CN107083007B - A kind of Antibacterial polypropylene resin and its preparation method and application - Google Patents
A kind of Antibacterial polypropylene resin and its preparation method and application Download PDFInfo
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- CN107083007B CN107083007B CN201710234758.5A CN201710234758A CN107083007B CN 107083007 B CN107083007 B CN 107083007B CN 201710234758 A CN201710234758 A CN 201710234758A CN 107083007 B CN107083007 B CN 107083007B
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- C—CHEMISTRY; METALLURGY
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
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Abstract
The invention discloses a kind of modified polypropylene resins, which is characterized in that has the following structure: wherein, PP is polypropylene to PP-g-T, and T is modified triclosan；Number-average molecular weight 5000~2,000,000 of the modified polypropylene resin.The preparation method of the modified polypropylene resin is also disclosed, using polypropylene, modified triclosan, initiator, heat stabilizer as raw material, is prepared using melt grafting；The mass ratio of the polypropylene and modified triclosan is 99.9:0.1~70:30；The mass ratio of the polypropylene and heat stabilizer is 100:0.1~100:1；The mass ratio of the polypropylene and initiator is 100:0.01~100:1.In modified polypropylene resin prepared by the present invention, triclosan functional structure is connected in acrylic resin molecule with chemical bond, with lasting antibacterial functions, in use compared with the conventional blending in acrylic resin or spraying the method for triclosan antimicrobial agent, it the advantage is that triclosan ingredient is not lost, not only it can decline to avoid acrylic resin anti-microbial property, but also not can cause environmental pollution.
Description
Technical field
It is of the invention to be related to acrylic resin technical field, especially a kind of acrylic resin with antibacterial functions and its
Preparation method.
Background technique
Polypropylene material is widely used in the production and living such as aqueduct, household electrical appliances, medical instrument, toy field, with
Health and environmental consciousness is gradually increased in people, and the requirement to these product clean levels is also higher and higher, is especially curing
Instrument field (such as artificial mesh material, operation suture thread etc. of acrylic resin preparation) is treated, how to avoid drawing because of material
The infection risen is one of the problem of it is encountered in clinical application.Since polypropylene itself does not have antibacterial, anti-mildew function
Can, people are usually polypropylene to be blended with antibacterial agent, or pass through infusion method or Method for bonding for antibacterial moleucles at present
It is attached to polypropylene material surface, so that product be made to reach antibacterial functions.Chinese invention patent application prospectus
CN104387669A discloses a kind of medical PP inorganic antimicrobial composite material and preparation method thereof, and this method inorganic is received using a kind of
Rice silver-zirconium phosphate antimicrobial, with polypropylene and some auxiliary agents extruding pelletization after mixing according to a certain ratio, obtained production
Product have certain antibacterial ability；Chinese invention patent application prospectus CN103263693A discloses a kind of immobilized antibacterial
Drug hernia repairs the preparation method and purposes of sticking patch, and this method is prepared for immobilized antibacterials by dip-coating, spraying or rubbing method
Sticking patch；Chinese invention patent application prospectus CN103144392A discloses a kind of stable antibacterial polypropylene modified material of light
Product and preparation method thereof, this method is by forming nanometer two by plasma sputtering technique on molding polypropylene articles surface
Titanium oxide layer, to make the product that there is antibiotic property.All in all, the above method is all by antibacterial material with physical mixed side
Method is added into polypropylene base, since chemical bond, antibacterial agent dispersion being not present between antimicrobial molecule and polypropylene base
Uniformity be not easy to guarantee, be furthermore also difficult to avoid that the losing issue of antimicrobial component, directly affect the long-term anti-microbial property of product.
In addition, the antibacterial agent of exudation also has more or less adverse effect to the mankind and environment.It is common currently on the market
Antibacterial agent have heavy metal classes, quaternary ammonium salt, chlorinated organics class and nano material class etc., especially using triclosan as representative
Chlorinated organics antibacterial agent, life and medical field are using very extensive.
