CN104527160A - Hot belt forming composite aluminum hard sheet - Google Patents
Hot belt forming composite aluminum hard sheet Download PDFInfo
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- CN104527160A CN104527160A CN201410849894.1A CN201410849894A CN104527160A CN 104527160 A CN104527160 A CN 104527160A CN 201410849894 A CN201410849894 A CN 201410849894A CN 104527160 A CN104527160 A CN 104527160A
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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
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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
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
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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
- 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
-
- 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
- B32B27/22—Layered products comprising a layer of synthetic resin characterised by the use of special additives using plasticisers
-
- 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
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/132—Phenols containing keto groups, e.g. benzophenones
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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
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J127/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Adhesives based on derivatives of such polymers
- C09J127/02—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J127/04—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Adhesives based on derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C09J127/06—Homopolymers or copolymers of vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J167/00—Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Adhesives based on derivatives of such polymers
-
- 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
- C09J167/00—Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Adhesives based on derivatives of such polymers
- C09J167/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J169/00—Adhesives based on polycarbonates; Adhesives based on derivatives of polycarbonates
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- Chemical Kinetics & Catalysis (AREA)
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- Medicinal Chemistry (AREA)
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Abstract
The invention provides a hot belt forming composite aluminum hard sheet, and belongs to the technical field of officinal packaging materials. The hot belt forming composite aluminum hard sheet comprises a PET layer, an aluminum foil layer and a heat-seal adhesive layer, wherein the PET layer, the aluminum foil layer and the heat-seal adhesive layer are sequentially arranged. A glue layer is arranged between the PET layer and the aluminum foil layer, the density of glue in the glue layer is 4.8-5.0 g/cm<3>, the thickness of the PET layer is 25-35 micrometers, the thickness of the aluminum foil layer is 55-65 micrometers, and the total thickness of the hot belt forming composite aluminum hard sheet is 97-98 micrometers. According to the hot belt forming composite aluminum hard sheet, a PET alloy material which is reasonable in compatibility and reinforced by glass fibers is adopted as the PET layer, an aluminum foil material reasonable in compatibility is used as the aluminum foil layer, adhesive reasonable in compatibility is used as the heat-seal adhesive layer, and after multiple layers of transparent films are composited, the composite aluminum hard sheet is still transparent in overall effect, high in steam and oxygen barrier property, more symmetrical in structure, and capable of effectively improving warping and other phenomena possibly occurring in the using process and effectively prolonging the service life.
Description
Technical field
The invention belongs to acceptable packaging material technical field, particularly the tropical shaping clad aluminum stiff sheet of one.
Background technology
In existing drug packing material product, mostly be composite hard sheet structure, comprise: the infrastructure products such as PVC, PVC/PVDC, PVC/PE, PVC/ACLAR.Find through using, these composites existing are often only having the shortcoming of single barrier property to water vapour or oxygen.In addition, the material property in existing drug packing material is general, uses 3003 alloys as the aluminium foil in drug packing material.With the aluminium foil of 3003 alloy production, there is good punching performance, but due to Mn constituent content in alloy too high, when carrying out homogenizing annealing, crystal grain is easily grown up, when being rolled down to finished product thickness, surface inevitably there will be coarse-grain striped, and impact normally uses.On the other hand, due to the characteristic of 3003 alloys self, the intensity of material is higher, comparatively large to the loss of rolling equipment and punching device, needs to add a large amount of copper, manganese metal simultaneously, increases the production cost of enterprise.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of long service life, steam and oxygen are had to the tropical shaping clad aluminum stiff sheet of the energy of high barrier.
Object of the present invention realizes by following technical proposal: a kind of tropical shaping clad aluminum stiff sheet, comprise the pet layer, aluminium foil layer and the heat-sealing bonding oxidant layer that set gradually, it is characterized in that, be provided with glue layer between described pet layer and aluminium foil layer, the density of described glue layer glue is 4.8-5.0g/cm
3, the thickness of described pet layer is 25-35 μm, and the thickness of aluminium foil layer is 55-65 μm, and the gross thickness of the shaping clad aluminum stiff sheet in the described torrid zone is 97-98 μm.
