CN107973960A - Low film masterbatch for separating out color inhibition features and preparation method thereof - Google Patents
Low film masterbatch for separating out color inhibition features and preparation method thereof Download PDFInfo
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- 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
- 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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- 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
- C08J2323/08—Copolymers of ethene
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- 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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- 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
- C08J2423/08—Copolymers of ethene
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- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/527—Cyclic esters
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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
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
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Abstract
The invention discloses a kind of low film masterbatch for separating out color inhibition features and preparation method thereof, belong to processing of high molecular material technical field of modification.The film masterbatch is made of the component counted in parts by weight as follows：14~60 parts of polyethylene, 5~20 parts of POP modelings bodies, 1~75 part of colouring agent, 0.1~5 part of antioxidant, 0.1~5 part of UV light stabilizing agent, 0.5~5 part of micro-porous adsorption agent, 0.2~5 part of macromolecule plumper and 0~70 part of filler.The application does not add simple plasticizer in wax and stearic acid etc., and remove issuable low-molecular-weight component in process by adding porous adsorbent, the film product for assigning its coloring has good resistance to precipitation performance, is suitable for high speed heat-sealing demand, obtains good heat seal strength.The thermo-oxidative stability that material is improved by adding high-efficiency anti-oxidant, the UV light stabilizing agent for adding high molecular weight improve the ultraviolet light and aging performance of material, obtain good anti-yellowing property.
Description
Technical field
The invention belongs to processing of high molecular material technical field of modification, more particularly to a kind of low precipitation color inhibition features
Film masterbatch and preparation method thereof, the film masterbatch have it is low separate out, the characteristic of color inhibition and coloring.
Background technology
Plastic material has the advantage such as relatively low proportion, sealing, waterproof, of low cost, in packaging field using increasingly extensive.
In recent years.As packing technique automates, high speed develops and the present situation of product competition aggravation, to the high speed heat sealability of film
Energy, color stability aspects are continuously improved.
Pack the coloring of product and appearance directly affects the image appearance of product, and production marketing is produced direct
Influence.The product packed using brilliant white and bright-coloured colorful film, can obtain good visual impact, it is easier to by
To the favor of consumer.
Plastic package material be subject in use the storage condition of illumination or long term high temperature easily occur turn yellow and
The problems such as colour-darkening, directly affect the image appearance of packaging product, triggers consumer to take for product and goes bad or more than guaranteeing the quality
The adverse consequences such as phase.Therefore, food, daily necessities, courier bag and industrial products want package design, colour match, design
Ask increasingly harsh, vividness, stability requirement to packaging film color are continuously improved.
For film packing material, xanthochromia or the main reason for colour-darkening, which occurs, to be had：(1) pigment in masterbatch is resistance to
Heat, ultraviolet-resistant performance are poor, and weather stain occurs under high temperature or ultraviolet light；(2) heat ageing and light aging occur for plastics,
Produce acidic materials accelerated ageing.
In addition, commonly used with automatic packaging equipment, plastics package must adapt to the requirement of heat-sealing at a high speed.Influence
Expect that high speed speed and the sealing strength of film are mainly related with the low-molecular-weight component in material：Stearic acid, stearate, low molecule
The components such as wax can influence heat sealability to a certain extent.Therefore, it is to improve heat-sealing to reduce the low molecular composition content in masterbatch
Speed and the effective means for improving sealing strength.
Exploitation is free of low-molecular-weight component, has the coloring multifunctional concentrate of good resistance to precipitation and color inhibition, could meet
The high speed development demand of modern packaging material, has good market application foreground.
The content of the invention
The primary and foremost purpose of the present invention is to overcome the technological deficiency that presently, there are, there is provided a kind of low precipitation color inhibition special type work(
The film masterbatch of energy.The film masterbatch has the function of low precipitation, color inhibition and coloring etc..The application is by adding modifying agent as moulded
The components such as body, efficient plumper and porous adsorbent improve the yellowing resistance energy of masterbatch, reduce low molecule precipitate, obtain good
Good heat sealability and colour stability.
