CN106977657A - A kind of aqueous peelable resin and its preparation method and application - Google Patents
A kind of aqueous peelable resin and its preparation method and application Download PDFInfo
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- CN106977657A CN106977657A CN201610035116.8A CN201610035116A CN106977657A CN 106977657 A CN106977657 A CN 106977657A CN 201610035116 A CN201610035116 A CN 201610035116A CN 106977657 A CN106977657 A CN 106977657A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/006—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers provided for in C08G18/00
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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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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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
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/671—Unsaturated compounds having only one group containing active hydrogen
- C08G18/672—Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
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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
- 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
- C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D151/08—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/20—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses aqueous peelable resin of one kind and its preparation method and application, the aqueous peelable resin is prepared from by the component of following parts by weight:Polyether Glycols or 10-20 parts of polyester diol, 5-10 parts of diisocyanate, 1-2 parts of small molecule chain extender, 1-2 parts of hydrophilic chain extender, 0.5-1.5 parts of double bond end-capping reagent, 0.01-0.05 parts of catalyst, 0.6-2 parts of nertralizer, 5-10 parts of acrylic monomer, 0.1-0.5 parts of initiator, 40-60 parts of water.Both aqueous peelable the resin-bonded polyacrylate and polyurethane that the present invention is prepared performances, can meet appropriate adhesive force and good rippability.
Description
Technical field
It is aqueous peelable more specifically to one kind the present invention relates to polymeric material field
Resin and its preparation method and application.
Background technology
Metal surface, which is frequently encountered, needs the occasion of provisional protection, and transportation is the most normal
See, such as aluminium alloy, surface protection when plastic-steel door and window dispatches from the factory, to prevent surface tear etc.,
Avoid influence refined, reduce product specification.Except transportation, in the intermediate treatment of processing factory
Process there is also the occasion for needing to use provisional protection, such as metal hardware stamping, wire drawing aluminium sheet,
The temporary obscuration protection to substrate metal surface is needed in the process such as sputter template, to ensure
The final mass and aesthetic of product are not interfered with process.It is general to be protected using interim
The mode of film, is protected temporarily to metal surface, after the completion of protection, is removed by peeling off
Diaphragm.
And for non-stick pan field, it is often necessary to the inside of aluminum pot is carried out not gluing processing, that is, sprayed
Coating tetrafluoroethylene coating or ceramic coating;And for the outside of aluminum pot, it would be desirable that aluminium can be kept
The outward appearance of itself, in order to strengthen corrosion-resistant and heat resistance, it is necessary to be handled by anodic oxidation;
Current technique is first internally to spray polytetrafluorethylecoatings coatings or ceramic coating, then external again
Portion carries out anodized, but is due to that anode oxidation process will carry out pickling to aluminium pot surface
Oxide layer and pollutant are removed with alkali cleaning, inevitably internal coating surface is caused brokenly
It is bad, therefore needed in anode oxidation process to the progress temporary obscuration protection of aluminum pot coated inside.
At present using it is more be cover plate protection by the way of, but this mode complex operation is time-consuming
Arduously;And by spraying one layer of peelable protective film again in coating surface, simple and convenient, protection
Effect is good.This layer of peelable protective film has the requirement of the following aspects:1 and non-sticking lining
There is certain adhesive force, will not peel off in process;2nd, barriering effect is good, can protect
Non-sticking lining is not contaminated, is not contacted by acid, alkali;3rd, it is easily peelable, it will can just be protected with hand
Whole of film is torn, and is not hindered coating, is left no trace.
Patent CN102863888B provides a kind of peelable heat-resisting corrosion protection coating, should
Coating is to be consolidated by the linear polyester resins or acrylic resin of hydroxyl with isocyanate polymer
Obtained by change, the coating is free of solvent, with enhanced water resistance, oil resistivity, temperature tolerance, wear-resisting
Property and removability;But the coating is by the way of bi-component solidification, and preparation process is more, and
There is security risk in the isocyanate polymer used.Patent CN103360931A discloses one
Plant using aqueous polyurethane and styrene-acrylic emulsion as the aqueous Stripable paint of main component, its film forming is resistance to
Aqueous, salt tolerance and Corrosion Protection are excellent;But the coating needs spraying 3-4 roads, and need to do
Dry 7 days could progressive can test, thickness of dry film is 80-90 μm, complex process, time-consuming
Effort, and thickness is still larger, it is more using coating content.
