CN102994001A - Waterproof double sticky tape - Google Patents
Waterproof double sticky tape Download PDFInfo
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- CN102994001A CN102994001A CN2012105803360A CN201210580336A CN102994001A CN 102994001 A CN102994001 A CN 102994001A CN 2012105803360 A CN2012105803360 A CN 2012105803360A CN 201210580336 A CN201210580336 A CN 201210580336A CN 102994001 A CN102994001 A CN 102994001A
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Abstract
The invention relates to a waterproof double sticky tape. The waterproof double sticky tape comprises a foamed base body, a first mucilage glue layer, a second mucilage glue layer, and a released paper, wherein the first mucilage glue layer and the second mucilage glue layer are coated on the two surfaces of the foamed base body; the released paper is compounded on the first mucilage glue layer; the waterproof double sticky tape is characterized in that the foamed base body is an IXPE (Polyethylene Foam), has thickness of 20 microns to 1000 microns, and a foaming ratio of twice to five times; each of the first mucilage glue layer and the second first mucilage glue layer comprises the following components in parts by weight: 100 parts of acrylate adhesive, 5-40 parts of resin, 0.1-3.5 parts of silane coupling agent and 0.1-2.0 part of hardening agent. Compared with the prior art, the waterproof double sticky tape provided by the invention has excellent fitness and good water resistance, and is especially suitable for electronic apparatuses, large screens and thin products.
Description
Technical field
The present invention relates to a kind of waterproof double sticky tape.
Background technology
In some electronic product components, with the representative that fits into of the protection panel of display part and housing, various parts, double-sided adhesive tape all will be used in the fixing place of module.In order to ensure the superiority of competing in market, all pursue diversified function all the time, especially more and more higher to the requirement of water-proof function.
As being used for the fixedly double-sided adhesive tape of usefulness of electronic device components; all be to be that matrix reaches fixed effect with non-woven fabrics or PET in the past; this double sided adhesive tape has good bonding force; the impact of the excellence of the element falling that impact causes in the time of can preventing owing to object fall; but for protecting the bonding of panel or housing; rigidly connecting when closing, because two adhesion thin slices are difficult to obtain completely driving fit, will soak in small space sometimes.
Double-sided adhesive tape as the adaptation excellence, later stage uses with foam and solves the bad problem of water-repellancy as matrix, although just can engage aptly between short-term between parts, but, separately only by the words of foam as matrix, be difficult to restrain extremely small space at the interface of parts and adhering agent layer, water can enlarge the water route in this position, thereby is difficult to realize requiring higher water-repellancy.Particularly in present electron device purposes, the product of giant-screen, slimming is more and more, in the situation of pursuing stricturization to the jointing tape width, slimming, is difficult to give sufficient water-repellancy.
Summary of the invention
Technical problem to be solved by this invention is that the present situation for prior art provides a kind of waterproof double sticky tape with excellent adaptation.
The present invention solves the problems of the technologies described above the technical scheme that adopts: this waterproof double sticky tape, comprise the foam matrix, be coated on respectively two lip-deep the first adhesive-layers and the second adhesive-layers of described foam matrix and be compounded in interleaving paper on the first adhesive-layer; It is characterized in that:
Described foam matrix is IXPE, and the thickness of foam matrix is 20～1000 μ m, and expansion ratio is 2～5 times;
The weight of described the first adhesive-layer and described the second adhesive-layer is composed as follows:
Wherein, described resin is selected from least a in terpenes tackifying resin, phenolic tackifying resin, rosin based tackifying resin and the petroleum-type tackifying resin;
Described stiffening agent is selected from isocyanide acids stiffening agent;
The molecular weight of described acrylic ester adhesive is 30～850,000.
