CN107778741A - Antibiotic plastic and preparation method thereof - Google Patents
Antibiotic plastic and preparation method thereof Download PDFInfo
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- CN107778741A CN107778741A CN201711000556.0A CN201711000556A CN107778741A CN 107778741 A CN107778741 A CN 107778741A CN 201711000556 A CN201711000556 A CN 201711000556A CN 107778741 A CN107778741 A CN 107778741A
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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
- C08L31/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid; Compositions of derivatives of such polymers
- C08L31/02—Homopolymers or copolymers of esters of monocarboxylic acids
- C08L31/04—Homopolymers or copolymers of vinyl acetate
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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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses antibiotic plastic and preparation method thereof, including：The silane coupler that polyvinyl acetate, polyurethane resin, antibiotic plastic filler, turpentine oil, vinyltrimethoxy silane, tricresyl phosphate and the trade mark are KH570 is kneaded, so that micelle is made；The micelle is added to progress extrusion molding in extruder the antibiotic plastic is made；Wherein, the antibiotic plastic filler is made by herbaceous plant, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, hydrotalcite, ferric stearate and silica；The extruder includes feeding section, stage casing and the extruder head being sequentially connected, and the operating temperature of the extruder is：105 110 DEG C of feeding section, 115 120 DEG C of stage casing, 180 195 DEG C of extruder head.The high mechanical strength of the antibiotic plastic, and can effectively suppress bacteria breed and then improve the fresh-keeping effect to food etc..
Description
Technical field
The present invention relates to field of plastic products, in particular it relates to a kind of antibiotic plastic and preparation method thereof.
Background technology
Plastic products species is various, and wherein preservative film is that a kind of plastic packing product preservative film is a kind of plastic products, leads to
Often it is made up using ethene by masterbatch of polymerisation, preservative film can be divided into three major types：The first is polyethylene, abbreviation PE；Second
It is polyvinyl chloride to plant, abbreviation PVC；The third is polyvinylidene chloride, abbreviation PVDC.
The occasions such as microwave food heating, refrigerator food preserve, fresh and prepared food packaging, family life, supermarket sales field,
Hotel and industrial food packaging applications are all widely used.
Preservative film with its it is convenient, economical, attractive in appearance the advantages of it is extensively popular with consumers.But with the frequency using preservative film
Rate and use range, and higher requirement is proposed to fresh-keeping film strength and antibacterial, fresh keeping property.Especially to summer, disease
Bacterium easily grows, and the storage of many foods is all the intervention for relying on preservative film and refrigerator in family life, but the matter of preservative film
Amount can also directly influence the freshness of food.
The content of the invention
It is an object of the invention to provide a kind of antibiotic plastic and preparation method thereof, the high mechanical strength of the antibiotic plastic, and
Bacteria breed can effectively be suppressed and then improve the fresh-keeping effect to food etc..
To achieve these goals, the invention provides a kind of preparation method of antibiotic plastic, it is characterised in that including：
By polyvinyl acetate, polyurethane resin, antibiotic plastic filler, turpentine oil, vinyltrimethoxy silane, phosphoric acid
Front three phenolic ester and the silane coupler that the trade mark is KH570 are kneaded, so that micelle is made；
The micelle is added to progress extrusion molding in extruder the antibiotic plastic is made；
Wherein, the antibiotic plastic filler is by herbaceous plant, chitosan, chitin fiber, diatomite, calcium stearate, sea
Mosanom, hydrotalcite, ferric stearate and silica are made；
The extruder includes feeding section, stage casing and the extruder head being sequentially connected, and the operating temperature of the extruder
For：105-110 DEG C of feeding section, 115-120 DEG C of stage casing, 180-195 DEG C of extruder head.
