CN104723626A - Iron plastic composite material for household appliance and preparation method for iron plastic composite material - Google Patents
Iron plastic composite material for household appliance and preparation method for iron plastic composite material Download PDFInfo
- Publication number
- CN104723626A CN104723626A CN201510081856.0A CN201510081856A CN104723626A CN 104723626 A CN104723626 A CN 104723626A CN 201510081856 A CN201510081856 A CN 201510081856A CN 104723626 A CN104723626 A CN 104723626A
- Authority
- CN
- China
- Prior art keywords
- layer
- composite
- iron
- coating
- accounts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention relates to an iron plastic composite material for a household appliance and a preparation method for the iron plastic composite material. The composite material structurally comprises a hardened wear-resisting layer, a BOPET (biax orientation polyester) film substrate layer, a chemical modifying layer, a printing layer, a UV (ultraviolet) structure wiredrawing layer, an aluminum-coating layer, a bottom coating, a modified PE (polyethylene) layer, a tackifying layer, a polyester layer and an iron plate substrate from top to bottom in sequence, wherein the layers are tightly combined with one another. Through surface hardening, printing, wiredrawing and aluminum-coating, the iron plastic composite material achieves a glaring appearance which is fine in imitated metal wiredrawing degree, high in hardness, practical and wear-resisting; the hardened layer formed by polycarbonate polyurethane and polyether polyurethane can reach hardness higher than 3H; meanwhile, relatively good flexibility is kept so as to facilitate processing performances of a film and a relatively large space is provided for selecting film substrate thickness; moreover, the iron plastic composite material is thermally pressed and adhered by hot-melt type modified resin and an iron plate. The preparation method is environmentally friendly, simple to operate, and cost-saving.
Description
Technical field
The present invention relates to a kind of iron plastic composite materials, be related specifically to the iron plastic composite materials that a kind of home appliance surface uses.
Background technology
Household electrical appliances are not only the machine that metal-back by a quilt cover, it especially we life, family, the part even remembered.We lie in the change that household electrical appliances bring quality of life, the impact of living on us and remembering under more lying in its mode of appearance.Sometimes, we are even ready the finishing layout that changes in own home in order to oneself favorite metal wire-drawing texture double-door refrigerator a.Majority in the heart, the colourful outward appearance of household electrical appliances has become the materialization of oneself unique personality and grade to show.Producer is a lot of for the publicity of household electrical appliances functions in the market, but does not in fact have what too large difference, now the choice criteria of household electrical appliances is mainly concentrated on to the outward appearance of household of whether can arranging in pairs or groups better.The appearance of the artistry white domestic appliances product such as LG " Sheng Tangwen ", beautiful " Chinese feature ", meets the potential demand of consumer to overall household electrical appliances creating policy household, will lead the development of artistic household electrical appliances.
The life idea that people pursue high-quality penetrates into household electric appliances, and the household appliance appearance that black was rough in the past, white is dull can not meet the demand of people, and precoated steel sheet household electrical appliances that are beautiful in colour, practical function arise at the historic moment.Household electrical appliances precoated steel sheet is that the organic polymer film after printing, gold-plated, wire drawing, radium-shine, sclerosis is covered on steel surface, and it has the advantages such as specious, beautiful in colour, intensity is high, corrosion resistance good, machine-shaping is convenient.
But the tack coat that existing overlay film iron plate adopts mostly is solvent-based thermal activated form adhesive, comprise PVC glue, the polyurethane of one-component, the polyurethane etc. of two component, need to add solvent diluent, curing agent, colouring agent etc. in adhesion process, then through high-temperature baking, a large amount of pernicious gases is produced.And through the iron plate of this mode overlay film, very low at initial bonding strength, need 50 degree of constant temperature to be cured, consume the energy in a large number.Except secondary, because adhesive is liquid, coating process is easy to produce bubble, and has the feature of environmental protection that dissolvent residual affects household electrical appliances in the composite.
In addition, the rete of existing overlay film iron plate is very simple, and the hardness of rete is lower, can not meet the demand of present household appliances to appearance material.Based on above-mentioned defect, the invention provides a kind of hardness high, imitative metal wire-drawing degree is meticulous, without the need to bonding, only needs the household electrical appliances iron plastic composite materials that hot pressing just can be shaping.
Summary of the invention
For solving the problem, the present invention proposes a kind of household electrical appliances iron plastic composite materials and preparation method thereof.
Described iron plastic composite materials through Surface hardened layer, printing, wire drawing, aluminize, formed dazzling gorgeous, imitative metal wire-drawing degree is meticulous, hardness is high, practical wear-resisting outward appearance, and fit merely through hot melt modified resin and iron plate hot pressing, preparation method's environmental protection, simple to operate, saving cost.
Household electrical appliances involved in the present invention are with being hot pressed into sections plastic composite materials, and this composite structure is followed successively by from top to bottom: hardened wear-resistant layer, BOPET film substrate layer, chemically modified layer, printed layers, UV structure wire drawing layer, aluminium coated, priming coat, modified PE layer, adhesion promoting layer, polyester layer, iron plate base material; Described each layer is combined closely mutually.