The content of the invention
The technical problem to be solved in the present invention is, for prior art drawbacks described above there is provided
A kind of aqueous peelable resin protected suitable for non-sticking lining surface temporary obscuration and its preparation
Method.The innovative point of the present invention is, by carrying out Molecular Design to the resin, to pass through letter
Single convenient process conditions, are realized when thickness of dry film is only 20-40 μm, so that it may to not gluing
Coating plays excellent insulation blocking effect;The protection film of resin formation is acidproof, alkaline-resisting,
Complete protection after, with hand can readily whole peel off, do not hinder coating, leave no trace;Should
Resin is as a kind of water-base resin, and VOC (VOC) content is low, prepare and
It is environmentally safe during use, and preparation method is simple and easy to apply, raw material is conveniently easy to get, single
Usage amount in plane product is small.
Realizing first purpose of the present invention can be reached by adopting the following technical scheme that:
A kind of aqueous peelable resin, is prepared from by the component of following parts by weight:
Aqueous peelable resin of the present invention, wherein, by the component of following parts by weight
It is prepared from:
Aqueous peelable resin of the present invention, wherein, the polyether Glycols or polyester
The molecular weight of dihydric alcohol is 1000-3000;The polyether Glycols are selected from polypropylene glycol or poly- four
Hydrogen furans glycol;The polyester diol be selected from polyethylene glycol adipate, polyadipate oneself
One kind in diol ester, poly adipate succinic acid ester.
Aqueous peelable resin of the present invention, wherein, the diisocyanate is selected from first
Phenylene diisocyanate, methyl diphenylene diisocyanate, IPDI, six
Methylene diisocyanate, dicyclohexyl methyl hydride diisocyanate, the isocyanic acid of xyxylene two
One kind in ester, tetramethylxylylene diisocyanate.
Aqueous peelable resin of the present invention, wherein, the small molecule chain extender is small
Molecule dihydric alcohol or small molecule diamine;The small molecule dihydric alcohol is selected from ethylene glycol, 1,2-
One kind in propane diols, 1,4- butanediols, diglycol, 1,6-HD;It is described
Small molecule diamine in ethylenediamine, 1,4- cyclohexane diamines, IPD one
Kind;The hydrophilic chain extender is selected from dihydromethyl propionic acid or dimethylolpropionic acid.
Aqueous peelable resin of the present invention, wherein, the double bond end-capping reagent is selected from first
Base hydroxy-ethyl acrylate, hydroxy-ethyl acrylate, hydroxy propyl methacrylate, acrylic acid hydroxypropyl
One kind in ester;The catalyst is selected from stannous octoate, dibutyltin diacetate, two bays
One kind in sour dibutyl tin;The nertralizer is in sodium hydroxide, ammoniacal liquor, triethylamine
One kind;
Aqueous peelable resin of the present invention, wherein, the acrylic monomer is selected from
Methyl methacrylate, n-butyl acrylate, methyl acrylate, n-BMA
In one kind;The initiator is selected from azodiisobutyronitrile or potassium peroxydisulfate;The water is pure
Water purification or deionized water.
Realize that second object of the present invention can reach by adopting the following technical scheme that:
A kind of preparation method of aqueous peelable resin as described above, comprises the following steps:
(1) polyaminoester emulsion/acrylic monomer mixture is prepared:By polyether Glycols or poly-
Ester dihydric alcohol is put into reactor, is warming up to 100-120 DEG C, vacuum dehydration 0.5-2h, so
Be cooled to afterwards after 50-60 DEG C stop vacuumize, sequentially added under stirring diisocyanate,
Small molecule chain extender, hydrophilic chain extender and catalyst, simultaneously controlling reaction temperature exists for slow heating
70-90 DEG C, 2-4h is reacted, the content of NCO in performed polymer is surveyed with di-n-butylamine method, NCO is treated
Stable content is cooled to 60-70 DEG C after 1-3%, adds double bond end-capping reagent, reacts 1-2h,
40-50 DEG C is cooled to, nertralizer is added, neutralized after 15-30min, half weight is added
Acrylic monomer, add water emulsification 15-30min under 1000-1500rpm stirrings, is gathered
Urethane emulsion/acrylic monomer mixture;
(2) polyacrylate-polyurethane copolymer emulsion is prepared:By gathering that step (1) is obtained
Urethane emulsion/acrylic monomer mixture is added in reactor, adds initiator, heating
To 60-80 DEG C, 0.5h is incubated, the acrylic monomer of second half weight is added drop-wise to reactor
In, rate of addition is 1-2 drops/s, continues to react 3-6h, cooling discharge, poly- third obtained
Olefin(e) acid ester-polyurethane copolymerization emulsion is aqueous peelable resin.