Triclosan (also known as triclosan, chemical name 2,4,4 '-three chloro- 2 '-dihydroxy diphenyl ethers) is a kind of broad-spectrum high efficacy
Antibacterial agent and disinfectant have extremely strong inhibition to gram-positive bacteria, Gram-negative bacteria, fungi and virus and kill work
With being widely applied to the industries such as daily use chemicals, weaving, building materials and plastics.Its main component is following formula chemical structure:
In recent years, addition and actual effect of the Food and Drug Adminstration of the US (FDA) to triclosan in household chemicals commodity
Query is proposed, furthermore the loss of triclosan also results in the extensive pass of society on influence caused by environment (especially water environment)
Note.It is such as able to achieve chemical bonding of the antimicrobial component in polypropylene material, makes product that there is lasting antibacterial effect, and effectively keep away
Exempt from the loss of antibacterial agent ingredient, not only there is important practical value, with more long-range environment protection significance.
Summary of the invention
The object of the present invention is to provide a kind of modified polypropylene resins, have the following structure:
PP-g-T
Wherein, PP is polypropylene, and T is modified triclosan；
The number-average molecular weight (GPC method test, corrected by standard sample of polystyrene) of the modified polypropylene resin
5000~2,000,000；
The modification triclosan has following structure:
Wherein, X is any structure in lower formula (I)~formula (III)；
In formula, R1For H or CH3, R2For the aliphatic containing 1~12 carbon atom or aromatic group or its substituent, R3
Aliphatic or aromatic group for H or containing 1~12 carbon atom.
Preferably, in the modified polypropylene resin, polypropylene mass percentage is 70~99.9%, modified
The mass percentage of triclosan is 0.1~30%.
Modification triclosan of the present invention containing formula (I) and (II) structure is by triclosan and acryloyl chloride class compound
Esterification is carried out to prepare.
The modification triclosan containing formula (III) structure of the present invention is by triclosan and containing the horse of acid chloride groups
Carry out acid diesters compound progress esterification to prepare.
It is a further object of the present invention to provide the preparation methods of above-mentioned modified polypropylene resin, with polypropylene, modified trichlorine
Life, initiator, heat stabilizer are raw material, are prepared using melt grafting.The polypropylene and the mass ratio for being modified triclosan are
99.9:0.1~70:30；The mass ratio of the polypropylene and heat stabilizer is 100:0.1~100:1；The polypropylene and initiation
The mass ratio of agent is 100:0.01~100:1.
Modified polypropylene resin prepared by the present invention forms the body of combining closely of polypropylene and modified triclosan, modified
For triclosan due to having the chemical structure of (I)~(III), the olefinic double bonds in structure can be with polypropylene molecular chain above-mentioned
Chemical bonds are generated in preparation process, so that the triclosan functional group with antibacterial functions is firmly bonded to acrylic resin
On.
Preferably, the mass ratio of the polypropylene and modified triclosan is 98:2~90:10；The polypropylene and heat
The mass ratio of stabilizer is 100:0.2~100:0.5；The mass ratio of the polypropylene and initiator is 100:0.05~100:
0.5。
Preferably, the heat stabilizer is selected from the macromolecular antioxidant of Hinered phenols, phosphorous acid kind antioxidant or alkane
At least one of esters antioxidant.
It is further preferred that the heat stabilizer is the macromolecular antioxidant of the Hinered phenols and phosphorous acid kind antioxidant
Combination.
Most preferably, the heat stabilizer is antioxidant 1010 (four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid]
Pentaerythritol ester) and irgasfos 168 (three [2.4- di-tert-butyl-phenyl] phosphite esters).Preferably, the antioxidant 1010 and
The mass ratio of irgasfos 168 is 1:0.5~1:2.
Preferably, the initiator is selected from organic peroxide or azo-initiator.