Wherein, hardened wear-resistant layer, for improving the case hardness of iron plastic composite materials, prevents surface scratch; Chemically modified layer mainly for the protection of printing ink layer, UV structure wire drawing layer the Main Function that rises present metal wire-drawing structure exactly, present metal-like together with aluminium coated; The combination of modified PE layer, adhesion promoting layer, polyester layer makes iron plastic composite materials of the present invention only need hot pressing just can combine closely on the surface of iron plate base material, and without the need to relying on binding material.
Wherein, described BOPET film is transparent biaxial tension pet film, and thickness is generally 25 ~ 30 microns, is prefabricated base material.
Wherein, described hardened wear-resistant layer is polycarbonate-based polyurethane, polyether polyurethane, poly-carbodiimide cross-linking agent, acrylate levelling agent, polyether silicone class wetting agent, water mix emulsion and makes, mentioned component be combined in other field, as in ground pavement etc. through being commonly used to obtain hardened wear-resistant layer, the present invention can use for reference prior art arrangement raw material used, but consider that base material of the present invention is film, therefore by above-mentioned raw material, obtain through sided corona treatment, high temperature (130-150 DEG C) drying after adopting the full width coating of intaglio plate.
Specifically, described hardened wear-resistant layer is mixed in proportion polycarbonate-based for 10-30% polyurethane, 10-30% polyether polyurethane, turn speed stirring 1-10min (being preferably 5min) of (being preferably 300 turns) with 200-500 in agitator, acrylate levelling agent, polyether silicone class wetting agent is added after adding water dilution, continue to stir 1-10min (being preferably 3min), finally add poly-carbodiimide cross-linking agent.Above-mentioned emulsion is imported the full width coating machine glue groove of intaglio plate, opening front corona machine intensity settings is 2-8KVA (being preferably 5.5KVA), Speed Setting 20-40m/min (being preferably 30m/min), baking oven adopts steam drying temperature to be 100-150 DEG C (being preferably 120 DEG C), forms hardened wear-resistant layer;
Described chemically modified layer is two kinds of acrylic acid copolymer layers;
Specifically, described chemically modified layer selects Tg to be that 50 ~ 70 DEG C and 10 ~-20 DEG C of two kinds of acrylic emulsions mix with ethanol, water, wherein, the weight ratio that high Tg acrylic emulsion (Tg is 50 ~ 70 DEG C) accounts for total system is 0.8% ~ 1.8%, low Tg acrylic emulsion (Tg is 10 ~-20 DEG C) accounts for 0.3% ~ 1.0%, and ethanol accounts for 25%% ~ 34%; All the other are water; Then mixed liquor is coated the lower surface of BOPET base material, coating grammes per square metre is 0.01 ~ 0.1g/m
2make.
The ink of described printed layers adopts the high temperature resistant dye ink of dual-component polyurethane class; Described bi-component refers to: component A comprises polyalcohol, diamine or monoamine or polyamine, C2-10 diol chain-extension agent, inorganic filler, additive, crosslinking catalyst; B component comprises NCO-blocked polyurethane performed polymer that molecular weight is 840-2100, NCO degree of functionality 2-4, inorganic filler, additive.This is conventional high temperature resistant dyestuff, and the thickness of described printed layers is at 0.5 ~ 1 micron.
In addition, the main component of described UV structure wire drawing layer is UV resin bed; The thickness of described UV structure wire drawing layer is generally 10 ~ 18 microns, and UV resin is a kind of resin that association area is commonly used, and is generally by epoxy acrylic ester prepolymer, aliphatic urethane acrylate prepolymer, monomer, initator, levelling agent, solvent composition.Specifically, in UV structure wire drawing layer of the present invention, epoxy acrylate is the epoxy diacrylate of 2 officials' energy, and the weight ratio accounting for total system is 5% ~ 10%; Aliphatic urethane acrylate prepolymer is 4 functional aliphatic's urethane diacrylates, accounts for 20% ~ 30% of total system; Monomer is that simple function mixes with multifunctional, the methoxy poly (ethylene glycol) monomethacrylates of such as 5% ~ 8%, coordinates 7% ~ 12% trimethylolpropane triacrylate; Initator is 2,4,6-trimethyl benzoyl diphenyl base phosphine oxide or 2-methyl isophthalic acid-(4-methyl mercapto) phenyl-2-morpholinyl propyl-1-ketone or 1-hydroxyl-cyclohexyl-phenyl ketone, wherein one or more combinations, account for total system 0.2% ~ 2.5%; Levelling agent is polyether silicones class, accounts for gross weight 0.1% ~ 0.5%; Solvent is ethanol, ethyl acetate, butyl acetate mixture.
