CN107163377B - A kind of Antibacterial polypropylene composition and preparation method thereof, application - Google Patents
A kind of Antibacterial polypropylene composition and preparation method thereof, application Download PDFInfo
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- CN107163377B CN107163377B CN201710355087.8A CN201710355087A CN107163377B CN 107163377 B CN107163377 B CN 107163377B CN 201710355087 A CN201710355087 A CN 201710355087A CN 107163377 B CN107163377 B CN 107163377B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76531—Temperature
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/06—Polymer mixtures characterised by other features having improved processability or containing aids for moulding methods
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Abstract
The present invention proposes a kind of Antibacterial polypropylene composition, is prepared according to mass parts by following raw material：100 parts of acrylic resin, 15~30 parts of filler, 0.5~1.2 part of antiseptic, 3~8 parts of toughener, 0.2~0.5 part of coupling agent, 0.1~0.3 part of antioxidant；Filler is nanomete talc powder；Antiseptic is with the attapulgite modified carrying silver antimicrobials for matrix；Toughener is styrene itaconic acid acrylic copolymer；Coupling agent is 3 aminopropyl triethoxysilanes；Antioxidant is antioxidant 1010 and antioxidant 618 according to mass ratio 1:1 mixture being mixed to get.A kind of Antibacterial polypropylene composition and preparation method thereof prepares carrying silver antimicrobials using modified attapulgite, have many advantages, such as that good dispersion, particle diameter distribution are uniform, stability is high and manufacturing cost is low, children dinning chair is prepared using Antibacterial polypropylene composition, which can reach 98% or more to the antibiotic rate of three kinds of Escherichia coli, mould, staphylococcus aureus bacteriums.
Description
Technical field
The invention belongs to antibiotic plastic preparation field more particularly to a kind of Antibacterial polypropylene composition and its preparation sides
Method, application.
Background technology
In recent years, as the improvement of people's living standards, health and health consciousness constantly enhance, plastic products are proposed
The requirement of antibacterial, the especially articles for daily use of relationship child health safety, such as children dinning chair, toy.Polypropylene is as general
Most widely used one of kind in plastics carries out it research hotspot in antibacterial modified always antibacterial field.
The preparation of Antibacterial polypropylene composition, mainly by the way that a certain amount of antiseptic is added in polypropylene granulation process
To realize.There are many type of antiseptic, include mainly inorganic antiseptic, organic antiseptic two major classes.Organic antibacterial agent has
Have the advantages that antibacterial speed is fast, range is wide, but there is also poor heat resistance, easily exudation, not wash resistant, service life is short, toxicity compared with
Greatly, the deficiencies of harmful is used for a long time.Inorganic antiseptic has that antibacterial wide spectrum, safety be good, heat-resist, durability
The advantages that good, and it is easy to industrialization, becomes the research hotspot in recent antibiotic plastic field.
Inorganic antiseptic is the sterilization or the worth one kind obtained of bacteriostasis using the metals such as silver, copper, zinc and its ion
Antiseptic.In numerous inorganic antiseptics, silver has many advantages, such as that broad-spectrum antibacterial property, sterilization of high efficiency, security performance are high so that
Silver-series antibacterial agent becomes the research hotspot in inorganic antiseptic.Silver-series antibacterial agent on the one hand can be with protein, enzyme equimolecular chela
It closes or adsorbs, hinder the eubolism of bacterium；Another aspect trace silver can activate the oxygen in air or water, generate activity
Oxonium ion occurs oxidation reaction with bacterium and gas chromatography, the phosphodiester bond between the base in DNA chain is caused to be broken,
The DNA replication dna for destroying microbial cell, plays the role of multiple inhibiting or eliminating bacteria, successfully overcoming organic antibacterial agent makes
The shortcomings of with short life, poor heat resistance, relatively narrow application range.
The attapulgite rich reserves in China, storage capacity account for more than half of whole world gross storage capacity, derive from a wealth of sources,
It is of low cost.Attapulgite has unique chain layered crystal structure and special pore passage structure, interfacial property and larger
Specific surface area becomes a kind of ideal carrier.But in attapulgite tcrude ore contain a large amount of impurity, as montmorillonite,
Illite and carbonate etc., the presence of impurity influence the absorption property of attapulgite, need by purification and modification ability
Attapulgite is set to be used as high-grade sorbing material.