Another object of the present invention is to provide the preparation method of the film masterbatch.
The purpose of the present invention is achieved through the following technical solutions：
A kind of low film masterbatch for separating out color inhibition features, is made of the component counted in parts by weight as follows：14~
60 parts of polyethylene, 5~20 parts of POP modelings bodies, 1~75 part of colouring agent, 0.1~5 part of antioxidant, 0.1~5 part of ultraviolet light stabilized
Agent, 0.5~5 part of micro-porous adsorption agent, 0.2~5 part of macromolecule plumper and 0~70 part of filler.
Melt flow rate (MFR) of the polyethylene in 190 DEG C of temperature, load 2.16kg is 10~50g/10min.
The polyethylene is preferably low density polyethylene (LDPE) (LDPE), linear low density polyethylene (LLDPE) and combinations thereof
Thing.Polyethylene is mainly used as the carrier of film masterbatch.
The number-average molecular weight of the POP modeling bodies is 50000~80000, and fusing point≤60 DEG C, it is in 190 DEG C of temperature, load
Melt flow rate (MFR) during lotus 2.16kg is 300~1500g/10min.
The POP moulds the copolymer that body is preferably ethene and alpha-olefin, its energy in the preparation process of film masterbatch
Enough play the role of dispersant, reduce heat-sealing temperature and widen heat-sealing window etc..
The colouring agent is organic pigment or/and inorganic pigment.
The organic pigment is at least one of phthalocyanine blue, dark green, acridine color and azo pigments.
The inorganic pigment is at least one of titanium dioxide, zinc white barium, zinc sulphide, carbon black, titan yellow and iron oxide red.
Colouring agent can use one or more of mixtures of organic pigment and inorganic pigment, its effect is mainly to provide
Colouring function.
The antioxidant is triazine kind antioxidant and the mixture of phosphoric acid ester antioxidant.
The triazine kind antioxidant is preferably antioxidant 1790；The phosphoric acid ester antioxidant is preferably antioxidant
626 or antioxidant 627.Antioxidant is mainly used for improving the heat-resisting oxidability of material.
The UV light stabilizing agent is hindered amine stabilizer, is preferably 944 or/and 622, and it is to improve material that it, which is acted on,
Ageing resistance by ultraviolet light ability.
The macromolecule plumper is the copolymer of ethylene-methyl methacrylate ethylene oxidic ester；The number of the copolymer
Average molecular weight is not less than 1.5% not less than the content of 30,000, glycidyl methacrylate.The epoxy group of macromolecule plumper
Group can chemically react with the acidic components in packaging material, so as to remove the acidic components in material, improve packing timber
The anti-yellowing property of material.
The porous adsorbent preferably refers to zeolite molecular sieve.Zeolite molecular sieve is that one kind is porous, has good adsorption
The inorganic material of ability, acts on the low-molecular-weight component in sorbing material, can further improve the resistance to precipitation of film in formula
Performance.
The filler is one kind or at least two mixture in calcium carbonate, talcum powder or barium sulfate.Filler
Effect be to reduce cost, but the filler cannot be surface-treated using any organic matter.
The preparation method of the film masterbatch, includes the following steps：By 14~60 parts of polyethylene, 5~20 parts of POP modeling bullets
Body, 1~75 part of colouring agent, 0.1~5 part of antioxidant, 0.1~5 part of UV light stabilizing agent, 0.5~5 part of micro-porous adsorption agent, 0.2~
5 parts of macromolecule plumper and 0~70 part of filler are uniformly mixed, and obtain mixture；The mixture and extruding pelletization are melted, is obtained
To novel thin film masterbatch；The number is parts by weight.
Preferably, simultaneously extruding pelletization uses one-step method to the melting mixture, in 160~200 DEG C of temperature, rotating speed
200~800rpm carries out melting mixing and granulation through double screw extruder.
Preferably, simultaneously extruding pelletization uses two-step method to the melting mixture, first using mixer or double turns
Sub continuous mixing equipment carries out melting mixing, and temperature is 160~200 DEG C；Then it is granulated using single screw extrusion machine, temperature is
150~190 DEG C, the rotating speed of extruder is 100~300rpm.