Pass through above-mentioned technical proposal, the present invention are entered herbaceous plant, chitosan, chitin fiber and diatomite by selecting
After row is anticipated, add the components such as calcium stearate, sodium alginate, hydrotalcite, ferric stearate and silica and carry out heat again
Handle and then further promote the mutual synergy between each raw material；And then improve the anti-of obtained antibiotic plastic filler
Bacterium performance.And by specific process conditions further such that provided by the invention anti-on the premise of specific raw material is selected
Bacterium plastics have excellent anti-microbial property and mechanical strength.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Embodiment
The embodiment of the present invention is described in detail below.It is it should be appreciated that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The end points of disclosed scope and any value are not limited to the accurate scope or value herein, these scopes or
Value should be understood to comprising the value close to these scopes or value.For number range, between the endpoint value of each scope, respectively
It can be combined with each other between the endpoint value of individual scope and single point value, and individually between point value and obtain one or more
New number range, these number ranges should be considered as specific open herein.
A kind of preparation method of antibiotic plastic is provided in the present invention, including：By polyvinyl acetate, polyurethane resin,
Antibiotic plastic filler, turpentine oil, vinyltrimethoxy silane, tricresyl phosphate and the trade mark are KH570 silane coupler
It is kneaded, so that micelle is made；The micelle is added to progress extrusion molding in extruder the antibiotic plastic is made；Its
In, the antibiotic plastic filler is by herbaceous plant, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, neatly
Stone, ferric stearate and silica are made；The extruder includes feeding section, stage casing and the extruder head being sequentially connected, and described
The operating temperature of extruder is：105-110 DEG C of feeding section, 115-120 DEG C of stage casing, 180-195 DEG C of extruder head.
In above-mentioned technical proposal, the condition of the mixing can select in wide scope, but in order to improve mixing
Effect, it is preferable that the mixing at least meets following condition：Temperature is 120-150 DEG C, and/or the time is 2-4h.
In above-mentioned technical proposal, in order to further improve antibiotic plastic filler carrying to the anti-microbial properties of obtained plastics
It is high, it is preferable that the antibiotic plastic filler is made by following methods：
The antibiotic plastic filler is made by following methods：
Mixing is made after herbaceous plant, chitosan, chitin fiber and diatomite are carried out into the first mixing, the first heat treatment
Thing M1；
Calcium stearate, sodium alginate, hydrotalcite, ferric stearate and silica are added in the mixture M 1 and carry out
Dried after two mixing, the second heat treatment, ground sieve series obtains the antibiotic plastic filler；
Wherein, the temperature of second heat treatment is higher than 30-50 DEG C of the temperature of the described first heat treatment.
In above-mentioned technical proposal, the temperature of first heat treatment can select in wide scope, but in order to improve
The effect of heat treatment and then improve promotes the interaction between each raw material, it is preferable that the temperature of first heat treatment is
100-110℃。
In above-mentioned technical proposal, the time of first heat treatment can select in wide scope, but in order to improve
The efficiency of obtained first heat treatment, it is preferable that the time of first heat treatment is 4-6h；
The time of second heat treatment is 1-2h.
In above-mentioned technical proposal, first mixing, the condition of the second mixing can select in wide scope, but be
Raising first mixing, the effect and efficiency of the second mixing, it is preferable that first mixing, the condition of the second mixing are each
From standing alone as：Rotating speed is 3000-5000rpm, time 1-1.5h.
In above-mentioned technical proposal, the herbal species can select in wide scope, but anti-in order to improve
The anti-microbial property of bacterium plastic filler, it is preferable that the herbaceous plant is the tuber of dwarf lilyturf, folium isatidis, peppermint, the fruit of Chinese magnoliavine, wormwood and imperial tongue
One or more in orchid.
In above-mentioned technical proposal, the specific dosage of each raw material can select in wide scope, but in order to improve antibacterial
Anti-microbial property, it is preferable that the herbaceous plant, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, water
The weight ratio of talcum, ferric stearate and silica is 100：3-6：5-10：5-15：10-15：3-5：1-3：1-3：2-4.
In above-mentioned technical proposal, during preparing antibiotic plastic, the specific dosage of each component can be in wide scope
Interior selection, but in order to improve the mutual synergy between each component, it is preferable that the polyvinyl acetate, polyurethane tree
Fat, antibiotic plastic filler, turpentine oil, vinyltrimethoxy silane, tricresyl phosphate and the trade mark are the silane coupled of KH570
The weight ratio of agent is 100：20-30：5-15：5-10：1.1-2.1：0.8-1.6：0.9-1.5.