Wherein, described resin is selected from a kind of in terpenes tackifying resin, phenolic tackifying resin, rosin based tackifying resin and the petroleum-type tackifying resin;
Described stiffening agent is selected from the isocyanate-based linking agent, and epoxy is linking agent, metal-chelating system linking agent, and aziridine is linking agent.Wherein, preferably carry out the linking agent of the type of crosslinking reaction rear interpolation of polymerization end; Preferred rich reactive isocyanate-based linking agent and epoxy with acrylic copolymer is linking agent; From improving the aspect consideration of matrix and the adaptation of foam matrix, more preferably isocyanates linking agent;
Preferably, described acrylic ester adhesive is the multipolymer of butyl acrylate, ethyl acrylate, vinylformic acid-2 hydroxyl ethyl ester and vinyl acetate, and molecular weight is 30～850,000.
Above-mentioned tackiness agent can use vinyl acetic monomer and/or toluene to be solvent, and the consumption of solvent can specifically be selected as required.
Described terpenes tackifying resin can be selected from the terpenoid resins such as а-pinane based polymer, в-pinane based polymer, limonene polymkeric substance and with the modification terpenoid resin;
Wherein, described phenolic tackifying resin can be selected from various phenolic resins, such as alkyl phenolic resinoid, dimethylamino benzophenone air aldehyde resin etc.;
Described rosin based tackifying resin is selected from gum resin, wood rosin, the derivative of toll oil rosin or rosin;
Described petroleum-type tackifying resin is selected from aromatic petroleum resin, aliphatic petroleum resin or alicyclic petroleum resin;
Described modification terpenoid resin is phenol modification, aromatic series modification, hydrogenation modification, hydrocarbon modification terpenoid resin, for example terpene phenolic resinoid, phenylethene modified terpenoid resin, the terpenoid resin of aromatic series modification, hydrogenation terpenoid resin etc.;
Adhesion characteristic as tackifying resin is preferably the rosin based tackifying resin, is particularly preferably the rosin ester class; Resin can select single resin also can select several being mixed, and is preferably mixing match, and preferred two kinds of resins are used, and proportioning is 1:1, preferred 10 parts of the consumption of resin.
Described silane coupling agent is selected from Silane coupling agent KH550, silane coupling agent KH560, silane coupling agent KH570, silane coupling agent KH792, silane coupling agent DL602 or silane coupling agent DL171.
Wherein, preferred A-1100, Z-6011 or KBM-903 among the KH550;
Preferred A-187 or KBM-403 among the KH560;
Preferred A-174, KBM-503 or SH-6030 among the KH570;
Preferred A-112.0, Z-6020, KBM-603 among the KH792;
Preferred A-2120 or KBM-602 among the DL-602.
The present invention is by behind the lot of experiments, select expansion ratio be 2-5 polyethylene foam IXPE doubly as the foam matrix, the thickness of foam is typically chosen in 20～300 μ m, is preferably 50-200 μ m; This foam has independent netted unicellular structure, and the foam expansion ratio is lower in addition, can effectively stop the water molecules infiltration, makes water-intake rate be lower than 0.01g/cm
2, be almost 0; Selected matrix sizing agent has excellent wet fastness and thermotolerance, good die-cut property and the fillibility of male and fomale(M﹠F), crosslinked adjustment molecular structure by stiffening agent changes reticulated structure into by wire, intermolecular forces is increased, the polymkeric substance cohesive strength increases, be subjected under air or ultraviolet the impact, inter-molecular linkage is easy fracture not; Silane coupling agent has improved cohesiveness between superpolymer and the mineral filler by chemical bonds, and performance is obviously improved; The silane coupling agent that contains vinyl and methacryloxy, effective especially to unsaturated polyester resin and acrylic resin, can form polymolecular immunity resin layer after the unsaturated link(age) reaction in coupling agent and the vinylformic acid, this layer interfacial stress that can relax, the expansion in organizational interface crack, thereby changed the bonding strength at interface.As improving the resin activity, improving interface bond strength, Z-6020 is more excellent, as preferably; Ratio in the sizing agent fluid,matching is 0.1%-3.5%; Stiffening agent mainly plays crosslinked action, makes original linear main polymer become the build reticulated structure, the cohesive strength of raising tackiness agent and resistance to deterioration etc.
Compared with prior art, waterproof double sticky tape adaptation provided by the present invention is excellent, and good waterproof performance is particluarly suitable for using in the product of electron device, giant-screen, slimming.
