CN107573862A - A kind of adhesive resin composition and self-adhering protective film - Google Patents
A kind of adhesive resin composition and self-adhering protective film Download PDFInfo
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- CN107573862A CN107573862A CN201710717088.2A CN201710717088A CN107573862A CN 107573862 A CN107573862 A CN 107573862A CN 201710717088 A CN201710717088 A CN 201710717088A CN 107573862 A CN107573862 A CN 107573862A
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- resin composition
- adhesive resin
- protective film
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Abstract
The invention discloses a kind of adhesive resin composition and self-adhering protective film; the adhesive resin composition includes following components; its weight percent content is respectively styrenic elastomer 50~80%; tackifying resin 9~40%; polyolefin elastomer 9~35%, organically-modified dimethyl silicone polymer 0.1~5%.Above-mentioned adhesive resin composition can be used for manufacturing self-adhering protective film; the self-adhering protective film has and has stronger bonding force to coated body; also especially there is sufficient bonding force in the coated body of prism structure to surface; and the adhesive resin composition is not easy to separate out, possesses the advantages of being not easy to be transferred on coated body.In addition, the self-adhering protective film of the present invention is more easy to uncoiling when being taken care of with reel state.
Description
Technical field
The invention belongs to protect technical field of membrane, and in particular to a kind of adhesive resin composition and self-adhering protective film.
Background technology
In the processing of synthetic resin board, metallic plate, cladding coated steel plate etc. and transportation, in order to prevent spot from adhering to
Or scratch the surface of these products, it usually needs use surface protection film.Especially, the ultrathin display such as liquid crystal display includes
Multiple optical film or optical resin plates of synthetic resin are formed, and these optical films or optical resin plate strongly subtract due to needing
The shortcomings of few optical skew, thus in order to prevent the surface blot or scuffing of the said goods when processing and carrying, widely use table
Surface protective film.
It is using the one side in the substrate layer formed by thermoplastic resin that adhesive layer is laminated as such surface protection film
The film that integration forms, bonded when in use by the adhesive layer and adherend surface, be stripped removing when not needed, because
This, it is desirable to there is the appropriate cohesive force for being used for being attached to affixed object surface, while be easily peeled off when peeling off, and do not pollute
Affixed object surface etc..In addition, these surface protection films are generally rolled into the coiling body in roll face, these coiling bodies have asks as follows
Topic：Because substrate layer and tack coat are pressed by stronger take-up force, thus adhesion is easily produced, when use unreels, it is difficult to grasp
Make.The brightness enhancement film surface of the higher prism structure of tack requirements is especially bonded, uncoiling is increasingly difficult.
CN102292655A proposes to add saturated fatty acid diamides on top layer can also solve asking for uncoiling power to a certain degree
Topic.But its improvement efficiency will be less than fluorine class, and after long term high temperature storage, with its migration precipitation, influence whether to glue
Tie the cohesive force of layer.
CN102834263A proposes to add fluorochemical on top layer can also solve the problems, such as uncoiling to a certain degree.But
At least flaw：1st, fluorine class material is not tolerant in curtain coating extrusion processing conditions, that is, is equal to inorganic material presence, thus increases
The replacing frequency of fondant filter is added, so as to add production cost；2nd, the fluorine material of skin surface is floated over, is had by tack coat
Cling and be transferred to tie layer surface, so as to be transferred to the risk above affixed object again.
As seen from the above, prior art be typically to the layer of tack coat opposite side, i.e., top layer implement coated release or
Release processing, to solve the problems, such as to protect film winding power, but such processing causes complex procedures, and then yield rate reduces, into
This raising.And the material used in top layer easily separates out, the cohesive force of tack coat can be not only influenceed, is also easy to be transferred on affixed object.
The content of the invention
It is an object of the invention to provide a kind of adhesive resin composition and self-adhering protective film, above-mentioned resin of binding property
Composition can be used for manufacturing self-adhering protective film, and the self-adhering protective film has stronger bonding force to coated body, especially to table
Face also has sufficient bonding force in the coated body of prism structure, and the adhesive resin composition is not easy to separate out, and possesses not
The advantages of being easily transferred on coated body.In addition, the self-adhering protective film of the present invention is more easy to uncoiling when being taken care of with reel state.
