CN110240743A - A kind of intercept type antirust film and preparation method - Google Patents
A kind of intercept type antirust film and preparation method Download PDFInfo
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- CN110240743A CN110240743A CN201910499771.2A CN201910499771A CN110240743A CN 110240743 A CN110240743 A CN 110240743A CN 201910499771 A CN201910499771 A CN 201910499771A CN 110240743 A CN110240743 A CN 110240743A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
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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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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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
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—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
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
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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
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
- C08J2491/06—Waxes
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/085—Copper
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0893—Zinc
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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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/16—Solid spheres
- C08K7/18—Solid spheres inorganic
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- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Mechanical Engineering (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a kind of intercept type antirust film and preparation methods, comprising: the antirust film is by blown film forms again after low density polyethylene (LDPE), Nano metal powder, nano montmorillonite, corrosion inhibiter mixing granulation；Preparation method are as follows: by low density polyethylene (LDPE), Nano metal powder, nano montmorillonite be by mass percentage (75~94%): (2.5~10%): (1~8%) carries out double screw extruder extruding pelletization, as the first masterbatch；By mass percentage be (80~95%) by low density polyethylene (LDPE), vapour phase inhibitor: (5~20%) carry out double screw extruder extruding pelletization, it is then that the first masterbatch, the second masterbatch, low density polyethylene (LDPE) is obtained by Blown-film line blown film by mass percentage (5:5:90) as the second masterbatch.Blocking property of film produced by the present invention is good, heat-resisting good waterproof performance, while having efficient anti-corrosion effect.
Description
Technical field
The present invention relates to antirust film packaging field more particularly to a kind of intercept type antirust film and preparation methods.
Background technique
With the development of science and technology, the utilization rate of metal is higher and higher in industrial production, but metal is difficult in use
Exempt from there can be the problems such as getting rusty, various heavy losses can be caused directly or indirectly, seriously affected industrial orderly progress,
The security of the lives and property of the people may also be threatened.It is all kinds of mechanical and building facility due to the generation for the problems such as getting rusty
Service life has a greatly reduced quality, it is not necessary to the second investment increase；Meanwhile many peaces are also produced in the use process of equipment
Full hidden danger.Therefore, antirust problem is to be related to people's production and living, the significant problem of socio-economic development.Number of patent application
CN200810047146.6 discloses a kind of multifunctional environment protection gas-phase rust-proofing film and preparation method thereof.The gas-phase antirusting film is pressed
Weight proportion is formed by 90~95% matrix plastic with 5~10% additive mixing coextrusion blow, and the additive is by weight
Amount proportion is made of 65~80% vapour phase inhibitor, 2~5% dispersed lubricant and 15~30% carrier plastics, described
Vapour phase inhibitor uses the combination of three kinds of sodium tetraborate, ammonium molybdate and lauric acid cyclohexylamine substances.Preparation method is will first to add
Add agent raw material vapour phase inhibitor, dispersed lubricant and carrier plastics mixing granulation, then by additive granules obtained and matrix
Plastic raw materials are uniformly mixed, and the temperature of 130~180 DEG C of setting carries out coextrusion film blowing in blow moulding machine, that is, can be made into multi-functional ring
Protect gas-phase antirusting film.Although its effect for playing corrosion protection to a certain extent, only by vapour phase inhibitor
Effect, rust-proof effect is bad, does not also accomplish the effect of antibacterial immunity to prevent trouble before it happens, the object of other antimicrobial antirusts of film
Rationality matter does not improve.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of physical strength and rust-preventing characteristic for improving film based packaging material
Can and the strong intercept type antirust film and preparation method of protectiveness.
The problems such as in order to overcome physical strength and poor rustless property in the prior art, the present invention relates to a kind of intercept types
Antirust film, comprising: the antirust film is added by 5% the first masterbatch and 5% the second masterbatch and 90% by weight ratio
Agent；First masterbatch weight ratio by weight by 75~94% low density polyethylene (LDPE), 2.5~10% Nano metal powder, 1~
8% nano montmorillonite and 2.5~10% vapour phase inhibitor composition；The second master batch weight weight ratio is by 80~95%
Low density polyethylene (LDPE), 5~20% vapour phase inhibitor composition；The additive is low density polyethylene (LDPE).
