CN107383407A - Composite antibacterial polypropylene crisper and preparation method thereof - Google Patents
Composite antibacterial polypropylene crisper and preparation method thereof Download PDFInfo
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- CN107383407A CN107383407A CN201710474183.4A CN201710474183A CN107383407A CN 107383407 A CN107383407 A CN 107383407A CN 201710474183 A CN201710474183 A CN 201710474183A CN 107383407 A CN107383407 A CN 107383407A
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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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D105/00—Coating compositions based on polysaccharides or on their derivatives, not provided for in groups C09D101/00 or C09D103/00
- C09D105/12—Agar-agar; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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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
- 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
- C08J2405/12—Agar-agar; Derivatives thereof
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention discloses a kind of composite antibacterial polypropylene crisper and preparation method thereof, antimicrobial component is extracted from dandelion, elephants-foot, peppermint and oleander, and composite antibacterial material is prepared for together with zinc salt and other auxiliary agents, moreover, above-mentioned material is dissolved in the agarose with loose structure by the present invention, and is coated on crisper surface.During routine use, agarose water suction, article in crisper is set to keep drying, on the other hand, even if there is bacteria breed, the crisper surface with agarose can be also grown on, and there is restraining and sterilizing bacteria active material in agarose, the bacterium in agarose can be killed.So, the environment for being unfavorable for bacterial growth had both been manufactured, and can realizes the purpose of sterilization, and the environmental protection of manufactured crisper, safety, green non-pollution, and plant material derives from frequently seen plants raw material, and cost is low, and manufacture craft is simple, has higher application value.
Description
Technical field
The present invention relates to antibacterial polypropylene crisper, in particular it relates to a kind of composite antibacterial polypropylene crisper and its system
Preparation Method.
Background technology
Now with the growing of shopping at network, increasing people selects the fresh class product of net purchase, but is transporting
Due to the change of climatic environment product may be caused to go bad in way, particularly some freshs fruit of vegetables are, it is necessary to put into substantial amounts of money
Source carries out anti-bacterial refreshing storage and transport to it, virtually adds cost, reduces profit, it is often more important that wastes very
More extra resource.Similarly, the cosmetics of super quality and precious biological sample, containing biotic factor, it is easy to by microorganism
Infringement, causes irremediable loss.
With the development of science and technology and the improvement of people's living standards, the health perception of people constantly strengthens, to daily
The health of articles for use especially food and cleaning for environment give higher attention.But in everyday environments, carefully
The invasive organisms such as bacterium, mould are ubiquitous, threaten the health of the mankind.The development and application of antibacterial crisper, can be effective
Ground reduces or avoided cross infection and the transmission of disease of bacterium.
On the other hand, people conduct extensive research, at present using more it is common that adding in the material for making crisper
Add chemical antiseptic, be molded jointly with crisper, because such antiseptic toxicity is big, can all be produced in melting extrusion process
Some raw poisonous, irritating gases, and it is added in plastic packing product also easy migration precipitation, or even can go to pack
Food, fruits and vegetables, in medical etc., cause to use unsafe problems, these organic antibacterial agents are led in packaging for foodstuff and medical treatment
Domain does not allow addition usually.
The content of the invention
It is an object of the invention to provide a kind of composite antibacterial polypropylene crisper and preparation method thereof, the pure day of the equipment choosing
Beneficial antibacterial composition is extracted in the right common plant material containing antimicrobial component, composite chemical antimicrobial component, is prepared for antibacterial material
Material, and it is coated on to crisper surface, the environmental protection of manufactured crisper, safety, green non-pollution, and plant material derives from
Frequently seen plants raw material, cost is low, and manufacture craft is simple, has higher application value.
To achieve these goals, the invention provides a kind of preparation method of composite antibacterial polypropylene crisper, including
Following steps:(1) by dandelion, elephants-foot, peppermint and oleander, crush, soaked in ethanol solution, filter, obtain filtered fluid
M1;(2) agarose is mixed with sodium carbonate and water, adds glacial acetic acid and reacted, obtain M2;(3) by M1, M2, zinc salt, reduction
Agent, methylisothiazolinone and surfactant mixing, obtain M3;(4) M3 is coated on to the inwall of polypropylene crisper, dried
It is dry.