Realize that third object of the present invention can reach by adopting the following technical scheme that:This hair
The application of aqueous peelable tree described in first bright purpose, it is used to be used as metal surface
Temporary protective material.
The invention has the advantages that:
(1) aqueous peelable the resin-bonded polyacrylate and poly- ammonia that the present invention is prepared
Both esters performance, can meet appropriate adhesive force and good rippability;
(2) after aqueous peelable resin film forming of the invention, when thickness of dry film is 20-40 μm,
Can acid and alkali-resistance corrosion, soda acid immersion after, still can with whole stripping, and it is shielded not
Snearing layer surface remains to keep original outward appearance and performance;
(3) preparation method of the invention is simple and easy to apply, and raw material is conveniently easy to get, and prepares
Resin is as a kind of water-base resin, and VOC content is low, to environment without dirt during preparation and use
Dye;
(4) aqueous peelable resin of the invention can be by conventional coating application mode, such as
Spraying, showering, dip-coating etc., are coated on the non-sticking lining that need to be protected, and the resin compactness
Well, harmful effect of the external environment condition to coating surface can effectively be completely cut off.
Embodiment
Below, with reference to embodiment, the present invention is described further:
Embodiment 1
A kind of aqueous peelable resin, is made by following preparation method:
(1) 10 parts by weight, molecular weight are put into reactor for 2000 polypropylene glycol
In, 100 DEG C are warming up to, then vacuum dehydration 0.5h is cooled to after 50 DEG C and stops taking out
5 parts by weight of toluene diisocyanate, 1 parts by weight Isosorbide-5-Nitrae-fourth two are sequentially added under vacuum, stirring
Alcohol, 1.2 parts by weight dihydromethyl propionic acids and 0.01 parts by weight of octanoic acid stannous, treat temperature stabilization
Afterwards, simultaneously controlling reaction temperature, at 70 DEG C, reacts 2h for slow heating, is surveyed with di-n-butylamine method
NCO content in performed polymer, it is stable after 1.5-2.5% after NCO content, it is cooled to
60 DEG C, 0.5 weight parts of methacrylic acid hydroxyl ethyl ester is added, 1h is reacted, is cooled to 40 DEG C,
1 parts by weight triethylamine is added, is neutralized after 15min, 1.5 weight parts of methacrylic acid first are added
Ester, 1 weight parts of methacrylic acid N-butyl, add water emulsification under 1000rpm stirrings
15min, obtains polyaminoester emulsion/acrylic monomer mixture;
(2) polyaminoester emulsion for obtaining step (1)/acrylic monomer mixture is added
Into reactor, 0.1 parts by weight azodiisobutyronitrile is added, 60 DEG C, insulation are warming up to
0.5h, 1.5 parts by weight of methylmethacrylate, 1 weight parts of methacrylic acid N-butyl are dripped
It is added in reactor, rate of addition is 1-2 drops/s, continues to react 3h, cooling discharge is obtained
To polyacrylate-polyurethane copolymer emulsion be the peelable resin of institute's water requiremen.
Embodiment 2
A kind of aqueous peelable resin, is made by following preparation method:
(1) 10 parts by weight, molecular weight are put into for 3000 polyethylene glycol adipate
In reactor, 100 DEG C or so are warming up to, then vacuum dehydration 1h is cooled to 60 DEG C
Stop vacuumizing afterwards, 8 parts by weight IPDIs, 2 weights are sequentially added under stirring
Measure part diglycol, 1.4 parts by weight dimethylolpropionic acids and the bay of 0.02 parts by weight two
Sour dibutyl tin, treats after temperature stabilization, slowly heats up and controlling reaction temperature is at 80 DEG C,
3h is reacted, the content of NCO in performed polymer is surveyed with di-n-butylamine method, NCO stable content is treated
After 1.5-2.5%, 60 DEG C are cooled to, 1.0 parts by weight of acrylic acid hydroxyl ethyl esters, reaction are added
2h, is cooled to 50 DEG C, adds 1 parts by weight triethylamine, neutralizes after 20min, adds 2 weights
Part methyl methacrylate, 1 parts by weight of acrylic acid N-butyl are measured, is added under 1500rpm stirrings
Water emulsification 30min, obtains polyaminoester emulsion/acrylic monomer mixture;
(2) polyaminoester emulsion for obtaining step (1)/acrylic monomer mixture is added
Into reactor, 0.1 parts by weight potassium peroxydisulfate is added, 80 DEG C are warming up to, 0.5h is incubated,
2 parts by weight of methylmethacrylate, 1 parts by weight of acrylic acid N-butyl are added drop-wise to reactor
In, rate of addition is 1-2 drops/s, continues to react 3h, cooling discharge, obtained polypropylene
Acid esters-polyurethane copolymerization emulsion is the peelable resin of institute's water requiremen.
