the second step is 0.1mol:0.1mol:3.5-4.5g:80-100mL, wherein the mass fraction of the concentrated sulfuric acid is 95-98%.
As a further scheme of the invention: the dosage ratio of the intermediate 2, stannous chloride and anhydrous methanol in the third step is 10mmol:80-100mmol:50-60mL.
As a further scheme of the invention: the dosage ratio of the intermediate 3, triethylamine, chloroform and 3-chloropropionyl chloride in the fourth step is 10mmol:20-25mmol:50-60mL:22-25mmol.
As a further scheme of the invention: the dosage ratio of the intermediate 4, triphenylphosphine and toluene in the fifth step is 10mmol:22-25mmol:80-100mL.
As a further scheme of the invention: the dosage ratio of the chitosan powder, the sodium hydroxide solution and the intermediate 5 in the step six is 1g:30-40mL:1.5-8.5g, wherein the deacetylation degree of the chitosan is more than or equal to 95%, the viscosity is 100-200 mPa.s, and the mass fraction of the sodium hydroxide solution is 8-10%.
As a further scheme of the invention: the antibacterial environment-friendly epp material packaging box is prepared by the following steps:
step S1: weighing 80-100 parts of PP particles, 1.5-15 parts of efficient antibacterial agent, 1.5-2.3 parts of antioxidant, 3-9 parts of glass fiber, 10-22 parts of deionized water and 2.4-4.8 parts of azodiisobutyronitrile according to parts by weight for standby;
step S2: adding PP particles, a high-efficiency antibacterial agent, an antioxidant, glass fibers, deionized water and azodiisobutyronitrile into an extruder, carrying out melt extrusion, granulating to obtain granules, adding the granules into a reaction kettle, and preserving heat for 5-6h at 130-135 ℃ to obtain a foaming material;
step S3: and adding the foaming material into a mould, and forming to obtain the antibacterial environment-friendly epp material packaging box.
As a further scheme of the invention: the PP particles are low-melting-point copolymerized polypropylene with the model RP242G, and the antioxidant is one of an antioxidant 1076 and an antioxidant 168.
The invention has the beneficial effects that:
the invention relates to an antibacterial environment-friendly epp material packaging box, which is prepared by adding PP particles, a high-efficiency antibacterial agent, an antioxidant, glass fibers, deionized water and azodiisobutyronitrile into an extruder, carrying out melt extrusion, granulating to obtain granules, then adding the granules into a reaction kettle for heat preservation to obtain a foaming material, adding the foaming material into a die, and forming to obtain the antibacterial environment-friendly epp material packaging box; the main raw materials of the packaging box are PP particles, the PP particles are foamed by taking azodiisobutyronitrile as a foaming agent under the high temperature condition, and finally the packaging box is prepared, and the packaging box is endowed with good antibacterial and bacteriostatic properties by adding the efficient antibacterial agent, so that bacteria can be inhibited from breeding, and the bred bacteria can be killed, so that packaged objects can be prevented from contacting with the bacteria, the sanitation of the packaging box is ensured, the safety of the packaging box is improved, and the packaging box is endowed with good degradation property by adding the efficient antibacterial agent, the environmental protection of the packaging box is improved, and great contribution is made to the protection of the environment;
in the process of preparing an antibacterial environment-friendly epp material packaging box, firstly preparing an efficient antibacterial agent, firstly nitrifying p-chlorobenzoic acid by using concentrated sulfuric acid and concentrated nitric acid, introducing nitro groups to obtain an intermediate 1, then esterifying carboxyl groups on the intermediate 1 with hydroxyl groups on 4-penten-1-ol to obtain an intermediate 2, reducing nitro groups on the intermediate 2 into amino groups by stannous chloride to obtain an intermediate 3, then reacting amino groups on the intermediate 3 with acyl chloride groups on 3-chloropropionyl chloride, introducing carbon chains and chlorine atoms to obtain an intermediate 4, then reacting chlorine atoms linked with the carbon chains on the intermediate 4 with triphenylphosphine to form quaternary phosphonium salt, and then reacting chlorine atoms on the intermediate 5 with amino groups and hydroxyl groups on chitosan powder to obtain the efficient antibacterial agent; the efficient antibacterial agent is a high molecular compound of chitosan grafted quaternary phosphonium salt, has antibacterial property and biodegradability of chitosan and antibacterial property of quaternary phosphonium salt, can endow good antibacterial property and biodegradability to a packaging box when added into raw materials of the packaging box, and can be used as an initiator to initiate alkenyl polymerization on the efficient antibacterial agent in the foaming process, so that molecules of the efficient antibacterial agent are crosslinked with each other, and the mechanical strength of the packaging box can be improved.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