It is further preferred that the organic peroxide is cyclohexanone peroxide, cumyl peroxide, diphenyl peroxide
Formyl or tert-butyl hydroperoxide.
It is further preferred that the azo-initiator is azodiisobutyronitrile or azobisisoheptonitrile.
Preferably, the preparation method comprises the following steps:
1) acrylic resin, modified triclosan, heat stabilizer, initiator are subjected to mechanical mixture, obtain premixing raw material；
2) the premixing raw material is added in Reaction extrusion equipment, at 160 DEG C (polypropylene fusing points) with enterprising
Row reaction；
3) it is cooling by circulator bath to squeeze out product.
Preferably, the equipment that the method uses is appointing in single screw extrusion machine, double screw extruder, mixer
It anticipates one kind.
It is further preferred that the equipment that the method uses is double screw extruder；Double screw extruder from melt zone, nibble
The temperature for closing conversion zone to melt conveying zone is successively set as 130~170 DEG C, 180~200 DEG C, 180~200 DEG C；Screw speed
It adjusts at 100~150 revs/min.
When modified triclosan is solid-state, the method for being modified and remixing acrylic resin after triclosan can be dissolved by solvent
Be uniformly mixed it, using solvent be usually it is volatile and not with modified triclosan or acetone, the ethyl alcohol of resin reaction etc., so
Volatilization removes solvent naturally afterwards.
The present invention also provides application of the above-mentioned modified polypropylene resin in antibacterial resin material.
In modified polypropylene resin prepared by the present invention, triclosan functional structure is connected to acrylic resin point with chemical bond
In son, there are lasting antibacterial functions, triclosan antimicrobial agent is blended or sprayed in acrylic resin with conventional in use
Method compare, the advantage is that triclosan ingredient is not lost, can not only decline to avoid acrylic resin anti-microbial property, but also will not
It pollutes the environment.
Detailed description of the invention
Four width of attached drawing of the present invention,
Fig. 1 is the nucleus magnetic hydrogen spectrum spectrogram of modified triclosan A；
The nuclear-magnetism carbon spectrum spectrogram that Fig. 2 is modified triclosan A；
Fig. 3 is the Escherichia coli culture experiment result photo of acrylic resin；
Fig. 4 is that the thermal weight loss of acrylic resin tests (TGA) curve.
Specific embodiment
Following non-limiting embodiments can with a person of ordinary skill in the art will more fully understand the present invention, but not with
Any mode limits the present invention.
The preparation of modified triclosan
(1) after triclosan 14.5g vacuumize process being removed the water adsorbed in raw material, oxygen, it is dissolved in 80mL methylene chloride,
And 10mL triethylamine is added.In a nitrogen atmosphere, 7.2mL methacrylic chloride (being configured to solution with methylene chloride) gradually is added dropwise
To in above-mentioned Triclosan solution, reaction 4 hours is stirred at room temperature.After reaction, vacuum distillation removes methylene chloride, excessive propene
The low-boiling point liquids such as acyl chlorides, triethylamine.In being finally in triethylamine remaining in aqueous hydrochloric acid solution neutralized reaction product to solution ph
Property, after cleaning solution liquid separation, water removal, obtain the modified triclosan A of 4.3g.
The structural formula of modified triclosan A isWherein X has structure shown in (I) formula,
R1For methyl.
(2) after triclosan 2.9g vacuumize process being removed the water adsorbed in raw material, oxygen, it is dissolved in 80mL methylene chloride, and
5mL triethylamine is added.In a nitrogen atmosphere, above-mentioned Triclosan solution is dropwise added dropwise to the methylene chloride of 1.3mL oxalyl chloride
In middle solution, 0 DEG C is stirred to react 2 hours, is then heated to room temperature and is stirred for reaction 2 hours.After reaction, vacuum distillation removes
Low-boiling point liquid is removed, the triclosan intermediate product M of 1.7g chloride is obtained.1.4g product M is dissolved in methylene chloride, and is added
Enter 3mL triethylamine, in a nitrogen atmosphere, the 5- hydroxy-2-methyl -1- penten-3-one of 1.1 times of moles is added, is stirred at room temperature
Reaction 4 hours, after reaction, vacuum distillation remove low-boiling point liquid, finally with remaining in aqueous hydrochloric acid solution neutralized reaction product
Triethylamine to solution ph is in neutrality, and after cleaning solution liquid separation, water removal, obtains the modified triclosan B of 1.9g.
