CN104087215A - Pressure-sensitive adhesive applied to ultra-thin double faced adhesive tape and preparation method of pressure-sensitive adhesive - Google Patents
Pressure-sensitive adhesive applied to ultra-thin double faced adhesive tape and preparation method of pressure-sensitive adhesive Download PDFInfo
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- CN104087215A CN104087215A CN201410371874.8A CN201410371874A CN104087215A CN 104087215 A CN104087215 A CN 104087215A CN 201410371874 A CN201410371874 A CN 201410371874A CN 104087215 A CN104087215 A CN 104087215A
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- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims abstract description 68
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000002390 adhesive tape Substances 0.000 title abstract description 16
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims abstract description 75
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000005011 phenolic resin Substances 0.000 claims abstract description 21
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 21
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 18
- KILURZWTCGSYRE-LNTINUHCSA-K (z)-4-bis[[(z)-4-oxopent-2-en-2-yl]oxy]alumanyloxypent-3-en-2-one Chemical compound CC(=O)\C=C(\C)O[Al](O\C(C)=C/C(C)=O)O\C(C)=C/C(C)=O KILURZWTCGSYRE-LNTINUHCSA-K 0.000 claims abstract description 16
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims abstract description 14
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims abstract description 14
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000010410 layer Substances 0.000 claims description 51
- 239000003292 glue Substances 0.000 claims description 42
- 239000000463 material Substances 0.000 claims description 35
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 30
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 30
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 30
- 239000004819 Drying adhesive Substances 0.000 claims description 28
- 238000006243 chemical reaction Methods 0.000 claims description 21
- 150000003505 terpenes Chemical class 0.000 claims description 18
- 235000007586 terpenes Nutrition 0.000 claims description 18
- 125000000400 lauroyl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 14
- 238000005502 peroxidation Methods 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 229920000742 Cotton Polymers 0.000 claims description 5
- 239000011152 fibreglass Substances 0.000 claims description 5
- 239000004745 nonwoven fabric Substances 0.000 claims description 5
- -1 2-EHA Chemical compound 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 abstract description 7
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 abstract 2
- 239000000853 adhesive Substances 0.000 abstract 2
- 230000001070 adhesive effect Effects 0.000 abstract 2
- YIVJZNGAASQVEM-UHFFFAOYSA-N Lauroyl peroxide Chemical compound CCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCC YIVJZNGAASQVEM-UHFFFAOYSA-N 0.000 abstract 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 244000144725 Amygdalus communis Species 0.000 description 1
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 1
- 235000003893 Prunus dulcis var amara Nutrition 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012454 non-polar solvent Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
Landscapes
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention relates to the technical field of gloss oil and in particular relates to a pressure-sensitive adhesive applied to an ultra-thin double faced adhesive tape and a preparation method of the pressure-sensitive adhesive. The pressure-sensitive adhesive applied to the ultra-thin double faced adhesive tape consists of 35-45 parts of butyl acrylate, 10-20 parts of acrylic acid 2-phthalic acid ester, 0.5-2 parts of acrylic acid, 1-2 parts of hydroxyethyl acrylate, 32-50 parts of ethyl acetate, 60-70 parts of methylbenzene, 2-3 parts of dilauroyl peroxide, 5-15 parts of vinyl acetate, 10-30 parts of terpene-phenolic resin and 0.3-1 part of aluminium acetylacetonate. The finally prepared pressure-sensitive adhesive is a double-component cross-linked acrylate pressure-sensitive adhesive, and the advantages of acrylate and terpene-phenolic resin are integrated, so that the adhesive force of the pressure-sensitive adhesive can be over 1kg/in when the total thickness of the double faced adhesive tape is 15mu m or below, and the prepared double faced adhesive tape can meet the requirements on thinness and high adhesive force in the field of electronic industry.
Description
Technical field
The present invention relates to pressure sensitive adhesive technical field, relate in particular to a kind of pressure sensitive adhesive that is applied to ultrathin double-face glue and preparation method thereof.
Background technology
Pressure sensitive adhesive goods are widely used in the industry-by-industries such as packing, electric appliance and electronic, building, health care, automobile and family life articles for use, play the various bonding effects such as tie up, protect, seal, insulate and fix.In recent years, electronic product generally adopts structure glue or double faced adhesive tape to replace conventional screw as combine component, therefore, answers the thinness design of electronic product, also has the requirement of slimming for the total thickness of double faced adhesive tape.Yet, the traditional vinylformic acid solvent-borne type glue of most employing of current PET double faced adhesive tape on the market makes, thickness is mostly 30 ~ 50um, if reduce the coating thickness of vinylformic acid solvent-borne type glue, adhesion also declines thereupon, and general electronic products assembling at least needs the adhesion of 1kg/in with the performance requirement of double faced adhesive tape, if while using traditional vinylformic acid solvent-borne type glue to make total thickness for double faced adhesive tape product below 15um, its adhesion often only can reach 500 ~ 800g/in.Therefore, there is the problem of the demand that is difficult to simultaneously to reach slimming, high adhesion in existing double faced adhesive tape, and the above problem is urgently to be resolved hurrily.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, and pressure sensitive adhesive that is applied to ultrathin double-face glue of a kind of high adhesion and preparation method thereof is provided.
