CN108913052A - It is a kind of quickly exfoliated to be fixed temporarily bonding sheet and preparation method thereof - Google Patents
It is a kind of quickly exfoliated to be fixed temporarily bonding sheet and preparation method thereof Download PDFInfo
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- CN108913052A CN108913052A CN201810733606.4A CN201810733606A CN108913052A CN 108913052 A CN108913052 A CN 108913052A CN 201810733606 A CN201810733606 A CN 201810733606A CN 108913052 A CN108913052 A CN 108913052A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/26—Porous or cellular plastics
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only 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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/20—Presence of organic materials
- C09J2400/24—Presence of a foam
- C09J2400/243—Presence of a foam in the substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
- C09J2475/006—Presence of polyurethane in the substrate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The present invention, which provides, a kind of quickly exfoliated to be fixed temporarily with bonding sheet, its water imbibition substrate and the adhesive phase positioned at water imbibition substrate two sides, described adhesive layer is that easy-stripping type adhesive is prepared, the water imbibition substrate is water imbibition polyurethane foam, for its surface roughness Ra between 5-25 microns, easy-stripping type adhesive includes acrylic polymer, isopropyl acrylamide microgel, hot separation factor, starch and auxiliary agent.By to bonding chip architecture selection, to the selection and adjustment of component, achieved the effect that a kind of with excellent detachment rate, peel strength and cohesive force.
Description
Technical field
The present invention relates to a kind of bonding sheet fields, and in particular to one kind is fixed temporarily bonding sheet field, further relates to
It is quickly exfoliated to be fixed temporarily bonding sheet field.
Background technique
It is fixed temporarily adhesive to refer to for specific purpose, carries out of short duration bonding to adherend, and hot soarfing is from being one
Kind removing mode makes the adhesion failure of adhesive by giving certain heat or other factors.It is fast with industrial processes industry
Speed development, the field for needing temporarily to be fixed is more and more, such as:Compound glass processing, silicon chip grinding etc..In these fields
In, it is consistent to the Essential Performance Requirements of adhesive, require that there is good adhesive and adhesive rapid failure.Now
Relevant adhesive material through reporting is more chaotic, is related to multiple and different systems, final to imitate such as polyurethane, epoxy and acrylic compounds
Fruit is irregular, and wherein esters of acrylic acid is most common type.
Be fixed temporarily adhesive in use, peeling rate and using when peel strength and removing rear surface residual be
Important performance.How key points and difficulties that above-mentioned three content be research are balanced.Inventor formerly has studied interim solid
Surely bonding sheet is used, and has carried out patent application " a kind of noresidue type be fixed temporarily with bonding sheet and preparation method thereof ", but its is molten
The speed of removing of rising still is difficult to meet the high-end requirement of actual use, needs further to be promoted.It is residual for adherend surface
It stays, fissility and peeling rate problem, has carried out systematic research, first scheme is improved, obtained of the invention
Scheme.
Summary of the invention
Goal of the invention：Selection the problems in above-mentioned in order to solve, that the present invention passes through selection, component to bonding plate substrate
And adjustment, one kind is obtained while not damaging easy peelability, keeps the cohesive strength of good adhesive, meanwhile, it improves
Peeling rate has achieved the effect that the easily peelable intensity of balance, adherend remained on surface and peeling rate.
The present invention also provides a kind of quickly exfoliated preparation methods being fixed temporarily with bonding sheet.
In order to reach above-mentioned technical effect, the following technical solutions are proposed by the present invention：
Summary of the invention
The present invention provides it is a kind of it is quickly exfoliated be fixed temporarily with bonding sheet, wherein water imbibition substrate and be located at the suction
The adhesive phase of aqueous substrate two sides, described adhesive layer are that easy-stripping type adhesive is prepared.
As optimal technical scheme, the water imbibition substrate is water imbibition polyurethane foam, and surface roughness Ra exists
Between 5-25 microns.
As optimal technical scheme, the water imbibition base material thickness is 20-100 μm, the adhesive phase of the substrate two sides
Thickness is 50-200 μm.
As optimal technical scheme, the easy-stripping type adhesive includes acrylic polymer, isopropyl acrylamide
Amine microgel, hot separation factor, starch and other auxiliary agents.