In the shaping clad aluminum stiff sheet in the above-mentioned torrid zone, as preferably, the component of the PET alloy material of described pet layer by mass percent proportioning is: PBT:10-30%, PET:30-60%, glass fibre: 5-15%, plasticizer: 1-5%, lubricant: 1-3%, antioxidant: 0.5-1%, stabilizing agent: 0.1-2%.
Further preferably, described glass fibre is the alkali-free glass fibre of surface through silane coupler process.
Further preferably, described plasticizer is polyethylene glycol, and its molecular weight is 800-1500.
Further preferably, described lubricant is one or more in polysiloxanes, calcium stearate, paraffin.
Further preferably, described antioxidant is the compound of resistance phenol antioxidant and phosphite ester kind antioxidant.
Further preferably, described stabilizing agent is ESCALOL 567.
In the shaping clad aluminum stiff sheet in the above-mentioned torrid zone, as preferably, the PET alloy material of described pet layer obtains by following method:
(1) by PET dry 3-4 hour, PBT dry 3-5 hour at 130 DEG C-140 DEG C at 130 DEG C-150 DEG C, fire retardant is dry 30-45 minute at 80 DEG C-85 DEG C, stand-by;
(2) take PBT and PET after dry process by weight ratio, after mixing, then add the plasticizer, lubricant, antioxidant and the stabilizing agent that take by weight ratio, then add together in high-speed mixer and fully mix 10-20 minute;
(3) material, step (2) mixed again is by the main spout of double screw extruder, the alkali-free glass fibre of the surface taken by weight ratio through silane coupler process is added from the side spout of double screw extruder, material is carried out melt blending, melt temperature controls at 270 DEG C-290 DEG C, then undertaken cooling by the extruded stock of double screw extruder, air-dry, pelletizing, after drying the PET alloy material of pet layer.
PET alloy material of the present invention has both the advantage having PET and PBT, there is the features such as high temperature resistant, resistance to chemical attack, resistance to creep, rub resistance, electrical insulation capability be good, increase substantially its impact strength, hot strength, bending strength and heat distortion temperature by fiberglass reinforced, but also it is long to have good mobility, high-luster, high stability and life-span simultaneously.
In the shaping clad aluminum stiff sheet in the above-mentioned torrid zone, as preferably, composition and the percentage by weight of described aluminium foil layer aluminum foil material are: Si:0.35-0.50%, Fe:0.9-1.20%, Cu:0.05-0.12%, Mn:0.50-0.60%, Mg:0.02-0.05%, Cr:0.02-0.05%, Zn:0.02-0.05%, Ti:0.02-0.05%, surplus are Al.
Aluminium foil of the present invention is on the basis of 8011 alloys, component and content thereof are optimized, reduce Si constituent content, improve the content of Mn element, the intensity of material can be improved, simultaneously again with the Fe element of high-load, reduce the degree of supersaturation of Mn in aluminium, reduce the microsegregation of Mn, avoid the phenomenon of aluminium foil grain growth when homogenizing annealing.And reasonable compatibility other elements and content thereof, gather the advantage of 8011 alloys, not only increased aluminium foil intensity, rupture strength, also improved the rolling stability of aluminium foil simultaneously, production efficiency and yield rate, improve the surface quality of aluminium foil.
In the shaping clad aluminum stiff sheet in the above-mentioned torrid zone, as preferably, the processing method of described aluminium foil comprises the steps:
S1, melting, casting: according to described in above-mentioned aluminium foil composition and percentage by weight take raw material, the raw material taken is carried out melting at 730-760 DEG C, then carries out casting and obtain blank, the sotck thinkness after casting is 7.2 ± 0.3mm;
S2, homogenizing annealing: above-mentioned blank is carried out homogenizing annealing process at 560-580 DEG C, come out of the stove after isothermal holding 18-23 hour and be cooled to normal temperature;
S3, cold rolling: cooled blank to be carried out cold rolling, then under 320-380 DEG C of condition, carries out intermediate annealing, be incubated obtained aluminium foil after 25-28 hour.