Therefore, to overcome the defect present in above technical scheme, the present invention propose a kind of Antibacterial polypropylene composition and
Preparation method, application.
Invention content
The purpose of the present invention is to provide a kind of Antibacterial polypropylene composition with and preparation method thereof, application.
The present invention uses following technical scheme：A kind of Antibacterial polypropylene composition is prepared by following raw material according to mass parts
It forms：100 parts of acrylic resin, 15~30 parts of filler, 0.5~1.2 part of antiseptic, 3~8 parts of toughener, coupling agent 0.2~
0.5 part, 0.1~0.3 part of antioxidant；The filler is nanomete talc powder；The antiseptic is to be with attapulgite modified
The carrying silver antimicrobials of matrix；The toughener is styrene-itaconic acid-propenoic acid copolymer；The coupling agent is 3- aminopropyls
Triethoxysilane；The antioxidant is antioxidant 1010 and antioxidant 618 according to mass ratio 1:1 mixing being mixed to get
Object.
As a further improvement on the present invention, it is prepared according to mass parts by following raw material：100 parts of acrylic resin,
15 parts of filler, 0.5 part of antiseptic, 3 parts of toughener, 0.2 part of coupling agent, 0.1 part of antioxidant.
As a further improvement on the present invention, it is prepared according to mass parts by following raw material：100 parts of acrylic resin,
20 parts of filler, 0.8 part of antiseptic, 5 parts of toughener, 0.3 part of coupling agent, 0.2 part of antioxidant.
As a further improvement on the present invention, it is prepared according to mass parts by following raw material：100 parts of acrylic resin,
30 parts of filler, 1.2 parts of antiseptic, 8 parts of toughener, 0.5 part of coupling agent, 0.3 part of antioxidant.
Also propose a kind of Antibacterial polypropylene composition with and preparation method thereof, include the following steps：
Step D1：The modification of attapulgite：Include the following steps：
Step S1：The attapulgite for weighing 10~30g is placed in beaker, and the concentration of 80~120mL is added into beaker
The first mixed liquor is formed for 20~30% hydrochloric acid solution, the first mixed liquor is transferred in hydrothermal reaction kettle after stirring evenly,
Hydrothermal reaction kettle is placed in 4~6h of placement under 50~80 DEG C of thermal and hydric environments, hydrothermal reaction kettle is positioned over 25 DEG C at room temperature later
It is cooling, it is rear using attapulgite is isolated by the way of centrifugation, be used in combination deionized water wash repeatedly attapulgite up to filtrate pH
For neutrality, attapulgite is placed in the environment of 105~130 DEG C later and dries, grind the attapulgite for obtaining acid and being modified；
Step S2：A certain amount of amino acid ion liquid and tetrabutyl titanate are slowly dropped to the phosphoric acid solution of 1mol/L
The first mixed solution of middle formation so that the concentration of amino acid ion liquid and tetrabutyl titanate in the first mixed solution is respectively
0.10~0.30mol/L and 0.50~1.0mol/L, is stirred after the first mixed solution 30min and static aging at room temperature at 25 DEG C
3~5h；
Step S3：The modified attapulgite of the acid prepared in step S1 is distributed in deionized water and is configured to mass concentration
For 1~3% suspension, the first mixed solution obtained in step S2 is then added thereto and forms the second mixed liquor, wherein
The amount of the titanium attapulgite modified with acid is determined according to 30mmol/g, and the second mixed liquor is vigorously stirred 2 at room temperature at 25 DEG C
It is transferred to after~4h in 90~120 DEG C of hydrothermal reaction kettle and continues with 4~6h, the second mixed liquor is centrifuged later, is obtained
Sediment is washed repeatedly with deionized water until the pH value of gained filtrate is neutral, dry 6~12h under 105~120 DEG C of environment
Afterwards, continue 3~6h of roasting in the environment of transferring them to 450~650 DEG C, you can obtain modified attapulgite；
Step D2：The load of active component：Using the method for hypergravity assistant soakage, it is as follows：At 25 DEG C
Under room temperature, a certain amount of modified attapulgite is taken to be placed in formation third in the silver nitrate solution of 0.05~0.3mol/L mixed