The present invention also provides a kind of composite antibacterial polypropylene crisper, is prepared according to previously described preparation method.
Pass through above-mentioned technical proposal, the present invention are extracted antimicrobial component from dandelion, elephants-foot, peppermint and oleander,
And composite antibacterial material is prepared for together with zinc salt and other auxiliary agents, moreover, above-mentioned material is dissolved in more by the present invention
In the agarose of pore structure, and it is coated on crisper surface.During routine use, agarose water suction, make thing in crisper
Product keep drying, on the other hand, even if there is bacteria breed, can also be grown on the crisper surface with agarose, and agarose
In there is restraining and sterilizing bacteria active material, can by agarose bacterium kill.So, the ring for being unfavorable for bacterial growth had both been manufactured
Border, and can realize the purpose of sterilization, and the environmental protection of manufactured crisper, safety, green non-pollution, and plant material source
In frequently seen plants raw material, cost is low, and manufacture craft is simple, has higher application value.
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.
To achieve these goals, the invention provides a kind of preparation method of composite antibacterial polypropylene crisper, including
Following steps:(1) by dandelion, elephants-foot, peppermint and oleander, crush, soaked in ethanol solution, filter, obtain filtered fluid
M1;(2) agarose is mixed with sodium carbonate and water, adds glacial acetic acid and reacted, obtain M2;(3) by M1, M2, zinc salt, reduction
Agent, methylisothiazolinone and surfactant mixing, obtain M3;(4) M3 is coated on to the inwall of polypropylene crisper, dried
It is dry.
In the above-mentioned technical solutions, dandelion, elephants-foot, peppermint and oleander can be fresh finished product or do
Dry dandelion, elephants-foot, peppermint and oleander, in order to be preserved beneficial to the raw material in daily industrial production, it is preferable that Pu Gong
English, elephants-foot, peppermint and oleander are dry dandelion, elephants-foot, peppermint and oleander, and moisture content is excellent no more than 5%
Selection of land, elephants-foot, peppermint and oleander refer to elephants-foot leaf, dried peppermint leaf and sweetscented oleander leaf.
In the above-mentioned technical solutions, agarose is linear polymer, basic structure be 1, the 3 β-D- galactolipins linked and
The long-chain that 3, the 6- inner ether-L- galactolipins that Isosorbide-5-Nitrae links alternately connect, is common chemistry, biologic applications raw material.In this hair
In bright, agarose may be selected from food-grade agarose, can be according to the purposes of crisper also selected from technical grade agarose, flexibly choosing
Select.
In the above-mentioned technical solutions, zinc salt can select in relative broad range, in order to prepare compound the killing of safe green environmental protection
Bacterium material, it is preferable that zinc salt is one or both of zinc citrate, glucose saccharic acid zinc.
In the above-mentioned technical solutions, reducing agent can select in relative broad range, in order to prepare the compound of safe green environmental protection
Sterilization material, it is preferable that reducing agent is the one or more in sodium hypophosphite, ascorbic acid, glucose and citric acid.
In the above-mentioned technical solutions, surfactant can select in relative broad range, in order to prepare safe green environmental protection
Composite bactericidal material, it is preferable that surfactant is double octyl alkyl dimethyl ammonium chlorides, didecyl Dimethy ammonium chloride, ten
One or more in dialkyl group dimethylbenzylammonium chloride, HM98 polysiloxane quaternary ammoniums.
Pass through above-mentioned technical proposal, the present invention are extracted antimicrobial component from dandelion, elephants-foot, peppermint and oleander,
And composite antibacterial material is prepared for together with zinc salt and other auxiliary agents, moreover, above-mentioned material is dissolved in more by the present invention
In the agarose of pore structure, and it is coated on crisper surface.During routine use, agarose water suction, make thing in crisper
Product keep drying, on the other hand, even if there is bacteria breed, can also be grown on the crisper surface with agarose, and agarose
In there is restraining and sterilizing bacteria active material, can by agarose bacterium kill.So, the ring for being unfavorable for bacterial growth had both been manufactured
Border, and can realize the purpose of sterilization, and the environmental protection of manufactured crisper, safety, green non-pollution, and plant material source
In frequently seen plants raw material, cost is low, and manufacture craft is simple, has higher application value.