In the shaping clad aluminum stiff sheet in the above-mentioned torrid zone, as preferably, the binding agent of described heat-sealing bonding oxidant layer is made up of each component of following weight percentage: acetone: 25-32%; Chloroethylene-vinyl acetate-maleic acid terpolymer resin: 18-25%; The copolymer of ethylene glycol-dimethyltrimethylene glycol-terephthalate-last of the ten Heavenly stems diester: 30-40%; Polyurethane: 5-10%; Merlon: 5-10%; Polyestercarbonate: 5-10%.
Not only thoroughly overcome the shortcoming of existing non-environment-friendly adhesive, maintain again the good comprehensive serviceability of this drug and food composite packing film simultaneously, thus improve the production technology quality grade of this compound soft packing material product well, achieve good environment protection modification effect.
In the shaping clad aluminum stiff sheet in the above-mentioned torrid zone, as preferably, the binding agent of described heat-sealing bonding oxidant layer obtains by following method: make solvent with acetone, add chloroethylene-vinyl acetate-maleic acid terpolymer resin as main body adhesion substance, be stirred in the temperature range of 55-65 DEG C and dissolve completely, add copolymer and polyurethane, Merlon, the polyestercarbonate of ethylene glycol-dimethyltrimethylene glycol-terephthalate-last of the ten Heavenly stems diester again, mix and form.
Compared with prior art, the present invention has the following advantages:
1, which floor hyaline membrane is after compound, and whole structure is still transparent, has high barrier property to steam and oxygen, and product structure is more symmetrical, can effectively improve the phenomenons such as the warpage that in use may occur.
2, aluminum foil material of the present invention is on the basis of 8011 alloys, component and content thereof are optimized, reduce Si constituent content, improve the content of Mn element, the intensity of material can be improved, simultaneously again with the Fe element of high-load, reduce the degree of supersaturation of Mn in aluminium, reduce the microsegregation of Mn, avoid the phenomenon of aluminium foil grain growth when homogenizing annealing, and reasonable compatibility other elements and content thereof, gather the advantage of 8011 alloys, not only increase aluminium foil intensity, rupture strength, also improve the rolling stability of aluminium foil simultaneously, production efficiency and yield rate, improve the surface quality of aluminium foil.
3, the PET alloy material of pet layer of the present invention is by its material composition of reasonable compatibility, by impact strength, the hot strength and heat distortion temperature etc. of glass fiber reinforcement PET alloy material, and then improve the combination property of tropical shaping clad aluminum stiff sheet, especially impact strength, stability, heat distortion temperature etc., and then improve its service life.
4, the binding agent of heat-sealing bonding oxidant layer of the present invention is by its composition of reasonable compatibility, composite interpolation polyurethane, Merlon, polyestercarbonate, improve the thermal property of binding agent and engineering properties and good tack, and ensure the impact of binding agent and the balance of mobility.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, 1, pet layer; 2, aluminium foil layer; 3, heat-sealing bonding oxidant layer; 4, glue layer.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figure 1, this tropical shaping clad aluminum stiff sheet comprises the pet layer 1, aluminium foil layer 2 and the heat-sealing bonding oxidant layer 3 that set gradually, is provided with glue layer 4 between described pet layer and aluminium foil layer, and the density of described glue layer glue is 4.8-5.0g/cm
3, the thickness of described plastic layer is 25-35 μm, and the thickness of aluminium foil layer is 55-65 μm, and the gross thickness of the shaping clad aluminum stiff sheet in the described torrid zone is 97-98 μm.The shaping clad aluminum stiff sheet in the present invention torrid zone has higher peel strength, and whole extruding layer is soft, toughness is strong, has high hot strength and elongation at break, and the aluminium that can effectively prevent product from may occur in cold stamping process splits and the problem such as absciss layer.
