CN106811085A - A kind of strippable interim packaging film composition - Google Patents
A kind of strippable interim packaging film composition Download PDFInfo
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- CN106811085A CN106811085A CN201510892625.8A CN201510892625A CN106811085A CN 106811085 A CN106811085 A CN 106811085A CN 201510892625 A CN201510892625 A CN 201510892625A CN 106811085 A CN106811085 A CN 106811085A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4808—Mixtures of two or more polyetherdiols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4833—Polyethers containing oxyethylene units
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
- C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
- C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
- C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Polyurethanes Or Polyureas (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses the strippable interim packaging film composition of one kind, it is obtained by the raw material of following mass fraction：Aliphatic Polyester Aqueous Polyurethane Dispersions 60 ~ 80%, Ludox 5 ~ 10%, titanium dioxide 2 ~ 5%, mica 3 ~ 5%, aqueous silicone oil 1 ~ 3%, neopelex 0.1 ~ 0.5%, alkali soluble is swollen acrylic thickener 0.5 ~ 1%, polyether-modified dimethyl siloxane 0.3 ~ 0.6%, acrylic acid copolymer sodium salt 0.1 ~ 0.5%, organic silicon modified by polyether 0.1 ~ 0.5%, balance of distilled water；The Aliphatic Polyester Aqueous Polyurethane Dispersions are obtained by the raw material of following quality proportioning：40 ~ 80 parts of IPDI, 25 ~ 40 parts of polypropylene glycol, 25 ~ 80 parts of polyethylene glycol, 3 ~ 10 parts of dihydromethyl propionic acid, 50 ~ 80 parts of butanone, 5 ~ 12 parts of diethylenetriamine, 3 ~ 9 parts of triethylamine, 1 ~ 3 part of dibutyl tin laurate, 40 ~ 80 parts of distilled water.From Aliphatic Polyester Aqueous Polyurethane Dispersions and Ludox compounding as film forming matter, mechanical strength, strippable property and the tolerance to acid-base salt solution of coating can be improved.
Description
Technical field
The present invention relates to decorating field, more particularly, to the strippable interim packaging film composition of one kind.
Background technology
To prevent material or half product under the atmospheric environment to be contaminated, corrode and damage, and increase the service life, it will usually there is the coating of good protective and strippable property in their surface smear it is carried out effective and interim to seal protection up for safekeeping.In this way, can both isolate air, salt fog, the invasion of microorganism in the external world, antiseptic effect is reached；The effect of decontamination can be cleaned to reach by adsorbing pollutant again.For compared with solvent-borne type protective coating, aqueous protective coating has more security and the feature of environmental protection, thus is widely used in the decorating field of product.But, existing aqueous protective coating still has the shortcomings that coating strength is low, strippable property is poor and barrier propterty is single.
The content of the invention
The purpose of the present invention is the defect for overcoming above-mentioned prior art, there is provided a kind of strippable interim packaging film composition, and effective closing protection can be carried out to protected object, has the advantages that strippable property is good, coating strength is high, cohesive force is strong.
The purpose of the present invention is achieved through the following technical solutions：
A kind of strippable interim packaging film composition, is obtained by the raw material of following mass fraction：Aliphatic Polyester Aqueous Polyurethane Dispersions 60 ~ 80%, Ludox 5 ~ 10%, titanium dioxide 2 ~ 5%, mica 3 ~ 5%, aqueous silicone oil 1 ~ 3%, neopelex 0.1 ~ 0.5%, alkali soluble is swollen acrylic thickener 0.5 ~ 1%, polyether-modified dimethyl siloxane 0.3 ~ 0.6%, acrylic acid copolymer sodium salt 0.1 ~ 0.5%, organic silicon modified by polyether 0.1 ~ 0.5%, balance of distilled water；The Aliphatic Polyester Aqueous Polyurethane Dispersions are obtained by the raw material of following quality proportioning：40 ~ 80 parts of IPDI, 25 ~ 40 parts of polypropylene glycol, 25 ~ 80 parts of polyethylene glycol, 3 ~ 10 parts of dihydromethyl propionic acid, 50 ~ 80 parts of butanone, 5 ~ 12 parts of diethylenetriamine, 3 ~ 9 parts of triethylamine, 1 ~ 3 part of dibutyl tin laurate, 40 ~ 80 parts of distilled water.