The structure of modified triclosan B be forWherein X has structure shown in (II) formula,
R1For methyl, R2For COCO2CH2CH2。
(3) after triclosan 14g vacuumize process being removed the water adsorbed in raw material, oxygen, it is dissolved in 80mL methylene chloride, and
10mL triethylamine is added.In a nitrogen atmosphere, it is gradually added into NaH, until bubble-free generates.Take maleic anhydride 20g 50mL tetrahydro
Furans dissolution, is gradually added into reaction flask with constant pressure funnel, and reaction 6 hours is stirred at room temperature.After reaction, quality is added
The dilute sulfuric acid that concentration is 5% adjusts pH value to 4-5.Reaction solution is poured into separatory funnel to be added and is extracted with the isometric water of solvent
Product is taken, the modified triclosan C of 5.7g is obtained.
The structure of modified triclosan C be forWherein X has and ties shown in (III) formula
Structure, R3For H.
Comparative example 1
In terms of mass parts, by 100 parts of polypropylene, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168,0.2 part of initiator mistake
Oxidation diisopropylbenzene (DIPB) is mixed, and is then added mixture in double screw extruder and is melted.The melt zone of extruder
Temperature is 160 DEG C, and conversion zone temperature is 190 DEG C, and melt conveying zone temperature is 200 DEG C, and discharge port temperature is 180 DEG C, and screw rod is set
Determining revolving speed is 150rpm, squeezes out product by circulator bath cooling and pelletizing, obtains final product.
Embodiment 1
In terms of mass parts, by 100 parts of polypropylene, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168,0.1 part of initiator mistake
Oxidation diisopropylbenzene (DIPB), 5 parts of modified triclosan A are mixed, and mixture is obtained.Then add mixture in double screw extruder
It is melted.The melt zone temperature of extruder is 160 DEG C, and conversion zone temperature is 190 DEG C, and melt conveying zone temperature is 200 DEG C, out
Material mouth temperature is 180 DEG C, and screw rod setting speed is 150rpm, squeezes out product by circulator bath cooling and pelletizing, obtains product.
With dimethylbenzene after completely dissolution, then polymer powder is precipitated in product, and filtration product is simultaneously removed with ethanol washing not anti-
The modification triclosan A answered, obtains the modified polypropylene resin of triclosan functional group Yu acrylic resin chemical bonds, and measurement should
The mass content of Cl is 1.1% in modified polypropylene resin.
Embodiment 2
In terms of mass parts, by 100 parts of polypropylene, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168,0.1 part of initiator mistake
Oxidation diisopropylbenzene (DIPB), 10 parts of modified triclosan A are mixed, and mixture is obtained.Then add mixture to double screw extruder
In melted.The melt zone temperature of extruder is 160 DEG C, and conversion zone temperature is 190 DEG C, and melt conveying zone temperature is 200 DEG C,
Discharge port temperature is 180 DEG C, and screw rod setting speed is 150rpm, squeezes out product by circulator bath cooling and pelletizing, is produced
Object.
With dimethylbenzene after completely dissolution, then polymer powder is precipitated in product, and filtration product is simultaneously removed with ethanol washing not anti-
The modification triclosan A answered, obtains the modified polypropylene resin of triclosan functional group Yu acrylic resin chemical bonds, and measurement should
The mass content of Cl is 1.9% in modified polypropylene resin.
