CN110328943A - Open-type high sealing plastic-aluminum epiphragma - Google Patents

Open-type high sealing plastic-aluminum epiphragma Download PDF

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Publication number
CN110328943A
CN110328943A CN201910488116.7A CN201910488116A CN110328943A CN 110328943 A CN110328943 A CN 110328943A CN 201910488116 A CN201910488116 A CN 201910488116A CN 110328943 A CN110328943 A CN 110328943A
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China
Prior art keywords
layer
parts
open
type high
high sealing
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CN201910488116.7A
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Chinese (zh)
Inventor
高文定
吴亚飞
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LONG SHENG JIANGSU PHARMACEUTICAL PACKAGING MATERIAL Co Ltd
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LONG SHENG JIANGSU PHARMACEUTICAL PACKAGING MATERIAL Co Ltd
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Priority to CN201910488116.7A priority Critical patent/CN110328943A/en
Publication of CN110328943A publication Critical patent/CN110328943A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
    • B65D53/06—Sealings formed by liquid or plastic material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04—Polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/12—Mixture of at least two particles made of different materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7246—Water vapor barrier
    • 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
    • C08K2003/2217—Oxides; Hydroxides of metals of magnesium
    • C08K2003/222—Magnesia, i.e. magnesium oxide
    • 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
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc
    • 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
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3009—Sulfides
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/066—LDPE (radical process)

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses a kind of open-type high sealing plastic-aluminum epiphragmas, and including hot sealing layer, the easy-peel absciss layer set gradually, barrier layer, modified binder layer and protective layer, hot sealing layer includes the raw material of following parts by weight: 30-70 parts of metallocene low density polyethylene (LDPE)；30-70 parts of ethylene-vinyl acetate copolymer；20-50 parts of acrylic resin；20-50 parts of ethylene methyl acrylate；20-40 parts of polycarbonate；20-40 parts of polyamide；10-40 parts of polyolefin elastomer；First 10-80 parts of filler.The hot sealing layer of internal layer of the present invention has excellent toughness, stress cracking resistance and heat sealability, can be sealed well with various containers, and antipollution heat sealability is excellent；And by compounding other raw materials, making hot sealing layer also has good gas permeability, and substance after sealing in container enters in surrounding air after capable of effectively distributing gas and reaches due effect, meets the needs of user.