The present invention is achieved through the following technical solutions.
Be applied to a pressure sensitive adhesive for ultrathin double-face glue, it is comprised of the component of following weight part:
Butyl acrylate 35-45 part
2-EHA 10-20 part
Vinylformic acid 0.5-2 part
Hydroxyethyl acrylate 1-2 part
Vinyl acetate 5-15 part
Toluene 60-70 part
Ethyl acetate 32-50 part
Benzoyl peroxide 0.2-2 part
The two lauroyl 2-3 parts of peroxidation
Terpene phenolic resin 10-30 part
Aluminium acetylacetonate 0.3-1 part.
Terpene phenolic resin claims again terpene-phenolic resin, molecular-weight average >800, and proterties is brown color bulk or granular solids, darker than the color of terpine resin, and relative density is 0.9～1.03, and softening temperature is 80～148 ℃.Viscosity (150 ℃) is 1126mPas, hydroxyl value is 246mgKOH/g, dissolve in aromatic hydrocarbons, ketone, esters solvent, softening temperature is high, lighter color, bonding force is strong, force of cohesion is large, thermotolerance is high, ageing-resistant, nontoxic, miscible in very big scope with many polymeric resins, dissolve in much polarity or non-polar solvent.
Benzoyl peroxide is in the present invention as polymerization starter, its outward appearance and proterties are white or faint yellow thin wick, micro-have a bitter almond odor, molecular weight is 242.23, fusing point is 103 ℃, and relative density (water=1) is 1.33, is slightly soluble in water, methyl alcohol, be dissolved in ethanol, ether, acetone, benzene, chloroform dithiocarbonic anhydride etc., good stability.
The two lauroyl of peroxidation are in the present invention as efficient initiator, and proterties is that white powdery solid fusing point is 53-57 ℃ (lit.), and density is 0.91 g/cm
3, vapour density is 13.7 (vs air), water insoluble, is soluble in the organic solvents such as acetone, chloroform.
Aluminium acetylacetonate is as metallic salt solidifying agent of the present invention, proterties is white crystalline powder, fusing point is 190-195 ℃, boiling point is 315 ℃ (lit.), density is 1.27g/mL, its solubleness in the time of 25 ℃ is: water .00, methyl alcohol 1.8, toluene 14.6, benzene 35.4, be also dissolved in chloroform, ethanol and ether.Aluminium acetylacetonate, by an aluminium atom and three acetylacetone based linking together, as linking agent, improves the compactness of pressure sensitive adhesive by chemical sequestering action, strengthen resistance to elevated temperatures, Heat stability is good, increases the transparency of glue, and has hypotoxic feature.
Pressure sensitive adhesive of the present invention adopts solvent to make carrier as toluene, ethyl acetate when synthetic, so pressure sensitive adhesive
Character good, and building-up process carries out in the ethyl acetate of low toxicity, reduced the toxicity of product.
Preferably, a kind of pressure sensitive adhesive that is applied to ultrathin double-face glue, it is comprised of the component of following weight part:
Butyl acrylate 32-42 part
2-EHA 12-18 part
Vinylformic acid 0.7-1.5 part
Hydroxyethyl acrylate 1.2-1.8 part
Vinyl acetate 8-12 part
Toluene 63-68 part
Ethyl acetate 38-45 part
Benzoyl peroxide 0.6-1.2 part
The two lauroyl 2.2-2.6 parts of peroxidation
Terpene phenolic resin 15-25 part
Aluminium acetylacetonate 0.5-0.8 part.
More preferred, a kind of pressure sensitive adhesive that is applied to ultrathin double-face glue, it is comprised of the component of following weight part:
40 parts of butyl acrylates
15 parts of 2-EHAs
0.7 part, vinylformic acid
1.5 parts of Hydroxyethyl acrylates
10 parts of vinyl acetates
65 parts of toluene
41 parts of ethyl acetate
0.8 part of benzoyl peroxide
2.4 parts of the two lauroyl of peroxidation
20 parts of terpene phenolic resins
0.6 part of aluminium acetylacetonate.