As optimal technical scheme, the easy-stripping type adhesive includes 100 parts by weight of acrylic acid esters polymers, 10-
25 parts by weight isopropyl acrylamide microgels, the hot separation factor of 1-5 parts by weight, 1-2 weight starch and 1-20 parts by weight its
His auxiliary agent.
As optimal technical scheme, the acrylic polymer is by including acrylic acid, hydroxy-ethyl acrylate, acrylic acid
Methyl esters, urethane acrylate and dimethylene bisacrylamide, molar ratio 2-3:1-1.5:1:0.01-0.03：0.005-
0.05。
As optimal technical scheme, the isopropyl acrylamide microgel is de- by N-isopropylacrylamide monomer, illiteracy
Soil, dimethylene bisacrylamide, water free radical polymerization obtain, and said components ratio is 1mol：0.2g：0.002mol：
50ml。
As optimal technical scheme, the N-isopropylacrylamide monomer, montmorillonite, dimethylene bisacrylamide and water
The flask for being placed with magnetic stir bar is added, deoxygenation is added initiator potassium persulfate, reacts 5 hours at 30 DEG C, magnetic agitation speed
Spend 200rpm；After reaction, continue at 50rpm, 20 DEG C stirring 2 hours to get.
As optimal technical scheme, the separation factor be sodium bicarbonate, the starch be water soluble starch, it is described other
Auxiliary agent is tackifying resin.
As optimal technical scheme, the tackifying resin is rosin resin or terpene resin.
The quick exfoliated method being fixed temporarily with bonding sheet is prepared the present invention also provides a kind of, easy-stripping type is bonded
Agent is respectively coated in water imbibition substrate two sides, and adhesive surface adheres to stripping film respectively.
Detailed description of the invention
It is a kind of quickly exfoliated to be fixed temporarily with bonding sheet, water imbibition substrate and positioned at water imbibition substrate two sides
Adhesive phase, described adhesive layer are that easy-stripping type adhesive is prepared.Water imbibition substrate has certain roughness, with bonding
Agent has good adhesive force, and expands after meeting water, and surface roughness variation, script attachment point destroys, adhesive and substrate
Quickly removing is realized in removing, and the water area that contacts with adhesive becomes larger after removing, and adhesive is also quickly removed.Adhesive phase selection
The easy peelability of adhesive and adherend performance can be improved in regioselective easy-stripping type adhesive, and the two specifically selects flat
Weighed easy peelability, the performance of adherend low-residual and peeling rate, makes it suitable for being fixed temporarily and quickly remove.
Water imbibition polyurethane foam
The present invention further selects water imbibition polyurethane foam base by the way that polymeric substrate is arranged in bonding sheet
Material can be improved while guaranteeing the intensity of bonding sheet, detachment rate can be greatly improved.Since moisture can lead to
Water imbibition polyurethane foam is crossed, moisture transmitance is improved.Water imbibition polyurethane foam can be using normal in the prior art
Any water imbibition polyurethane foam seen obtains, and can increase the dosage of polymer polyatomic alcohol or water imbibition group is added wherein
Point, so that it is quickly absorbed water.
Publication No. can be used in water imbibition polyurethane in the aqueous polyurethane froth bed as a preferred technical solution,
CN103221074A (application No. is 201180052058.5), it is entitled：Hydrophilic aliphatic polyurethane foams, in the patent
The processing step and composition of embodiment part are optimal modes.
As further preferred technical solution, the water imbibition base material thickness is 20-100 μm, and technical staff is according to reality
Border use condition selects suitable thickness；Since the intensity of foam substrate is relatively low, if base material thickness is excessive, bonding sheet
Intensity have lesser tendency；If substrate is excessively thin, moisture penetrates into difficulty, works slow.Further preferably 40-80 μm, then into one
Preferably 50-60 μm of step.
The surface roughness Ra of water imbibition polyurethane foam is between 5-25 microns in the present invention.Pass through surface roughness
Control, when being not used or not being immersed in the water, what adhesive can be stable is attached to water imbibition polyurethane foam, ensure that base
This bonding sheet intensity；After the water suction of water imbibition polyurethane foam, surface is expanded, and surface roughness significantly reduces, table
The smoothness in face increases, and the attachment point of adhesive significantly reduces, and adhesive force decline, peeling-off, moisture can pass through release surface
Into contacting with adhesive, also accelerate the removing of the adhesive on adherend surface.