the embodiment is a preparation method of a high-efficiency antibacterial agent, which comprises the following steps:
step one: adding 70mL of concentrated sulfuric acid with the mass fraction of 95% and 0.1mol of p-chlorobenzoic acid into a three-neck flask provided with a stirrer, a thermometer and a constant pressure dropping funnel, dropwise adding 30mL of concentrated nitric acid with the mass fraction of 65% while stirring under the condition that the temperature is 25 ℃ and the stirring rate is 300 r/min, controlling the dropping rate to be 1 drop/s, continuously stirring and reacting for 3 hours under the condition that the temperature is raised to 85 ℃ after the dropping is finished, cooling a reaction product to room temperature after the reaction is finished, pouring into ice water, precipitating and filtering, and recrystallizing a filter cake by using absolute methanol under vacuum suction to obtain an intermediate 1;
step two: adding 0.1mol of intermediate 1, 0.1 mL of 4-penten-1-ol, 3.5g of concentrated sulfuric acid with the mass fraction of 95% and 80mL of dichloromethane into a three-neck flask provided with a stirrer, a thermometer and a reflux condenser, stirring at the temperature of 25 ℃ and the stirring rate of 300 r/min for reaction for 20 min, heating to reflux, continuing stirring for reaction for 4h, cooling the reaction product to room temperature after the reaction is finished, and removing the solvent by rotary evaporation to obtain an intermediate 2;
step three: adding 10mmol of intermediate 2, 80 mmol of stannous chloride and 50mL of anhydrous methanol into a three-neck flask provided with a stirrer, a thermometer and a reflux condenser, stirring and reacting for 20 min under the condition that the temperature is 25 ℃ and the stirring rate is 300 r/min, heating to reflux, continuing stirring and reacting for 4h, cooling a reaction product to room temperature after the reaction is finished, regulating the pH value to 7 by using a saturated sodium carbonate solution, precipitating a precipitate, vacuum-filtering, and recrystallizing a filter cake by using n-hexane to obtain an intermediate 3;
step four: adding 10mmo l of intermediate 3, 20mmo l of triethylamine and 50mL of chloroform into a three-neck flask provided with a stirrer, a thermometer and a constant pressure dropping funnel, gradually adding 22mmo l of 3-chloropropionyl chloride while stirring at a temperature of-5 ℃ and a stirring rate of 300 r/min, controlling the dropping rate to be 1 drop/s, continuously stirring and reacting for 2h under the condition that the temperature is raised to 45 ℃ after the dropping is finished, cooling a reaction product to room temperature after the reaction is finished, washing the reaction product for 2 times by using a saturated sodium bicarbonate solution and a saturated saline solution in sequence, drying the reaction product by using anhydrous sodium sulfate, performing vacuum suction filtration, and rotationally evaporating filtrate to remove the solvent to obtain an intermediate 4;
step five: adding 10mmol of intermediate 4, 22 mmol of triphenylphosphine and 80mL of toluene into a three-neck flask provided with a stirrer, a thermometer and a reflux condenser, stirring and reacting for 20 min under the condition that the temperature is 25 ℃ and the stirring rate is 300 r/min, heating to reflux, continuing stirring and reacting for 20h, cooling the reaction product to room temperature after the reaction is finished, and removing the solvent by rotary evaporation to obtain an intermediate 5;
step six: 1g of chitosan powder with the viscosity of 100 mPas and 30mL of sodium hydroxide solution with the mass fraction of 8% are added into a three-neck flask provided with a stirrer, a thermometer and a reflux condenser, stirred for reaction for 3 hours under the condition that the temperature is 25 ℃ and the stirring rate is 300 r/min, then 1.5g of intermediate 5 is added and the temperature is raised to reflux, stirring reaction is continued for 20 hours, after the reaction is finished, the reaction product is cooled to room temperature, then the reaction product is placed into distilled water, dialyzed for 2 days by a dialysis bag with the cut-off molecular weight of 3000, and then the reaction product is frozen and dried, thus obtaining the efficient antibacterial agent.