Liquid is closed, after stirring 30min~2h, third mixed liquor is transferred in hypergravity packed bed, in 50~200 times of acceleration of gravity
After handling 2~4h under the conditions of hypergravity, placed under 500 DEG C of environment after third mixed liquor is evaporated under 105~120 DEG C of environment
3~4h obtains the carrying silver antimicrobials using attapulgite as matrix；
Step D3：The preparation of Antibacterial polypropylene composition：Following raw material is according to mass parts：100 parts of acrylic resin, filling
15~30 parts of agent, 0.5~1.2 part of antiseptic, 3~8 parts of toughener, 0.2~0.5 part of coupling agent, 0.1~0.3 part of antioxidant
Mixing；It puts into double screw extruder, is 235-275 DEG C in barrel temperature, is granulated under the conditions of screw speed 320-350r/min,
Obtain master batch shape Antibacterial polypropylene composition, wherein the filler is nanomete talc powder；The antiseptic is obtained by step D2
Arrive using attapulgite as the carrying silver antimicrobials of matrix；The toughener is styrene-itaconic acid-propenoic acid copolymer；It is described
Coupling agent is 3- aminopropyl triethoxysilanes；The antioxidant is antioxidant 1010 and antioxidant 618 is according to weight ratio
1:1 mixture being mixed to get.
As a further improvement on the present invention, the amino acid ion liquid in step S2 is that 1- butyl -3- methylimidazoles are sweet
One or more of propylhomoserin salt, 1- butyl -3- methylimidazoles lysine salt or 1- butyl -3- methylimidazole glutamates.
A kind of application of Antibacterial polypropylene composition prepares children dinning chair using a kind of Antibacterial polypropylene composition：It will be by
Master batch shape Antibacterial polypropylene composition made from preparation method according to a kind of Antibacterial polypropylene composition described in claim 5 exists
After being dried in vacuo 4-6h at 95-105 DEG C, input has been set in the injection molding machine of temperature, and injection molding, molding, demoulding obtain kid's meal
Chair.
As a further improvement on the present invention, the Temperature Distribution of injection molding machine bringing-up section is：280-290 DEG C of first segment, second
270-280 DEG C of section, 260-270 DEG C of third section, the 4th section 250-260 DEG C.
A kind of Antibacterial polypropylene composition and preparation method thereof loads carrying silver antimicrobials using modified attapulgite,
Carrying silver antimicrobials good dispersion, particle diameter distribution are uniform, stability is high and manufacturing cost is low, are used for using Antibacterial polypropylene composition
Children dinning chair is prepared, which can reach the antibiotic rate of three kinds of Escherichia coli, mould, staphylococcus aureus bacteriums
98% or more.
Specific implementation mode
In order to make those skilled in the art more fully understand technical scheme of the present invention, and make the present invention features described above,
Purpose and advantage are more clear understandable, it is to be appreciated that embodiment is merely to illustrate the present invention rather than the limitation present invention
Range.
Product embodiments 1
A kind of Antibacterial polypropylene composition of the present embodiment is prepared by following raw material according to mass parts：Acrylic resin
100 parts, 15 parts of filler, 0.5 part of antiseptic, 3 parts of toughener, 0.2 part of coupling agent, 0.1 part of antioxidant；The filler is
Nanomete talc powder；The antiseptic is with the attapulgite modified carrying silver antimicrobials for matrix；The toughener is styrene-clothing
Health acid-acrylic copolymer；The coupling agent is 3- aminopropyl triethoxysilanes；The antioxidant be antioxidant 1010 and
Antioxidant 618 is according to mass ratio 1:1 mixture being mixed to get.
Product embodiments 2
A kind of Antibacterial polypropylene composition of the present embodiment is prepared by following raw material according to mass parts：Acrylic resin
100 parts, 20 parts of filler, 0.8 part of antiseptic, 5 parts of toughener, 0.3 part of coupling agent, 0.2 part of antioxidant；The filler is
Nanomete talc powder；The antiseptic is with the attapulgite modified carrying silver antimicrobials for matrix；The toughener is styrene-clothing
Health acid-acrylic copolymer；The coupling agent is 3- aminopropyl triethoxysilanes；The antioxidant be antioxidant 1010 and
Antioxidant 618 is according to mass ratio 1:1 mixture being mixed to get.