Wherein, adopt the PET of specific materials, the component of the PET alloy material of described pet layer by mass percent proportioning is: PBT:10-30%, PET:30-60%, glass fibre: 5-15%, plasticizer: 1-5%, lubricant: 1-3%, antioxidant: 0.5-1%, stabilizing agent: 0.1-2%.
Further preferably, described glass fibre is the alkali-free glass fibre of surface through silane coupler process; Described plasticizer is polyethylene glycol, and its molecular weight is 800-1500; Described lubricant is one or more in polysiloxanes, calcium stearate, paraffin; Described antioxidant is the compound of resistance phenol antioxidant and phosphite ester kind antioxidant; Described stabilizing agent is ESCALOL 567.
The PET alloy material of described pet layer obtains by following method:
(1) by PET dry 3-4 hour, PBT dry 3-5 hour at 130 DEG C-140 DEG C at 130 DEG C-150 DEG C, fire retardant is dry 30-45 minute at 80 DEG C-85 DEG C, stand-by;
(2) take PBT and PET after dry process by weight ratio, after mixing, then add the plasticizer, lubricant, antioxidant and the stabilizing agent that take by weight ratio, then add together in high-speed mixer and fully mix 10-20 minute;
(3) material, step (2) mixed again is by the main spout of double screw extruder, the alkali-free glass fibre of the surface taken by weight ratio through silane coupler process is added from the side spout of double screw extruder, material is carried out melt blending, melt temperature controls at 270 DEG C-290 DEG C, then undertaken cooling by the extruded stock of double screw extruder, air-dry, pelletizing, after drying the PET alloy material of pet layer.
Adopt the aluminium foil of specific materials, composition and the percentage by weight of described aluminium foil layer aluminum foil material are: Si:0.35-0.50%, Fe:0.9-1.20%, Cu:0.05-0.12%, Mn:0.50-0.60%, Mg:0.02-0.05%, Cr:0.02-0.05%, Zn:0.02-0.05%, Ti:0.02-0.05%, surplus are Al.
The processing method of described aluminium foil comprises the steps:
S1, melting, casting: according to described in above-mentioned aluminium foil composition and percentage by weight take raw material, the raw material taken is carried out melting at 730-760 DEG C, then carries out casting and obtain blank, the sotck thinkness after casting is 7.2 ± 0.3mm;
S2, homogenizing annealing: above-mentioned blank is carried out homogenizing annealing process at 560-580 DEG C, come out of the stove after isothermal holding 18-23 hour and be cooled to normal temperature;
S3, cold rolling: cooled blank to be carried out cold rolling, then under 320-380 DEG C of condition, carries out intermediate annealing, be incubated obtained aluminium foil after 25-28 hour.
Adopt the binding agent of specific components, the binding agent of described heat-sealing bonding oxidant layer is made up of each component of following weight percentage: acetone: 25-32%; Chloroethylene-vinyl acetate-maleic acid terpolymer resin: 18-25%; The copolymer of ethylene glycol-dimethyltrimethylene glycol-terephthalate-last of the ten Heavenly stems diester: 30-40%; Polyurethane: 5-10%; Merlon: 5-10%; Polyestercarbonate: 5-10%.
The binding agent of described heat-sealing bonding oxidant layer obtains by following method: make solvent with ketones solvent, add chloroethylene-vinyl acetate-maleic acid terpolymer resin as main body adhesion substance, be stirred in the temperature range of 55-65 DEG C and dissolve completely, add copolymer and polyurethane, Merlon, the polyestercarbonate of ethylene glycol-dimethyltrimethylene glycol-terephthalate-last of the ten Heavenly stems diester again, mix and form.
Embodiment 1
The shaping clad aluminum stiff sheet in a kind of torrid zone comprises the pet layer 1, aluminium foil layer 2 and the heat-sealing bonding oxidant layer 3 that set gradually, is provided with glue layer 4 between described pet layer and aluminium foil layer, and the density of described glue layer glue is 4.9g/cm
3, the thickness of described pet layer is 30 μm, and the thickness of aluminium foil layer is 60 μm, and the gross thickness of the shaping clad aluminum stiff sheet in the described torrid zone is 97.5 μm.