The invention has the advantages that improving the barrier property of film, and due to receiving by the way that Nano metal powder is added
Rice metal powder is copper powder, and the other materials that can make is uniformly distributed in mixing, and the heat resistance of film is improved, again
By the way that vapour phase inhibitor is arranged, fine and close protective film layer can be formed to allow film to play the role of antirust, taken off by increasing to cover
Soil enhances the antibiotic property of film.
And intercept type antirust film through the invention will not discharge poisonous and harmful during giving mental package
Gas does not produce peculiar smell, is free from environmental pollution, fully meets the requirement of national environmental standard, it can be ensured that staff's health.And
In use, it is simple and safe that the modes such as antirust oil are not only applied on metal than routine, pollution-free and irritation taste, and
Germ is obstructed than general rust-preventing film and antirust function is more preferable, and intensity is also high, good seal performance, can effectively obstruct the external world not
Only bacterium can also prevent moisture-proof anticorrosive etc., and functional powerful, protective value is comprehensive all to be greatly promoted.
Further, first masterbatch, in the second masterbatch further include auxiliary additive；The auxiliary additive includes work
Industry white oil, coupling agent, polyethylene wax.By setting technical white oil and coupling agent, the modeling of film in process of production can be increased
The property changed, so that its plasticizing effect is more preferable.
Further, the Nano metal powder includes copper nanoparticle, nano zinc powder, the copper nanoparticle, nano zinc powder
Mixed proportion ratio is 1:1；The nano-metallic copper powder shape be sheet, a length of 5~50 nanometers of piece；Nano metal zinc powder shape
For sheet, a length of 5~50 nanometers of piece.Montmorillonite is pelletiod, 5~25 nanometers of sphere diameter.By being arranged to the nano powder of small particle,
The head size for keeping nano-metallic copper powder, avoids nano-metallic copper powder because causing finally formed film appearance not beautiful greatly very much
It sees.
Further, the low density polyethylene (LDPE) is film-grade.The eternal chemical property of the low density polyethylene (LDPE) of film-grade is steady
Calmly, the advantages that Antirust corrosion-resistant, guarantee the stabilization of film performance produced.
Further, the technical white oil is No. 5 white oils；The coupling agent is KH550 coupling agent；The polyethylene wax is
0360 polyethylene wax micro mist；The Nano metal powder does modification by coupling agent.It is enhanced and is received by modification
Original physical property of rice metal powder, increases its anticorrosion, anti abrasive original speciality, also enhances its reliability, industry
Increase its service life.
Further, the preparation method of above-mentioned intercept type antirust film, comprising the following steps:
S1. the nano montmorillonite in the first masterbatch, Nano metal powder, low density polyethylene (LDPE) are added in high-speed mixer, are mixed
It closes 3-5 minutes, technical white oil and coupling agent is added during mixing；
S2. by the second masterbatch vapour phase inhibitor and low density polyethylene (LDPE) be added in high-speed mixer, mix 3-5 minutes,
Polyethylene wax is added during mixing；
S3. the first masterbatch for having mixed completion in step S1 and step S2 and the second masterbatch are taken out, is added separately to twin-screw
Extruding pelletization, each section of set temperature of double screw extruder are carried out in extruder are as follows: one section: 173 DEG C, two sections: 171 DEG C, three sections:
167 DEG C, four sections: 172 DEG C, five sections: 179 DEG C, six sections: 185 DEG C, seven sections: 180 DEG C, eight sections: 176 DEG C, nine sections: 175 DEG C, ten sections:
170 DEG C, head: 175 DEG C；Gained pellet is dried at not higher than 60 DEG C；
S4. by resulting the first masterbatch of plastic grain of step S3 and the second masterbatch, with low density polyethylene (LDPE) by setting mass ratio (5:
It 5:90) is added in low speed mixer, mixes 4-5 minutes；
S5. the plastic grain after the completion of step S4 being mixed, which is added in upper blowing method inflation film manufacturing machine, is blow molded into film, temperature setting are as follows:
One section: 120 DEG C, two sections: 135 DEG C, three sections: 135 DEG C, die head temperature: 140 DEG C, draw ratio 2.8-4.2, blow-up ratio 2.8-
4.2；Control film thickness is 0.10~0.15mm ± 0.1mm.
Specific embodiment
Combined with specific embodiments below, the contents of the present invention are described in further detail:
The problem to be solved in the present invention be to provide a kind of physical strength for improving film based packaging material and rustless property and
The strong intercept type antirust film of protectiveness and preparation method.