To achieve these goals, the invention provides a kind of adhesive resin composition, including following components, its weight
Degree is respectively：
Further, the structural formula of organically-modified dimethyl silicone polymer isWherein, n
For 300~400 integer, X is any of ester group, aromatic radical or epoxy radicals, preferably ester group or aromatic radical.
Further, styrenic elastomer is copolymer or their hydrogenation of styrene polymer and olefin polymer
Thing.
Further, the weight percent content of styrene is 10~30% in styrenic elastomer.
Further, tackifying resin is Petropols and/or terpene resin.
Further, Petropols are C9 aromatic petroleum resins, and softening point is 90~140 DEG C, it is preferable that C9 aromatic series
The softening point of Petropols is 110~140 DEG C.
Further, the softening point of terpene resin is 110~140 DEG C, and terpene resin is the terpene resin of hydrogenation phenolic aldehyde.
Further, polyolefin elastomer is ethene and propylene, or ethene and butadiene, or ethene with and hexadiene it is embedding
Section or random copolymer；Preferably, polyolefin elastomer is the block or random copolymer of ethene and propylene.
In addition, to achieve the above object, the invention provides a kind of self-adhering protective film, including tack coat, intermediate layer and
Top layer, the material of the tack coat include above-mentioned adhesive resin composition.
Further, after tack coat is granulated by above-mentioned adhesive resin composition by Double-screw blending, as one
Individual one-component is cast extrusion and formed in an extruder.
Compared with prior art, the present invention has the advantages that：
Self-adhering protective film prepared by the adhesive resin composition of the present invention has stronger bonding force to coated body, especially
It is that also there is sufficient bonding force in the coated body of prism structure to surface, and the adhesive resin composition is not easy to separate out,
Possesses the advantages of being not easy to be transferred on coated body.In addition, more legibility when the self-adhering protective film of the present invention is taken care of with reel state
Volume.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below by the skill in the embodiment of the present invention
Art scheme is clearly and completely described, it is clear that and described embodiment is only the embodiment of a present invention part, without
It is whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not before creative work is made
The every other embodiment obtained is put, should all belong to the scope of protection of the invention.
It should be noted that term " first ", " second " in description and claims of this specification, " on ",
" under " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so make
Data can exchange in the appropriate case, so as to embodiments of the invention described herein.In addition, term " comprising " and
" having " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing series of steps or unit
Process, method, system, product or equipment be not necessarily limited to those steps clearly listed or unit, but may include do not have
It is clearly listing or for the intrinsic other steps of these processes, method, product or equipment or unit.
From background technology, existing self-adhering protective film is typically the layer to tack coat opposite side, i.e. top layer is real
Coated release or release processing are applied, to solve the problems, such as diaphragm uncoiling power, but such processing causes complex procedures, enters to form
Product rate reduces, and cost improves；And the material used in top layer easily separates out, the cohesive force of tack coat can be not only influenceed, is also easy to transfer
Onto affixed object.The present inventor is studied regarding to the issue above, it is proposed that a kind of adhesive resin composition, including
Following components, its weight percent content are respectively：Styrenic elastomer 50~80%；Tackifying resin 9~40%；Polyolefin bullet
Property body 9~35%；Organically-modified dimethyl silicone polymer 0.1~5%.The adhesive resin composition of aforementioned proportion for
During self-adhering protective film, have has stronger bonding force to coated body, especially also has in the coated body of prism structure to surface
Easy uncoiling when having the bonding force of abundance, and diaphragm being taken care of with reel state.Meanwhile the adhesive resin composition is not easy
Separate out, possess the advantages of being not easy to be transferred on coated body.
The weight percent content of organically-modified dimethyl silicone polymer is 0.1 in adhesive resin composition of the present invention
~5%.Self-adhesive protective film adhesive layer can be effectively improved by adding the organically-modified dimethyl silicone polymer of above-mentioned dosage
Uncoiling power.