Its threaded configuration be by oven drying after coating UV resin, ultra violet lamp is semi-harden, roller extrusion structure is shaping, ultra violet lamp hardening process realizes;
Described aluminium coated is aluminium atomic deposition layer;
Described aluminium coated is in high vacuum conditions, makes metallic aluminium fusion and gasification with the heating of resistance, high frequency or electron beam, after the absorption of threaded configuration layer, form aluminium lamination, and light refraction, reflection angle can be made different, and form wire drawing metal-like, general thickness exists
Described priming coat is EAA layer (ethylene-acrylic acid copolymer layer);
Described priming coat is that wherein solids content accounts for 0.04% ~ 0.5% by the EAA aqueous solution, coating dry weight 0.002 ~ 0.008g/m
2, baking temperature is 90 DEG C;
Described modified PE layer is acrylic graft-modified polyvinyl resin, and wherein acrylic acid content is 8% ~ 12%, and entirety is long chain type macromolecule.The softening point of described modified PE more than 100 DEG C, MI=4.5 ~ 15g/10min (190 DEG C), general thickness is set to 15 ~ 30 microns;
Described adhesion promoting layer mainly thermoplastic urethane layers, this polyurethane resin can be closely adhered to iron substrate surface when hot pressing; Described adhesion promoting layer mixes primarily of thermal activation type polyurethane dispersion, adhesion promoter, ethanol, water, and wherein thermal activation type polyurethane dispersion accounts for 5% ~ 35% of total system; Adhesion promoter is hydroxyl macromolecular material, and molecular weight is 1000 ~ 10000, and quality accounting is 1% ~ 10%; Ethanol is cosolvent, and service property (quality) is 5% ~ 20% of gross weight; General coating dry weight is 0.3 ~ 2.0g/m
2.
Preferably, the thickness of described BOPET film is 25 ~ 30 microns.
Preferably, two kinds of acrylic emulsions that described chemically modified layer is selected are respectively 8%Tg=65 DEG C, 0.5%Tg=-10 DEG C.
The colors such as transparent yellow, transparent red, transparent green selected by described printed layers ink.
The iron plate base material that the present invention adopts is the one in zinc-plated, zinc-plated, chromium plating, plain sheet, and the prefabricated white polyester layer on surface, the gross thickness of general iron plate and polyester layer is at 0.25 ~ 0.8mm.Described polyester layer is the conventional polyester of this area in advance on iron plate, and its Main Function is as follows: 1. the antirust function strengthening iron plate; 2. increase color bottom, hide the flaw of steel plate, the unification of color is kept after making overlay film, general employing main component is the polyester liquid mixture of active polyester resin, pigment, curing agent, adopt intaglio plate rolling method, polyester liquid is coated coil of strip, and then drying and moulding obtains, and on iron plate surface, preformed polyester layer is the technology that this area is commonly used.
Especially, the present invention also provides the preparation method of above-mentioned iron plastic composite materials.
Preparation method of the present invention, comprises the following steps:
1) by transparent BOPET film biaxial tension, to obtain thickness be 25 ~ 30 microns is pre-obtained BOPET substrate layer;
2) polycarbonate-based polyurethane, polyether polyurethane, poly-carbodiimide cross-linking agent, acrylate levelling agent, polyether silicone class wetting agent, water are mixed emulsion, the full width coating of intaglio plate is adopted at the upper surface of BOPET substrate layer, then high temperature drying, thickness is 5 ~ 8 microns, obtains hardened wear-resistant layer;
3) acrylic acid solution is configured to chemical modification liquid, add the first glue groove of intaglio press to, opening front corona machine intensity settings is 2-10KVA (preferred 5.0KVA), Speed Setting 50-150m/min (preferred 120m/min), baking oven adopts steam drying temperature to be 100 DEG C, and the PET face adopting smooth roll to coat above-mentioned base material forms chemically modified layer; All adopt gravure printing roller after intaglio press, glue groove forms printed layers on modified layer surface, obtains laminated film after using two component high temperature ink printing;
4) by epoxy acrylic ester prepolymer 5-10%, aliphatic urethane acrylate prepolymer 5-10%, monomer 15-25%, initator 0.5-2%, levelling agent 0.05-0.5%, all the other be solvent mixing, add in UV forming machine glue groove, above-mentioned composite membrane is adopted intaglio plate gluing mode, through oven drying, be carved with the steel rider extruding of wire drawing lines through one after first order UV solidification, finally enter second level UV curing molding and form UV structure wire drawing layer, composite membrane after rolling is sent into vacuum aluminum-plating machine aluminize, form aluminium coated;
5) above-mentioned laminated film is sent into curtain coating equipment complex, adopt smooth roll coating silane coupling agent in the face of aluminizing; Deliver to compound position after drying, extruder absorbing propenoic acid graft modification PE particle enters cavity, extrusion coated in priming coat through die head 260 DEG C of heating and melting, die head is equipped with 3 ~ 10 layers of screen pack, aperture is 30 ~ 100 orders, by chill roll and the compression roller of 20 ~ 30 DEG C, form modified PE layer, its extruded velocity is 30 ~ 200MPM; After corona, use smooth roll mode adhesion promoting layer material to be coated PE face form adhesion promoting layer, for subsequent use after rolling;
6) iron plate of prefabricated polyester layer is carried out compound by hot pressing equipment for coating film and above-mentioned plural layers, its crucial compound position adopts three pre-hot iron plates of steel rider, mode of heating adopts conduction oil circulating-heating, composite plastic film and steel plate are sent in the middle of the composite roll of about two adjustable pressures simultaneously, after pressing, chilling, forms iron plastic composite materials.