Wherein, the PET alloy material of described pet layer obtains by the following method:
By PET at 140 DEG C dry 3.5 hours, PBT at 135 DEG C dry 4 hours, fire retardant at 83 DEG C dry 35 minutes, stand-by;
Take PBT and PET after dry process by weight ratio, after mixing, then add the plasticizer, lubricant, antioxidant and the stabilizing agent that take by weight ratio, then add together in high-speed mixer and fully mix 15 minutes; Described weight proportion is: PBT:20%, PET:60%, glass fibre: 15%, plasticizer: 2%, lubricant: 2%, antioxidant: 0.5%, stabilizing agent: 0.5%; Wherein, described glass fibre is the alkali-free glass fibre of surface through silane coupler process; Described plasticizer is polyethylene glycol, and its molecular weight is 1200; Described lubricant is polysiloxanes; Described antioxidant is the compound of resistance phenol antioxidant and phosphite ester kind antioxidant; Described stabilizing agent is ESCALOL 567;
Again by the main spout of the above-mentioned material mixed by double screw extruder, the alkali-free glass fibre of the surface taken by weight ratio through silane coupler process is added from the side spout of double screw extruder, material is carried out melt blending, melt temperature controls at 280 DEG C, then undertaken cooling by the extruded stock of double screw extruder, air-dry, pelletizing, after drying the PET alloy material of pet layer.
The processing method of described aluminium foil comprises the steps:
Melting, casting: according to described in following aluminium foil composition and percentage by weight take raw material: Si:0.40%, Fe:1.10%, Cu:0.08%, Mn:0.55%, Mg:0.03%, Cr:0.03%, Zn:0.03%, Ti:0.03%, surplus are Al, the raw material taken is carried out melting at 740 DEG C, then carry out casting and obtain blank, the sotck thinkness after casting is 7.2mm;
Homogenizing annealing: above-mentioned blank is carried out homogenizing annealing process at 570 DEG C, isothermal holding is come out of the stove after 20 hours and is cooled to normal temperature;
Cold rolling: cooled blank is carried out cold rolling, then under 360 DEG C of conditions, carry out intermediate annealing, be incubated obtained aluminium foil after 26 hours.
The binding agent of described heat-sealing bonding oxidant layer obtains by the following method: make solvent with acetone, add chloroethylene-vinyl acetate-maleic acid terpolymer resin as main body adhesion substance, be stirred in the temperature range of 60 DEG C and dissolve completely, add copolymer and polyurethane, Merlon, the polyestercarbonate of ethylene glycol-dimethyltrimethylene glycol-terephthalate-last of the ten Heavenly stems diester again, mix and form.Wherein, binding agent is made up of each component of following weight percentage: acetone: 25%; Chloroethylene-vinyl acetate-maleic acid terpolymer resin: 25%; The copolymer of ethylene glycol-dimethyltrimethylene glycol-terephthalate-last of the ten Heavenly stems diester: 30%; Polyurethane: 10%; Merlon: 5%; Polyestercarbonate: 5%.
Embodiment 2
The shaping clad aluminum stiff sheet in a kind of torrid zone comprises the pet layer 1, aluminium foil layer 2 and the heat-sealing bonding oxidant layer 3 that set gradually, is provided with glue layer 4 between described pet layer and aluminium foil layer, and the density of described glue layer glue is 5.0g/cm
3, the thickness of described pet layer is 25 μm, and the thickness of aluminium foil layer is 65 μm, and the gross thickness of the shaping clad aluminum stiff sheet in the described torrid zone is 97 μm.