Present invention also offers antibiotic plastic made from a kind of above-mentioned preparation method.
The present invention will be described in detail by way of examples below.
Preparation example 1
The tuber of dwarf lilyturf, chitosan, chitin fiber and diatomite are stirred 1.5h, in 100 DEG C of heat treatments at 3,000 rpm
Mixture M 1 is made after 6h；
Calcium stearate, sodium alginate, hydrotalcite, ferric stearate and silica are added in the mixture M 1,
Be stirred under 3000rpm 1.5h, be heat-treated at 130 DEG C after 2h dry, ground sieve series obtains the antibiotic plastic filler, be denoted as
W1；
Wherein, the tuber of dwarf lilyturf, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, hydrotalcite, ferric stearate
Weight ratio with silica is 100：3：5：5：10：3：1：1：2.
Preparation example 2
Folium isatidis, chitosan, chitin fiber and diatomite are stirred under 4000rpm to 1.2h, at 105 DEG C of heat
Mixture M 1 is made after managing 5h；
Calcium stearate, sodium alginate, hydrotalcite, ferric stearate and silica are added in the mixture M 1,
1.2h is stirred under 4000rpm, dry, ground sieve series obtains the antibiotic plastic filler after 145 DEG C of heat treatment 1.5h, note
Make W2；
Wherein, the folium isatidis, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, hydrotalcite, hard
The weight of resin acid iron and silica ratio is 100：4：8：10：13：4：2：2：3.
Preparation example 3
By in American aloe, chitosan, chitin fiber and diatomite 1h is stirred under 5000rpm, at 110 DEG C of heat
Mixture M 1 is made after managing 4h；
Calcium stearate, sodium alginate, hydrotalcite, ferric stearate and silica are added in the mixture M 1,
Be stirred under 5000rpm 1h, be heat-treated at 160 DEG C after 1h dry, ground sieve series obtains the antibiotic plastic filler, be denoted as
W3；
Wherein, the American aloe, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, hydrotalcite, hard
The weight of resin acid iron and silica ratio is 100：6：10：15：15：5：3：3：4.
Preparation example 4
Antibiotic plastic filler is made according to the method for preparation example 1, is denoted as W4；The difference is that the second heat treatment is not carried out, directly
By the tuber of dwarf lilyturf, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, hydrotalcite, ferric stearate and silica
Mixture M 1 is made in 8h after 100 DEG C of heat treatment after being mixed together.
Preparation example 5
Antibiotic plastic filler is made according to the method for preparation example 1, is denoted as W5；The difference is that the first heat treatment is not carried out, directly
By the tuber of dwarf lilyturf, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, hydrotalcite, ferric stearate and silica
Mixture M 1 is made in 8h after 130 DEG C of heat treatment after being mixed together.
Preparation example 6
Antibiotic plastic filler is made according to the method for preparation example 1, is denoted as W6；The difference is that the tuber of dwarf lilyturf is not added in raw material.
Preparation example 7
Antibiotic plastic filler is made according to the method for preparation example 1, is denoted as W7；The difference is that chitosan is not added in raw material.
Preparation example 8
Antibiotic plastic filler is made according to the method for preparation example 1, is denoted as W8；The difference is that chitin fibre is not added in raw material
Dimension.
Preparation example 9
Antibiotic plastic filler is made according to the method for preparation example 1, is denoted as W9；The difference is that first diatomite is not added in raw material.