Step 2) carry out as follows: polycarbonate-based for 10-30% polyurethane, 10-30% polyether polyurethane are mixed in proportion, turn speed stirring 1-10min (being preferably 5min) of (being preferably 300 turns) with 200-500 in agitator, levelling agent, substrate wetting agents is added after adding water dilution, continue to stir 1-10min (being preferably 3min), finally add poly-carbodiimide cross-linking agent.Above-mentioned emulsion is imported the full width coating machine glue groove of intaglio plate, opening front corona machine intensity settings is 2-8KVA (being preferably 5.5KVA), Speed Setting 20-40m/min (being preferably 30m/min), baking oven adopts steam drying temperature to be 100-150 DEG C (being preferably 120 DEG C), forms hardened layer;
Step 3) in, described chemical modification liquid selects Tg to be that 50 ~ 70 DEG C and 10 ~-20 DEG C of two kinds of acrylic emulsions mix with ethanol, water, and then coat the lower surface of BOPET base material, coating grammes per square metre is 0.01 ~ 0.1g/m
2, form chemically modified layer;
Especially, the weight ratio that high Tg acrylic emulsion (Tg is 50 ~ 70 DEG C) accounts for total system is 0.8% ~ 1.8%, and low Tg acrylic emulsion (Tg is 10 ~-20 DEG C) accounts for 0.3% ~ 1.0%, and ethanol accounts for 25%% ~ 34%;
Step 3) collocation method of described chemical modification liquid is: by the acrylic emulsion mix and blend of height two kinds of Tg, first add alcohol solvent, adding rate is approximately 20g/s, add while stirring, stir speed (S.S.) is 300 turns, and treat that ethanol adds water after adding, condition is as aforementioned.
Printed layers ink is the high temperature resistant dye ink of dual-component polyurethane class, and select the colors such as transparent yellow, transparent red, transparent green, thickness is generally at 0.5 ~ 1 micron;
Step 4) in, described priming coat uses the EAA aqueous solution, wherein solid containing accounting for 0.04% ~ 0.5%, coating dry weight 0.002 ~ 0.008g/m
2, baking temperature is 90 DEG C; Described modified PE is acrylic graft-modified polyvinyl resin, and wherein acrylic acid content is 8% ~ 12%, and entirety is long chain type macromolecule.The softening point of described modified PE more than 100 DEG C, MI=4.5 ~ 15g/10min (190 DEG C), general thickness is set to 15 ~ 30 microns;
Described adhesion promoting layer is mixed by thermal activation type polyurethane dispersion, adhesion promoter, ethanol, water, and wherein thermal activation type polyurethane dispersion accounts for 5% ~ 35% of total system; Adhesion promoter is hydroxyl macromolecular material, and molecular weight is 1000 ~ 10000, and accounting is 1% ~ 10%; Ethanol is cosolvent, and use amount is 5% ~ 20%; General coating dry weight is 0.3 ~ 2.0g/m
2.
Step 5) in, described composite roll is configured with electromagnetic constant-temperature system, ensures that the temperature of iron plate can not change because of the speed of speed.The temperature adopted is 220-250 DEG C.
The remarkable result of the present invention and prior art household electrical appliances composite is:
The hardened layer that polycarbonate-based polyurethane and polyether polyurethane are formed can reach the hardness of more than 3H, keeps good pliability to be beneficial to the processing characteristics of film simultaneously, selects to provide larger space to film substrate thickness.
UV structure wire drawing layer adopts the compacting of optical grade roller, and its imitative metal wire-drawing degree is far away higher than mechanical wire drawing, and its measure of precision almost cannot be distinguished by naked eyes, and fine degree is high.
Adopt modified PE resin, use melting hot-pressing technique overlay film, plural layers and iron plate are made iron plastic composite materials, avoid using solvent glue, Environmental Safety, improves yield rate, owing to needing the slaking of 48-72 hour unlike glue, therefore production efficiency also improves a lot, cover film and just can use immediately.Also save a part of labour cost and energy consumption simultaneously, adopt special adhesion promoting layer material that both attachment fastness are strengthened greatly.
Accompanying drawing explanation
Fig. 1 is according to embodiment of the present invention household electrical appliances iron plastic composite materials structural representation, 1 hardened wear-resistant layer, 2BOPET thin film based sheet material layers, 3 chemically modified layer, 4 printed layers, 5UV structure wire drawing layer, 6 aluminium coateds, 7 priming coats, 8 modified PE layers, 9 adhesion promoting layers, 10 polyester layers, 11 iron plate base materials in figure.
Fig. 2 is according to the embodiment of the present invention crucial compound position schematic diagram.
Detailed description of the invention
Below by embodiment, further illustrate the present invention, be intended to for explaining the present invention, and be not used to limit the scope of the invention.As do not particularly not pointed out, the method that the present embodiment adopts is the method that this area is commonly used, and the equipment of employing is the equipment that this area is commonly used.
As do not specialized, the various reagent that the present embodiment adopts are various reagent that this area is commonly used.
Embodiment 1
The long transparent pet film of obtained 25 microns of wide 6000m of 1400mm in advance.
20% polycarbonate-based polyurethane, 15% polyether polyurethane are mixed in proportion, 5min is stirred with the speed of 300 turns in agitator, add 0.1% levelling agent, 0.5% substrate wetting agents after adding water dilution, continue to stir 3min, finally add 7% poly-carbodiimide cross-linking agent.Above-mentioned emulsion is imported the full width coating machine glue groove of intaglio plate, opening front corona machine intensity settings is 5.5KVA, Speed Setting 30m/min, and baking oven adopts steam drying temperature to be 120 DEG C, forms thin hardened layer 6 microns.