Embodiment 3
A kind of aqueous peelable resin, is made by following preparation method:
(1) 10 parts by weight, molecular weight are put into instead for 2000 polytetrahydrofuran diol
Answer in device, be warming up to 120 DEG C or so, then vacuum dehydration 1h is cooled to after 60 DEG C
Stopping is vacuumized, and 10 parts by weight hexamethylene diisocyanates, 2 weights are sequentially added under stirring
Measure part ethylenediamine, 2 parts by weight dihydromethyl propionic acids and the acetic acid dibutyl of 0.05 parts by weight two
Tin, is treated after temperature stabilization, simultaneously controlling reaction temperature, at 90 DEG C, reacts 2h for slow heating,
The content of NCO in performed polymer is surveyed with di-n-butylamine method, treats NCO stable content in 1.5-2.5%
Afterwards, 70 DEG C are cooled to, 1.5 parts by weight of acrylic acid hydroxypropyl acrylates are added, 2h is reacted, is cooled to
50 DEG C, 0.6 parts by weight of sodium hydroxide is added, is neutralized after 30min, 3 parts by weight methyl are added
Methyl acrylate, 1 parts by weight of acrylic acid N-butyl, 1 parts by weight of acrylic acid methyl esters,
Add water emulsification 30min under 1500rpm stirrings, obtains polyaminoester emulsion/acrylic monomer and mixes
Compound;
(2) polyaminoester emulsion for obtaining step (1)/acrylic monomer mixture is added
Into reactor, 0.5 parts by weight potassium peroxydisulfate is added, 80 DEG C are warming up to, 0.5h is incubated,
By 3 parts by weight of methylmethacrylate, 1 parts by weight of acrylic acid N-butyl, 1 parts by weight propylene
Sour methyl esters is added drop-wise in reactor, and rate of addition is 1-2 drops/s, continues to react 6h, cooling
Discharging, obtained polyacrylate-polyurethane copolymer emulsion is the peelable tree of institute's water requiremen
Fat.
Embodiment 4
A kind of aqueous peelable resin, is made by following preparation method:
(1) 10 parts by weight molecular weight are put into instead for 1000 poly adipate succinic acid ester
Answer in device, be warming up to 100 DEG C or so, then vacuum dehydration 0.5h is cooled to 50 DEG C
Stop vacuumizing afterwards, the isocyanic acid of 10 parts by weight dicyclohexyl methyl hydride two is sequentially added under stirring
Ester, 1.5 parts by weight IPDs, 2 parts by weight dihydromethyl propionic acids and 0.01 parts by weight
Dibutyl tin laurate, is treated after temperature stabilization, simultaneously controlling reaction temperature exists for slow heating
70 DEG C, 4h is reacted, the content of NCO in performed polymer is surveyed with di-n-butylamine method, NCO content is treated
It is stable to be cooled to 60 DEG C after 1.5-2.5%, add 1 weight parts of methacrylic acid hydroxypropyl
Ester, reacts 2h, is cooled to 50 DEG C, adds 0.6 parts by weight ammoniacal liquor, neutralizes after 15min,
3 parts by weight of methylmethacrylate, 1 parts by weight of acrylic acid N-butyl are added, in 1000rpm
Add water emulsification 15min under stirring, obtains polyaminoester emulsion/acrylic monomer mixture;
(2) polyaminoester emulsion for obtaining step (1)/acrylic monomer mixture is added
Into reactor, 0.2 parts by weight azodiisobutyronitrile is added, 60 DEG C, insulation are warming up to
0.5h, 3 parts by weight of methylmethacrylate, 1 parts by weight of acrylic acid N-butyl are added drop-wise to instead
Answer in device, rate of addition is 1-2 drops/s, continue to react 3h, cooling discharge, what is obtained is poly-
Acrylate-polyurethane copolymer emulsion is the peelable resin of institute's water requiremen.