Example 2:
the embodiment is a preparation method of a high-efficiency antibacterial agent, which comprises the following steps:
step one: adding 75mL of 96% by mass of concentrated sulfuric acid and 0.1mol of p-chlorobenzoic acid into a three-neck flask provided with a stirrer, a thermometer and a constant pressure dropping funnel, dropwise adding 32mL of 66% by mass of concentrated nitric acid under the conditions of 28 ℃ and 350 r/min of stirring rate, controlling the dropping rate to be 1 drop/s, continuously stirring and reacting for 3.5h under the conditions of heating to 88 ℃ after the dropping is finished, cooling the reaction product to room temperature after the reaction is finished, pouring into ice water, precipitating, vacuum filtering, and recrystallizing a filter cake by using absolute methanol to obtain an intermediate 1;
step two: adding 0.1mol of intermediate 1, 0.1 mL of 4-penten-1-ol, 4g of 96% concentrated sulfuric acid and 90mL of dichloromethane into a three-neck flask provided with a stirrer, a thermometer and a reflux condenser, stirring at 28 ℃ and stirring speed of 350 r/min for reaction for 25 min, heating to reflux for continuous stirring for reaction for 4.5h, cooling the reaction product to room temperature after the reaction is finished, and removing the solvent by rotary evaporation to obtain an intermediate 2;
step three: adding 10mmo l of intermediate 2, 90mmo l of stannous chloride and 55mL of anhydrous methanol into a three-neck flask provided with a stirrer, a thermometer and a reflux condenser, stirring at 28 ℃ and stirring speed of 350 r/min for reaction for 25 min, heating to reflux, continuously stirring for reaction for 4.5h, cooling the reaction product to room temperature after the reaction is finished, regulating the pH value to 7.2 by using a saturated sodium carbonate solution, precipitating a precipitate, vacuum-filtering, and recrystallizing a filter cake by using n-hexane to obtain an intermediate 3;
step four: adding 10mmol of intermediate 3, 22 mmol of triethylamine and 55mL of chloroform into a three-neck flask provided with a stirrer, a thermometer and a constant-pressure dropping funnel, dropwise adding 24 mmol of 3-chloropropionyl chloride under the condition of the temperature of-3 ℃ and the stirring rate of 350 r/min, controlling the dropping rate to be 1 drop/s, continuously stirring and reacting for 2.5h under the condition of heating to 48 ℃ after the dropping is finished, cooling the reaction product to room temperature after the reaction is finished, washing the reaction product for 2 times by using a saturated sodium bicarbonate solution and a saturated saline solution in sequence, drying the reaction product by using anhydrous sodium sulfate, vacuum suction filtering, and rotationally evaporating the filtrate to remove the solvent to obtain an intermediate 4;
step five: adding 10mmol of intermediate 4, 24 mmol of triphenylphosphine and 90mL of toluene into a three-neck flask provided with a stirrer, a thermometer and a reflux condenser, stirring and reacting for 25 min under the conditions that the temperature is 28 ℃ and the stirring rate is 350 r/min, heating to reflux, continuing stirring and reacting for 25h, cooling the reaction product to room temperature after the reaction is finished, and removing the solvent by rotary evaporation to obtain an intermediate 5;
step six: 1g of chitosan powder with the viscosity of 150 mPa.s and 35mL of sodium hydroxide solution with the mass fraction of 9% are added into a three-neck flask provided with a stirrer, a thermometer and a reflux condenser, stirred and reacted for 4 hours under the condition that the temperature is 28 ℃ and the stirring rate is 350 r/min, then 5g of intermediate 5 is added and the temperature is raised to reflux, the stirring and the reaction are continued for 25 hours, after the reaction is finished, the reaction product is cooled to room temperature, then the reaction product is placed into distilled water, dialyzed for 2.5 days by a dialysis bag with the molecular weight cutoff of 3250, and then the reaction product is frozen and dried, thus obtaining the efficient antibacterial agent.