Description

Open-type high sealing plastic-aluminum epiphragma
Technical field
The present invention relates to packaging material field, in particular to a kind of open-type high sealing plastic-aluminum epiphragma.
Background technique
Currently, generally needing a kind of plastic-aluminum epiphragma in some applications, it is used to be encapsulated in the opening of plastic containers simultaneously And be easy to be stripped, by the way that by after outer layer plastic-aluminum film stripping, internal layer hot sealing layer is still completely welded on plastic containers, and container The gas that interior substance gives out can effectively enter in surrounding air through heat-sealing film, reach therapeutic purposes or enhancement of environment Purpose.Such as the packaging of aromatic, champignon, insect-proof agent, camphor ball etc., it needs to seal well in storage and transport process, user uses When outer layer plastic-aluminum film stripping, internal layer hot sealing layer still need to be completely welded on plastic containers, and internal gas can penetrate internal layer Hot sealing layer enters in surrounding air.The generally existing following defect of general plastic-aluminum epiphragma used on Vehicles Collected from Market: 1, barrier layer and Internal layer hot sealing layer adhesion strength is excessively high, is not easily stripped；2, the moist preferable gas barrier property simultaneously of internal layer heat-sealing layer material resistance is also preferable, when The gas that substance after sealing in container cannot give out enters in surrounding air；3, heat-sealing layer material antipollution seals effect not It is good, cause leakage after sealing, gas leakage serious；4, each layer bonding stability of plastic-aluminum epiphragma is inadequate.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that it is high to provide a kind of open-type Seal aluminum plastic epiphragma.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of open-type high sealing plastic-aluminum epiphragma, packet Include the hot sealing layer set gradually, easy-peel absciss layer, barrier layer, modified binder layer and protective layer,
The hot sealing layer includes the raw material of following parts by weight:
Preferably, first filler includes the raw material of following parts by weight:
Preferably, the hot sealing layer includes the raw material of following parts by weight:
Preferably, institute's adhesive layer is obtained by modified binder through drying and moulding, the modified binder include with The material of lower parts by weight:
Preferably, the modified binder includes the material of following parts by weight:
Preferably, second filler is the mixture of super glass wool, nano alumina powder and nano-calcium carbonate calcium powder.
Preferably, the auxiliary agent includes solvent, stabilizer and coupling agent.
Preferably, the barrier layer is soft state aluminium foil layer.
Preferably, the protective layer is polyester layer.
Preferably, the barrier layer with a thickness of between 10 microns -20 microns.
The beneficial effects of the present invention are: open-type high sealing plastic-aluminum epiphragma of the invention, the hot sealing layer of internal layer has excellent Different toughness, stress cracking resistance and heat sealability can be sealed with various containers well, and antipollution heat sealability is excellent It is good；And by compounding other raw materials, making hot sealing layer also has good gas permeability, and substance after sealing in container can be effective Enter in surrounding air after gas is distributed and reach due effect, meets the needs of user；Simultaneously hot sealing layer also have compared with Good antibacterial bacteriostatic performance, usage experience is more preferably.Modified binder layer can provide stable, firm adhesive property, ensure that aluminium Mould the integrally-built stability of epiphragma.Peeling layer can effectively bond aluminium foil layer and inner layer material, and ensure that peel strength is lower, Achieve the effect that ideal easily peelable.
Detailed description of the invention
The structural schematic diagram that Fig. 1 is.
Description of symbols:
1-hot sealing layer；2-easy-peel absciss layers；3-barrier layers；4-modified binder layers；5-protective layers.
Specific embodiment
The present invention will be further described in detail below with reference to the embodiments, to enable those skilled in the art referring to specification Text can be implemented accordingly.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein are not precluded one or more The presence or addition of a other elements or combinations thereof.
As shown in Figure 1, a kind of open-type high sealing plastic-aluminum epiphragma of the present embodiment, including the hot sealing layer 1, easily set gradually Peeling layer 2, barrier layer 3, modified binder layer 4 and protective layer 5,
Hot sealing layer includes the raw material of following parts by weight:
Wherein, the first filler includes the raw material of following parts by weight:
Wherein, metallocene PE has linear polyethylene structure, has than normal linear low density polyethylene (LDPE) higher anti- Tensile strength, extensibility, low temperature heat seal, metallocene PE can be modified ethylene-vinyl acetate copolymer, make ethylene- The flexibility of acetate ethylene copolymer improves, and viscoplasticity improves, and permeability rises, rigidity and softening point decline, proof stress Cracking behavior improves.Ethylene methyl acrylate and acrylic resin, polycarbonate, polyamide, polyolefin elastomer blending can be effective The impact strength and toughness of hot sealing layer are improved, heat sealability is enhanced.
Wherein, methyl p-hydroxybenzoate can improve antibacterial bacteriostatic performance；The addition of nano oxidized magnesium powder can improve toughness, Stability and intensity；Nano zinc oxide powder can improve the uniform compactness of material internal, improve mechanical strength and ageing resistance It can, moreover it is possible to improve anti-microbial property.Nano oxidized magnesium powder, methyl p-hydroxybenzoate, nano zinc oxide powder are used in compounding, and can be produced Raw collaboration reinforcing effect, greatly improves toughness, the mechanical strength of hot sealing layer obtained, also has good bacteria resistance Energy.Carbon nano-fiber can improve nanofiber with the features such as light weight, intensity is big, can effectively improve the mechanical property of hot sealing layer Can, and the gas permeability of hot sealing layer can also be improved.
The production method of hot sealing layer can are as follows: stock, spice, extrusion forming, post-processing.
Adhesive layer is obtained by modified binder through drying and moulding, and modified binder includes the material of following parts by weight:
Wherein, poly methylene poly phenyl poly isocyanate can improve adhesive property, maleic anhydride modified polyolefin resin Addition can effectively improve the cohesive force of modified binder.Polyvinyl alcohol, allyl phenyl ether gathers and polyurethane formulation, improves energy The ageing-resistant performance of the modified binder of raising.