Description of drawings
Fig. 1 and Fig. 2 are the test floor map of water resistance in the embodiment of the invention.
Embodiment
Embodiment is described in further detail the present invention below in conjunction with accompanying drawing.
Embodiment 1 to 6 and Comparative Examples 1,2 prescription are as shown in table 1.
Employed matrix is the IXPE foam among each embodiment, and expansion ratio is 3 times, and the thickness of matrix can be optional between 50-200 μ m according to the use needs of concrete adhesive tape.Comparative example 1 employed matrix is non-woven fabrics, and the matrix that comparative example 2 uses is PET.
The preparation method of adhesive tape is as follows:
1, at first press the formulated tackiness agent mixed solution of table 1, concrete compound method is as follows:
Silane coupling agent is joined first in the resin mixture liquor, stir, be made into the resin solution of different ratios, then the resin solution of different ratios is joined in the acrylic ester adhesive and stir, add at last stiffening agent and be made into the tackiness agent mixed solution.
2, matrix is carried out surface treatment:
Matrix will be processed the top layer of foam before gluing, for example, and chemical or the physical property surface treatments such as primary coat processing, Corona discharge Treatment, Cement Composite Treated by Plasma.More specifically, for improve with adhesive layer (be used for providing double-faced adhesive tape of the present invention adhesive face binder layer and be used for the foam layer and binder layer that enhancement layer is fixing) adaptation, the surface treatment that can habitually practise has chemistry or the physical method oxide treatment such as corona treatment, chromic acid processing, ozone exposure, fire exposure, high-voltage electric shock exposure, ionizing ray, also can use primary coat or stripper etc., by many experiments, the present invention preferably adopts corona treatment.
3, adhesive coating mixed solution on the matrix:
Directly gluing or be laminated in other surface sizing on the foam matrix on the good foam matrix of corona treatment, with the acrylic acid series adhesion agent composition be coated with, dry direct coating process; Or after peeling sheet is with the coating of vinylformic acid adhesion agent composition, drying, fitting in the foam matrix, this method becomes tumbling barrel process;
4, the form of using according to electron device, coating thickness are optional in 10-200 μ m.Under small-sized, slim particular requirement, be preferably 20-80 μ m, be particularly preferably 25-60 μ m, under the thickness of this adhesive tape, go for the portable electronic device of thin small, and have excellent water resistance.
Table 1
In the table 1:
SK-N23 is polymerized rosin coumaran ester, and SK-R15 is the polymerized rosin pentaerythritol ester, and manufacturer is Nanjing Harry's agate, and both amount ratios are 1:1.
Used silane coupling agent Z-6020 chemical formula is N-(β-aminoethyl)-α-aminopropyl trimethoxysilane, (CH3O) 3SICH2CH2CH2NH CH2NHCH2, and its performance is as shown in table 2.
The physical property table of table 2Z-6020 silane coupling agent
The selection of matrix is very large to the good bad influence of water resistance.We test the performance of the adhesive tape of the IXPE preparation of different expansion ratios, and the result is as shown in table 3.
Table 3
As shown in Table 3,5-30 foam shock-absorbing capacity and drop performance doubly is all bad; Therefore to select the material of high strength and high elongation rate; Especially compressive strength and compression set are larger on the water-repellancy impact, and compressive strength is high, compression set is low, illustrates that the rebound resilience of material is good, and this material has larger improvement to the adaptation of curved surface; Therefore, we select below 3 times foaming, preferred 3 times.
The test result of the water resistance of the various embodiments described above and the prepared adhesive tape of Comparative Examples is as shown in table 4.
Table 4
The testing method of above-mentioned water-repellancy is as follows:
1) adhesive tape to be tested is made the frame glue 1 of " mouth " character form structure, its Outside Dimensions is 46mm * 61mm, in enclose and be of a size of 44mm * 59mm, the frame sticker is attached to the centre portions of PMMA plate 2, then cover on the glue face of frame glue with another piece PMMA plate, frame glue interposition is put a slice blank sheet of paper 3 as sign, and the roller bearing that uses 2kg after the roll extrusion 3 times, is put into the PE pipe of the 1m depth of water back and forth;
2) measure under 23 ℃ of conditions of water temperature according to IPX7 standard (depth of water 1m * 30min soak), through the time observe wherein whether variable color and judge its water resistance of blank sheet of paper behind the 30min.