Example 3:
the embodiment is a preparation method of a high-efficiency antibacterial agent, which comprises the following steps:
step one: adding 80mL of 98% by mass of concentrated sulfuric acid and 0.1mol of p-chlorobenzoic acid into a three-neck flask provided with a stirrer, a thermometer and a constant pressure dropping funnel, gradually adding 35mL of 67% by mass of concentrated nitric acid while stirring at a temperature of 30 ℃ and a stirring rate of 400 r/min, controlling the dropping rate to be 2 drops/s, continuously stirring and reacting for 4 hours under the condition of heating to 90 ℃ after the dropping is finished, cooling a reaction product to room temperature after the reaction is finished, pouring into ice water, precipitating, vacuum-filtering, and recrystallizing a filter cake by using absolute methanol to obtain an intermediate 1;
step two: adding 0.1mol of intermediate 1, 0.1 mL of 4-penten-1-ol, 4.5g of concentrated sulfuric acid with the mass fraction of 98% and 100mL of dichloromethane into a three-neck flask provided with a stirrer, a thermometer and a reflux condenser, stirring at the temperature of 30 ℃ and the stirring rate of 400 r/min for reaction for 30 min, heating to reflux, continuing stirring for reaction for 5h, cooling the reaction product to room temperature after the reaction is finished, and removing the solvent by rotary evaporation to obtain an intermediate 2;
step three: adding 10mmo l of intermediate 2, 100mmo l of stannous chloride and 60mL of anhydrous methanol into a three-neck flask provided with a stirrer, a thermometer and a reflux condenser, stirring and reacting for 30 min under the condition that the temperature is 30 ℃ and the stirring rate is 400 r/min, heating to reflux, continuing stirring and reacting for 5h, cooling a reaction product to room temperature after the reaction is finished, regulating the pH value to 7.5 by using a saturated sodium carbonate solution, precipitating a precipitate, performing vacuum suction filtration, and recrystallizing a filter cake by using n-hexane to obtain an intermediate 3;
step four: adding 10mmo l of intermediate 3, 25mmo l of triethylamine and 60mL of chloroform into a three-neck flask provided with a stirrer, a thermometer and a constant-pressure dropping funnel, gradually adding 25mmo l of 3-chloropropionyl chloride while stirring under the condition of the temperature of 0 ℃ and the stirring rate of 400 r/min, controlling the dropping rate to be 2 drops/s, continuously stirring and reacting for 3 hours under the condition of heating to 50 ℃ after the dropping is finished, cooling the reaction product to room temperature after the reaction is finished, washing the reaction product for 3 times by saturated sodium bicarbonate solution and saturated saline in sequence, drying the reaction product by anhydrous sodium sulfate, performing vacuum suction filtration, and rotationally evaporating the filtrate to remove the solvent to obtain an intermediate 4;
step five: adding 10mmol of intermediate 4, 25mmol of triphenylphosphine and 100mL of toluene into a three-neck flask provided with a stirrer, a thermometer and a reflux condenser, stirring and reacting for 30 min under the condition that the temperature is 30 ℃ and the stirring rate is 400 r/min, heating to reflux, continuing stirring and reacting for 30h, cooling the reaction product to room temperature after the reaction is finished, and removing the solvent by rotary evaporation to obtain an intermediate 5;
step six: 1g of chitosan powder with the viscosity of 200 mPas and 40mL of sodium hydroxide solution with the mass fraction of 10% are added into a three-neck flask provided with a stirrer, a thermometer and a reflux condenser, stirred for reaction for 5 hours under the condition that the temperature is 30 ℃ and the stirring rate is 400 r/min, then 8.5g of intermediate 5 is added and the temperature is raised to reflux, stirring reaction is continued for 30 hours, after the reaction is finished, the reaction product is cooled to room temperature, then the reaction product is placed into distilled water, dialyzed for 3 days by a dialysis bag with the molecular weight cutoff of 3500, and then the reaction product is frozen and dried, thus obtaining the efficient antibacterial agent.
Example 4:
the embodiment is a preparation method of an antibacterial environment-friendly epp material packing box, which comprises the following steps:
step S1: weighing 80 parts of PP particles, 1.5 parts of efficient antibacterial agent, 1.5 parts of antioxidant, 3 parts of glass fiber, 10 parts of deionized water and 2.4 parts of azodiisobutyronitrile according to parts by weight for standby; the PP particles are low-melting-point copolymerized polypropylene with the model RP242G, the high-efficiency antibacterial agent is the high-efficiency antibacterial agent in the embodiment 1, and the antioxidant is an antioxidant 1076;
step S2: adding PP particles, a high-efficiency antibacterial agent, an antioxidant, glass fibers, deionized water and azodiisobutyronitrile into an extruder, carrying out melt extrusion, granulating to obtain granules, adding the granules into a reaction kettle, and preserving heat for 5 hours at the temperature of 130 ℃ to obtain a foaming material;
step S3: and adding the foaming material into a mould, and forming to obtain the antibacterial environment-friendly epp material packaging box.