The structural formula of above-mentioned organically-modified dimethyl silicone polymer isWherein, n be 300~
400 integer, X are any of ester group, aromatic radical or epoxy radicals, preferably ester group or aromatic radical.By using ester group, fragrance
Base or epoxy radicals substitute the methyl as end group, and end group X just and with the styrene in styrenic elastomer has compatible and can
With the effect of looping, therefore with the effect for not being transferred to affixed object up.Above-mentioned organically-modified dimethyl silicone polymer
Can be to win the TEGOMER2342 for creating Degussa, 2650 etc..
In order to improve bonding force, in above-mentioned adhesive resin composition the percentage by weight of styrenic elastomer for 50~
80%, if the percentage by weight of styrenic elastomer is less than 50%, bonding force reduces, it is difficult to necessary bonding force is obtained, if
Percentage by weight is more than 80%, then bonding force is too high, can influence follow-up uncoiling ability.
The styrenic elastomer of the present invention is styrene polymer and the copolymer or their hydride of olefin polymer.
For example, can be s-B-S, styrene-isoprene-phenylethene, styrene-ethylene/butene
The A-B-A type block polymers such as thing-styrene；Styrene-butadiene, styrene-isoprene, styrene-ethylene/butylene are common
The A-B type block polymers such as polymers；The polystyrene such as styrene-butadiene random copolymer and their hydride.
In order to improve heat resistance and weatherability, the styrene series elastomer in the present invention is the above-mentioned benzene second through over hydrogenation
The hydride of alkene based elastomers, refer to make the double bond from conjugated diene of above-mentioned styrene series elastomer by part using hydrogenation
Or it is fully saturated after material, such as can be Ke Teng companies model G1657 styrene series elastomer hydride.
The weight percent content of styrene in above-mentioned styrenic elastomer is 10~30%, if less than 10%, then
Granulation when resin makes is difficult, and if greater than 30%, then bonding force reduces, it is difficult to obtains necessary bonding force.
In adhesive resin composition of the present invention the weight percent content of tackifying resin be 9~40%, preferably 15~
40%.If tackifying resin weight percent content is less than 9%, the bonding force that adhesive layer is also helpless to even if compounding changes, nothing
Method obtains required bonding force；If content is higher than 40%, the molecular weight of tackifying resin is low, therefore, melt bonded to become very low,
It is not only difficult with base material layer stackup when carrying out coextrusion film, and adhesive layer stickness, film exist from the extractable of web-like
It is difficult to improved tendency.
Above-mentioned tackifying resin can select Petropols common in the art, terpene resin etc..Petropols can be
C9 aromatic petroleum resins, softening point is at 90~140 DEG C, preferably 110~140 DEG C.Terpene resin softening point is 110~140
DEG C, further, terpene resin is the terpene resin of hydrogenation phenolic aldehyde, such as pacifies former chemical model U130 terpene resin.
The weight percent content of polyolefin elastomer is 9~35% in adhesive resin composition of the present invention, is preferably
10~25%.Said polyolefins elastomer can be ethene and propylene, or ethene and butadiene, or ethene with and hexadiene it is embedding
Section or random copolymer.Preferably, polyolefin elastomer is the block or random copolymer of ethene and propylene.It is for example, commercially available
The 3980FL of ExxonMobil companies.
In addition, present invention also offers a kind of self-adhering protective film, including tack coat, intermediate layer and top layer, the bonding
The material of layer includes above-mentioned adhesive resin composition.Even if the self-adhering protective film of the present invention is to surface in prism structure
Affixed object also has appropriate adhesion characteristic, and is advantageous to the uncoiling during use.
The self-adhering protective film of the present invention can be formed the complex that 3 laminar flows prolong extrusion by tack coat, intermediate layer and top layer
State.Intermediate layer is sym-propene polymer resin, is made of extruder extrusion.Tack coat passes through double spiral shells using adhesive resin composition
After bar blending is granulated, realized as a single component in curtain coating is extruded, it is more uniform so to reach viscosity distribution,
And uncoiling improvement component effect is more notable.Top layer can use propylene-ethylene block copolymer and ldpe resin
Melting extrusion is made.