Acrylic polymer
Acrylic polymer is the matrix resin of adhesive in the present invention, provides the basic adhesiveness of adhesive
Energy.The acrylic polymer by include acrylic acid, hydroxy-ethyl acrylate, methyl acrylate, urethane acrylate and
Dimethylene bisacrylamide, molar ratio 2-3:1-1.5:1:0.1-0.3：0.005-0.05.
Wherein, acrylic acid and hydroxy-ethyl acrylate have polar group, stronger to the bonding force of the adherends such as glass, can
To meet the adhesive strength in process.Acrylic acid usage amount is larger, strong with the affinity of water in stripping process, has
Conducive to removing；And hydroxy-ethyl acrylate is to ensure adhesive strength to improve adhesive cohesive force, glass processing or silicon wafer add
Work does not shift and cohesional failure.The ratio of acrylic acid and hydroxy-ethyl acrylate wants strict control, if acrylic acid content ratio
Example is excessively high, and the adhesive residue after adhesive cohesive force is insufficient and removing has the tendency that increase；If acrylic acid is too low, removing
Charge stripping efficiency in the process is lower.
Urethane acrylate belongs to a kind of intermediary's formula monomer, and the adherency of adhesive and polyurethane foam can be improved
Power, but its used in amounts wants strict control, and if dosage is excessive, adhesive and polyurethane foam adhesive force are excessive, even if water
The removing of water imbibition polyurethane foam and adhesive after swelling is also more difficult；If dosage is too small, adhesive
It is lower with the adhesive force of water imbibition polyurethane foam, influence the interlayer between adhesive phase and water imbibition polyurethane foam
Power, may be using preceding just peeling-off.Urethane acrylate used in the present invention is most preferably Laromer LR
9004。
Dimethylene bisacrylamide as crosslinking agent, dosage should strict control, additional amount should not be too large, be added
Greatly, crosslinking degree increases, and water removing difficulty is met when that need to remove, dosage is too small, and crosslinking degree is lower, influences the cohesion of adhesive
Power is not able to satisfy the demand of adhesion strength in process.
Preferred acrylic acid and hydroxy-ethyl acrylate ratio are 2 as a preferred technical solution,：1, as most preferred ratio
Example, the acrylic polymer by include acrylic acid, hydroxy-ethyl acrylate, methyl acrylate, urethane acrylate and
Dimethylene bisacrylamide, molar ratio 2:1:1:0.02：0.02；The acrylic polymer by include acrylic acid,
Hydroxy-ethyl acrylate, methyl acrylate, urethane acrylate and dimethylene bisacrylamide, molar ratio 3:1.5:1:
0.02：0.03.
The adhesive phase thickness of the substrate two sides is 50-200 μm, technical staff according to the service condition of bonding sheet,
There is motivation to select specific bondline thickness, in order to reduce the influence of adhesive strength in adhesive layer, preferably adhesive phase thickness not
Preferably blocked up, preferably 50-100 μm, if adhesive phase thickness is excessive, adherend tendency remained on surface increases；If thickness
Too small, the adhesion strength of adherend will receive influence.
Isopropyl acrylamide microgel
The removing of adhesive is the intensity rapid decrease for promoting adhesive using moisture in the present invention.The stripping of usual adhesive
From being mode from outside to inside, the combination of inner and outside is utilized for the first time, increases promotion removing from inside to outside by the present invention.
Isopropyl acrylamide gel belongs to temperature sensitive responsiveness material in this field, shrinks, will wrap in more than 30 degree
The water release being contained in gel rubber material carries out the dissociation of adhesive from adhesive inside, guarantees quickly removing.Meanwhile it is different
The response temperature of propylacrylamide microgel is low, can effectively reduce exfoliation temperature, changes this field and usually requires high temperature
The status of removing.Gel rubber material is usually bulk, should not be dispersed, and present invention employs microgels, with uniform particle diameter, response
The fast feature of rate, dissociation from inside to outside are quicker.
The isopropyl acrylamide microgel passes through N-isopropylacrylamide monomer, montmorillonite, the double propylene of dimethylene
Amide, water free radical polymerization obtain, and said components ratio is 1mol：0.2g：0.002mol：50ml.Montmorillonite and two methylenes
Base bisacrylamide plays the role of crosslinking agent, and wherein montmorillonite belongs to physical crosslinking, is crosslinked by winding and Van der Waals force,
Belonging to provisional crosslinking dimethylene bisacrylamide is crosslinking copolymerization, belongs to permanent cross-links.The selection of provisional crosslinking has
Conducive to cross-link intensity is provided under non-aqueous conditions, in water, crosslinking degree is reduced, and is easily solved than dimethylene bisacrylamide
From water peeling effect improves.