By 0.8%Tg=65 DEG C, two kinds of acrylic emulsion mix and blends of 0.5%Tg=-10 DEG C, first add 30% alcohol solvent, adding rate is approximately 20g/s and needs to add while stirring, and stir speed (S.S.) is 300 turns, treat that ethanol adds water after adding, condition is as aforementioned.The chemical modification liquid configured is added to the first glue groove of intaglio press, opening front corona machine intensity settings is 5.0KVA, Speed Setting 120m/min, baking oven adopts steam drying temperature to be 100 DEG C, and the PET face adopting bachelor to coat above-mentioned base material forms chemically modified layer.All adopt gravure printing roller after intaglio press, glue groove uses two component temperature resistant transparent yellow ink printing, forms printed layers.
By 2 functional epoxy's diacrylate prepolymer of 7%, 4 functional aliphatic's urethane diacrylate prepolymers of 25%, the methoxy poly (ethylene glycol) monomethacrylates of 5%, coordinate the trimethylolpropane triacrylate monomer of 7%, 0.5% 2, 4, 6-trimethyl benzoyl diphenyl base phosphine oxide initiator, the polyether silicones class stream of 0.2%, and ethanol, ethyl acetate, butyl acetate is by proper ratio mixing, add UV forming machine glue groove to, above-mentioned composite membrane is adopted intaglio plate gluing mode, through oven drying, be carved with the steel rider extruding of wire drawing lines through one after first order UV solidification, finally enter second level UV curing molding and form UV structure wire drawing layer, composite membrane after rolling is sent into vacuum aluminum-plating machine aluminize, aluminium lamination is formed after the absorption of threaded configuration layer, light refraction can be made, reflection angle is different, form wire drawing metal-like, general thickness exists
Above-mentioned laminated film is sent into curtain coating equipment complex, smooth roll is adopted to be coated with the EAA aqueous solution, wherein solid containing accounting for 0.04% ~ 0.5%, coating dry weight 0.002 ~ 0.008g/m2, baking temperature is deliver to compound position after 90 DEG C, extruder absorbs PE particle and enters cavity, extrusion coated in priming coat through die head 260 DEG C of heating and melting, modified PE is acrylic graft-modified polyvinyl resin, wherein acrylic acid content is 8%, and entirety is long chain type macromolecule, and its softening point is 108 DEG C, MI=4.5g/10min (190 DEG C), thickness is set to 20 microns.The thermal activation type polyurethane dispersion of 10%, the hydroxyl macromolecular material of 1%, ethanol, the water of 15% are mixed to use smooth roll mode to coat PE face as thickening material for subsequent use after rolling.
As shown in Figure 2, be that the iron plate of the prefabricated white polyester layer of 0.3mm carries out compound by hot pressing equipment for coating film and above-mentioned plural layers by thickness, its crucial compound position adopts three pre-hot iron plates of steel rider, mode of heating adopts conduction oil circulating-heating, composite plastic film and steel plate are sent in the middle of the composite roll of about two adjustable pressures simultaneously, after pressing, chilling, forms iron plastic composite materials.
Embodiment 2
The long transparent pet film of obtained 25 microns of wide 6000m of 1400mm in advance.
20% polycarbonate-based polyurethane, 15% polyether polyurethane are mixed in proportion, 5min is stirred with the speed of 300 turns in agitator, add 0.1% levelling agent, 0.5% substrate wetting agents after adding water dilution, continue to stir 3min, finally add 7% poly-carbodiimide cross-linking agent.Above-mentioned emulsion is imported the full width coating machine glue groove of intaglio plate, opening front corona machine intensity settings is 5.5KVA, Speed Setting 30m/min, and baking oven adopts steam drying temperature to be 120 DEG C, forms thin hardened layer 6 microns.
By 1.5%Tg=74 DEG C, the acrylic emulsion mix and blend of 0.4%Tg=-15 DEG C, first add 24% alcohol solvent, adding rate is approximately 20g/s and needs to add while stirring, and stir speed (S.S.) is 300 turns, treat that ethanol adds water after adding, condition is as aforementioned.The chemical modification liquid configured is added to the first glue groove of intaglio press, opening front corona machine intensity settings is 5.0KVA, Speed Setting 120m/min, baking oven adopts steam drying temperature to be 100 DEG C, and the PET face adopting bachelor to coat above-mentioned base material forms chemically modified layer.All adopt gravure printing roller after intaglio press, glue groove uses two component temperature resistant transparent chilli oil ink print, forms printed layers.