Aqueous protective coating is mainly made up of film forming matter, color stuffing, auxiliary agent and solvent.Wherein, film forming matter is the nucleus of protective coating, and the present invention, as film forming matter, can improve mechanical strength, strippable property and the tolerance to acid-base salt solution of coating from Aliphatic Polyester Aqueous Polyurethane Dispersions and Ludox compounding.The following raw material is selected in the preparation of Aliphatic Polyester Aqueous Polyurethane Dispersions：The reaction of isocyanate groups and hydroxyl is carried out with polyethylene glycol from IPDI and polypropylene glycol, the mechanical property and water resistance of film forming can be improved.In the reaction, butanone is added to reduce the viscosity of primary product.From diethylenetriamine as chain extender, it can carry out crosslinking chain extension to system, can so improve the tensile strength of coating film.The addition of Ludox can make in the nano-silica filled film to coating, and the segment of silica can constitute the network-like structure for mutually running through with the organic high molecular polymer in coating and mica, so, the pliability of organic polymer can be improved, meanwhile, coating film bulk strength and hardness can also be improved.Because the permeability of Ludox is fabulous, it can be penetrated into inside protected base material so that coating film is securely attached on base material.Ludox can also improve the consistency of coating film, can so prevent moisture and other media from invading, and then improve the corrosion resistance of film.
Color stuffing is indispensable part in formulation for coating material, and coloring and filling effect are played in coating.Titanium dioxide is the very good Chinese white of covering power, and with good ultraviolet radiation absorption function of shielding.From mica as filler, the performances such as hardness, intensity, wearability and the base material adhesive force of coating film can be improved.Alkali soluble is swollen, and acrylic thickener can improve the viscosity of dispersion, be conducive to dispersion of the mica in system, prevent mica from sinking to luming；The denseness of coating can also be increased simultaneously, the stability of coating is improved.The base material adhesive force of adjusting coating film is capable of in the use of aqueous silicone oil, film is had preferable peeling effect.Used as wetting agent, it can reduce the surface tension of coating film to neopelex, coating film cissing phenomenon is occurred, is prevented from making application uneven because protected object is unclean with soaking base material, reduction well.Because color stuffing all has hydrophobicity, thus their less stables in water, easily reunite and sink.And pass through to add acrylic acid copolymer sodium salt, then can keep dispersiveness of the color stuffing in water.Polyether-modified dimethyl siloxane is used as levelling agent, it is possible to decrease the interfacial tension between coating and ground, improves the phenomenons such as coating is bad to shrinkage cavity that by the wetability of ground, reduction causes by ground, adhesive force.Coating is required for various artificial and mechanically actuateds in production, storage and work progress, foam is so easily caused to produce, and foam can hinder the dispersion of mica, and film coated surface is caused to form pin hole and shrinkage cavity, so as to influence the outward appearance of coating film, anti-corrosive properties and weatherability.And add the organic silicon modified by polyether can be then effectively improved above mentioned problem.
To ensure isocyanate group-NCO and being smoothed out that the hydroxyl-OH reacts, further, the mol ratio of the isocyanate group-NCO and hydroxyl-OH is 2.6 ~ 4 in the raw material of the Aliphatic Polyester Aqueous Polyurethane Dispersions:1.As-NCO/-OH ＜ 2.6, the viscosity of product can be increased, and be difficult dispersion；And as-NCO/-OH ＞ 4, the easy gel of Aliphatic Polyester Aqueous Polyurethane Dispersions reduces storage period.
To reach good neutralization, further, the addition of the triethylamine and the dihydromethyl propionic acid equimolar amounts.
It is that balance is reached between adhesive force and peel strength, further, the Ludox is 1 with the mass ratio of the Aliphatic Polyester Aqueous Polyurethane Dispersions:4.The consumption of Ludox directly affects the combination property and production cost of coating.Specifically, when the addition of Ludox is excessive, not only result in film and become fragile, film adhesive is excessive, be unfavorable for peeling off；The stability of coating system can be also influenceed, increases the production cost of coating.And Ludox consumption it is very few when, active force of the nano-particle in coating is weaker, so causes the performance improvement effect of coating unobvious.Therefore consumption of the Ludox in coating must be rationally appropriate.When the present invention is from the ratio, may be such that the tensile strength and elongation at break of coating film is strengthened, while moderate peel strength is also maintained, good acid and alkali-resistance salt performance.
To improve stability of the color stuffing in system, further, the addition of the acrylic acid copolymer sodium salt is the 2 ~ 4% of the titanium dioxide and mica total amount.
The invention has the advantages that：Obtained packaging film composition of the invention can carry out effective closing protection to protected object, prevent protected object to be contaminated, corrode and damage.Meanwhile, the coating also has stronger cohesive force, good strippable property and coating strength higher.Specifically, mechanical strength, strippable property and the tolerance to acid-base salt solution of coating can be improved as film forming matter from Aliphatic Polyester Aqueous Polyurethane Dispersions and Ludox compounding.From mica as filler, the performances such as hardness, intensity, wearability and the base material adhesive force of coating film can be improved.The viscosity of dispersion can be improved from the swollen acrylic thickener of alkali soluble, increases the denseness of coating, improve the stability of coating.From aqueous silicone oil as remover, the base material adhesive force of energy adjusting coating film improves the rippability of film.From neopelex as wetting agent, coating can be enable film cissing phenomenon occur with soaking base material, reduction well.From acrylic acid copolymer sodium salt as dispersant, dispersiveness of the color stuffing in water can be kept.From polyether-modified dimethyl siloxane as levelling agent, it is possible to decrease the interfacial tension between coating and ground, coating is improved to by the wetability of ground.From organic silicon modified by polyether as defoamer, the generation of foam can be reduced, so as to improve the outward appearance of coating film, anti-corrosive properties and weatherability.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention not limited to this.