The present invention is had the following advantages relative to the prior art and effect：
(1) simple plasticizer in itself no addition wax and stearic acid etc. in being formulated, and by adding porous adsorbent
Issuable low-molecular-weight component in process is removed, the film product for assigning its coloring has good resistance to precipitation performance,
High speed heat-sealing demand is suitable for, obtains good heat seal strength.
(2) high-efficiency anti-oxidant is added to improve the thermo-oxidative stability of material, add the UV light stabilizing agent raising of high molecular weight
The ultraviolet light and aging performance of material, obtains good anti-yellowing property.
(3) by adding macromolecule plumper, the acidic components produced in process is removed, further improve antioxidant
With the efficiency of UV light stabilizing agent.
Embodiment
With reference to embodiment, the present invention is described in further detail, but the implementation of the present invention is not limited to this.
The film masterbatch of low precipitation color inhibition features prepared by the present invention is surveyed under conditions of 190 DEG C, 2.16kg
Melt index is tried, evaluates its processing performance.
The film masterbatch of low precipitation color inhibition features prepared by the present invention and linear low density polyethylene (LLDPE
7042), low density polyethylene (LDPE) (LDPE 1F7B) blown film by a certain percentage, testing film density, heat seal strength, tensile strength and
Elongation at break is compared evaluation.
The film masterbatch of low precipitation color inhibition features prepared by the present invention and the performance using its film prepared
Test method is as follows：
Melt index is tested according to GB 3682-2000,190 DEG C of temperature, load 5Kg.
Tensile strength and elongation at break are tested by GB/T 1040.3-2006, rate of extension 500mm/min, using 2
Type sample, width 10mm, fixture initial distance 50mm.
Heat seal strength is carried out according to GB/T 2598-1998 plastic film packaging bag heat-seal strengths experimental method.
The anti-yellowing property test of the film masterbatch of low precipitation color inhibition features prepared by the present invention is first by it
Addition prepares film in the plastic, by accelerating the value of chromatism change before and after thermo-oxidative ageing and light aging to be evaluated.Value of chromatism
It is smaller, illustrate that its anti-yellowing property is better.
Thermo-oxidative ageing is accelerated to be carried out by GB/T 7141-2008 methods, it is thin before and after 168h acceleration thermo-oxidative ageing at 80 DEG C of test
Film value of chromatism changes, and evaluates its heatproof air aging performance.
Method test of the accelerated light ageing as described in GB/T 15596-2009, using artificial weathering test side
The change of value of chromatism, evaluates its resistance to UV aging energy before and after method test 168h.
Embodiment 1
Weighing and dispensing according to the following formulation：20 parts of low density polyethylene (LDPE), 5 parts of body of POP modelings, 65 parts of titanium dioxide, ethene-first
3 parts of base glycidyl acrylate, 1,790 0.5 parts of antioxidant, 626 0.5 parts of antioxidant, UV light stabilizing agent 944 1 part, point
Sub- 5 parts of sieve adsorbant.
Above-mentioned each component is uniform using mixer premix, then it is kneaded using Double-rotor continuous mixing equipment, extrusion is made
Grain, obtains the film masterbatch of low precipitation color inhibition features, 170 DEG C of melting temperature, rotor speed 600rpm, extruder temperature
180 DEG C, engine speed 400rpm.
The preparation-obtained low film masterbatch for separating out color inhibition features and linear low density polyethylene (LLDPE
7042), low density polyethylene (LDPE) (LDPE 1F7B) presses 15:75:10 ratio blown films, 170 DEG C of blown film temperature.
Embodiment 2
Weighing and dispensing according to the following formulation：15 parts of low density polyethylene (LDPE), 15 parts of body of POP modelings, 45 parts of titanium dioxide, phthalocyanine blue
3 parts, 5 parts of ethylene-methyl methacrylate ethylene oxidic ester, 1,790 5 parts of antioxidant, 626 5 parts of antioxidant, UV light stabilizing agent 944
2 parts, 5 parts of adsorbent of molecular sieve.