By 2 functional epoxy's diacrylate prepolymer of 7%, 4 functional aliphatic's urethane diacrylate prepolymers of 25%, the methoxy poly (ethylene glycol) monomethacrylates of 5%, coordinate the trimethylolpropane triacrylate monomer of 7%, 0.5% 2, 4, 6-trimethyl benzoyl diphenyl base phosphine oxide initiator, the polyether silicones class stream of 0.2%, and ethanol, ethyl acetate, butyl acetate is by proper ratio mixing, add UV forming machine glue groove to, above-mentioned composite membrane is adopted intaglio plate gluing mode, through oven drying, be carved with the steel rider extruding of wire drawing lines through one after first order UV solidification, finally enter second level UV curing molding and form UV structure wire drawing layer, composite membrane after rolling is sent into vacuum aluminum-plating machine aluminize, aluminium lamination is formed after the absorption of threaded configuration layer, light refraction can be made, reflection angle is different, form wire drawing metal-like, thickness exists
Above-mentioned laminated film is sent into curtain coating equipment complex, smooth roll is adopted to be coated with the EAA aqueous solution, wherein solid containing accounting for 0.04% ~ 0.5%, coating dry weight 0.002 ~ 0.008g/m2, baking temperature is deliver to compound position after 90 DEG C, extruder absorbs PE particle and enters cavity, extrusion coated in priming coat through die head 260 DEG C of heating and melting, modified PE is acrylic graft-modified polyvinyl resin, wherein acrylic acid content is 8%, and entirety is long chain type macromolecule, and its softening point is 108 DEG C, MI=4.5g/10min (190 DEG C), thickness is set to 20 microns.The thermal activation type polyurethane dispersion of 10%, the hydroxyl macromolecular material of 1%, ethanol, the water of 15% are mixed to use smooth roll mode to coat PE face as thickening material for subsequent use after rolling.
As shown in Figure 2, be that the iron plate of the prefabricated white polyester layer of 0.3mm carries out compound by hot pressing equipment for coating film and above-mentioned plural layers by thickness, its crucial compound position adopts three pre-hot iron plates of steel rider, mode of heating adopts conduction oil circulating-heating, composite plastic film and steel plate are sent in the middle of the composite roll of about two adjustable pressures simultaneously, after pressing, chilling, forms iron plastic composite materials.
The hardened layer that the polycarbonate-based polyurethane of the present invention and polyether polyurethane are formed can reach the hardness of more than 3H, keeps good pliability to be beneficial to the processing characteristics of film simultaneously, selects to provide larger space to film substrate thickness.
UV structure wire drawing layer adopts the compacting of optical grade roller, and its imitative metal wire-drawing degree is far away higher than mechanical wire drawing, and its measure of precision almost cannot be distinguished by naked eyes, and fine degree is high.
Adopt modified PE resin, use melting hot-pressing technique overlay film, plural layers and iron plate are made iron plastic composite materials, avoid using solvent glue, Environmental Safety, improves yield rate, owing to needing the slaking of 48-72 hour unlike glue, therefore production efficiency also improves a lot, cover film and just can use immediately.Also save a part of labour cost and energy consumption simultaneously, adopt special adhesion promoting layer material that both attachment fastness are strengthened greatly.
Claims (10)
1. a household electrical appliances iron plastic composite materials, it is characterized in that, described composite structure is followed successively by from top to bottom: hardened wear-resistant layer, BOPET film substrate layer, chemically modified layer, printed layers, UV structure wire drawing layer, aluminium coated, priming coat, modified PE layer, adhesion promoting layer, polyester layer and iron plate base material; Described each layer is combined closely mutually.
2. composite as claimed in claim 1, it is characterized in that, described BOPET film is transparent biaxial tension pet film, and thickness is 25 ~ 30 microns; Described hardened artiwear layer thickness is 5 ~ 8 microns.
3. composite as claimed in claim 1, it is characterized in that, described chemically modified layer is prepared as follows: select Tg to be that 50 ~ 70 DEG C and 10 ~-20 DEG C of two kinds of acrylic emulsions mix with ethanol, water, wherein, Tg is the weight ratio that the acrylic emulsion of 50 ~ 70 DEG C accounts for total system is 0.8% ~ 1.8%, Tg is that the acrylic emulsion of 10 ~-20 DEG C accounts for 0.3% ~ 1.0%, and ethanol accounts for 25%% ~ 34%; All the other are water; Then mixed liquor is coated the lower surface of BOPET base material, coating grammes per square metre is 0.01 ~ 0.1g/m
2make.
4. composite as claimed in claim 1, it is characterized in that, described UV structure wire drawing layer is prepared as follows: by epoxy acrylic ester prepolymer, aliphatic urethane acrylate prepolymer, monomer, initator, levelling agent, solvent mixing, by oven drying after coating UV resin, ultra violet lamp is semi-harden, roller extrusion structure is shaping, ultra violet lamp hardening process realizes; The thickness of described UV structure wire drawing layer is 10 ~ 18 microns.
5. composite as claimed in claim 1, it is characterized in that, described aluminium coated is aluminium atomic deposition layer; Described aluminium coated is in high vacuum conditions, makes metallic aluminium fusion and gasification with the heating of resistance, high frequency or electron beam, after the absorption of threaded configuration layer, form aluminium lamination, and light refraction, reflection angle can be made different, and form wire drawing metal-like, thickness is
6. composite as claimed in claim 1, it is characterized in that, the thickness of described modified PE layer is 15 ~ 30 microns; Described iron plate base material is the one in zinc-plated, zinc-plated, chromium plating, plain sheet, and the prefabricated white polyester layer on surface, thickness is 0.25 ~ 0.8mm.