Embodiment 1
A kind of strippable interim packaging film composition, is obtained by the raw material of following mass fraction：Aliphatic Polyester Aqueous Polyurethane Dispersions 60 ~ 80%, Ludox 5 ~ 10%, titanium dioxide 2 ~ 5%, mica 3 ~ 5%, aqueous silicone oil 1 ~ 3%, neopelex 0.1 ~ 0.5%, alkali soluble is swollen acrylic thickener 0.5 ~ 1%, polyether-modified dimethyl siloxane 0.3 ~ 0.6%, acrylic acid copolymer sodium salt 0.1 ~ 0.5%, organic silicon modified by polyether 0.1 ~ 0.5%, balance of distilled water；The Aliphatic Polyester Aqueous Polyurethane Dispersions are obtained by the raw material of following quality proportioning：40 ~ 80 parts of IPDI, 25 ~ 40 parts of polypropylene glycol, 25 ~ 80 parts of polyethylene glycol, 3 ~ 10 parts of dihydromethyl propionic acid, 50 ~ 80 parts of butanone, 5 ~ 12 parts of diethylenetriamine, 3 ~ 9 parts of triethylamine, 1 ~ 3 part of dibutyl tin laurate, 40 ~ 80 parts of distilled water..
Aqueous protective coating is mainly made up of film forming matter, color stuffing, auxiliary agent and solvent.Wherein, film forming matter is the nucleus of protective coating, and the present invention, as film forming matter, can improve mechanical strength, strippable property and the tolerance to acid-base salt solution of coating from Aliphatic Polyester Aqueous Polyurethane Dispersions and Ludox compounding.The following raw material is selected in the preparation of Aliphatic Polyester Aqueous Polyurethane Dispersions：The reaction of isocyanate groups and hydroxyl is carried out with polyethylene glycol from IPDI and polypropylene glycol, the mechanical property and water resistance of film forming can be improved.From diethylenetriamine as chain extender, it can carry out crosslinking chain extension to system, can so improve the tensile strength of coating film.The addition of Ludox can make in the nano-silica filled film to coating, and the segment of silica can constitute the network-like structure for mutually running through with the organic high molecular polymer in coating and mica, so, the pliability of organic polymer can be improved, meanwhile, coating film bulk strength and hardness can also be improved.Because the permeability of Ludox is fabulous, it can be penetrated into inside protected base material so that coating film is securely attached on base material.Ludox can also improve the consistency of coating film, can so prevent moisture and other media from invading, and then improve the corrosion resistance of film.
Color stuffing is indispensable part in formulation for coating material, and coloring and filling effect are played in coating.Titanium dioxide is the very good Chinese white of covering power, and with good ultraviolet radiation absorption function of shielding.From mica as filler, the performances such as hardness, intensity, wearability and the base material adhesive force of coating film can be improved.Alkali soluble is swollen, and acrylic thickener can improve the viscosity of dispersion, be conducive to dispersion of the mica in system, prevent mica from sinking to luming；The denseness of coating can also be increased simultaneously, the stability of coating is improved.The base material adhesive force of adjusting coating film is capable of in the use of aqueous silicone oil, film is had preferable peeling effect.Used as wetting agent, it can reduce the surface tension of coating film to neopelex, coating film cissing phenomenon is occurred, is prevented from making application uneven because protected object is unclean with soaking base material, reduction well.Because color stuffing all has hydrophobicity, thus their less stables in water, easily reunite and sink.And pass through to add acrylic acid copolymer sodium salt, then can keep dispersiveness of the color stuffing in water.Polyether-modified dimethyl siloxane is used as levelling agent, it is possible to decrease the interfacial tension between coating and ground, improves the phenomenons such as coating is bad to shrinkage cavity that by the wetability of ground, reduction causes by ground, adhesive force.Coating is required for various artificial and mechanically actuateds in production, storage and work progress, foam is so easily caused to produce, and foam can hinder the dispersion of mica, and film coated surface is caused to form pin hole and shrinkage cavity, so as to influence the outward appearance of coating film, anti-corrosive properties and weatherability.And add the organic silicon modified by polyether can be then effectively improved above mentioned problem.