The self-adhering protective film of the present invention can also be respectively coated resin of binding property on intermediate layer two sides using coating method
Composition and release liquid form tack coat and top layer.
Below with reference to embodiment and comparative example, beneficial effects of the present invention are further illustrated.Obviously, described implementation
Example only part of the embodiment of the present invention, rather than whole embodiments.It is common based on the embodiment in the present invention, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
Embodiment 1
Adhesive resin composition be weight percentage for 50% styrenic elastomer G1657 (Ke Teng companies), weight
The tackifying resin U130 (the former chemistry of peace) that percentage is 40%, percentage by weight is 9% polyolefin elastomer 3980FL
The organically-modified dimethyl silicone polymer TEGOMER2342 that (ExxonMobil companies) and percentage by weight are 1% (wins wound
Degussa).
The self-adhering protective film of the present invention is formed the complex morphological that 3 laminar flows prolong extrusion by tack coat, intermediate layer and top layer, its
In：Intermediate layer is sym-propene polymer resin, is made of extruder extrusion；Top layer is using propylene-ethylene block copolymer and low close
Degree polyvinyl resin melting extrusion is made；After tack coat is granulated by above-mentioned resin of binding property mixture by twin-screw blending, make
It is extruded into for a single component in curtain coating.
Embodiment 2
Adhesive resin composition be weight percentage for 80% styrenic elastomer G1657 (Ke Teng companies), weight
The tackifying resin U130 (the former chemistry of peace) that percentage is 9%, percentage by weight is 10.9% polyolefin elastomer 3980
The organically-modified dimethyl silicone polymer TEGOMER2342 that (ExxonMobil companies) and percentage by weight are 0.1% (wins
Create Degussa).
The self-adhering protective film of the present invention is formed the complex morphological that 3 laminar flows prolong extrusion by tack coat, intermediate layer and top layer, its
In：Intermediate layer is sym-propene polymer resin, is made of extruder extrusion；Top layer is using propylene-ethylene block copolymer and low close
Degree polyvinyl resin melting extrusion is made；After tack coat is granulated by above-mentioned resin of binding property mixture by twin-screw blending, make
It is extruded into for a single component in curtain coating.
Embodiment 3
Adhesive resin composition be weight percentage for 50% styrenic elastomer G1657 (Ke Teng companies), weight
The tackifying resin U130 (the former chemistry of peace) that percentage is 14.9%, percentage by weight is 35% polyolefin elastomer 3980FL
(ExxonMobil) and percentage by weight (wins wound moral for 0.1% organically-modified dimethyl silicone polymer TEGOMER2342
Gu match).
The self-adhering protective film of the present invention is formed the complex morphological that 3 laminar flows prolong extrusion by tack coat, intermediate layer and top layer, its
In：Intermediate layer is sym-propene polymer resin, is made of extruder extrusion；Top layer is using propylene-ethylene block copolymer and low close
Degree polyvinyl resin melting extrusion is made；After tack coat is granulated by above-mentioned resin of binding property mixture by twin-screw blending, make
It is extruded into for a single component in curtain coating.
Embodiment 4
Adhesive resin composition be weight percentage for 70% styrenic elastomer G1657 (Ke Teng companies), weight
The tackifying resin U130 (the former chemistry of peace) that percentage is 15%, percentage by weight is 10% polyolefin elastomer 3980
(ExxonMobil) and percentage by weight (wins wound moral to consolidate for 5% organically-modified dimethyl silicone polymer TEGOMER2342
Match).
The self-adhering protective film of the present invention is formed the complex morphological that 3 laminar flows prolong extrusion by tack coat, intermediate layer and top layer, its
In：Intermediate layer is sym-propene polymer resin, is made of extruder extrusion；Top layer is using propylene-ethylene block copolymer and low close
Degree polyvinyl resin melting extrusion is made；After tack coat is granulated by above-mentioned resin of binding property mixture by twin-screw blending, make
It is extruded into for a single component in curtain coating.