7. the preparation method of the composite as described in as arbitrary in claim 1-6, is characterized in that, comprise the following steps:
1) by transparent BOPET film biaxial tension, to obtain thickness be 25 ~ 30 microns is pre-obtained BOPET substrate layer;
2) polycarbonate-based polyurethane, polyether polyurethane, poly-carbodiimide cross-linking agent, acrylate levelling agent, polyether silicone class wetting agent, water are mixed emulsion, the full width coating of intaglio plate is adopted at the upper surface of BOPET substrate layer, then high temperature drying, thickness is 5 ~ 8 microns, obtains hardened wear-resistant layer;
3) acrylic acid solution is configured to chemical modification liquid, add the first glue groove of intaglio press to, opening front corona machine intensity settings is 2-10KVA, Speed Setting 50-150m/min, baking oven adopts steam drying temperature to be 100 DEG C, and the PET face adopting smooth roll to coat above-mentioned base material forms chemically modified layer; All adopt gravure printing roller after intaglio press, glue groove forms printed layers on modified layer surface, obtains laminated film after using two component high temperature ink printing;
4) by epoxy acrylic ester prepolymer 5-10%, aliphatic urethane acrylate prepolymer 5-10%, monomer 15-25%, initator 0.5-2%, levelling agent 0.05-0.5%, all the other be solvent mixing, add in UV forming machine glue groove, above-mentioned composite membrane is adopted intaglio plate gluing mode, through oven drying, be carved with the steel rider extruding of wire drawing lines through one after first order UV solidification, finally enter second level UV curing molding and form UV structure wire drawing layer, composite membrane after rolling is sent into vacuum aluminum-plating machine aluminize, form aluminium coated;
5) above-mentioned laminated film is sent into curtain coating equipment complex, adopt smooth roll coating silane coupling agent in the face of aluminizing; Deliver to compound position after drying, extruder absorbing propenoic acid graft modification PE particle enters cavity, extrusion coated in priming coat through die head 260 DEG C of heating and melting, die head is equipped with 3 ~ 10 layers of screen pack, aperture is 30 ~ 100 orders, by chill roll and the compression roller of 20 ~ 30 DEG C, form modified PE layer, its extruded velocity is 30 ~ 200MPM; After corona, use smooth roll mode adhesion promoting layer material to be coated PE face form adhesion promoting layer, for subsequent use after rolling;
6) iron plate of prefabricated polyester layer is carried out compound by hot pressing equipment for coating film and above-mentioned plural layers, its crucial compound position adopts three pre-hot iron plates of steel rider, mode of heating adopts conduction oil circulating-heating, composite plastic film and steel plate are sent in the middle of the composite roll of about two adjustable pressures simultaneously, after pressing, chilling, forms iron plastic composite materials.
8. preparation method as claimed in claim 7, it is characterized in that, step 2) carry out as follows: by polycarbonate-based polyurethane, polyether polyurethane mixing, the speed turned with 200-500 in agitator stirs 1-10min, acrylate levelling agent, polyether silicone class wetting agent is added after adding water dilution, continue to stir 1-10min, last addition polymerization carbodiimide cross-linking agent, ratio is the weight ratio that polycarbonate-based polyurethane accounts for total system is 10-30%; The weight ratio that polyether polyurethane accounts for total system is 10-30%; Poly-carbodiimide cross-linking agent accounts for 5% ~ 10%; Levelling agent, substrate wetting agents respectively account for 0.1% ~ 1%, and all the other are water;
Above-mentioned emulsion is imported the full width coating machine glue groove of intaglio plate, opening front corona machine intensity settings is 2-8KVA, Speed Setting 20-40m/min, and baking oven adopts steam drying temperature to be 100-150 DEG C, forms hardened wear-resistant layer.
9. the preparation method of composite as claimed in claim 7, it is characterized in that, step 3) in, described chemical modification liquid selects Tg to be that 50 ~ 70 DEG C and 10 ~-20 DEG C of two kinds of acrylic emulsions mix with ethanol, water, then coat the lower surface of BOPET base material, coating grammes per square metre is 0.01 ~ 0.1g/m
2, form chemically modified layer; Wherein, the weight ratio that high Tg acrylic emulsion (Tg is 50 ~ 70 DEG C) accounts for total system is 0.8% ~ 1.8%, and low Tg acrylic emulsion (Tg is 10 ~-20 DEG C) accounts for 0.3% ~ 1.0%, and ethanol accounts for 25%% ~ 34%; Step 3) collocation method of described chemical modification liquid is: by the acrylic emulsion mix and blend of height two kinds of Tg, first add alcohol solvent, adding rate is approximately 20g/s, adds while stirring, and stir speed (S.S.) is 300 turns, treats that ethanol adds water after adding.