As shown in Table 4, embodiment 1,2,4 is at plane and terrace, even the wide 0.1mm of only having of glue all has good water-repellancy, and the adding of visible coupling agent is played very important effect to the raising of water-repellancy.
Embodiment 7:
Proportioning: acrylate adhesive: 100 parts
SK-N23/SK-R15=1:1::5 part
Z-6020:2.8 part
L-45:0.1 part
Other content is same as the previously described embodiments.
Comparative example 7 is as shown in table 5 with the performance of comparative example 1.
Table 5
Embodiment to sum up, adhesive tape of the present invention is by powerful PE foam, adopt the mode that adds silane coupling agent to solve the bad problem of water-repellancy that the electronic product bonding occurs, different there has been obvious variation by veneer (plane or curved surface) water-repellancy, has solved especially the bad problem of waterproof because of frame glue narrower in width;
Claims (8)
1. a waterproof double sticky tape comprises the foam matrix, is coated on respectively two lip-deep the first adhesive-layers and the second adhesive-layers of described foam matrix and is compounded in interleaving paper on the first adhesive-layer; It is characterized in that:
Described foam matrix is IXPE, and the thickness of foam matrix is 20～1000 μ m, and expansion ratio is 2～5 times;
The weight of described the first adhesive-layer and described the second adhesive-layer is composed as follows:
Wherein, described resin is selected from least a in terpenes tackifying resin, phenolic tackifying resin, rosin based tackifying resin and the petroleum-type tackifying resin;
Described stiffening agent is selected from isocyanide acids stiffening agent;
The molecular weight of described acrylic ester adhesive is 30～850,000.
2. waterproof double sticky tape according to claim 1 is characterized in that described acrylic ester adhesive is the multipolymer with butyl acrylate, ethyl acrylate, vinylformic acid-2 hydroxyl ethyl ester and vinyl acetate.
3. waterproof double sticky tape according to claim 2 is characterized in that described terpenes tackifying resin is selected from а-pinane based polymer, в-pinane based polymer, limonene polymkeric substance or modification terpenoid resin; It can be various phenols that described phenolic tackifying resin is selected from; Described rosin based tackifying resin is selected from gum resin, wood rosin, the derivative of toll oil rosin or rosin; Described petroleum-type tackifying resin is selected from aromatic petroleum resin, aliphatic petroleum resin or alicyclic petroleum resin.
4. waterproof double sticky tape according to claim 2 is characterized in that described silane coupling agent is selected from KH550, KH560, KH570, KH792, DL602, DL171.
5. waterproof double sticky tape according to claim 4 is characterized in that described KH550 is A-1100, Z-6011 or KBM-903; Described KH560 is A-187 or KBM-403; Described KH570 is A-174, KBM-503 or SH-6030; Described KH792 is A-112.0, Z-6020, KBM-603; Described DL-602 is A-2120 or KBM-602.
6. waterproof double sticky tape according to claim 5, the consumption that it is characterized in that described silane coupling agent is 2.5～3.0%.
7. waterproof double sticky tape according to claim 3 is characterized in that described rosin based tackifying resin is the rosin ester class.