Embodiment 5
Adhesive resin composition be weight percentage for 70% styrenic elastomer G1657 (Ke Teng companies), weight
The tackifying resin U130 (the former chemistry of peace) that percentage is 17%, percentage by weight is 10% polyolefin elastomer 3980
(ExxonMobil) and percentage by weight (wins wound moral to consolidate for 3% organically-modified dimethyl silicone polymer TEGOMER2342
Match).
The self-adhering protective film of the present invention is formed the complex morphological that 3 laminar flows prolong extrusion by tack coat, intermediate layer and top layer, its
In：Intermediate layer is sym-propene polymer resin, is made of extruder extrusion；Top layer is using propylene-ethylene block copolymer and low close
Degree polyvinyl resin melting extrusion is made；After tack coat is granulated by above-mentioned resin of binding property mixture by twin-screw blending, make
It is extruded into for a single component in curtain coating.
Embodiment 6
Adhesive resin composition be weight percentage for 70% styrenic elastomer G1657 (Ke Teng companies), weight
The tackifying resin U130 (the former chemistry of peace) that percentage is 17%, percentage by weight is 10% polyolefin elastomer 3980
(ExxonMobil) and percentage by weight (wins wound moral to consolidate for 3% organically-modified dimethyl silicone polymer TEGOMER2650
Match).
The self-adhering protective film of the present invention is formed the complex morphological that 3 laminar flows prolong extrusion by tack coat, intermediate layer and top layer, its
In：Intermediate layer is sym-propene polymer resin, is made of extruder extrusion；Top layer is using propylene-ethylene block copolymer and low close
Degree polyvinyl resin melting extrusion is made；After tack coat is granulated by above-mentioned resin of binding property mixture by twin-screw blending, make
It is extruded into for a single component in curtain coating.
Comparative example
Difference with embodiment 1 is：Organically-modified dimethyl silicone polymer, table are free of in adhesive resin composition
Layer addition fluorine resin.
The component of adhesive resin composition and weight percent content are as shown in the table in each embodiment：
| G1657 | U130 | 3980 | 2342 | 2650 | |
| Embodiment 1 | 50% | 40% | 9% | 1% | |
| Embodiment 2 | 80% | 9% | 10.9% | 0.1% | |
| Embodiment 3 | 50% | 14.9% | 35% | 0.1% | |
| Embodiment 4 | 70% | 15% | 10% | 5% | |
| Embodiment 5 | 70% | 17% | 10% | 3% | |
| Embodiment 6 | 70% | 17% | 10% | 3% |
The bonding force of prism structure：
Gained self-adhering protective film is cut into 25mm strips, be fitted on prismatic lens and with 2kg rubber rollers with
The speed of 300mm/ minutes is pressed 3 times back and forth, and 20min is placed under the conditions of 23 DEG C of room temperature, according to GB/T 2792-1998, is used
Electronic stripping tester (KJ-1065A, section are good for detecting instrument) tests 180 degree peel strength with 300mm/ minutes, thus obtains prism knot
The bonding force of structure.
Uncoiling power：
Gained self-adhering protective film is fitted on prismatic lens first, and 25mm strip diaphragms are fitted in diaphragm
The back side, uncoiling power is obtained with the bonding force test method of above-mentioned prism structure.
Transfer checking：
Gained self-adhering protective film is fitted on prismatic lens, is pressed one time with 5kg pressure rollers, is then put in 50 DEG C of baking ovens
7 day time is put, transfer situation is observed after taking-up under light, does not transfer situation and be set to " ◎ ", has slight transfer to be set to "○",
There is obvious transfer to be set to "×".
Test result is as shown in the table：
As can be seen from the above results, embodiment 3 is although slightly lower to the bonding force of prism structure, but its uncoiling power is lower,
Uncoiling performance is more excellent, and from other embodiment and comparative example, self-adhering-type prepared by adhesive resin composition of the invention is protected
Cuticula has sufficient bonding force to surface in the coated body of prism structure, and adhesive resin composition is not easy to be transferred to coated body
On, and easy uncoiling when the self-adhering protective film is taken care of with reel state.