Embodiment 3
In terms of mass parts, by 100 parts of polypropylene, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168,0.2 part of initiator mistake
Oxidation diisopropylbenzene (DIPB), 10 parts of modified triclosan A are mixed, and mixture is obtained.Then add mixture to double screw extruder
In melted.The melt zone temperature of extruder is 160 DEG C, and conversion zone temperature is 190 DEG C, and melt conveying zone temperature is 200 DEG C,
Discharge port temperature is 180 DEG C, and screw rod setting speed is 150rpm, squeezes out product by circulator bath cooling and pelletizing, is produced
Object.
With dimethylbenzene after completely dissolution, then polymer powder is precipitated in product, and filtration product is simultaneously removed with ethanol washing not anti-
The modification triclosan A answered, obtains the modified polypropylene resin of triclosan functional group Yu acrylic resin chemical bonds, and measurement should
The mass content of Cl is 2.4% in modified polypropylene resin.
Embodiment 4
In terms of mass parts, by 100 parts of polypropylene, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168,0.2 part of initiator mistake
Oxidation diisopropylbenzene (DIPB), 20 parts of modified triclosan A are mixed, and mixture is obtained.Then add mixture to double screw extruder
In melted.The melt zone temperature of extruder is 160 DEG C, and conversion zone temperature is 190 DEG C, and melt conveying zone temperature is 200 DEG C,
Discharge port temperature is 180 DEG C, and screw rod setting speed is 150rpm, squeezes out product by circulator bath cooling and pelletizing, is produced
Object.
With dimethylbenzene after completely dissolution, then polymer powder is precipitated in product, and filtration product is simultaneously removed with ethanol washing not anti-
The modification triclosan A answered, obtains the modified polypropylene resin of triclosan functional group Yu acrylic resin chemical bonds, and measurement should
The mass content of Cl is 4.5% in modified polypropylene resin.
Embodiment 5
In terms of mass parts, by 100 parts of polypropylene, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168,0.2 part of initiator mistake
Oxidation dibenzoyl, 10 parts of modified triclosan B are mixed, and mixture is obtained.Then add mixture to double screw extruder
In melted.The melt zone temperature of extruder is 160 DEG C, and conversion zone temperature is 190 DEG C, and melt conveying zone temperature is 200 DEG C,
Discharge port temperature is 180 DEG C, and screw rod setting speed is 150rpm, squeezes out product by circulator bath cooling and pelletizing, is produced
Object.
With dimethylbenzene after completely dissolution, then polymer powder is precipitated in product, and filtration product is simultaneously removed with ethanol washing not anti-
The modification triclosan B answered, obtains the modified polypropylene resin of triclosan functional group Yu acrylic resin chemical bonds, and measurement should
The mass content of Cl is 2.0% in modified polypropylene resin.
Embodiment 6
In terms of mass parts, by 100 parts of polypropylene, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168,0.2 part of initiator mistake
Oxidation dibenzoyl, 10 parts of modified triclosan C are mixed, and mixture is obtained.Then add mixture to double screw extruder
In melted.The melt zone temperature of extruder is 160 DEG C, and conversion zone temperature is 190 DEG C, and melt conveying zone temperature is 200 DEG C,
Discharge port temperature is 180 DEG C, and screw rod setting speed is 150rpm, squeezes out product by circulator bath cooling and pelletizing, is produced
Object.
With dimethylbenzene after completely dissolution, then polymer powder is precipitated in product, and filtration product is simultaneously removed with ethanol washing not anti-
The modification triclosan C answered, obtains the modified polypropylene resin of triclosan functional group Yu acrylic resin chemical bonds, and measurement should
The mass content of Cl is 2.1% in modified polypropylene resin.