To ensure isocyanate group-NCO and being smoothed out that the hydroxyl-OH reacts, it is preferable that the mol ratio of the isocyanate group-NCO and hydroxyl-OH is 2.6 ~ 4 in the raw material of the Aliphatic Polyester Aqueous Polyurethane Dispersions:1.As-NCO/-OH ＜ 2.6, the viscosity of product can be increased, and be difficult dispersion；And as-NCO/-OH ＞ 4, the easy gel of Aliphatic Polyester Aqueous Polyurethane Dispersions reduces storage period.
To reach good neutralization, it is preferable that the addition of the triethylamine and the dihydromethyl propionic acid equimolar amounts.
It is that balance is reached between adhesive force and peel strength, it is preferable that the Ludox is 1 with the mass ratio of the Aliphatic Polyester Aqueous Polyurethane Dispersions:4.The consumption of Ludox directly affects the combination property and production cost of coating.Specifically, when the addition of Ludox is excessive, not only result in film and become fragile, film adhesive is excessive, be unfavorable for peeling off；The stability of coating system can be also influenceed, increases the production cost of coating.And Ludox consumption it is very few when, active force of the nano-particle in coating is weaker, so causes the performance improvement effect of coating unobvious.Therefore consumption of the Ludox in coating must be rationally appropriate.When the present invention is from the ratio, may be such that the tensile strength and elongation at break of coating film is strengthened, while moderate peel strength is also maintained, good acid and alkali-resistance salt performance.
To improve stability of the color stuffing in system, it is preferable that the addition of the acrylic acid copolymer sodium salt is the 2 ~ 4% of the titanium dioxide and mica total amount.
Above content is to combine the further description that specific preferred embodiment is made to the present invention, it is impossible to assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, the other embodiment drawn in the case where technical scheme is not departed from should be included within the scope of the present invention.
Claims (5)
1. a kind of strippable interim packaging film composition, it is characterised in that：It is obtained by the raw material of following mass fraction：Aliphatic Polyester Aqueous Polyurethane Dispersions 60 ~ 80%, Ludox 5 ~ 10%, titanium dioxide 2 ~ 5%, mica 3 ~ 5%, aqueous silicone oil 1 ~ 3%, neopelex 0.1 ~ 0.5%, alkali soluble is swollen acrylic thickener 0.5 ~ 1%, polyether-modified dimethyl siloxane 0.3 ~ 0.6%, acrylic acid copolymer sodium salt 0.1 ~ 0.5%, organic silicon modified by polyether 0.1 ~ 0.5%, balance of distilled water；The Aliphatic Polyester Aqueous Polyurethane Dispersions are obtained by the raw material of following quality proportioning：40 ~ 80 parts of IPDI, 25 ~ 40 parts of polypropylene glycol, 25 ~ 80 parts of polyethylene glycol, 3 ~ 10 parts of dihydromethyl propionic acid, 50 ~ 80 parts of butanone, 5 ~ 12 parts of diethylenetriamine, 3 ~ 9 parts of triethylamine, 1 ~ 3 part of dibutyl tin laurate, 40 ~ 80 parts of distilled water.
2. the strippable interim packaging film composition of one kind according to claim 1, it is characterised in that：The mol ratio of the isocyanate group-NCO and hydroxyl-OH is 2.6 ~ 4 in the raw material of the Aliphatic Polyester Aqueous Polyurethane Dispersions:1.
3. the strippable interim packaging film composition of one kind according to claim 1, it is characterised in that：The addition of the triethylamine and the dihydromethyl propionic acid equimolar amounts.
4. the strippable interim packaging film composition of one kind according to claim 1, it is characterised in that：The Ludox is 1 with the mass ratio of the Aliphatic Polyester Aqueous Polyurethane Dispersions:4.
5. the strippable interim packaging film composition of one kind according to claim 1, it is characterised in that：The addition of the acrylic acid copolymer sodium salt is the 2 ~ 4% of the titanium dioxide and mica total amount.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510892625.8A CN106811085A (en) | 2015-11-27 | 2015-11-27 | A kind of strippable interim packaging film composition |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510892625.8A CN106811085A (en) | 2015-11-27 | 2015-11-27 | A kind of strippable interim packaging film composition |
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| CN106811085A true CN106811085A (en) | 2017-06-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112694769A (en) * | 2019-10-07 | 2021-04-23 | 香港科技大学 | Coating composition and preparation method thereof, self-cleaning nano coating and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112694769A (en) * | 2019-10-07 | 2021-04-23 | 香港科技大学 | Coating composition and preparation method thereof, self-cleaning nano coating and preparation method thereof |
| CN112694769B (en) * | 2019-10-07 | 2022-09-27 | 香港科技大学 | Coating composition and preparation method thereof, self-cleaning nano coating and preparation method thereof |
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Application publication date: 20170609 |