Specifically preparation method can be：N-isopropylacrylamide monomer, montmorillonite, dimethylene bisacrylamide and water add
Enter to be placed with the flask of magnetic stir bar, deoxygenation, initiator potassium persulfate is added, is reacted 5 hours at 30 DEG C, magnetic stirring speed
200rpm；After reaction, continue at 50rpm, 20 DEG C stirring 2 hours to get.
Separation factor
The substance with lower decomposition temperature all can serve as separation factor in the prior art, can act as promotion removing
Effect, it is common as：Sodium bicarbonate, ammonium hydrogen carbonate, sodium carbonate, ammonium chloride etc..
As optimal technical scheme, heretofore described separation factor be sodium bicarbonate, sodium bicarbonate at 50 DEG C more than
Decomposition is had, carbon dioxide is generated, promotes the removing of adhesive, adhesion strength is greatly lowered.Meanwhile sodium bicarbonate is in acidity
Under the conditions of decompose and can achieve the effect quickly removed quickly.Sodium bicarbonate is selected as the effect of separation factor better than other.
Other components
The present invention also further uses starch, and described is water soluble starch, and when adhesive is immersed in the water, starch dissolves
Hole path is formed, moisture can quickly enter, and cooperate with other components, achieve the effect that quickly to remove.
The adhesion property in adhesive use process can be improved for tackifying resin in the auxiliary agent that the present invention uses.Wherein
The tackifying resin is preferably rosin resin or terpene resin.
Preparation method
The quickly exfoliated method being fixed temporarily with bonding sheet is prepared, easy-stripping type adhesive is respectively coated in porous modeling
Expect substrate two sides, is connected to adhesive by the hole of porous plastic substrates, adhesive surface adheres to stripping film.
Beneficial technical effect
The present invention by selection to bonding chip architecture, to the selection and adjustment of component, obtain it is a kind of fast in detachment rate,
Cohesive strength, the peel strength for keeping good adhesive have reached balance easy peelability and adherend effect remained on surface.
Meanwhile the cooperation of adhesive and substrate is realized and is fixed temporarily with bonding sheet in removing more efficiently, at low temperatures and high temperatures
It can be carried out strip operation, while also overcoming the problem that low temperature peeling effect is bad in the prior art.
Specific embodiment
In order to make technical staff be more clear it is intuitive understand the present invention, illustratively select below specific embodiment and
Technical solution is specifically described in comparative example, and the scheme of embodiment does not constitute a limitation of the invention, and does not protect to claim
Shield range has an impact.Any technical solution without departing substantially from compositions such as the component replacements of basic idea of the present invention falls the application
In protection scope.
Preparation example 1:
The group of acrylic polymer A becomes：Acrylic acid, hydroxy-ethyl acrylate, methyl acrylate, polyurethane acroleic acid
Ester and dimethylene bisacrylamide, molar ratio 2:1:1:0.02:0.02, it is obtained by free radical polymerization, weight average molecular weight
About 120,000.
Preparation example 2:
The group of acrylic polymer B becomes：Acrylic acid, hydroxy-ethyl acrylate, methyl acrylate and dimethylene are double
Acrylamide, molar ratio 2:1:1:0.02:0.02, it is obtained by free radical polymerization, weight average molecular weight is about 120,000.
Preparation example 3:
The group of acrylic polymer C becomes：Acrylic acid, hydroxy-ethyl acrylate, methyl acrylate, polyurethane acroleic acid
Ester and dimethylene bisacrylamide, molar ratio 2:1:1:0.1:0.02, it is obtained by free radical polymerization, weight average molecular weight is about
It is 120,000.
Preparation example 4:
Microgel A:N-isopropylacrylamide monomer, montmorillonite, dimethylene bisacrylamide and water addition are placed with magnetic force
The flask of stirrer, deoxygenation are added initiator potassium persulfate, react 5 hours at 30 DEG C, magnetic stirring speed 200rpm；Instead
After answering, continue at 50rpm, 20 DEG C stirring 2 hours to get.Wherein, N-isopropylacrylamide monomer, montmorillonite, two Asias
Bisacrylamide, water ingredient proportion be 1mol：0.2g：0.002mol：50ml.