Wherein, the PET alloy material of described pet layer obtains by the following method:
By PET at 130 DEG C dry 4 hours, PBT at 130 DEG C dry 5 hours, fire retardant at 80 DEG C dry 45 minutes, stand-by;
Take PBT and PET after dry process by weight ratio, after mixing, then add the plasticizer, lubricant, antioxidant and the stabilizing agent that take by weight ratio, then add together in high-speed mixer and fully mix 20 minutes; Described weight proportion is: PBT:30%, PET:50%, glass fibre: 15%, plasticizer: 1%, lubricant: 2%, antioxidant: 1%, stabilizing agent: 1%; Wherein, described glass fibre is the alkali-free glass fibre of surface through silane coupler process; Described plasticizer is polyethylene glycol, and its molecular weight is 800; Described lubricant is calcium stearate; Described antioxidant is the compound of resistance phenol antioxidant and phosphite ester kind antioxidant; Described stabilizing agent is ESCALOL 567;
Again by the main spout of the above-mentioned material mixed by double screw extruder, the alkali-free glass fibre of the surface taken by weight ratio through silane coupler process is added from the side spout of double screw extruder, material is carried out melt blending, melt temperature controls at 270 DEG C DEG C, then undertaken cooling by the extruded stock of double screw extruder, air-dry, pelletizing, after drying the PET alloy material of pet layer.
The processing method of described aluminium foil comprises the steps:
Melting, casting: according to described in following aluminium foil composition and percentage by weight take raw material: Si:0.35%, Fe:1.20%, Cu:0.05%, Mn:0.60%, Mg:0.02%, Cr:0.05%, Zn:0.02%, Ti:0.05%, surplus are Al, the raw material taken is carried out melting at 730 DEG C, then carry out casting and obtain blank, the sotck thinkness after casting is 7.5mm;
Homogenizing annealing: above-mentioned blank is carried out homogenizing annealing process at 580 DEG C, isothermal holding is come out of the stove after 18 hours and is cooled to normal temperature;
Cold rolling: cooled blank is carried out cold rolling, then under 380 DEG C of conditions, carry out intermediate annealing, be incubated obtained aluminium foil after 25 hours.
The binding agent of described heat-sealing bonding oxidant layer obtains by the following method: make solvent with acetone, add chloroethylene-vinyl acetate-maleic acid terpolymer resin as main body adhesion substance, be stirred in the temperature range of 65 DEG C and dissolve completely, add copolymer and polyurethane, Merlon, the polyestercarbonate of ethylene glycol-dimethyltrimethylene glycol-terephthalate-last of the ten Heavenly stems diester again, mix and form.Wherein, binding agent is made up of each component of following weight percentage: acetone: 32%; Chloroethylene-vinyl acetate-maleic acid terpolymer resin: 18%; The copolymer of ethylene glycol-dimethyltrimethylene glycol-terephthalate-last of the ten Heavenly stems diester: 30%; Polyurethane: 5%; Merlon: 5%; Polyestercarbonate: 10%.
Embodiment 3
The shaping clad aluminum stiff sheet in a kind of torrid zone comprises the pet layer 1, aluminium foil layer 2 and the heat-sealing bonding oxidant layer 3 that set gradually, is provided with glue layer 4 between described pet layer and aluminium foil layer, and the density of described glue layer glue is 4.8g/cm
3, the thickness of described pet layer is 35 μm, and the thickness of aluminium foil layer is 55 μm, and the gross thickness of the shaping clad aluminum stiff sheet in the described torrid zone is 98 μm.
Wherein, the PET alloy material of described pet layer obtains by the following method:
By PET at 150 DEG C dry 3 hours, PBT at 140 DEG C dry 3 hours, fire retardant at 85 DEG C dry 30 minutes, stand-by;
Take PBT and PET after dry process by weight ratio, after mixing, then add the plasticizer, lubricant, antioxidant and the stabilizing agent that take by weight ratio, then add together in high-speed mixer and fully mix 10 minutes; Described weight proportion is: PBT:15%, PET:60%, glass fibre: 15%, plasticizer: 5%, lubricant: 2%, antioxidant: 1%, stabilizing agent: 2%; Wherein, described glass fibre is the alkali-free glass fibre of surface through silane coupler process; Described plasticizer is polyethylene glycol, and its molecular weight is 1500; Described lubricant is in paraffin; Described antioxidant is the compound of resistance phenol antioxidant and phosphite ester kind antioxidant; Described stabilizing agent is ESCALOL 567;
Again by the main spout of the above-mentioned material mixed by double screw extruder, the alkali-free glass fibre of the surface taken by weight ratio through silane coupler process is added from the side spout of double screw extruder, material is carried out melt blending, melt temperature controls at 290 DEG C, then undertaken cooling by the extruded stock of double screw extruder, air-dry, pelletizing, after drying the PET alloy material of pet layer.