Embodiment 7
In terms of mass parts, by 100 parts of polypropylene, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168,0.2 part of initiator mistake
Oxidation diisopropylbenzene (DIPB), 20 parts of modified triclosan C are mixed, and mixture is obtained.Then add mixture to double screw extruder
In melted.The melt zone temperature of extruder is 160 DEG C, and conversion zone temperature is 190 DEG C, and melt conveying zone temperature is 200 DEG C,
Discharge port temperature is 180 DEG C, and screw rod setting speed is 150rpm, squeezes out product by circulator bath cooling and pelletizing, is produced
Object.
With dimethylbenzene after completely dissolution, then polymer powder is precipitated in product, and filtration product is simultaneously removed with ethanol washing not anti-
The modification triclosan C answered, obtains the modified polypropylene resin of triclosan functional group Yu acrylic resin chemical bonds, and measurement should
The mass content of Cl is 3.8% in modified polypropylene resin.
Embodiment 8
In terms of mass parts, by 100 parts of polypropylene, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168,0.3 part of initiator mistake
Oxidation diisopropylbenzene (DIPB), 20 parts of modified triclosan A are mixed, and mixture is obtained.Then add mixture to double screw extruder
In melted.The melt zone temperature of extruder is 160 DEG C, and conversion zone temperature is 190 DEG C, and melt conveying zone temperature is 200 DEG C,
Discharge port temperature is 180 DEG C, and screw rod setting speed is 150rpm, squeezes out product by circulator bath cooling and pelletizing, is produced
Object.
With dimethylbenzene after completely dissolution, then polymer powder is precipitated in product, and filtration product is simultaneously removed with ethanol washing not anti-
The modification triclosan A answered, obtains the modified polypropylene resin of triclosan functional group Yu acrylic resin chemical bonds, and measurement should
The mass content of Cl is 4.8% in modified polypropylene resin.
Embodiment 9
In terms of mass parts, by 100 parts of polypropylene, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168,0.3 part of initiator mistake
Oxidation diisopropylbenzene (DIPB), 30 parts of modified trichlorine raw compounds A are mixed, and mixture is obtained, and the structure of compound A is formula (I) shown,
Wherein R1For methyl.It then adds mixture in double screw extruder and is melted.The melt zone temperature of extruder is 160
DEG C, conversion zone temperature is 190 DEG C, and melt conveying zone temperature is 200 DEG C, and discharge port temperature is 180 DEG C, and screw rod setting speed is
150rpm squeezes out product by circulator bath cooling and pelletizing, obtains product.
With dimethylbenzene after completely dissolution, then polymer powder is precipitated in product, and filtration product is simultaneously removed with ethanol washing not anti-
The modification triclosan A answered, obtains the modified polypropylene resin of triclosan functional group Yu acrylic resin chemical bonds, and measurement should
The mass content of Cl is 6.6% in modified polypropylene resin.
The performance test of modified polypropylene resin prepared by above-described embodiment is listed in the table below 1.
Table 1
Table 1 statistics indicate that, modified triclosan can effectively with polypropylene molecule chain combination, by adjusting experiment ginseng
Number, the reaction efficiency of modified triclosan illustrate, effect high-efficient using the modified polypropene of this method preparation up to 70%~96%
Fruit is good.
Modified polypropylene resin by inhibition zone measurement method evaluates its antibiotic property, and (test method is medical referring to triclosan coating
The production of polypropylene antibacterial mesh sheet and general surgery of performance study China magazine, 2009,18,932-937), choose typical big
Enterobacteria and staphylococcus aureus are cultivated, as a result, it has been found that modified polypropylene resin prepared by the present invention, sample surfaces
There is inhibition zone appearance without apparent bacterial growth, and around sample, (Escherichia coli culture experiment) as shown in Fig. 3, it was demonstrated that this
The modified polypropylene resin of invention preparation has from antibacterial functions.And the polypropylene specimen (comparative example 1) of non-grafted triclosan is no
With antibacterial effect.