Example 5:
the embodiment is a preparation method of an antibacterial environment-friendly epp material packing box, which comprises the following steps:
step S1: weighing 90 parts of PP particles, 8 parts of efficient antibacterial agent, 1.9 parts of antioxidant, 6 parts of glass fiber, 16 parts of deionized water and 3.6 parts of azodiisobutyronitrile according to parts by weight for later use; the PP particles are low-melting-point copolymerized polypropylene with the model RP242G, the high-efficiency antibacterial agent is the high-efficiency antibacterial agent in the embodiment 2, and the antioxidant is an antioxidant 1076;
step S2: adding PP particles, a high-efficiency antibacterial agent, an antioxidant, glass fibers, deionized water and azodiisobutyronitrile into an extruder, carrying out melt extrusion, granulating to obtain granules, adding the granules into a reaction kettle, and preserving heat for 5.5 hours at the temperature of 132 ℃ to obtain a foaming material;
step S3: and adding the foaming material into a mould, and forming to obtain the antibacterial environment-friendly epp material packaging box.
Example 6:
the embodiment is a preparation method of an antibacterial environment-friendly epp material packing box, which comprises the following steps:
step S1: weighing 100 parts of PP particles, 15 parts of efficient antibacterial agent, 2.3 parts of antioxidant, 9 parts of glass fiber, 22 parts of deionized water and 4.8 parts of azodiisobutyronitrile according to parts by weight for later use; the PP particles are low-melting-point copolymerized polypropylene with the model RP242G, the high-efficiency antibacterial agent is the high-efficiency antibacterial agent in the embodiment 3, and the antioxidant is the antioxidant 168;
step S2: adding PP particles, a high-efficiency antibacterial agent, an antioxidant, glass fibers, deionized water and azodiisobutyronitrile into an extruder, carrying out melt extrusion, granulating to obtain granules, adding the granules into a reaction kettle, and preserving heat for 6 hours at the temperature of 135 ℃ to obtain a foaming material;
step S3: and adding the foaming material into a mould, and forming to obtain the antibacterial environment-friendly epp material packaging box.
Comparative example 1
This comparative example differs from example 6 in that no high-potency antimicrobial agent is added.
Comparative example 2
This comparative example differs from example 6 in that chitosan powder was added instead of the high-efficiency antibacterial agent.
The performance of the antibacterial environment-friendly epp material packaging boxes of examples 4-6 and comparative examples 1-2 was tested, and the test results are shown below:
referring to the data in the table above, according to the comparison between examples 4-6 and comparative examples 1-2, it can be known that the addition of chitosan powder and the efficient antibacterial agent can greatly improve the antibacterial performance of the antibacterial environment-friendly epp material packaging box, and the improvement effect of the efficient antibacterial agent is more obvious.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative and explanatory of the invention, as various modifications and additions may be made to the particular embodiments described, or in a similar manner, by those skilled in the art, without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.
Claims (9)
1. An antibacterial environment-friendly epp material packaging box is characterized by comprising the following components in parts by weight:
80-100 parts of PP particles, 1.5-15 parts of high-efficiency antibacterial agent, 1.5-2.3 parts of antioxidant, 3-9 parts of glass fiber, 10-22 parts of deionized water and 2.4-4.8 parts of azodiisobutyronitrile;
the efficient antibacterial agent is prepared by the following steps:
step one: adding concentrated sulfuric acid and p-chlorobenzoic acid into a three-neck flask, dropwise adding concentrated nitric acid while stirring, continuing stirring for reaction after the dropwise adding is finished, cooling a reaction product after the reaction is finished, pouring the reaction product into ice water, precipitating, vacuum filtering, and recrystallizing a filter cake to obtain an intermediate 1;
step two: adding the intermediate 1, 4-pentene-1-ol, concentrated sulfuric acid and methylene dichloride into a three-neck flask, stirring for reaction, cooling a reaction product after the reaction is finished, and then rotationally evaporating to obtain an intermediate 2;
step three: adding the intermediate 2, stannous chloride and anhydrous methanol into a three-neck flask, stirring for reaction, cooling a reaction product after the reaction is finished, then adjusting pH, precipitating a precipitate, performing vacuum suction filtration, and recrystallizing a filter cake to obtain an intermediate 3;
step four: adding the intermediate 3, triethylamine and chloroform into a three-neck flask, dropwise adding 3-chloropropionyl chloride while stirring, continuing stirring for reaction after the dripping is finished, cooling a reaction product after the reaction is finished, washing, drying, vacuum filtering, and rotationally evaporating filtrate to obtain an intermediate 4;
step five: adding the intermediate 4, triphenylphosphine and toluene into a three-neck flask, stirring for reaction, cooling a reaction product after the reaction is finished, and then performing rotary evaporation to obtain an intermediate 5;
step six: adding chitosan powder and sodium hydroxide solution into a three-neck flask, stirring for reaction, adding an intermediate 5, continuing stirring for reaction, cooling a reaction product after the reaction is finished, and dialyzing to obtain the efficient antibacterial agent.