The problems such as in order to overcome physical strength and poor rustless property in the prior art, the present invention relates to a kind of intercept types
Antirust film, comprising: the antirust film is added by 5% the first masterbatch and 5% the second masterbatch and 90% by weight ratio
Agent；First masterbatch weight ratio by weight by 75~94% low density polyethylene (LDPE), 2.5~10% Nano metal powder, 1~
8% nano montmorillonite and 2.5~10% vapour phase inhibitor composition；The second master batch weight weight ratio is by 80~95%
Low density polyethylene (LDPE), 5~20% vapour phase inhibitor composition；The additive is low density polyethylene (LDPE).
The invention has the advantages that improving the barrier property of film, and due to receiving by the way that Nano metal powder is added
Rice metal powder is copper powder, and the other materials that can make is uniformly distributed in mixing, and the heat resistance of film is improved, again
By the way that vapour phase inhibitor is arranged, fine and close protective film layer can be formed to allow film to play the role of antirust, taken off by increasing to cover
Soil enhances the antibiotic property of film.
And intercept type antirust film through the invention will not discharge poisonous and harmful during giving mental package
Gas does not produce peculiar smell, is free from environmental pollution, fully meets the requirement of national environmental standard, it can be ensured that staff's health.And
In use, it is simple and safe that the modes such as antirust oil are not only applied on metal than routine, pollution-free and irritation taste, and
Germ is obstructed than general rust-preventing film and antirust function is more preferable, and intensity is also high, good seal performance, can effectively obstruct the external world not
Only bacterium can also prevent moisture-proof anticorrosive etc., and functional powerful, protective value is comprehensive all to be greatly promoted.
Further, first masterbatch, in the second masterbatch further include auxiliary additive；The auxiliary additive includes work
Industry white oil, coupling agent, polyethylene wax.By setting technical white oil and coupling agent, the modeling of film in process of production can be increased
The property changed, so that its plasticizing effect is more preferable.
Further, the Nano metal powder includes copper nanoparticle, nano zinc powder, the copper nanoparticle, nano zinc powder
Mixed proportion ratio is 1:1；The nano-metallic copper powder shape be sheet, a length of 5~50 nanometers of piece；Nano metal zinc powder shape
For sheet, a length of 5~50 nanometers of piece.Montmorillonite is pelletiod, 5~25 nanometers of sphere diameter.By being arranged to the nano powder of small particle,
The head size for keeping nano-metallic copper powder, avoids nano-metallic copper powder because causing finally formed film appearance not beautiful greatly very much
It sees.
Further, the low density polyethylene (LDPE) is film-grade.The eternal chemical property of the low density polyethylene (LDPE) of film-grade is steady
Calmly, the advantages that Antirust corrosion-resistant, guarantee the stabilization of film performance produced.
Further, the technical white oil is No. 5 white oils；The coupling agent is KH550 coupling agent；The polyethylene wax is
0360 polyethylene wax micro mist；The Nano metal powder does modification by coupling agent.It is enhanced and is received by modification
Original physical property of rice metal powder, increases its anticorrosion, anti abrasive original speciality, also enhances its reliability, industry
Increase its service life.
Further, the preparation method of above-mentioned intercept type antirust film, comprising the following steps:
S1. the nano montmorillonite in the first masterbatch, Nano metal powder, low density polyethylene (LDPE) are added in high-speed mixer, are mixed
It closes 3-5 minutes, technical white oil and coupling agent is added during mixing；
S2. by the second masterbatch vapour phase inhibitor and low density polyethylene (LDPE) be added in high-speed mixer, mix 3-5 minutes,
Polyethylene wax is added during mixing；
S3. the first masterbatch for having mixed completion in step S1 and step S2 and the second masterbatch are taken out, is added separately to twin-screw
Extruding pelletization, each section of set temperature of double screw extruder are carried out in extruder are as follows: one section: 173 DEG C, two sections: 171 DEG C, three sections:
167 DEG C, four sections: 172 DEG C, five sections: 179 DEG C, six sections: 185 DEG C, seven sections: 180 DEG C, eight sections: 176 DEG C, nine sections: 175 DEG C, ten sections:
170 DEG C, head: 175 DEG C；Gained pellet is dried at not higher than 60 DEG C；
S4. by resulting the first masterbatch of plastic grain of step S3 and the second masterbatch, with low density polyethylene (LDPE) by setting mass ratio (5:
It 5:90) is added in low speed mixer, mixes 4-5 minutes；
S5. the plastic grain after the completion of step S4 being mixed, which is added in upper blowing method inflation film manufacturing machine, is blow molded into film, temperature setting are as follows:
One section: 120 DEG C, two sections: 135 DEG C, three sections: 135 DEG C, die head temperature: 140 DEG C, draw ratio 2.8-4.2, blow-up ratio 2.8-
4.2；Control film thickness is 0.10~0.15mm ± 0.1mm.