Above-mentioned each component is uniform using mixer premix, then made using mixer mixing, single screw extrusion machine extrusion
Grain, obtain it is low precipitation color inhibition features film masterbatch, extruder temperature be set as 160 DEG C, 180 DEG C, 180 DEG C, 180
DEG C, engine speed 400rpm.
The preparation-obtained low film masterbatch for separating out color inhibition features and linear low density polyethylene (LLDPE
7042), low density polyethylene (LDPE) (LDPE 1F7B) presses 15:75:10 ratio blown films, 170 DEG C of blown film temperature.
Embodiment 3
Weighing and dispensing according to the following formulation：22 parts of linear low density polyethylene, 10 parts of body of POP modelings, 35 parts of titanium dioxide, charcoal
Black 2.5 parts, 3 parts of ethylene-methyl methacrylate ethylene oxidic ester, 1,790 1 parts of antioxidant, 627 1 parts of antioxidant, ultraviolet light stabilized
944 2.5 parts of agent, 622 2.5 parts of outer light stabilizer, 0.5 part of adsorbent of molecular sieve, 10 parts of calcium carbonate, 10 parts of barium sulfate.
Above-mentioned each component is uniform using mixer premix, then using double screw extruder extruding pelletization, obtain low analysis
Go out the film masterbatch of color inhibition features, extruder temperature is set as 160 DEG C, 180 DEG C, 180 DEG C, 180 DEG C, engine speed
400rpm。
The preparation-obtained low film masterbatch for separating out color inhibition features and linear low density polyethylene (LLDPE
7042), low density polyethylene (LDPE) (LDPE 1F7B) presses 15:75:10 ratio blown films, 170 DEG C of blown film temperature.
Embodiment 4
Weighing and dispensing according to the following formulation：5 parts of low density polyethylene (LDPE), 20 parts of linear low density polyethylene, POP modeling bodies 5
Part, 20 parts of Kui acridine red, 5 parts of ethylene-methyl methacrylate ethylene oxidic ester, 1,790 2 parts of antioxidant, 626 2 parts of antioxidant, purple
Outer 944 3 parts of light stabilizer, 3 parts of adsorbent of molecular sieve, 35 parts of barium sulfate.
Above-mentioned each component is uniform using mixer premix, then using double screw extruder extruding pelletization, obtain low analysis
Go out the film masterbatch of color inhibition features, extruder temperature is set as 160 DEG C, 180 DEG C, 180 DEG C, 180 DEG C, engine speed
400rpm。
The preparation-obtained low film masterbatch for separating out color inhibition features and linear low density polyethylene (LLDPE
7042), low density polyethylene (LDPE) (LDPE 1F7B) presses 15:75:10 ratio blown films, 170 DEG C of blown film temperature.
Embodiment 5
Weighing and dispensing according to the following formulation：15 parts of linear low density polyethylene, 5 parts of body of POP modelings, 5 parts of titanium dioxide, phthalein are blue or green
Green 1 part, 3 parts of ethylene-methyl methacrylate ethylene oxidic ester, 1,790 1 parts of antioxidant, 627 1 parts of antioxidant, UV light stabilizing agent
944 1 parts, 1 part of adsorbent of molecular sieve, 35 parts of barium sulfate, 30 parts of calcium carbonate, 7 parts of talcum powder.
Above-mentioned each component is uniform using mixer premix, then using double screw extruder extruding pelletization, obtain low analysis
Go out the film masterbatch of color inhibition features, extruder temperature is set as 160 DEG C, 180 DEG C, 180 DEG C, 180 DEG C, engine speed
400rpm。
The preparation-obtained low film masterbatch for separating out color inhibition features and linear low density polyethylene (LLDPE
7042), low density polyethylene (LDPE) (LDPE 1F7B) presses 15:75:10 ratio blown films, 170 DEG C of blown film temperature.
Comparative example 1
Weighing and dispensing according to the following formulation：30 parts of low density polyethylene (LDPE), 5 parts of Tissuemat E, 65 parts of titanium dioxide.