Preparation example 5:
Microgel B:The flask for being placed with magnetic stir bar is added in N-isopropylacrylamide monomer, montmorillonite water, and deoxygenation is added
Initiator potassium persulfate is reacted 5 hours, magnetic stirring speed 200rpm at 30 DEG C；After reaction, at 50rpm, 20 DEG C
Continue stirring 2 hours to get.Wherein, N-isopropylacrylamide monomer, montmorillonite, water ingredient proportion be 1mol：0.6g：
50ml。
Preparation example 6:
Microgel C:N-isopropylacrylamide monomer, dimethylene bisacrylamide and water addition are placed with magnetic stir bar
Flask, deoxygenation are added initiator potassium persulfate, react 5 hours at 30 DEG C, magnetic stirring speed 200rpm；After reaction,
Continue at 50rpm, 20 DEG C stirring 2 hours to get.Wherein, N-isopropylacrylamide monomer, dimethylene bisacrylamide,
The ingredient proportion of water is 1mol：0.01mol：50ml.
Hydrophilic polyurethane foam
Hydrophilic polyurethane foam is prepared using the data of CN103221074A embodiment part table 1, frostproof froth n
Surface has 20 μm of effects (controlling by foam substrate) of roughness.
Embodiment 1
By 100 parts by weight of acrylic acid esters polymer A, 20 parts by weight isopropyl acrylamide microgel A, 4 parts by weight heat
Separation factor sodium bicarbonate, 1 parts by weight water-soluble starch and 15 parts by weight terpene resins are uniformly mixed；Said mixture is coated
In thick 50 μm of hydrophilic polyurethane foam layer, two sides adhesive phase thickness is identical, and respectively 80 μm, adhesive layer surface adherency
Stripping film.
Embodiment 2
By 100 parts by weight of acrylic acid esters polymer A, 20 parts by weight isopropyl acrylamide microgel A, 4 parts by weight heat
Separation factor sodium bicarbonate, 1 parts by weight water-soluble starch and 15 parts by weight terpene resins are uniformly mixed；Said mixture is coated
In thick 120 μm of hydrophilic polyurethane foam layer, two sides adhesive phase thickness is identical, and respectively 80 μm, adhesive layer surface is viscous
Attached stripping film.
Embodiment 3
By 100 parts by weight of acrylic acid esters polymer A, 20 parts by weight isopropyl acrylamide microgel A, 4 parts by weight heat
Separation factor sodium bicarbonate, 1 parts by weight water-soluble starch and 15 parts by weight terpene resins are uniformly mixed；Said mixture is coated
In thick 10 μm of hydrophilic polyurethane foam layer, two sides adhesive phase thickness is identical, and respectively 80 μm, adhesive layer surface adherency
Stripping film.
Embodiment 4
By 100 parts by weight of acrylic acid esters polymer A, 20 parts by weight isopropyl acrylamide microgel B, 4 parts by weight heat
Separation factor sodium bicarbonate, 1 parts by weight water-soluble starch and 15 parts by weight terpene resins are uniformly mixed；Said mixture is coated
In thick 50 μm of hydrophilic polyurethane foam layer, two sides adhesive phase thickness is identical, and respectively 80 μm, adhesive layer surface adherency
Stripping film.
Embodiment 5
By 100 parts by weight of acrylic acid esters polymer A, 20 parts by weight isopropyl acrylamide microgel C, 4 parts by weight heat
Separation factor sodium bicarbonate, 1 parts by weight water-soluble starch and 15 parts by weight terpene resins are uniformly mixed；Said mixture is coated
In thick 50 μm of hydrophilic polyurethane foam layer, two sides adhesive phase thickness is identical, and respectively 80 μm, adhesive layer surface adherency
Stripping film.
Embodiment 6
Adhesive in embodiment 1, which is substituted for group, to be become：100 parts by weight of acrylic acid esters polymer A, 20 parts by weight isopropyls
Base acrylamide microgel A, 1 parts by weight water-soluble starch and 15 parts by weight terpene resins.