Embodiment 1
By polyvinyl acetate, polyurethane resin, antibiotic plastic filler W1, turpentine oil, vinyltrimethoxy silane, phosphorus
Sour front three phenolic ester and the trade mark are KH570 silane coupler according to 100：20-30：5-15：5-10：1.1-2.1：0.8-1.6：
0.9-1.5 weight ratio is kneaded 2-4h so that micelle is made at 120-150 DEG C；
The micelle is added to progress extrusion molding in extruder the antibiotic plastic is made, be denoted as A1；
The operating temperature of the extruder is：105-110 DEG C of feeding section, 115-120 DEG C of stage casing, extruder head 180-195
℃。
Embodiment 2
By polyvinyl acetate, polyurethane resin, antibiotic plastic filler W2, turpentine oil, vinyltrimethoxy silane, phosphorus
Sour front three phenolic ester and the trade mark are KH570 silane coupler according to 100：20-30：5-15：5-10：1.1-2.1：0.8-1.6：
0.9-1.5 weight ratio is kneaded 2-4h so that micelle is made at 120-150 DEG C；
The micelle is added to progress extrusion molding in extruder the antibiotic plastic is made, be denoted as A2；
The operating temperature of the extruder is：105-110 DEG C of feeding section, 115-120 DEG C of stage casing, extruder head 180-195
℃。
Embodiment 3
By polyvinyl acetate, polyurethane resin, antibiotic plastic filler W3, turpentine oil, vinyltrimethoxy silane, phosphorus
Sour front three phenolic ester and the trade mark are KH570 silane coupler according to 100：20-30：5-15：5-10：1.1-2.1：0.8-1.6：
0.9-1.5 weight ratio is kneaded 2-4h so that micelle is made at 120-150 DEG C；
The micelle is added to progress extrusion molding in extruder the antibiotic plastic is made, be denoted as A3；
The operating temperature of the extruder is：105-110 DEG C of feeding section, 115-120 DEG C of stage casing, extruder head 180-195
℃。
Embodiment 4
Antibiotic plastic is prepared Following the procedure of Example 1, is denoted as A4；The difference is that replaced using antibiotic plastic filler W4
W1。
Embodiment 5
Antibiotic plastic is prepared Following the procedure of Example 1, is denoted as A5；The difference is that replaced using antibiotic plastic filler W5
W1。
Comparative example 1
Antibiotic plastic is prepared Following the procedure of Example 1, is denoted as D1；The difference is that replaced using antibiotic plastic filler W6
W1。
Comparative example 2
Antibiotic plastic is prepared Following the procedure of Example 1, is denoted as D2；The difference is that replaced using antibiotic plastic filler W7
W1。
Comparative example 3
Antibiotic plastic is prepared Following the procedure of Example 1, is denoted as D3；The difference is that replaced using antibiotic plastic filler W8
W1。
Comparative example 4
Antibiotic plastic is prepared Following the procedure of Example 1, is denoted as D4；The difference is that replaced using antibiotic plastic filler W9
W1。
Comparative example 5
Antibiotic plastic is prepared Following the procedure of Example 1, is denoted as D5；The difference is that antibiotic plastic filler W1 is not used.
Detect example 1
According to the antibiotic plastic A1-A5 that national standard GB/T 1539-2007 regulation measure embodiment and comparative example system are worth
And D1-D5 colony counts (n/cfug-1)；Concrete outcome is shown in Table 1.
Table 1
| Total plate count (n/cfug-1) | |
| A1 | 8 |
| A2 | 8 |
| A3 | 7 |
| A4 | 5 |
| A5 | 6 |
| D1 | 28 |
| D2 | 25 |
| D3 | 21 |
| D4 | 23 |
| D5 | 151 |
Learnt according to above-mentioned testing result：Colony counts (the n/cfug of corresponding polybag made from A1-A5-1)
Within 10, that is, illustrate that filler made from technical scheme provided by the invention has excellent anti-microbial property.In addition, A1-A3
Colony counts are less than A4-A5, and the anti-microbial property of plastics can be effectively improved by indicating the technical scheme provided in the present invention.This
Outside, the anti-microbial property of polybag is worst made from D5 fillers made from comparative example 1, shows that antibacterial filler provided by the invention can
The effective anti-microbial property for improving plastics；In addition D1-D4 colony counts are superior to D5 but are inferior to A1-A5, therefore illustrate this
Invent and mutually cooperateed between the tuber of dwarf lilyturf provided, chitosan, chitin fiber, the component such as diatomite and then improve obtained antibacterial
The anti-microbial property of filler.