Wherein, rosin can be modified polyurethane, can improve the toughness of final obtained modified adhesive layer, extensibility and Shock resistance.Enclosed -1,2- bis- carbon, ten diboranes of generation can be modified polyurethane, improve modified adhesive layer obtained Chemical stability and thermal stability.The nano-carbon powder of addition can improve intensity, remove odors, moreover it is possible to improve solid content.Curing Molybdenum has good lubricity, can improve the compatibility of raw material.Molybdenum disulfide can generate with erucyl amide compounding addition and cooperate with effect It answers, each component in material can be promoted to mix uniformity, stability and adhesion strength compatible, that improve binder.
Second filler is the mixture of super glass wool, nano alumina powder and nano-calcium carbonate calcium powder.Wherein, superfine glass The outstanding advantages that cotton has constitution light, corrosion-resistant, heat-resisting；Nano-calcium carbonate calcium powder can improve adhesion strength and heat resistance；Nanometer Alumina powder can improve dispersion performance, fatigue performance and creep-resistant property.Super glass wool, nano alumina powder and nano-sized carbon Sour calcium powder compounding addition, can generate collaboration reinforcing effect, greatly improve adhesion strength, the corrosion resistance of modified adhesive layer obtained Energy, heat resistance, fatigue performance.
Auxiliary agent includes solvent, stabilizer and coupling agent, and solvent, stabilizer and coupling agent can carry out conventional selection, be not required to It is specific to limit.
The present invention also provides a kind of preparation methods of modified binder, comprising the following steps:
1) by polyurethane, poly methylene poly phenyl poly isocyanate, maleic anhydride modified polyolefin resin, polyethylene It is uniform that heating stirring in stirred tank is added in alcohol, allyl phenyl ether, rosin, enclosed -1,2- two carbon, ten diboranes of generation and auxiliary agent；
2) nano-carbon powder, molybdenum disulfide, erucyl amide and the second filler are continuously added, heats and stirs evenly；
3) curing agent is added, stirs evenly, obtains modified binder.
In a preferred embodiment, barrier layer is soft state aluminium foil layer.Protective layer is polyester layer.Peeling layer preferably coats grade Polyethylene.More preferably, barrier layer with a thickness of between 10 microns -20 microns.
Integral product of the present invention the preparation method comprises the following steps: it is compound using dry type, squeeze out the modes such as compound or coextrusion casting and carry out Production.It is such as produced using coextrusion casting method, comprising: stock, winding, is divided Multi-layer coextruding die head extrusion, inflation, cooling and shaping It cuts.
When the use of product of the present invention: being covered in the opening of container by hot sealing layer and seal adherency, protective layer has It can print, prevent the functions such as aluminium foil oxidation；Barrier layer (soft state aluminium foil layer) has good barrier property, can obstruct the external world Water, oxygen enter, and avoid internal substance rotten；Modified binder is by protective layer and barrier layer secure bond；At easy-peel absciss layer It is direct in hot sealing layer and barrier layer, facilitate ultimate consumer to open use.It opens post heat-seal layer to be covered in the opening of container, have Have and hinder wet and permeability well, distributes the gas in container and get into the air.Suitable for daily use chemicals, medicine, food Etc. the packaging of the application field, such as aromatic, champignon, insect-proof agent, camphor ball for thering is this to require etc..
Specific embodiment and comparative example presented below, to be described further.
Embodiment 1
Hot sealing layer includes the raw material of following parts by weight:
Modified binder includes the material of following parts by weight:
Second filler is the mixture of super glass wool, nano alumina powder and nano-calcium carbonate calcium powder.Auxiliary agent include solvent, Stabilizer and coupling agent.
Embodiment 2
Hot sealing layer includes the raw material of following parts by weight:
Modified binder includes the material of following parts by weight:
Second filler is the mixture of super glass wool, nano alumina powder and nano-calcium carbonate calcium powder.Auxiliary agent include solvent, Stabilizer and coupling agent.
Embodiment 3
Hot sealing layer includes the raw material of following parts by weight:
Modified binder includes the material of following parts by weight:
Second filler is the mixture of super glass wool, nano alumina powder and nano-calcium carbonate calcium powder.Auxiliary agent include solvent, Stabilizer and coupling agent.
Comparative example 1
Hot sealing layer includes the raw material of following parts by weight:
Modified binder includes the material of following parts by weight:
Second filler is the mixture of super glass wool, nano alumina powder and nano-calcium carbonate calcium powder.Auxiliary agent include solvent, Stabilizer and coupling agent.
Comparative example 2
Comparative example 2 compared with Example 1, without containing the first filler (nano oxidized magnesium powder, nano zinc oxide powder, to hydroxyl Methyl benzoate, carbon nano-fiber), remaining ingredient and and its mass fraction it is all the same.
The hot sealing layer obtained to embodiment 1, comparative example 1 and 2 is tested for the property:
Permeability test, reference standard: GB/T 1038-2000；Equipment: gas permeability detector；
Lateral angle tear strength, longitudinal angle tear strength, reference standard: QB/T 1130-1991；Equipment: plastics are thin Film tear strength properties tester.
Test result: the hot sealing layer gas permeability of embodiment 1 improves 42% compared to comparative example 1, mentions relative to comparative example 2 It is high by 31%；The lateral angle tear strength of embodiment 1 improves 60% compared to comparative example 1, improves relative to comparative example 2 72%；Longitudinal angle tear strength of embodiment 1 improves 61% compared to comparative example 1, improves relative to comparative example 2 70%.
Illustrate that the addition of acrylic resin, ethylene methyl acrylate, polycarbonate, polyamide, polyolefin elastomer can be shown Write the permeability and toughness for improving hot sealing layer.The addition of first filler can not only improve the gas permeability of hot sealing layer, moreover it is possible to significant Improve the mechanical strength of hot sealing layer.
Comparative example 3
Compared with Example 1, modified binder replaces with common commercial polyurethane adhesive to comparative example 3, remaining ingredient and And its mass fraction is all the same.
Comparative example 4
Comparative example 4 compared with Example 1, does not contain the second filler (super glass wool, nano alumina powder and nano-calcium carbonate The mixture of calcium powder), remaining ingredient and and its mass fraction it is all the same.
The adhesive for polyurethane performance test of modified binder and comparative example 3 to embodiment 1 and comparative example 4, test Its peel strength, reference standard: GB-T 2791-1995.
Test result: for embodiment 1 compared with comparative example 3, the peel strength of embodiment 1 improves 80%；Embodiment 1 with it is right Ratio 4 is compared, and the peel strength of embodiment 1 improves 42%.Illustrate that the adhesion strength of the modified binder of the application is significantly high In common commercial polyurethane gluing.And it can be seen that the addition of the second filler by the comparison result of embodiment 1 and comparative example 4 Significantly improve the adhesion strength of modified binder.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited In specific details.