The thermal stability of modified polypropylene resin is analyzed by thermal gravimetric analyzer (TGA), and test condition is heating
10 DEG C/min of rate.The thermal decomposition initial temperature of sample is at 350 DEG C or more, as shown in Fig. 4, with plain polypropylene resin
(comparative example 1) quite, this illustrates that modified polypropylene resin prepared by the present invention has good thermal stability, is suitable for all kinds of heat
Method for processing forming.
Claims (9)
1. a kind of modified polypropylene resin, which is characterized in that have the following structure:
PP-g-T
Wherein, PP is polypropylene, and T is modified triclosan；
Number-average molecular weight 5000~2,000,000 of the modified polypropylene resin；
The modification triclosan has following structure:
Wherein, X is any structure in lower formula (I)~formula (III)；
In formula, R1For H or CH3, R2For the aliphatic containing 1~12 carbon atom or aromatic group or its substituent, R3For H or
Aliphatic or aromatic group containing 1~12 carbon atom.
2. modified polypropylene resin according to claim 1, which is characterized in that in the modified polypropylene resin, gather
The mass percentage of propylene is 70~99.9%, and the mass percentage of modified triclosan is 0.1~30%.
3. the preparation method of modified polypropylene resin described in claim 1, which is characterized in that with polypropylene, modified triclosan, draw
Hair agent, heat stabilizer are raw material, are prepared using melt grafting；The mass ratio of the polypropylene and modified triclosan is 99.9:
0.1~70:30；The mass ratio of the polypropylene and heat stabilizer is 100:0.1~100:1；The polypropylene and initiator
Mass ratio is 100:0.01~100:1.
4. the preparation method of modified polypropylene resin according to claim 3, which is characterized in that the polypropylene and modified three
The raw mass ratio of chlorine is 98:2~90:10；The mass ratio of the polypropylene and heat stabilizer is 100:0.2~100:0.5；It is described
The mass ratio of polypropylene and initiator is 100:0.05~100:0.5.
5. the preparation method of modified polypropylene resin according to claim 3, which is characterized in that the heat stabilizer be selected from by
Hinder at least one of the macromolecular antioxidant of phenols, phosphorous acid kind antioxidant or alkyl ester kind antioxidant.
6. the preparation method of modified polypropylene resin according to claim 3, which is characterized in that the initiator is selected from organic
Peroxide or azo-initiator.
7. the preparation method of modified polypropylene resin according to claim 3, which is characterized in that the preparation method include with
Lower step:
1) acrylic resin, modified triclosan, heat stabilizer, initiator are subjected to mechanical mixture, obtain premixing raw material；
2) the premixing raw material is added in mixer or Reaction extrusion equipment, is reacted at 160 DEG C or more；
3) it is cooling by circulator bath to squeeze out product.
8. the preparation method of modified polypropylene resin according to claim 7, which is characterized in that the reaction that the method uses
Property extrusion equipment be single screw extrusion machine, any one in double screw extruder.
9. modified polypropene tree made from preparation method described in modified polypropylene resin described in claim 1 or claim 3
Application of the rouge in antibacterial resin material.
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| CN109294149A (en) * | 2018-09-16 | 2019-02-01 | 郑州成济堂生物科技有限公司 | A kind of preparation method of durable antibiotic polypropylene plastic cup |
| CN111440406B (en) * | 2020-04-09 | 2023-01-17 | 安徽松泰包装材料有限公司 | Antibacterial food packaging film and processing technology thereof |
| CN114030208A (en) * | 2021-12-14 | 2022-02-11 | 广东义发实业股份有限公司 | Antibacterial degradable functional film forming and processing technology and equipment thereof |
| CN114349634B (en) * | 2022-01-06 | 2024-08-13 | 黄河三角洲京博化工研究院有限公司 | Preparation method of reactive organic antibacterial agent |
| CN115057968B (en) * | 2022-06-28 | 2024-02-13 | 黄河三角洲京博化工研究院有限公司 | Antibacterial polypropylene resin and preparation method thereof |
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