Product embodiments 3
A kind of Antibacterial polypropylene composition of the present embodiment is prepared by following raw material according to mass parts：Acrylic resin
100 parts, 30 parts of filler, 1.2 parts of antiseptic, 8 parts of toughener, 0.5 part of coupling agent, 0.3 part of antioxidant；The filler is
Nanomete talc powder；The antiseptic is with the attapulgite modified carrying silver antimicrobials for matrix；The toughener is styrene-clothing
Health acid-acrylic copolymer；The coupling agent is 3- aminopropyl triethoxysilanes；The antioxidant be antioxidant 1010 and
Antioxidant 618 is according to mass ratio 1:1 mixture being mixed to get.
Embodiment of the method
The said goods embodiment 1,2,3 can be made according to following preparation method, a kind of system of Antibacterial polypropylene composition
Preparation Method includes the following steps：
Step D1：The modification of attapulgite：Include the following steps：
Step S1：The attapulgite for weighing 10~30g is placed in beaker, and the concentration of 80~120mL is added into beaker
The first mixed liquor is formed for 20~30% hydrochloric acid solution, the first mixed liquor is transferred in hydrothermal reaction kettle after stirring evenly,
Hydrothermal reaction kettle is placed in 4~6h of placement under 50~80 DEG C of thermal and hydric environments, hydrothermal reaction kettle is positioned over 25 DEG C at room temperature later
It is cooling, it is rear using attapulgite is isolated by the way of centrifugation, be used in combination deionized water wash repeatedly attapulgite up to filtrate pH
For neutrality, attapulgite is placed in the environment of 105~130 DEG C later and dries, grind the attapulgite for obtaining acid and being modified；
Step S2：A certain amount of amino acid ion liquid and tetrabutyl titanate are slowly dropped to the phosphoric acid solution of 1mol/L
The first mixed solution of middle formation so that the concentration of amino acid ion liquid and tetrabutyl titanate in the first mixed solution is respectively
0.10~0.30mol/L and 0.50~1.0mol/L, is stirred after the first mixed solution 30min and static aging at room temperature at 25 DEG C
3~5h；
Step S3：The modified attapulgite of the acid prepared in step S1 is distributed in deionized water and is configured to mass concentration
For 1~3% suspension, the first mixed solution obtained in step S2 is then added thereto and forms the second mixed liquor, wherein
The amount of the titanium attapulgite modified with acid is determined according to 30mmol/g, and the second mixed liquor is vigorously stirred 2 at room temperature at 25 DEG C
It is transferred to after~4h in 90~120 DEG C of hydrothermal reaction kettle and continues with 4~6h, the second mixed liquor is centrifuged later, is obtained
Sediment is washed repeatedly with deionized water until the pH value of gained filtrate is neutral, dry 6~12h under 105~120 DEG C of environment
Afterwards, continue 3~6h of roasting in the environment of transferring them to 450~650 DEG C, you can obtain modified attapulgite；
Step D2：The load of active component：Using the method for hypergravity assistant soakage, it is as follows：At 25 DEG C
Under room temperature, a certain amount of modified attapulgite is taken to be placed in formation third in the silver nitrate solution of 0.05~0.3mol/L mixed
Liquid is closed, after stirring 30min~2h, third mixed liquor is transferred in hypergravity packed bed, in 50~200 times of acceleration of gravity
After handling 2~4h under the conditions of hypergravity, placed under 500 DEG C of environment after third mixed liquor is evaporated under 105~120 DEG C of environment
3~4h obtains the carrying silver antimicrobials using attapulgite as matrix；
Step D3：The preparation of Antibacterial polypropylene composition：Following raw material is according to mass parts：100 parts of acrylic resin, filling
15~30 parts of agent, 0.5~1.2 part of antiseptic, 3~8 parts of toughener, 0.2~0.5 part of coupling agent, 0.1~0.3 part of antioxidant
Mixing；It puts into double screw extruder, is 235-275 DEG C in barrel temperature, is granulated under the conditions of screw speed 320-350r/min,
Obtain master batch shape Antibacterial polypropylene composition, wherein filler is nanomete talc powder；Antiseptic is that step D2 is obtained with recessed
Convex stick soil is the carrying silver antimicrobials of matrix；Toughener is styrene-itaconic acid-propenoic acid copolymer；Coupling agent is 3- aminopropyls
Triethoxysilane；It according to weight ratio is 1 that antioxidant, which is antioxidant 1010 and antioxidant 618,:1 mixture being mixed to get.