In the above-mentioned technical solutions, the amount of the addition of each raw material can select in relative broad range, in order to prepare safe green
Environmental protection and the preferable composite bactericidal material of bactericidal effect, it is preferable that in parts by weight, in step (1), dandelion 12-16 parts, ground
Courage grass 5-7 parts, peppermint 5-8 parts, oleander 4-6 parts, ethanol solution 40-60 parts.
In the above-mentioned technical solutions, the volume ratio of alcoholic solution can select in relative broad range, in order to prepare safe green ring
Guarantor and the preferable composite bactericidal material of bactericidal effect, it is preferable that preferably, the concentration of ethanol is 60-75 bodies in ethanol solution
Product %, preferred solvent is water.
In the above-mentioned technical solutions, the amount of the addition of each raw material can select in relative broad range, in order to prepare safe green
Environmental protection and the preferable composite bactericidal material of bactericidal effect, it is preferable that in parts by weight, in step (2), agarose 20-30 parts, carbon
Sour sodium 3-5 parts, glacial acetic acid 5-7 parts, water 40-50 parts.
In the above-mentioned technical solutions, the amount of the addition of each raw material can select in relative broad range, in order to prepare safe green
Environmental protection and the preferable composite bactericidal material of bactericidal effect, it is preferable that in parts by weight, in step (3), M1 24-36 parts, M2 8-
15 parts, zinc salt 0.01-0.03 parts, reducing agent 0.1-0.2 parts, methylisothiazolinone 1-2 parts, surfactant 2-3 parts.
In the above-mentioned technical solutions, the amount of M3 coating can select in relative broad range, in order to prepare safe green environmental protection
And the preferable composite bactericidal material of bactericidal effect, it is preferable that in step (4), M3 coated weight is 12-18g/m2。
In the above-mentioned technical solutions, M3 application temperature can select in relative broad range, in order that M3 coatings are uniform, so as to
Prepare safe green environmental protection and the preferable composite bactericidal material of bactericidal effect, it is preferable that in step (4), application temperature 100-
120℃。
In the above-mentioned technical solutions, drying temperature can select in relative broad range, in order to prepare safe green environmental protection and kill
The preferable composite bactericidal material of bacterium effect, it is preferable that drying temperature is 80-90 DEG C.
In the above-mentioned technical solutions, the average grain diameter of dandelion after crushing, elephants-foot, peppermint and oleander can be in wider model
Interior selection is enclosed, for the extraction beneficial to antimicrobial component, so as to prepare safe green environmental protection and the preferable composite bactericidal of bactericidal effect
Material, it is preferable that in step (1), dandelion after crushing, elephants-foot, the average grain diameter of peppermint and oleander are less than 0.5mm.
In the above-mentioned technical solutions, in step (1), soaking conditionses can select in relative broad range, in order to beneficial to antibacterial into
The extraction divided, so as to prepare safe green environmental protection and the preferable composite bactericidal material of bactericidal effect, it is preferable that in step (1), leaching
It is 45-55 DEG C to steep temperature.
In the above-mentioned technical solutions, in step (1), soak time can select in relative broad range, in order to beneficial to antibacterial into
The extraction divided, so as to prepare safe green environmental protection and the preferable composite bactericidal material of bactericidal effect, and operating efficiency is improved, it is excellent
Selection of land, soak time 12-36h.
In the above-mentioned technical solutions, in step (2), the reaction time can select in relative broad range, porous in order to prepare
Sepharose material, so as to the absorption beneficial to antimicrobial component and disperse, further prepare safe green environmental protection and bactericidal effect is preferable
Composite bactericidal material, it is preferable that in step (2), reaction time 15-30min.
In the above-mentioned technical solutions, in step (3), mixing condition can select in relative broad range, in order to beneficial to antibacterial into
Point absorption and scattered, further prepare safe green environmental protection and the preferable composite bactericidal material of bactericidal effect, it is preferable that step
(3) in, mixing temperature is 60-80 DEG C.