2. The antibacterial environment-friendly epp material packaging box according to claim 1, wherein the dosage ratio of the concentrated sulfuric acid to the p-chlorobenzoic acid to the concentrated nitric acid in the first step is 70-80mL:0.1mol:30-35mL, wherein the mass fraction of the concentrated sulfuric acid is 95-98%, and the mass fraction of the concentrated nitric acid is 65-67%.
3. The antibacterial environment-friendly epp material packaging box according to claim 1, wherein the dosage ratio of the intermediate 1, 4-penten-1-ol, concentrated sulfuric acid and dichloromethane in the second step is 0.1mol:0.1mol:3.5-4.5g:80-100mL, wherein the mass fraction of the concentrated sulfuric acid is 95-98%.
4. The antibacterial environment-friendly epp material packaging box according to claim 1, wherein the dosage ratio of the intermediate 2, stannous chloride and anhydrous methanol in the third step is 10mmol:80-100mmol:50-60mL.
5. The antibacterial environment-friendly epp material packaging box according to claim 1, wherein the dosage ratio of the intermediate 3, triethylamine, chloroform and 3-chloropropionyl chloride in the fourth step is 10mmol:20-25mmol:50-60mL:22-25mmol.
6. The antibacterial environment-friendly epp material packaging box according to claim 1, wherein the dosage ratio of the intermediate 4, triphenylphosphine and toluene in the fifth step is 10mmol:22-25mmol:80-100mL.
7. The antibacterial environment-friendly epp material packaging box according to claim 1, wherein the dosage ratio of the chitosan powder, the sodium hydroxide solution and the intermediate 5 in the step six is 1g:30-40mL:1.5-8.5g, wherein the deacetylation degree of the chitosan is more than or equal to 95%, the viscosity is 100-200 mPa.s, and the mass fraction of the sodium hydroxide solution is 8-10%.
8. The antibacterial environment-friendly epp material packaging box according to claim 1, wherein the antibacterial environment-friendly epp material packaging box is prepared by the following steps:
step S1: weighing 80-100 parts of PP particles, 1.5-15 parts of efficient antibacterial agent, 1.5-2.3 parts of antioxidant, 3-9 parts of glass fiber, 10-22 parts of deionized water and 2.4-4.8 parts of azodiisobutyronitrile according to parts by weight for standby;
step S2: adding PP particles, a high-efficiency antibacterial agent, an antioxidant, glass fibers, deionized water and azodiisobutyronitrile into an extruder, carrying out melt extrusion, granulating to obtain granules, adding the granules into a reaction kettle, and preserving heat for 5-6h at 130-135 ℃ to obtain a foaming material;
step S3: and adding the foaming material into a mould, and forming to obtain the antibacterial environment-friendly epp material packaging box.
9. The antibacterial environment-friendly epp material packaging box according to claim 8, wherein the PP particles are low-melting-point copolymerized polypropylene with the model number of RP242G, and the antioxidant is one of an antioxidant 1076 and an antioxidant 168.
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| CN117430941A (en) * | 2023-10-10 | 2024-01-23 | 佛山市塑派科技有限公司 | Purifying master batch for deodorizing antibacterial fresh-keeping product and preparation method thereof |
| CN117430941B (en) * | 2023-10-10 | 2024-05-14 | 佛山市塑派科技有限公司 | Purifying master batch for deodorizing antibacterial fresh-keeping product and preparation method thereof |
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