Wherein, the amino acid ion liquid in step S2 is 1- butyl -3- methylimidazoles glycinate, 1- butyl -3- first
One or more of base imidazoles lysine salt or 1- butyl -3- methylimidazole glutamates.
Application Example
Children dinning chair is prepared using a kind of Antibacterial polypropylene composition：According to a kind of above-mentioned Antibacterial polypropylene composition
After master batch shape Antibacterial polypropylene composition made from preparation method is dried in vacuo 4-6h at 95-105 DEG C, input has set temperature
In the injection molding machine of degree, injection molding, molding, demoulding obtain children dinning chair, wherein the Temperature Distribution of injection molding machine bringing-up section is：First segment
280-290 DEG C, 270-280 DEG C of second segment, 260-270 DEG C of third section, the 4th section 250-260 DEG C.
Product embodiments 1,2,3 are according to national standard GB21551.2-2010《The antibacterial of household and similar applications electric appliance, degerming,
The particular/special requirement of purification function anti-biotic material》Antibacterial detection is carried out, corresponding index see the table below 1.
The antibiotic rate of 1 Antibacterial polypropylene composition embodiment 1,2,3 of table
| Index | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Escherichia coli antibiotic rate | 98.56% | 98.34% | 99.18% |
| Mould antibiotic rate | 98.23% | 98.98% | 99.01% |
| Staphylococcus aureus antibiotic rate | 99.47% | 99.54% | 99.07% |
A kind of Antibacterial polypropylene composition and preparation method thereof prepares carrying silver antimicrobials using modified attapulgite,
With good dispersion, particle diameter distribution is uniform, stability is high and it is at low cost many advantages, such as, by silver load to modified concave convex rod
Antibacterial effect after on soil is significantly improved, the reason is that, this aspect is conducive to absorption of the bacterium on attapulgite,
The contact area of antiseptic and bacterium is improved, silver on the other hand can be made to obtain high degree of dispersion on carrier, and further reinforcing is anti-
Bacterium effect.
A kind of application of Antibacterial polypropylene composition prepares children dinning chair using Antibacterial polypropylene composition, prepared to obtain
Children dinning chair have the advantages that broad spectrum antibacterial and efficient, which can often to touch in daily life big
The various bacteriums such as enterobacteria, mould, staphylococcus aureus lose activity in 10 seconds, to Escherichia coli, mould, golden yellow Portugal
The antibiotic rate of three kinds of bacteriums of grape coccus can reach 98% or more.
The above embodiment is used for illustrative purposes only, and is not limitation of the present invention, related technical field
Those of ordinary skill without departing from the spirit and scope of the present invention can be with various changes can be made and modification, therefore institute
There is equivalent technical solution that should also belong to scope of the invention.