In the above-mentioned technical solutions, for the absorption beneficial to antimicrobial component and scattered, safe green environmental protection is further prepared
And the preferable composite bactericidal material of bactericidal effect, while operating efficiency is improved, it is highly preferred that in step (3), incorporation time is
30-45min。
The present invention also provides a kind of composite antibacterial polypropylene crisper, is prepared according to previously described preparation method.
During routine use, agarose water suction, article in crisper is set to keep drying, on the other hand, even if there is bacteria breed,
The crisper surface with agarose can be grown on, and there is restraining and sterilizing bacteria active material in agarose, can be by agarose
Bacterium kills.So, the environment for being unfavorable for bacterial growth had both been manufactured, and can realizes the purpose of sterilization, and manufactured
Crisper environmental protection, safety, green non-pollution, and plant material derives from frequently seen plants raw material, cost is low, and manufacture craft is simple,
With higher application value.
The present invention will be described in detail by way of examples below.Dandelion, elephants-foot, peppermint and oleander are purchased from four
Chuan Xutai plant materials Co., Ltd, other are company's conventional commercial products.
Embodiment 1
Composite antibacterial polypropylene crisper is prepared to comprise the following steps:
(1) in parts by weight, by 14 parts of dandelion, 6 parts of elephants-foot, 6.5 parts of peppermint, 5 parts of oleander, it is crushed to average grain
Footpath is less than 0.5mm, is to soak 24h in 50 DEG C in 68% ethanol water in 50 parts of volume ratios, filtering, obtains filtered fluid M1;
(2) in parts by weight, by 25 parts of agarose, 4 parts of sodium carbonate, 45 parts of mixing of water, 6 parts of reactions of glacial acetic acid are added
18min, obtain M2;
(3) in parts by weight, by 30 parts of M1,12 parts of M2,0.02 part of zinc citrate, 0.15 part of glucose, the different thiophene of methyl
1.5 parts of oxazoline ketone, 2.5 parts of dimethyl benzyl ammonium chloride mix 38min in 70 DEG C, obtain M3;
(4) M3 is coated on to the inwall of polypropylene crisper in 110 DEG C, M3 coated weight is 15g/m2, 85 DEG C of drying.、
Embodiment 2
Composite antibacterial polypropylene crisper is prepared to comprise the following steps:
(1) in parts by weight, by 16 parts of dandelion, 7 parts of elephants-foot, 8 parts of peppermint, 6 parts of oleander, it is crushed to average grain diameter
Less than 0.5mm, it is to soak 36h in 55 DEG C in 75% ethanol ethanol water in 60 parts of volume ratios, filtering, obtains filtered fluid M1;
(2) in parts by weight, by 30 parts of agarose, 5 parts of sodium carbonate, 50 parts of mixing of water, 7 parts of reactions of glacial acetic acid are added
30min, obtain M2;
(3) in parts by weight, by 36 parts of M1,15 parts of M2,0.03 part of zinc citrate, 0.2 part of glucose, methyl-isothiazol
2 parts of quinoline ketone, 3 parts of dimethyl benzyl ammonium chloride mix 45min in 80 DEG C, obtain M3;
(4) M3 is coated on to the inwall of polypropylene crisper in 120 DEG C, M3 coated weight is 18g/m2, 90 DEG C of drying.
Embodiment 3
Composite antibacterial polypropylene crisper is prepared to comprise the following steps:
(1) in parts by weight, by 12 parts of dandelion, 5 parts of elephants-foot, 5 parts of peppermint, 4 parts of oleander, it is crushed to average grain diameter
Less than 0.5mm, it is to soak 12h in 45 DEG C in 60% ethanol ethanol water in 40 parts of volume ratios, filtering, obtains filtered fluid M1;
(2) in parts by weight, by 20 parts of agarose, 3 parts of sodium carbonate, 40 parts of mixing of water, 5 parts of reactions of glacial acetic acid are added
15min, obtain M2;
(3) in parts by weight, by 24 parts of M1,8 parts of M2,0.01 part of zinc citrate, 0.1 part of glucose, methyl-isothiazol
1 part of quinoline ketone, 2 parts of dimethyl benzyl ammonium chloride mix 30min in 60 DEG C, obtain M3;
(4) M3 is coated on to the inwall of polypropylene crisper in 100 DEG C, M3 coated weight is 12g/m2, 80 DEG C of drying.