10. the preparation method of composite as claimed in claim 7, is characterized in that, step 5) in, described composite roll is configured with electromagnetic constant-temperature system, and ensure that the temperature of iron plate can not change because of the speed of speed, the temperature of employing is 220-250 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510081856.0A CN104723626B (en) | 2015-02-15 | 2015-02-15 | A kind of household electrical appliances iron plastic composite materials and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510081856.0A CN104723626B (en) | 2015-02-15 | 2015-02-15 | A kind of household electrical appliances iron plastic composite materials and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104723626A true CN104723626A (en) | 2015-06-24 |
| CN104723626B CN104723626B (en) | 2017-05-31 |
Family
ID=53448314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510081856.0A Active CN104723626B (en) | 2015-02-15 | 2015-02-15 | A kind of household electrical appliances iron plastic composite materials and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104723626B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108372696A (en) * | 2016-10-31 | 2018-08-07 | 上海纳尔数码喷印材料股份有限公司 | Super body sticker |
| CN112606502A (en) * | 2020-12-23 | 2021-04-06 | 上海品诚控股集团有限公司 | Scratch-resistant polycarbonate solid plate and preparation method thereof |
| CN115246244A (en) * | 2022-06-21 | 2022-10-28 | 东莞市悠悠美居家居制造有限公司 | Novel aluminum-washing counter-pressing fine drilling table mat preparation process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001049486A1 (en) * | 1999-12-30 | 2001-07-12 | Mitsubishi Chemical America, Inc. | Method of transfer melt printing of metal substrates, and the decorative surface coated items prepared thereby |
| CN101063010A (en) * | 2006-04-28 | 2007-10-31 | 佛山市顺德区汉达精密电子科技有限公司 | Low-yellowing UV varnish |
| CN203844354U (en) * | 2014-01-20 | 2014-09-24 | 北京康得新功能材料有限公司 | Hot-pressing fusion type iron covering film |
| CN203974170U (en) * | 2014-06-12 | 2014-12-03 | 乐金华奥斯(天津)有限公司 | Decorative metal film |
-
2015
- 2015-02-15 CN CN201510081856.0A patent/CN104723626B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001049486A1 (en) * | 1999-12-30 | 2001-07-12 | Mitsubishi Chemical America, Inc. | Method of transfer melt printing of metal substrates, and the decorative surface coated items prepared thereby |
| CN101063010A (en) * | 2006-04-28 | 2007-10-31 | 佛山市顺德区汉达精密电子科技有限公司 | Low-yellowing UV varnish |
| CN203844354U (en) * | 2014-01-20 | 2014-09-24 | 北京康得新功能材料有限公司 | Hot-pressing fusion type iron covering film |
| CN203974170U (en) * | 2014-06-12 | 2014-12-03 | 乐金华奥斯(天津)有限公司 | Decorative metal film |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108372696A (en) * | 2016-10-31 | 2018-08-07 | 上海纳尔数码喷印材料股份有限公司 | Super body sticker |
| CN112606502A (en) * | 2020-12-23 | 2021-04-06 | 上海品诚控股集团有限公司 | Scratch-resistant polycarbonate solid plate and preparation method thereof |
| CN115246244A (en) * | 2022-06-21 | 2022-10-28 | 东莞市悠悠美居家居制造有限公司 | Novel aluminum-washing counter-pressing fine drilling table mat preparation process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104723626B (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6288505B2 (en) | Painted decorative board | |
| CN101531860B (en) | Low-temperature curing color coiled material paint and method for preparing same | |
| CN101456965A (en) | Method for preparing dry-type water-soluble colorful rock slices | |
| CN104723626A (en) | Iron plastic composite material for household appliance and preparation method for iron plastic composite material | |
| CN101016434A (en) | Ultraviolet light ultra-low-temperature solidity powder coating | |
| CN104589746B (en) | A kind of decoration composite sheet structures and preparation method thereof | |
| CN101119854A (en) | Laminate for laser marking | |
| CN101781858A (en) | Dry veneering process of high weather-resistant fluorescent polyamide synthetic leather | |
| CN104136135A (en) | Method for forming multilayered coating film | |
| CN103740291B (en) | Pre-coating film and preparation method thereof | |
| CN108059858A (en) | It is a kind of suitable for coloring coating of silver color alumite thermoprinting foil and preparation method thereof | |
| CN104178017A (en) | Optical-thermal double-solidified baikeding for tinplate and coating method thereof | |
| CN103935093A (en) | Decorative sheet for injection molding, sheet laminated body for injection molding and injection molding products | |
| CN112940634A (en) | TPU (thermoplastic polyurethane) effect color-changed car cover and preparation process thereof | |
| CN204640967U (en) | A kind of household electrical appliances iron plastic composite materials | |
| CN104927620A (en) | Anti-cracking ultraviolet-cured coating system for solid-wood sheet material | |
| CN102076497A (en) | Component with top layer of a pa613 moulding compound | |
| CN104057761A (en) | Shell with decorative layer and manufacturing method thereof | |
| CN105459532A (en) | Scratch resistant brushed metal imitating composite decorative film | |
| CN1793256A (en) | Mirror back paint resin and spraying paint | |
| CN112940635A (en) | Polypropylene decorative film for floor surface veneer | |
| CN104119791A (en) | Special UV type PVD (plating vacuum deposition) primer for improving vibration abrasion resistance | |
| CN101935475B (en) | UV curable plastic paint | |
| JP4664111B2 (en) | Designable laminate sheet and design laminate sheet-coated metal plate | |
| KR20140059323A (en) | Color steel plate and paint composition for primary coat of the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200122 Address after: 215600 west side of Taiwan Road, Zhangjiagang Free Trade Zone, Suzhou City, Jiangsu Province, south side of Hexin chemical Patentee after: ZHANGJIAGANG FREE TRADE ZONE KANGDE FILM INDUSTRY CO., LTD. Address before: 102299, 26 Zhenxing Road, Beijing, Changping District Patentee before: BEIJING KANGDEXIN FUNCTION MATERIAL CO., LTD. |
|
| TR01 | Transfer of patent right |