In actual operation, each ingredient of formula can be adjusted in the use of formula according to actual needs, below with reference to
Several examples come preparation method and process illustratively of the invention.
Embodiment 1: the first masterbatch 50g, the second masterbatch 50g, auxiliary additive 900g, low density polyethylene (LDPE) in the first masterbatch
37.5g, Nano metal powder 5g, nano montmorillonite 2.5g, vapour phase inhibitor 5g, by nano montmorillonite, the nanometer in the first masterbatch
Metal powder, low density polyethylene (LDPE) are added in high-speed mixer, mix 3-5 minutes, technical white oil is added during mixing
And coupling agent；Low density polyethylene (LDPE) 40g, vapour phase inhibitor 10g in second masterbatch, by the second masterbatch vapour phase inhibitor and
Low density polyethylene (LDPE) is added in high-speed mixer, mixes 3-5 minutes, polyethylene wax is added during mixing；It has mixed
The first masterbatch and the second masterbatch completed take out, and are added separately to carry out extruding pelletization, twin-screw extrusion in double screw extruder
Each section of set temperature of machine are as follows: one section: 173 DEG C, two sections: 171 DEG C, three sections: 167 DEG C, four sections: 172 DEG C, five sections: 179 DEG C, six sections:
185 DEG C, seven sections: 180 DEG C, eight sections: 176 DEG C, nine sections: 175 DEG C, ten sections: 170 DEG C, head: 175 DEG C；Gained pellet is being not higher than
It is dried at 60 DEG C；Resulting the first masterbatch of plastic grain and the second masterbatch, with low density polyethylene (LDPE) by setting mass ratio (5:5:
90) it is added in low speed mixer, mixes 4-5 minutes, the plastic grain after the completion of mixing, which is added in upper blowing method inflation film manufacturing machine, to be blown
It is moulded into film, temperature setting are as follows: one section: 120 DEG C, two sections: 135 DEG C, three sections: 135 DEG C, die head temperature: 140 DEG C, draw ratio is
2.8-4.2, blow-up ratio 2.8-4.2；Control film thickness is 0.10~0.15mm ± 0.1mm, is batched using cold cut
Obtain intercept type antirust film of the invention.
Embodiment 2, the first masterbatch 50g, the second masterbatch 50g, auxiliary additive 900g, low density polyethylene (LDPE) in the first masterbatch
47g, Nano metal powder 1.25g, nano montmorillonite 0.5g, vapour phase inhibitor 1.25g, by the first masterbatch nano montmorillonite,
Nano metal powder, low density polyethylene (LDPE) are added in high-speed mixer, are mixed 3-5 minutes, and industry is added during mixing
White oil and coupling agent；Low density polyethylene (LDPE) 47.5g, vapour phase inhibitor 2.5g in second masterbatch, by the gas phase in the second masterbatch
Corrosion inhibiter and low density polyethylene (LDPE) are added in high-speed mixer, mix 3-5 minutes, polyethylene is added during mixing
Wax；The first masterbatch and the second masterbatch for having mixed completion take out, and are added separately to carry out extruding pelletization in double screw extruder, double
Each section of set temperature of screw extruder are as follows: one section: 173 DEG C, two sections: 171 DEG C, three sections: 167 DEG C, four sections: 172 DEG C, five sections: 179
DEG C, six sections: 185 DEG C, seven sections: 180 DEG C, eight sections: 176 DEG C, nine sections: 175 DEG C, ten sections: 170 DEG C, head: 175 DEG C；Gained pellet
It is dried at not higher than 60 DEG C；Resulting the first masterbatch of plastic grain and the second masterbatch, with low density polyethylene (LDPE) by setting quality
It is added in low speed mixer, mixes 4-5 minutes, the plastic grain after the completion of mixing is added to upper blowing method blown film than (5:5:90)
Film, temperature setting are blow molded into machine are as follows: one section: 120 DEG C, two sections: 135 DEG C, three sections: 135 DEG C, die head temperature: 140 DEG C, lead
It stretches than for 2.8-4.2, blow-up ratio 2.8-4.2；Control film thickness is 0.10~0.15mm ± 0.1mm, is rolled up using cold cut
It takes, can be obtained intercept type antirust film of the invention.