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited in above-mentioned embodiment
Detail, in the range of the technology design of the present invention, a variety of simple variants can be carried out to technical scheme, this
A little simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (10)
- A kind of 1. preparation method of antibiotic plastic, it is characterised in that including：By polyvinyl acetate, polyurethane resin, antibiotic plastic filler, turpentine oil, vinyltrimethoxy silane, tripotassium phosphate Phenolic ester and the silane coupler that the trade mark is KH570 are kneaded, so that micelle is made；The micelle is added to progress extrusion molding in extruder the antibiotic plastic is made；Wherein, the antibiotic plastic filler is by herbaceous plant, chitosan, chitin fiber, diatomite, calcium stearate, alginic acid Sodium, hydrotalcite, ferric stearate and silica are made；The extruder includes feeding section, stage casing and the extruder head being sequentially connected, and the operating temperature of the extruder is：Add Expect 105-110 DEG C of section, 115-120 DEG C of stage casing, 180-195 DEG C of extruder head.
- 2. preparation method according to claim 1, wherein, the mixing at least meets following condition：Temperature is 120-150 DEG C, and/or the time is 2-4h.
- 3. preparation method according to claim 1, wherein, the antibiotic plastic filler is made by following methods：Mixture is made after herbaceous plant, chitosan, chitin fiber and diatomite are carried out into the first mixing, the first heat treatment M1；Calcium stearate, sodium alginate, hydrotalcite, ferric stearate and silica are added into progress second in the mixture M 1 to mix Close, dried after the second heat treatment, ground sieve series obtains the antibiotic plastic filler；Wherein, the temperature of second heat treatment is higher than 30-50 DEG C of the temperature of the described first heat treatment.
- 4. preparation method according to claim 3, wherein, the temperature of first heat treatment is 100-110 DEG C.
- 5. preparation method according to claim 3, wherein, the time of first heat treatment is 4-6h；The time of second heat treatment is 1-2h.
- 6. preparation method according to claim 3, wherein, first mixing, the condition of the second mixing are each stood alone as： Rotating speed is 3000-5000rpm, time 1-1.5h.
- 7. according to the preparation method described in any one in claim 1-6, wherein, the herbaceous plant be the tuber of dwarf lilyturf, folium isatidis, One or more in peppermint, the fruit of Chinese magnoliavine, wormwood and American aloe.
- 8. preparation method according to claim 3, wherein, the herbaceous plant, chitosan, chitin fiber, diatomite, Calcium stearate, sodium alginate, hydrotalcite, the weight ratio of ferric stearate and silica are 100：3-6：5-10：5-15：10-15：3- 5：1-3：1-3：2-4.
- 9. preparation method according to claim 1, wherein, the polyvinyl acetate, polyurethane resin, antibiotic plastic are filled out The weight ratio for the silane coupler that material, turpentine oil, vinyltrimethoxy silane, tricresyl phosphate and the trade mark are KH570 is 100：20-30：5-15：5-10：1.1-2.1：0.8-1.6：0.9-1.5.
- 10. antibiotic plastic made from the preparation method in a kind of 1-9 as claim described in any one.
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| CN108707330A (en) * | 2018-04-17 | 2018-10-26 | 句容沣润塑料制品有限公司 | A kind of anti-static plastic and preparation method thereof |
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| CN108714072A (en) * | 2018-06-04 | 2018-10-30 | 界首市龙鑫生物科技有限公司 | A kind of anti-biotic material for Medical cold application |
| CN108976762A (en) * | 2018-04-17 | 2018-12-11 | 句容沣润塑料制品有限公司 | A kind of anti-oxidant plastics and preparation method thereof |
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| CN108976762A (en) * | 2018-04-17 | 2018-12-11 | 句容沣润塑料制品有限公司 | A kind of anti-oxidant plastics and preparation method thereof |
| CN108714072A (en) * | 2018-06-04 | 2018-10-30 | 界首市龙鑫生物科技有限公司 | A kind of anti-biotic material for Medical cold application |
| CN109497126A (en) * | 2018-12-04 | 2019-03-22 | 金华观瑞科技有限公司 | Extend the method for aquatic product cold storage freshness preservation |
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