Claims (3)
1. a kind of preparation method of Antibacterial polypropylene composition, it is characterised in that：Antibacterial polypropylene composition is pressed by following raw material
It is prepared according to mass parts：100 parts of acrylic resin, 15~30 parts of filler, 0.5~1.2 part of antiseptic, toughener 3~8
Part, 0.2~0.5 part of coupling agent, 0.1~0.3 part of antioxidant；The preparation method includes the following steps：
Step D1：The modification of attapulgite：Include the following steps：
Step S1：The attapulgite for weighing 10~30g is placed in beaker, and a concentration of the 20 of 80~120mL is added into beaker
~30% hydrochloric acid solution forms the first mixed liquor, the first mixed liquor is transferred in hydrothermal reaction kettle after stirring evenly, by water
Thermal response kettle is placed in 4~6h of placement under 50~80 DEG C of thermal and hydric environments, and hydrothermal reaction kettle is positioned over 25 DEG C later and is cooled down at room temperature,
Attapulgite is isolated by the way of centrifugation afterwards, deionized water is used in combination to wash attapulgite repeatedly in the pH of filtrate is
Property, attapulgite is placed in the environment of 105~130 DEG C later and dries, grind the attapulgite for obtaining acid and being modified；
Step S2：A certain amount of amino acid ion liquid and tetrabutyl titanate are slowly dropped to shape in the phosphoric acid solution of 1mol/L
At the first mixed solution so that the concentration of amino acid ion liquid and tetrabutyl titanate in the first mixed solution is respectively 0.10
~0.30mol/L and 0.50~1.0mol/L, stirred at room temperature at 25 DEG C after the first mixed solution 30min and static aging 3~
5h；
Step S3：It is 1 that the modified attapulgite of the acid prepared in step S1, which is distributed in deionized water, and is configured to mass concentration
Then~3% suspension is added the first mixed solution obtained in step S2 and forms the second mixed liquor thereto, wherein titanium with
The amount of the modified attapulgite of acid is determined according to 30mmol/g, and the second mixed liquor is vigorously stirred 2~4h at room temperature at 25 DEG C
It is transferred to afterwards in 90~120 DEG C of hydrothermal reaction kettle and continues with 4~6h, later centrifuge the second mixed liquor, obtained precipitation
Object is washed repeatedly with deionized water until the pH value of gained filtrate is neutral, under 105~120 DEG C of environment after dry 6~12h,
Continue 3~6h of roasting in the environment of transferring them to 450~650 DEG C, you can obtain modified attapulgite；
Step D2：The load of active component：Using the method for hypergravity assistant soakage, it is as follows：In 25 DEG C of room temperatures
Under the conditions of, it takes a certain amount of modified attapulgite to be placed in the silver nitrate solution of 0.05~0.3mol/L and forms third mixing
Third mixed liquor is transferred in hypergravity packed bed by liquid after stirring 30min~2h, in the super of 50~200 times of acceleration of gravity
After handling 2~4h under gravity condition, 3 are placed under 500 DEG C of environment after third mixed liquor is evaporated under 105~120 DEG C of environment
~4h obtains the carrying silver antimicrobials using attapulgite as matrix；Step D3：The preparation of Antibacterial polypropylene composition：Following raw material
According to mass parts：100 parts of acrylic resin, 15~30 parts of filler, 0.5~1.2 part of antiseptic, 3~8 parts of toughener, coupling
0.1~0.3 part of 0.2~0.5 part of agent, antioxidant mixing；It puts into double screw extruder, is 235-275 DEG C in barrel temperature,
It is granulated under the conditions of screw speed 320-350r/min, obtains master batch shape Antibacterial polypropylene composition, wherein the filler is to receive
Rice talcum powder；The antiseptic is step D2 obtained using attapulgite as the carrying silver antimicrobials of matrix；The toughener is
Styrene-itaconic acid-propenoic acid copolymer；The coupling agent is 3- aminopropyl triethoxysilanes；The antioxidant is anti-
Oxygen agent 1010 and antioxidant 618 are 1 according to weight ratio:1 mixture being mixed to get；Amino acid ion liquid in step S2 is
1- butyl -3- methylimidazoles glycinate, 1- butyl -3- methylimidazoles lysine salt or 1- butyl -3- methylimidazole glutamic acid
One or more of salt.
2. a kind of application of Antibacterial polypropylene composition, it is characterised in that：Children are prepared using a kind of Antibacterial polypropylene composition
Dining chair：By master batch shape antibacterial poly- third made from a kind of preparation method of Antibacterial polypropylene composition described in accordance with the claim 1
After ene compositions are dried in vacuo 4-6h at 95-105 DEG C, input has been set in the injection molding machine of temperature, injection molding, molding, demoulding
Obtain children dinning chair.
3. a kind of application of Antibacterial polypropylene composition according to claim 2, it is characterised in that：Injection molding machine bringing-up section
Temperature Distribution is：280-290 DEG C of first segment, 270-280 DEG C of second segment, 260-270 DEG C of third section, the 4th section 250-260 DEG C.
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|---|---|---|---|---|
| CN108892473B (en) * | 2018-10-17 | 2021-01-22 | 福建省德化铠宇陶瓷有限公司 | Antibacterial domestic ceramic |
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