It is following (GB/T10125-2012) for neutral salt spray test result in actual tests:
(1) 72 hours H62 copper has very mild discolorations 45# steel is unchanged to be rated 10 grades
(2) 168 hours H62 copper has mild discolorations 45# steel is unchanged to be rated 10 grades
It is following (GB/T2423.3-2016) for damp heat test result:
(1) 9 periods (day) H62 copper mild discolorations 45# steel is unchanged is rated 10 grades
(2) it is 0.06% to be rated 9 grades that 14 cycle H, 62 bronze medal moderate discoloration average corrosion, which is 0.09% 45# steel average corrosion,.
In experiment, intensity is intercepted when metal powder copper, montmorillonite additive amount height increase, reduces permeable breathable；Work as corrosion inhibiter
Additive amount height enhances rust-proof effect, but permeable breathable can be made poor.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (6)
1. a kind of intercept type antirust film, which is characterized in that the antirust film by weight ratio by 5% the first masterbatch and
5% the second masterbatch and 90% additive；First masterbatch weight ratio by weight by 75~94% low density polyethylene (LDPE),
2.5~10% Nano metal powder, 1~8% nano montmorillonite and 2.5~10% vapour phase inhibitor composition；Described second
Master batch weight weight ratio is made of 80~95% low density polyethylene (LDPE), 5~20% vapour phase inhibitor；The additive is low
Density polyethylene.
2. intercept type antirust film according to claim 1, it is characterised in that: in first masterbatch, the second masterbatch also
Including auxiliary additive；The auxiliary additive includes technical white oil, coupling agent, polyethylene wax.
3. intercept type antirust film according to claim 1, it is characterised in that: the Nano metal powder includes Nanometer Copper
Powder, nano zinc powder, the copper nanoparticle, nano zinc powder mixed proportion ratio be 1:1；The nano-metallic copper powder shape is piece
Shape, a length of 5~50 nanometers of piece；Nano metal zinc powder shape is sheet, and a length of 5~50 nanometers of piece, montmorillonite is pelletiod, sphere diameter
5~25 nanometers.
4. intercept type antirust film according to claim 1 and preparation method, it is characterised in that: the low density polyethylene (LDPE)
For film-grade.
5. intercept type antirust film according to claim 2, it is characterised in that: the technical white oil is No. 5 white oils；It is described
Coupling agent is KH550 coupling agent；The polyethylene wax is 0360 polyethylene wax micro mist；The Nano metal powder is done by coupling agent
Modification.
6. a kind of preparation method of intercept type antirust film described in claim 1, characterized by the following steps:
S1. the nano montmorillonite in the first masterbatch, Nano metal powder, low density polyethylene (LDPE) are added in high-speed mixer, are mixed
It closes 3-5 minutes, technical white oil and coupling agent is added during mixing；
S2. by the second masterbatch vapour phase inhibitor and low density polyethylene (LDPE) be added in high-speed mixer, mix 3-5 minutes,
Polyethylene wax is added during mixing；
S3. the first masterbatch for having mixed completion in step S1 and step S2 and the second masterbatch are taken out, is added separately to twin-screw
Extruding pelletization, each section of set temperature of double screw extruder are carried out in extruder are as follows: one section: 173 DEG C, two sections: 171 DEG C, three sections:
167 DEG C, four sections: 172 DEG C, five sections: 179 DEG C, six sections: 185 DEG C, seven sections: 180 DEG C, eight sections: 176 DEG C, nine sections: 175 DEG C, ten sections:
170 DEG C, head: 175 DEG C；Gained pellet is dried at not higher than 60 DEG C；
S4. by resulting the first masterbatch of plastic grain of step S3 and the second masterbatch, with low density polyethylene (LDPE) by setting mass ratio (5:
It 5:90) is added in low speed mixer, mixes 4-5 minutes；
S5. the plastic grain after the completion of step S4 being mixed, which is added in upper blowing method inflation film manufacturing machine, is blow molded into film, temperature setting are as follows:
One section: 120 DEG C, two sections: 135 DEG C, three sections: 135 DEG C, die head temperature: 140 DEG C, draw ratio 2.8-4.2, blow-up ratio 2.8-
4.2；Control film thickness is 0.10~0.15mm ± 0.1mm.
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Application publication date: 20190917 |