Above-mentioned each component is uniform using mixer premix, then it is kneaded using Double-rotor continuous mixing equipment, extrusion is made
Grain, 170 DEG C of melting temperature, rotor speed 600rpm, 180 DEG C of extruder temperature, engine speed 400rpm.
Preparation-obtained film masterbatch and linear low density polyethylene (LLDPE 7042), low density polyethylene (LDPE) (LDPE
1F7B) press 15:75:10 ratio blown films, 170 DEG C of blown film temperature.
Comparative example 2
Weighing and dispensing according to the following formulation：32 parts of low density polyethylene (LDPE), 15 parts of body of POP modelings, 1 part of zinc stearate, poly- second
4 parts of alkene wax, 45 parts of titanium dioxide, 3 parts of phthalocyanine blue.
Above-mentioned each component is uniform using mixer premix, then made using mixer mixing, single screw extrusion machine extrusion
Grain, extruder temperature are set as 160 DEG C, 180 DEG C, 180 DEG C, 180 DEG C, engine speed 400rpm.
Preparation-obtained film masterbatch and linear low density polyethylene (LLDPE 7042), low density polyethylene (LDPE) (LDPE
1F7B) press 15:75:10 ratio blown films, 170 DEG C of blown film temperature.
Comparative example 3
Weighing and dispensing according to the following formulation：37.5 parts of linear low density polyethylene, 1 part of zinc stearate, 4 parts of EVA waxes, titanium white
35 parts of powder, 2.5 parts of carbon black, 10 parts of calcium carbonate, 10 parts of barium sulfate.
Above-mentioned each component is uniform using mixer premix, then using double screw extruder extruding pelletization, extruder temperature
Degree is set as 160 DEG C, 180 DEG C, 180 DEG C, 180 DEG C, engine speed 400rpm.
Preparation-obtained film masterbatch and linear low density polyethylene (LLDPE 7042), low density polyethylene (LDPE) (LDPE
1F7B) press 15:75:10 ratio blown films, 170 DEG C of blown film temperature.
Melt index, other mechanical properties are tested to film masterbatch prepared by above-described embodiment 1-5 and comparative example 1-3
It is to add the performance that masterbatch prepares film.
The performance test results of the film masterbatch of the low precipitation color inhibition features of embodiment 1~5 are as shown in table 1.
The performance test results of the film masterbatch of the low precipitation color inhibition features of 1 embodiment 1~5 of table
The performance test results of comparative example 1~3 are as shown in table 2.
The performance test results of the film masterbatch of 2 comparative example 1~3 of table
| Project | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Masterbatch melt index (g/10min) | 4.2 | 5.8 | 4.5 |
| Heat seal strength (N/15cm) | 21.3 | 22.0 | 21.5 |
| Cross direction tear strength (N/cm) | 164 | 172 | 162 |
| Machine direction tear (N/cm) | 151 | 165 | 138 |
| Transverse tensile strength (MPa) | 26.9 | 28.2 | 28.7 |
| Transverse breakage elongation (%) | 554 | 605 | 527 |
| Longitudinal tensile strength (MPa) | 28.5 | 30.5 | 31.3 |
| Longitudinal elongation at break rate (%) | 493 | 569 | 452 |
| Aberration (Δ E) before and after thermo-oxidative ageing | 5.32 | 9.75 | 9.26 |
| Aberration (Δ E) before and after ultraviolet light and aging | 12.57 | 17.23 | 15.33 |
It was found from the experimental result of Tables 1 and 2, compared with the film masterbatch of comparative example 1-3, in embodiment 1-5
Value of chromatism before and after the low film masterbatch thermo-oxidative ageing for separating out color inhibition features, ultraviolet light and aging is greatly lowered, explanation
It has good heat-resisting oxidability and ultraviolet light and aging ability；Heat seal strength also than comparative example film masterbatch will
It is high by 20% or so, illustrate the heat sealability of film prepared by the low film masterbatch for separating out color inhibition features using the present invention
Preferably improved.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention and from above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of low film masterbatch for separating out color inhibition features, it is characterised in that by the component counted in parts by weight as follows
Composition：14~60 parts of polyethylene, 5~20 parts of POP modelings bodies, 1~75 part of colouring agent, 0.1~5 part of antioxidant, 0.1~5 part of purple
Outer light stabilizer, 0.5~5 part of micro-porous adsorption agent, 0.2~5 part of macromolecule plumper and 0~70 part of filler.