Claims (10)

1. a kind of open-type high sealing plastic-aluminum epiphragma, which is characterized in that including hot sealing layer, the easy-peel absciss layer set gradually, barrier Layer, modified binder layer and protective layer,
The hot sealing layer includes the raw material of following parts by weight:
2. open-type high sealing plastic-aluminum epiphragma according to claim 2, which is characterized in that first filler includes following The raw material of parts by weight:
3. open-type high sealing plastic-aluminum epiphragma according to claim 3, which is characterized in that the hot sealing layer includes following heavy Measure the raw material of part:
4. open-type high sealing plastic-aluminum epiphragma described in any one of -3 according to claim 1, which is characterized in that the bonding Layer is obtained by modified binder through drying and moulding, and the modified binder includes the material of following parts by weight:
5. open-type high sealing plastic-aluminum epiphragma according to claim 4, which is characterized in that the modified binder include with The material of lower parts by weight:
6. open-type high sealing plastic-aluminum epiphragma according to claim 4, which is characterized in that second filler is ultra-fine glass Glass cotton, nano alumina powder and nano-calcium carbonate calcium powder mixture.
7. open-type high sealing plastic-aluminum epiphragma according to claim 4, which is characterized in that the auxiliary agent includes solvent, steady Determine agent and coupling agent.
8. open-type high sealing plastic-aluminum epiphragma according to claim 1, which is characterized in that the barrier layer is soft state aluminium foil Layer.
9. open-type high sealing plastic-aluminum epiphragma according to claim 1, which is characterized in that the protective layer is polyester layer.
10. open-type high sealing plastic-aluminum epiphragma according to claim 8, which is characterized in that the barrier layer with a thickness of Between 10 microns -20 microns.
CN201910488116.7A 2019-06-05 2019-06-05 Open-type high sealing plastic-aluminum epiphragma Pending CN110328943A (en)

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Cited By (1)

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CN115384160A (en) * 2022-09-23 2022-11-25 湖南怡永丰新材料科技有限公司 Covering film for powder-liquid double-chamber bag and preparation method and application thereof

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CN201372022Y (en) * 2008-12-05 2009-12-30 江阴宝柏包装有限公司 Easily torn aluminum-plastic composite packing film for suppository
CN102191006A (en) * 2010-03-15 2011-09-21 张耀华 Production method of polyurethane adhesive
CN102380983A (en) * 2010-09-06 2012-03-21 苏州海顺包装材料有限公司 Easy-to-peel cover film
CN105197399A (en) * 2015-08-24 2015-12-30 金石包装（嘉兴）有限公司 Easily-uncover aluminum plastic compound single film for glass bottle sealing opening
CN109228575A (en) * 2018-10-30 2019-01-18 上海恩捷新材料科技有限公司 A kind of plastic-aluminum membrane structure

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Publication number Priority date Publication date Assignee Title
CN201372022Y (en) * 2008-12-05 2009-12-30 江阴宝柏包装有限公司 Easily torn aluminum-plastic composite packing film for suppository
CN102191006A (en) * 2010-03-15 2011-09-21 张耀华 Production method of polyurethane adhesive
CN102380983A (en) * 2010-09-06 2012-03-21 苏州海顺包装材料有限公司 Easy-to-peel cover film
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Application publication date: 20191015