Below, the aqueous peelable resin prepared to embodiment 1-4 carries out performance test, table 1
For the basic performance method of testing of film, wherein resistance to acids and bases is to carry out anode according to aluminium sheet
The maximum conditions that can be born during oxidation processes.Table 2 is film basic performance test result.
The test condition of the performance of aqueous peelable resin obtained by the embodiment of the present invention of table 1
Test event | Test condition |
Solid content | 10min is heated at 120 DEG C |
Thickness | Film thickness gauge |
Peelable degree | Range estimation |
Acid resistance | 200g/L sulfuric acid solutions, 30min, 20-25 DEG C |
Alkali resistance | 200g/L sodium hydroxide solutions, 30min, 55-60 DEG C |
Water resistance | Drop 1 is dripped on hanging peelable film, observes 1h |
Oil resistivity | Drop 1 drips dimethicone on hanging peelable film, observes 1h |
The results of property of aqueous peelable resin obtained by the embodiment of the present invention of table 2
Note:In table 2+for stripping process it is slightly imperfect, it is necessary to could peel off twice completely,
++ for can quick completely stripping once.
The resin that this method is prepared is computed, and its theoretical coated weight is 6-8m2/kg。
From above-mentioned Biao Ke get, designing the peelable film prepared by the formula of the present invention can be effective
Prevent metal surface by acid and alkali corrosion.The resin can be molten in 55-60 DEG C of 200g/L NaOH
30 minutes are soaked in liquid without no foaming that comes off, film is complete, and simultaneously can be at 20-25 DEG C
200g/L H2SO4Kept for 30 minutes in solution, can simply complete stripping after washing.
And the film stripped down can distinguish Waterproofing/oilproofing 1h and will not permeate.
The design principle of the aqueous peelable resin formula of the present invention is as follows:Aqueous polyurethane be with
Highly polar carbamate groups are the polymer of primary structure, with excellent flexible
Property, wearability, chemical-resistant, strong adhesive force, and with water substitute organic solvent make
For decentralized medium, with nontoxic, nonflammable, free from environmental pollution, energy-conservation, safe and reliable
The advantages of, but due to introducing hydrophilic radical in molecular structure, aqueous polyurethane it is water-fast
Some performances such as property, resistance to acids and bases are also less desirable;Polyacrylate dispersion has excellent
Hardness, glossiness, water resistance, stain resistance, resistance to acids and bases and good weatherability,
Mutual supplement with each other's advantages can be realized by being combined with aqueous polyurethane.
The present invention is sealed by using double bond containing end-capping reagent to aqueous polyurethane strand
End, and then can carry out emulsion copolymerization with acrylic monomer, has obtained a kind of polyurethane-poly-
The copolymer emulsion of acrylate, is compared with existing PUA emulsions, can be more effective
With reference to the excellent properties of both polyurethane and polyacrylate, its peelable film prepared is met
The adhesive force appropriate to non-viscous paint and good rippability, and in smaller thickness
Good acid-fast alkali-proof and water and oil-resistant can be played, excellent interim protection can be played and made
With.
It will be apparent to those skilled in the art that technical scheme and structure that can be as described above
Think, make other various corresponding changes and deformation, and all these change and deformation
It should all belong within the protection domain of the claims in the present invention.
Claims (9)
1. a kind of aqueous peelable resin, it is characterised in that be prepared from by the component of following parts by weight:
2. aqueous peelable resin according to claim 1, it is characterised in that be prepared from by the component of following parts by weight:
3. aqueous peelable resin according to claim 1 or 2, it is characterised in that the polyether Glycols or the molecular weight of polyester diol are 1000-3000;The polyether Glycols are selected from polypropylene glycol or polytetrahydrofuran diol;The one kind of the polyester diol in polyethylene glycol adipate, polyadipate hexylene glycol ester, poly adipate succinic acid ester.
4. aqueous peelable resin according to claim 1 or 2, characterized in that, the one kind of the diisocyanate in toluene di-isocyanate(TDI), methyl diphenylene diisocyanate, IPDI, hexamethylene diisocyanate, dicyclohexyl methyl hydride diisocyanate, xylylene diisocyanate, tetramethylxylylene diisocyanate.
5. aqueous peelable resin according to claim 1 or 2, it is characterised in that the small molecule chain extender is small molecule dihydric alcohol or small molecule diamine;The one kind of the small molecule dihydric alcohol in ethylene glycol, 1,2- propane diols, 1,4- butanediols, diglycol, 1,6-HD;The one kind of the small molecule diamine in ethylenediamine, 1,4- cyclohexane diamines, IPD;The hydrophilic chain extender is selected from dihydromethyl propionic acid or dimethylolpropionic acid.