Embodiment 7
Adhesive in embodiment 1, which is substituted for group, to be become：100 parts by weight of acrylic acid esters polymer A, 20 parts by weight are different
The hot separation factor sodium bicarbonate of propylacrylamide microgel A, 6 parts by weight and 15 parts by weight terpene resins.
Comparative example 1
By 100 parts by weight of acrylic acid esters polymer A, 20 parts by weight isopropyl acrylamide microgel C, 4 parts by weight heat
Separation factor sodium bicarbonate, 1 parts by weight water-soluble starch and 15 parts by weight terpene resins are uniformly mixed, and are formed on release substrate
The adhesive phase that 200 μm of thickness, two sides adhere to stripping film respectively.
Comparative example 2
By 100 parts by weight of acrylic acid esters polymers, 20 parts by weight isopropyl acrylamide microgel A, 4 parts by weight hot soarfings
It is uniformly mixed from factor sodium bicarbonate, 1 parts by weight water-soluble starch and 15 parts by weight terpene resins；Said mixture is coated on
Thick 40 μm of porous plastic substrates (40 μm of aperture, 20 holes of hole density/mm2), two sides adhesive phase thickness is identical, respectively 80 μ
M, adhesive layer surface adhere to stripping film.
Comparative example 3
By 100 parts by weight of acrylic acid esters polymer A, 20 parts by weight isopropyl acrylamide microgel A, 4 parts by weight heat
Separation factor sodium bicarbonate, 1 parts by weight water-soluble starch and 15 parts by weight terpene resins are uniformly mixed；Said mixture is coated
In thick 50 μm of hydrophilic polyurethane foam layer, two sides adhesive phase thickness is identical, and respectively 230 μm, adhesive layer surface is viscous
Attached stripping film.
Comparative example 4
By 100 parts by weight of acrylic acid esters polymer B, 20 parts by weight isopropyl acrylamide microgel A, 4 parts by weight heat
Separation factor sodium bicarbonate, 1 parts by weight water-soluble starch and 15 parts by weight terpene resins are uniformly mixed；Said mixture is coated
In thick 50 μm of hydrophilic polyurethane foam layer, two sides adhesive phase thickness is identical, and respectively 80 μm, adhesive layer surface adherency
Stripping film.
Comparative example 5
By 100 parts by weight of acrylic acid esters polymer C, 20 parts by weight isopropyl acrylamide microgel A, 4 parts by weight heat
Separation factor sodium bicarbonate, 1 parts by weight water-soluble starch and 15 parts by weight terpene resins are uniformly mixed；Said mixture is coated
In thick 50 μm of hydrophilic polyurethane foam layer, two sides adhesive phase thickness is identical, and respectively 80 μm, adhesive layer surface adherency
Stripping film.
Test method：
(1) Initial adhesion
Sample is prepared according to 0237 8.2.3 method of JIS Z.The bonding sheet of embodiment and comparative example is adhered to by pressure roller
On a glass, bonding sheet is prepared into test sample having a size of 2cm*0.25cm.Sample is tested into peel strength at room temperature,
180 ° of peel strengths are tested with 300mm/min detachment rate.
(2) hot peel strength
Sample is prepared according to initial adhesion force test method, 3min in 35 DEG C and 60 DEG C of hot water is immersed respectively, takes out and wipe
Peel strength test is carried out after dry rapidly, tests 180 ° of peel strengths with 300mm/min detachment rate.
(3) residual condition is observed
Hot soarfing is observed and (observed under magnifying glass × 50 times) from sample after rear test, does not remain and is denoted as "None", it is few
Amount residual is denoted as " a small amount of ", it can be observed that obvious residual is denoted as " having ".
(4) detachment rate
It is adhered to soda-lime glass piece using the bonding sheet two sides of embodiment and comparative example, is dipped in 35 DEG C of water, two panels is recorded
The time of soda-lime glass piece separation.
The bonding sheet of embodiment 1-7 and comparative example 1-5 prepare sample respectively and are tested (1)-(4), are tested respectively,
Experimental data is averaged in triplicate.
By upper table data it can be found that quickly exfoliated be fixed temporarily in bonding sheet by bonding chip architecture and bonding
The selection of agent composition, obtains the bonding sheet with good noresidue, good thermally strippable and quick detachment rate, plurality of
Factor has important influence to the present invention.Such as the selection of water imbibition polyurethane foam substrate, acrylate polymer, micro- solidifying
The selection of glue, separation factor, water soluble starch and each thickness degree all has an impact to final thermally strippable and residual.This hair
Bright designed structure has not seen relevant report in the art, belongs to and improves the novelty of the present technology of inventor, in state
It is inside and outside all in leading position.