The processing method of described aluminium foil comprises the steps:
Melting, casting: according to described in following aluminium foil composition and percentage by weight take raw material: Si:0.50%, Fe:0.9%, Cu:0.12%, Mn:0.50%, Mg:0.05%, Cr:0.02%, Zn:0.05%, Ti:0.02%, surplus are Al, the raw material taken is carried out melting at 730 DEG C, then carry out casting and obtain blank, the sotck thinkness after casting is 6.9mm;
Homogenizing annealing: above-mentioned blank is carried out homogenizing annealing process at 560 DEG C, isothermal holding is come out of the stove after 23 hours and is cooled to normal temperature;
Cold rolling: cooled blank is carried out cold rolling, then under 320 DEG C of conditions, carry out intermediate annealing, be incubated obtained aluminium foil after 28 hours.
The binding agent of described heat-sealing bonding oxidant layer obtains by the following method: make solvent with acetone, add chloroethylene-vinyl acetate-maleic acid terpolymer resin as main body adhesion substance, be stirred in the temperature range of 55-65 DEG C and dissolve completely, add copolymer and polyurethane, Merlon, the polyestercarbonate of ethylene glycol-dimethyltrimethylene glycol-terephthalate-last of the ten Heavenly stems diester again, mix and form.Wherein, binding agent is made up of each component of following weight percentage: acetone: 25%; Chloroethylene-vinyl acetate-maleic acid terpolymer resin: 18%; The copolymer of ethylene glycol-dimethyltrimethylene glycol-terephthalate-last of the ten Heavenly stems diester: 40%; Polyurethane: 7%; Merlon: 5%; Polyestercarbonate: 5%.
The shaping clad aluminum stiff sheet in the present invention torrid zone adopts compatibility reasonable, pet layer is made by the PET alloy material of glass fiber reinforcement, the rational aluminum foil material of compatibility is adopted to make aluminium foil layer, employing compatibility is rational, composite interpolation polyurethane, Merlon, heat-sealing bonding oxidant layer made by the binding agent of polyestercarbonate, which floor hyaline membrane is after compound, whole structure is still transparent, high barrier property is had to steam and oxygen, product structure is more symmetrical, can effectively improve the phenomenons such as the warpage that in use may occur, and effectively improve the service life of clad aluminum stiff sheet.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (10)
1. the shaping clad aluminum stiff sheet in the torrid zone, comprises the pet layer, aluminium foil layer and the heat-sealing bonding oxidant layer that set gradually, it is characterized in that, be provided with glue layer between described pet layer and aluminium foil layer, and the density of described glue layer glue is 4.8-5.0g/cm
3, the thickness of described pet layer is 25-35 μm, and the thickness of aluminium foil layer is 55-65 μm, and the gross thickness of the shaping clad aluminum stiff sheet in the described torrid zone is 97-98 μm.
2. the shaping clad aluminum stiff sheet in the torrid zone according to claim 1, it is characterized in that, the component of the PET alloy material of described pet layer by mass percent proportioning is: PBT:10-30%, PET:30-60%, glass fibre: 5-15%, plasticizer: 1-5%, lubricant: 1-3%, antioxidant: 0.5-1%, stabilizing agent: 0.1-2%.
3. the shaping clad aluminum stiff sheet in the torrid zone according to claim 2, is characterized in that, glass fibre described in PET alloy material is the alkali-free glass fibre of surface through silane coupler process.