6. aqueous peelable resin according to claim 1 or 2, it is characterised in that the one kind of the double bond end-capping reagent in hydroxyethyl methacrylate, hydroxy-ethyl acrylate, hydroxy propyl methacrylate, hydroxypropyl acrylate;The one kind of the catalyst in stannous octoate, dibutyltin diacetate, dibutyl tin laurate;The one kind of the nertralizer in sodium hydroxide, ammoniacal liquor, triethylamine.
7. aqueous peelable resin according to claim 1 or 2, it is characterised in that the one kind of the acrylic monomer in methyl methacrylate, n-butyl acrylate, methyl acrylate, n-BMA;The initiator is selected from azodiisobutyronitrile or potassium peroxydisulfate;The water is pure water or deionized water.
8. a kind of preparation method of aqueous peelable resin as claimed in claim 1 or 2, it is characterised in that comprise the following steps:
(1) polyaminoester emulsion/acrylic monomer mixture is prepared:Polyether Glycols or polyester diol are put into reactor, it is warming up to 100-120 DEG C, vacuum dehydration 0.5-2h, then it is cooled to after 50-60 DEG C and stops vacuumizing, diisocyanate is sequentially added under stirring, small molecule chain extender, hydrophilic chain extender and catalyst, slowly heat up and controlling reaction temperature is at 70-90 DEG C, react 2-4h, it is cooled to 60-70 DEG C, add double bond end-capping reagent, react 1-2h, it is cooled to 40-50 DEG C, add nertralizer, neutralize after 15-30min, add the acrylic monomer of half weight, add water emulsification 15-30min under 1000-1500rpm stirrings, obtain polyaminoester emulsion/acrylic monomer mixture;
(2) polyacrylate-polyurethane copolymer emulsion is prepared:The polyaminoester emulsion that step (1) is obtained/acrylic monomer mixture is added in reactor, add initiator, it is warming up to 60-80 DEG C, it is incubated 0.5h, the acrylic monomer of second half weight is added drop-wise in reactor, rate of addition is 1-2 drops/s, continues to react 3-6h, cooling discharge, obtained polyacrylate-polyurethane copolymer emulsion is aqueous peelable resin.
9. a kind of application of aqueous peelable tree according to claim 1 or 2, it is characterised in that:It is used for the temporary protective material as metal surface.
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107722687A (en) * | 2017-09-19 | 2018-02-23 | 河北晨阳工贸集团有限公司 | Water-based peelable resin and preparation method thereof |
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CN107722687A (en) * | 2017-09-19 | 2018-02-23 | 河北晨阳工贸集团有限公司 | Water-based peelable resin and preparation method thereof |
CN107722687B (en) * | 2017-09-19 | 2020-02-07 | 河北晨阳工贸集团有限公司 | Water-based peelable resin and preparation method thereof |
CN109403091A (en) * | 2018-10-30 | 2019-03-01 | 浙江蓝宇数码科技股份有限公司 | A kind of environment-friendly digital weaving inking printing pigment ink and preparation method |
CN109486402A (en) * | 2018-11-19 | 2019-03-19 | 山东天庆科技发展有限公司 | Aqueous peelable resin of one kind and preparation method thereof |
CN111808561A (en) * | 2020-06-16 | 2020-10-23 | 惠州市亨迪树脂制品有限公司 | Modified polyurethane adhesive for TPR sole treatment-free and preparation method thereof |
JP2021006638A (en) * | 2020-09-24 | 2021-01-21 | 藤森工業株式会社 | Anti-static surface protective film |
JP7007440B2 (en) | 2020-09-24 | 2022-01-24 | 藤森工業株式会社 | Antistatic surface protective film |
CN112759718A (en) * | 2020-12-30 | 2021-05-07 | 上海宝庆通用电工有限公司 | Strippable resin and preparation method thereof |
CN112726273A (en) * | 2021-01-30 | 2021-04-30 | 汕头市鑫源化工科技有限公司 | Water-based high-gloss paint and preparation method thereof |
CN112726273B (en) * | 2021-01-30 | 2023-08-22 | 汕头市鑫源化工科技有限公司 | Water-based high-gloss paint and preparation method thereof |
CN113683936A (en) * | 2021-08-27 | 2021-11-23 | 浙江高成绿能科技有限公司 | Water-based strippable nuclear biochemical protective film spraying liquid and preparation and use methods thereof |
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