It should be noted that embodiment is only the explanation to technical solution of the present invention, should not be managed
Solve as the restriction to technical solution of the present invention, any only to make what is locally changed using the substantive content of the invention of the present invention, Reng Yingluo
Enter in protection scope of the present invention.
Claims (10)
1. a kind of adhesive resin composition, it is characterised in that including following components, its weight percent content is respectively：
2. adhesive resin composition according to claim 1, it is characterised in that the organically-modified poly dimethyl silicon
The structural formula of oxygen alkane is
Wherein, n is 300~400 integer, and X is any of ester group, aromatic radical or epoxy radicals, preferably ester group or fragrance
Base.
3. adhesive resin composition according to claim 1, it is characterised in that the styrenic elastomer is styrene
The copolymer or their hydride of polymer and olefin polymer.
4. adhesive resin composition according to claim 3, it is characterised in that styrene in the styrenic elastomer
Weight percent content be 10~30%.
5. adhesive resin composition according to claim 1, it is characterised in that the tackifying resin is Petropols
And/or terpene resin.
6. adhesive resin composition according to claim 5, it is characterised in that the Petropols are C9 aromatic series stones
Oleoresin, softening point are 90~140 DEG C, it is preferable that the softening point of the C9 aromatic petroleum resins is 110~140 DEG C.
7. adhesive resin composition according to claim 5, it is characterised in that the softening point of the terpene resin is
110~140 DEG C, it is preferable that the terpene resin is the terpene resin of hydrogenation phenolic aldehyde.
8. adhesive resin composition according to claim 1, it is characterised in that the polyolefin elastomer be ethene with
Propylene, or ethene and butadiene, or ethene with and hexadiene block or random copolymer；Preferably, the polyolefin elastic
Body is the block or random copolymer of ethene and propylene.
9. a kind of self-adhering protective film, including tack coat, intermediate layer and top layer, it is characterised in that the material bag of the tack coat
Include the adhesive resin composition described in any one of claim 1~8.
10. self-adhering protective film according to claim 9, it is characterised in that the tack coat is by the resin of binding property
After composition is granulated by Double-screw blending, extrusion is cast in an extruder as an one-component and is formed.
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| CN201710717088.2A CN107573862B (en) | 2017-08-21 | 2017-08-21 | Adhesive resin composition and self-adhesive protective film |
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| CN201710717088.2A CN107573862B (en) | 2017-08-21 | 2017-08-21 | Adhesive resin composition and self-adhesive protective film |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111253879A (en) * | 2020-02-17 | 2020-06-09 | 佛山市顺元塑胶制品有限公司 | Low-unwinding-force polyethylene low-viscosity protective film and preparation method thereof |
| CN114507493A (en) * | 2020-11-16 | 2022-05-17 | 宁波激智科技股份有限公司 | Adhesive resin composition, protective film and preparation method thereof |
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| CN103261352A (en) * | 2010-12-01 | 2013-08-21 | 东洋纺株式会社 | Pressure-sensitive adhesive resin composition and pressure-sensitive adhesive film |
| CN103320031A (en) * | 2012-03-19 | 2013-09-25 | 日东电工株式会社 | Surface protection sheet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103261352A (en) * | 2010-12-01 | 2013-08-21 | 东洋纺株式会社 | Pressure-sensitive adhesive resin composition and pressure-sensitive adhesive film |
| CN103320031A (en) * | 2012-03-19 | 2013-09-25 | 日东电工株式会社 | Surface protection sheet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111253879A (en) * | 2020-02-17 | 2020-06-09 | 佛山市顺元塑胶制品有限公司 | Low-unwinding-force polyethylene low-viscosity protective film and preparation method thereof |
| CN111253879B (en) * | 2020-02-17 | 2022-02-11 | 佛山市顺元塑胶制品有限公司 | Low-unwinding-force polyethylene low-viscosity protective film and preparation method thereof |
| CN114507493A (en) * | 2020-11-16 | 2022-05-17 | 宁波激智科技股份有限公司 | Adhesive resin composition, protective film and preparation method thereof |
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