4. the shaping clad aluminum stiff sheet in the torrid zone according to claim 2, is characterized in that, plasticizer described in PET alloy material is polyethylene glycol, and its molecular weight is 800-1500.
5. the shaping clad aluminum stiff sheet in the torrid zone according to claim 2, it is characterized in that, lubricant described in PET alloy material is one or more in polysiloxanes, calcium stearate, paraffin, described antioxidant is the compound of resistance phenol antioxidant and phosphite ester kind antioxidant, and described stabilizing agent is ESCALOL 567.
6. the shaping clad aluminum stiff sheet in the torrid zone according to claim 1 and 2, it is characterized in that, the PET alloy material of described pet layer obtains by the following method:
(1) by PET dry 3-4 hour, PBT dry 3-5 hour at 130 DEG C-140 DEG C at 130 DEG C-150 DEG C, fire retardant is dry 30-45 minute at 80 DEG C-85 DEG C, stand-by;
(2) take PBT and PET after dry process by weight ratio, after mixing, then add the plasticizer, lubricant, antioxidant and the stabilizing agent that take by weight ratio, then add together in high-speed mixer and fully mix 10-20 minute;
(3) material, step (2) mixed again is by the main spout of double screw extruder, the alkali-free glass fibre of the surface taken by weight ratio through silane coupler process is added from the side spout of double screw extruder, material is carried out melt blending, melt temperature controls at 270 DEG C-290 DEG C, then undertaken cooling by the extruded stock of double screw extruder, air-dry, pelletizing, after drying the PET alloy material of pet layer.
7. the shaping clad aluminum stiff sheet in the torrid zone according to claim 1, it is characterized in that, composition and the percentage by weight of described aluminium foil layer aluminum foil material are: Si:0.35-0.50%, Fe:0.9-1.20%, Cu:0.05-0.12%, Mn:0.50-0.60%, Mg:0.02-0.05%, Cr:0.02-0.05%, Zn:0.02-0.05%, Ti:0.02-0.05%, surplus are Al.
8. the shaping clad aluminum stiff sheet in the torrid zone according to claim 1 or 7, it is characterized in that, the processing method of described aluminium foil comprises the steps:
S 1, melting, casting: according to described in above-mentioned aluminium foil composition and percentage by weight take raw material, the raw material taken is carried out melting at 730-760 DEG C, then carries out casting and obtain blank, the sotck thinkness after casting is 7.2 ± 0.3mm;
S2, homogenizing annealing: above-mentioned blank is carried out homogenizing annealing process at 560-580 DEG C, come out of the stove after isothermal holding 18-23 hour and be cooled to normal temperature;
S3, cold rolling: cooled blank to be carried out cold rolling, then under 320-380 DEG C of condition, carries out intermediate annealing, be incubated obtained aluminium foil after 25-28 hour.
9. the shaping clad aluminum stiff sheet in the torrid zone according to claim 1, is characterized in that, the binding agent of described heat-sealing bonding oxidant layer is made up of each component of following weight percentage: acetone: 25-32%; Chloroethylene-vinyl acetate-maleic acid terpolymer resin: 18-25%; The copolymer of ethylene glycol-dimethyltrimethylene glycol-terephthalate-last of the ten Heavenly stems diester: 30-40%; Polyurethane: 5-10%; Merlon: 5-10%; Polyestercarbonate: 5-10%.
10. the shaping clad aluminum stiff sheet in the torrid zone according to claim 1 or 9, it is characterized in that, the binding agent of described heat-sealing bonding oxidant layer obtains by the following method: make solvent with acetone, add chloroethylene-vinyl acetate-maleic acid terpolymer resin as main body adhesion substance, be stirred in the temperature range of 55-65 DEG C and dissolve completely, add copolymer and polyurethane, Merlon, the polyestercarbonate of ethylene glycol-dimethyltrimethylene glycol-terephthalate-last of the ten Heavenly stems diester again, mix and form.
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| CN114074468A (en) * | 2020-08-20 | 2022-02-22 | 南亚塑胶工业股份有限公司 | Composite film material for medicine package |
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