8. waterproof double sticky tape according to claim 3 is characterized in that described resin is any two kinds of resin blend things, and the weight ratio of these two kinds of resins is 1:1, and the content of described resin is 10 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105803360A CN102994001A (en) | 2012-12-26 | 2012-12-26 | Waterproof double sticky tape |
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| CN2012105803360A CN102994001A (en) | 2012-12-26 | 2012-12-26 | Waterproof double sticky tape |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103497400A (en) * | 2013-09-29 | 2014-01-08 | 苏州华周胶带有限公司 | Polyethylene foam tape base material |
| CN105111575A (en) * | 2015-09-01 | 2015-12-02 | 金华市捷特包装有限公司 | Polymer alloy material and preparation method thereof as well as forming method of oil tank |
| CN105647416A (en) * | 2016-02-01 | 2016-06-08 | 苏州哈恩新材料有限公司 | Novel foam adhesive tape of multi-layer structure and processing method thereof |
| CN106590474A (en) * | 2016-12-30 | 2017-04-26 | 宁波大榭开发区综研化学有限公司 | Heat-sensitive acrylate adhesive |
| CN106987217A (en) * | 2017-04-11 | 2017-07-28 | 新纶科技（常州）有限公司 | Waterproof foam double-faced adhesive band |
| CN108192523A (en) * | 2017-12-28 | 2018-06-22 | 东莞市澳中电子材料有限公司 | A kind of ultra-thin waterproof buffering adhesive band and preparation method thereof |
| WO2019047390A1 (en) * | 2017-09-11 | 2019-03-14 | 鞠君 | Foam adhesive tape protective film removal process |
| CN109852303A (en) * | 2018-12-29 | 2019-06-07 | 宁波大榭开发区综研化学有限公司 | A kind of high temperature resistant double faced adhesive tape and preparation method |
| CN109952664A (en) * | 2016-10-26 | 2019-06-28 | 大日本印刷株式会社 | Battery use packing material, its manufacturing method, battery and its manufacturing method |
| CN111440554A (en) * | 2020-05-13 | 2020-07-24 | 东莞捷邦实业有限公司 | Double-sided adhesive tape wrapping foam assembly, production process thereof and accurate positioning wrapping equipment |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103497400A (en) * | 2013-09-29 | 2014-01-08 | 苏州华周胶带有限公司 | Polyethylene foam tape base material |
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| CN105111575A (en) * | 2015-09-01 | 2015-12-02 | 金华市捷特包装有限公司 | Polymer alloy material and preparation method thereof as well as forming method of oil tank |
| CN105647416A (en) * | 2016-02-01 | 2016-06-08 | 苏州哈恩新材料有限公司 | Novel foam adhesive tape of multi-layer structure and processing method thereof |
| CN109952664A (en) * | 2016-10-26 | 2019-06-28 | 大日本印刷株式会社 | Battery use packing material, its manufacturing method, battery and its manufacturing method |
| CN109952664B (en) * | 2016-10-26 | 2021-11-30 | 大日本印刷株式会社 | Battery packaging material, method for producing same, battery, and method for producing same |
| CN106590474A (en) * | 2016-12-30 | 2017-04-26 | 宁波大榭开发区综研化学有限公司 | Heat-sensitive acrylate adhesive |
| CN106590474B (en) * | 2016-12-30 | 2019-07-23 | 宁波大榭开发区综研化学有限公司 | A kind of thermal sensitivity acrylate adhesive |
| CN106987217A (en) * | 2017-04-11 | 2017-07-28 | 新纶科技（常州）有限公司 | Waterproof foam double-faced adhesive band |
| WO2019047390A1 (en) * | 2017-09-11 | 2019-03-14 | 鞠君 | Foam adhesive tape protective film removal process |
| CN108192523A (en) * | 2017-12-28 | 2018-06-22 | 东莞市澳中电子材料有限公司 | A kind of ultra-thin waterproof buffering adhesive band and preparation method thereof |
| CN108192523B (en) * | 2017-12-28 | 2021-02-12 | 东莞市澳中电子材料有限公司 | Ultrathin waterproof buffer adhesive tape and preparation method thereof |
| CN109852303A (en) * | 2018-12-29 | 2019-06-07 | 宁波大榭开发区综研化学有限公司 | A kind of high temperature resistant double faced adhesive tape and preparation method |
| CN111440554A (en) * | 2020-05-13 | 2020-07-24 | 东莞捷邦实业有限公司 | Double-sided adhesive tape wrapping foam assembly, production process thereof and accurate positioning wrapping equipment |
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Application publication date: 20130327 |