Claims (10)
1. a kind of quickly exfoliated be fixed temporarily with bonding sheet, it is characterised in that：Water imbibition substrate and be located at the water imbibition base
The adhesive phase of material two sides, described adhesive layer are that easy-stripping type adhesive is prepared, and the water imbibition substrate is water imbibition
Polyurethane foam, surface roughness Ra is between 5-25 microns.
2. according to claim 1 quickly exfoliated be fixed temporarily with bonding sheet, it is characterised in that：The water imbibition substrate
With a thickness of 20-100 μm, the adhesive phase thickness of the substrate two sides is 50-200 μm.
3. according to claim 1 or 2 quickly exfoliated be fixed temporarily with bonding sheet, it is characterised in that：It is described easily peelable
Type adhesive includes acrylic polymer, isopropyl acrylamide microgel, hot separation factor, starch and other auxiliary agents.
4. according to claim 1 to 3 quickly exfoliated be fixed temporarily with bonding sheet, it is characterised in that：The easy-stripping type
Adhesive includes 100 parts by weight of acrylic acid esters polymers, 10-25 parts by weight isopropyl acrylamide microgel, 1-5 parts by weight
Hot separation factor, 1-2 weight starch and 1-20 parts by weight other auxiliary agents.
5. according to claim 1 to 3 quickly exfoliated be fixed temporarily with bonding sheet, it is characterised in that：The acrylate
Quasi polymer is by including the double acryloyls of acrylic acid, hydroxy-ethyl acrylate, methyl acrylate, urethane acrylate and dimethylene
Amine, molar ratio 2-3:1-1.5:1:0.01-0.03：0.005-0.05.
6. according to claim 1 to 3 quickly exfoliated be fixed temporarily with bonding sheet, it is characterised in that：The isopropyl third
Acrylamide microgel is obtained by N-isopropylacrylamide monomer, montmorillonite, dimethylene bisacrylamide, water free radical polymerization
, said components ratio is 1mol：0.2g：0.002mol：50ml.
7. quick described in -6 according to claim 1 exfoliated be fixed temporarily with bonding sheet, it is characterised in that：The isopropyl third
The flask for being placed with magnetic stir bar, deoxygenation is added in acrylamide monomer, montmorillonite, dimethylene bisacrylamide and water, and addition is drawn
Agent potassium peroxydisulfate is sent out, is reacted 5 hours at 30 DEG C, magnetic stirring speed 200rpm；After reaction, at 50rpm, 20 DEG C after
Continuous stirring 2 hours to get.
8. according to claim 1 to 3 quickly exfoliated be fixed temporarily with bonding sheet, it is characterised in that：The separation factor
For sodium bicarbonate, the starch is water soluble starch, and the auxiliary agent is tackifying resin.
9. according to claim 8 quickly exfoliated be fixed temporarily with bonding sheet, it is characterised in that：The tackifying resin is
Rosin resin or terpene resin.
10. preparing any quickly exfoliated method being fixed temporarily with bonding sheet of claim 1-9, it is characterised in that：It will
Easy-stripping type adhesive is respectively coated in water imbibition substrate two sides, and adhesive surface adheres to stripping film respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810733606.4A CN108913052A (en) | 2018-07-05 | 2018-07-05 | It is a kind of quickly exfoliated to be fixed temporarily bonding sheet and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810733606.4A CN108913052A (en) | 2018-07-05 | 2018-07-05 | It is a kind of quickly exfoliated to be fixed temporarily bonding sheet and preparation method thereof |
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| CN108913052A true CN108913052A (en) | 2018-11-30 |
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| CN201810733606.4A Pending CN108913052A (en) | 2018-07-05 | 2018-07-05 | It is a kind of quickly exfoliated to be fixed temporarily bonding sheet and preparation method thereof |
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Cited By (1)
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| EP3954667A4 (en) * | 2019-04-09 | 2023-01-04 | Nippon Shokubai Co., Ltd. | Additive for cement, cement admixture, cement composition, molded article, and strength improvement method for molded article |
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Application publication date: 20181130 |