2. the low film masterbatch for separating out color inhibition features according to claim 1, it is characterised in that the poly- second
Melt flow rate (MFR) of the alkene in 190 DEG C of temperature, load 2.16kg is 10~50g/10min.
3. the low film masterbatch for separating out color inhibition features according to claim 1, it is characterised in that the POP
The number-average molecular weight for moulding body is 50000~80000, fusing point≤60 DEG C, its melt in 190 DEG C of temperature, load 2.16kg
Flow rate is 300~1500g/10min.
4. the low film masterbatch for separating out color inhibition features according to claim 1, it is characterised in that the coloring
Agent is organic pigment or/and inorganic pigment.
5. the low film masterbatch for separating out color inhibition features according to claim 4, it is characterised in that described is organic
Pigment is at least one of phthalocyanine blue, dark green, acridine color and azo pigments；
The inorganic pigment is at least one of titanium dioxide, zinc white barium, zinc sulphide, carbon black, titan yellow and iron oxide red.
6. the low film masterbatch for separating out color inhibition features according to claim 1, it is characterised in that the antioxygen
Agent is triazine kind antioxidant and the mixture of phosphoric acid ester antioxidant；The UV light stabilizing agent is hindered amine stabilizer.
7. the low film masterbatch for separating out color inhibition features according to claim 1, it is characterised in that the high score
Sub- plumper is the copolymer of ethylene-methyl methacrylate ethylene oxidic ester；The number-average molecular weight of the copolymer not less than 30,000,
The content of glycidyl methacrylate is not less than 1.5%；The porous adsorbent preferably refers to zeolite molecular sieve；It is described
Filler be calcium carbonate, talcum powder or barium sulfate in one kind or at least two mixture.
8. the preparation method of the low film masterbatch for separating out color inhibition features of claim 1-7 any one of them, its feature
It is, includes the following steps：14~60 parts of polyethylene, 5~20 parts of POP modelings bodies, 1~75 part of colouring agent, 0.1~5 part are resisted
Oxygen agent, 0.1~5 part of UV light stabilizing agent, 0.5~5 part of micro-porous adsorption agent, 0.2~5 part of macromolecule plumper and 0~70 part are filled out
Fill agent to be uniformly mixed, obtain mixture；The mixture and extruding pelletization are melted, obtains the thin of low precipitation color inhibition features
Film masterbatch；The number is parts by weight.
9. the preparation method of the low film masterbatch for separating out color inhibition features according to claim 8, it is characterised in that
Simultaneously extruding pelletization uses one-step method to the melting mixture, in 160~200 DEG C of temperature, 200~800rpm of rotating speed through double
Screw extruder carries out melting mixing and granulation.
10. the preparation method of the low film masterbatch for separating out color inhibition features according to claim 8, its feature exist
In simultaneously extruding pelletization uses two-step method to the melting mixture, is first set using mixer or the continuous batch mixing of birotor
Standby to carry out melting mixing, temperature is 160~200 DEG C；Then it is granulated using single screw extrusion machine, temperature is 150~190 DEG C, is squeezed
The rotating speed for going out machine is 100~300rpm.
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| CN114381034A (en) * | 2021-12-09 | 2022-04-22 | 宿迁联盛科技股份有限公司 | High-performance weather-resistant compound for agricultural polyolefin thin products and preparation method thereof |
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| CN113416331B (en) * | 2021-06-21 | 2024-01-02 | 上海灵敏包装材料有限公司 | Telescopic film for packaging box and heat sealing process thereof |
| CN114381034A (en) * | 2021-12-09 | 2022-04-22 | 宿迁联盛科技股份有限公司 | High-performance weather-resistant compound for agricultural polyolefin thin products and preparation method thereof |
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