Comparative example 1
Method according to embodiment 1 prepares antibacterial polypropylene crisper, unlike, step does not add M1 in (3).
Comparative example 2
Method according to embodiment 1 prepares antibacterial polypropylene crisper, unlike, step does not add M2 in (3).
Comparative example 3
Method according to embodiment 1 prepares antibacterial polypropylene crisper, unlike, step does not add six hydrations in (3)
Ironic citrate.
Comparative example 4
Method according to embodiment 1 prepares antibacterial polypropylene crisper, unlike, carbonic acid is replaced with water in step (2)
Sodium and glacial acetic acid.
Detect example
The crisper prepared from above-described embodiment and comparative example take specification be 10cm × 10cm × 5cm sample carry out with
Lower detection:Packaging for foodstuff products formed sanitary standard detects, and corresponding standard is GB9687-1998;Bacteriostasis rate detects, corresponding standard
GB/T2591-2003;Mould proof grade detection, corresponding standard A STMG21-96.Testing result is as shown in table 1.
Table 1
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)
1. a kind of preparation method of composite antibacterial polypropylene crisper, it is characterised in that comprise the following steps:
(1) by dandelion, elephants-foot, peppermint and oleander, crush, soaked in ethanol solution, filter, obtain filtered fluid M1;
(2) agarose is mixed with sodium carbonate and water, adds glacial acetic acid and reacted, obtain M2;
(3) M1, M2, zinc salt, reducing agent, methylisothiazolinone and surfactant are mixed, obtains M3;
(4) M3 is coated on to the inwall of polypropylene crisper, drying.
2. preparation method according to claim 1, wherein, in parts by weight, in step (1), dandelion 12-16 parts, ground
Courage grass 5-7 parts, peppermint 5-8 parts, oleander 4-6 parts, ethanol solution 40-60 parts;Preferably, the concentration of ethanol is 60- in ethanol
75 volume %.
3. preparation method according to claim 1, wherein, in parts by weight, in step (2), agarose 20-30 parts, carbon
Sour sodium 3-5 parts, glacial acetic acid 5-7 parts, water 40-50 parts;
And/or in parts by weight, in step (3), M1 24-36 parts, M2 8-15 parts, zinc salt 0.01-0.03 parts, reducing agent
0.1-0.2 parts, methylisothiazolinone 1-2 parts, surfactant 2-3 parts.
4. preparation method according to claim 1, wherein, zinc salt is one kind or two in zinc citrate, glucose saccharic acid zinc
Kind;
And/or reducing agent is the one or more in sodium hypophosphite, ascorbic acid, glucose and citric acid;
And/or surfactant is double octyl alkyl dimethyl ammonium chlorides, didecyl Dimethy ammonium chloride, dimethyl
One or more in benzyl ammonium chloride, HM98 polysiloxane quaternary ammoniums.
5. preparation method according to claim 1, wherein, in step (4), M3 coated weight is 12-18g/m2。
6. preparation method according to claim 1, wherein, in step (4), application temperature is 100-120 DEG C;And/or dry
Dry temperature is 80-90 DEG C.
7. preparation method according to claim 1, wherein, in step (1), dandelion, elephants-foot, peppermint and folder after crushing
The average grain diameter of bamboo peach is less than 0.5mm.
8. preparation method according to claim 1, wherein, in step (1), soaking temperature is 45-55 DEG C;And/or immersion
Time is 12-36h.
9. preparation method according to claim 1, wherein, in step (2), reaction time 15-30min;And/or step
Suddenly in (3), mixing temperature is 60-80 DEG C;Incorporation time is 30-45min.
10. a kind of composite antibacterial polypropylene crisper, it is characterised in that according to the preparation any one of claim 1-9
Method is prepared.
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Cited By (1)
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