The above-mentioned preparation method who is applied to the pressure sensitive adhesive of ultrathin double-face glue, it comprises following preparation process:
A, first ethyl acetate is divided into two portions, benzoyl peroxide is divided into two portions, standby, then butyl acrylate, 2-EHA, vinylformic acid, Hydroxyethyl acrylate, a part of ethyl acetate and toluene are packed in three neck round-bottomed flasks, again three neck round-bottomed flasks are connected respectively to agitator, thermometer, condenser, and by agitator, above added raw material stirring is even, simultaneously by water-bath by above heating raw materials;
B, to be heated to 85 ~ 90 ℃, adds a part of benzoyl peroxide while stirring;
C, add benzoyl peroxide after its heat release, to maintain after 85 ~ 90 ℃ of reaction 0.4-1h, add another part benzoyl peroxide and another part ethyl acetate, continue reaction;
After d, reaction 0.5-2h, add the two lauroyl of peroxidation and vinyl acetate, and lower the temperature again after constant temperature 2-5h;
E, after cooling to room temperature, add terpene phenolic resin, aluminium acetylacetonate, mix to each component and mix, make the pressure sensitive adhesive that is applied to ultrathin double-face glue.
Wherein, ultrathin double-face glue is that pressure sensitive adhesive is formed to straight rubberised layer with the surface that line rod is evenly coated base material, pressure sensitive adhesive is applied on separate-type paper or release film and is posted on another surface of base material again and forms and be posted glue-line, then through 80-100 ℃ of baking 2-5min, make respectively with the base material that is posted glue-line being provided with straight rubberised layer.
Wherein, being provided with straight rubberised layer is 90 ℃ with the storing temperature that is posted the base material of glue-line, and baking time is 3min.
Wherein, base material is a kind of in PET base material, plain weave woven fiber glass base material, non-woven fabrics base material or cotton paper base material, and the thickness of base material is 2-4 μ m.
Wherein, straight rubberised layer and be posted glue-line and form respectively after baking and be directly coated with drying adhesive layer and be posted drying adhesive layer, the thickness that is directly coated with drying adhesive layer and is posted drying adhesive layer is 3-5 μ m.
Beneficial effect of the present invention is: the pressure sensitive adhesive that is applied to ultrathin double-face glue of the present invention, with acrylate solution polymerization, and add terpene phenolic resin, make, between acrylate and terpene phenolic resin, chemical bonding occurs, formation has the water-based hybrid emulsions of nucleocapsid structure and inierpeneirating network structure, making the pressure sensitive adhesive finally making is a kind of pair of component crosslinking acrylate pressure sensitive adhesive, by the pressure-sensitive of acrylate excellence, weathering resistance, high with the softening temperature of terpene phenolic resin, lighter color, bonding force is strong, force of cohesion is large, thermotolerance is high, ageing-resistant, nontoxic feature combines, make synthetic pressure sensitive adhesive combine the advantage of acrylate and terpene phenolic resin, so that adopt that pressure sensitive adhesive of the present invention makes double faced adhesive tape, in the total thickness of double faced adhesive tape, be that 15um is when following, more than its adhesion still can reach 1kg/in, the double faced adhesive tape of making can meet electronics industry for slimming, the demand of high adhesion.
Preparation method of the present invention is simple and convenient, and production efficiency is high, is suitable for large-scale production.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
embodiment 1.
The preparation method of the pressure sensitive adhesive that is applied to ultrathin double-face glue of the present embodiment, comprises following preparation process:
A, 35 parts of butyl acrylates, 10 parts of 2-EHAs, 0.5 part of vinylformic acid, 1 part of Hydroxyethyl acrylate, 30 parts of ethyl acetate and 60 parts of toluene are packed in three neck round-bottomed flasks, again three neck round-bottomed flasks are connected respectively to agitator, thermometer, condenser, and by agitator, above added raw material stirring is even, simultaneously by water-bath by above heating raw materials;
B, to be heated to 85 ℃, adds 0.3 part of benzoyl peroxide of a part while stirring;
C, 0.3 part of benzoyl peroxide to be added maintain after 85 ℃ of reaction 1h after its heat release, then add 0.5 part of benzoyl peroxide and 4 parts of ethyl acetate, continue reaction;
After d, reaction 0.5h, add the two lauroyl of 2 parts of peroxidation and 5 parts of vinyl acetates, and lower the temperature again after constant temperature 2h;
E, after cooling to room temperature, add 10 parts of terpene phenolic resins, 0.3 part of aluminium acetylacetonate, mix to each component and mix, make pressure sensitive adhesive.
The ultrathin double-face glue that the above-mentioned pressure sensitive adhesive of employing of the present embodiment makes, ultrathin double-face glue is that a surface of pressure sensitive adhesive evenly being coated to the PET base material of 2 μ m with line rod forms straight rubberised layer, pressure sensitive adhesive is applied on separate-type paper or release film and is posted on another surface of PET base material again and forms and be posted glue-line, then through 80 ℃ of baking 5min, make respectively with the PET base material that is posted glue-line being provided with straight rubberised layer; Straight rubberised layer and be posted glue-line and form respectively after baking and be directly coated with drying adhesive layer and be posted drying adhesive layer, the thickness that is directly coated with drying adhesive layer and is posted drying adhesive layer is 3 μ m.
embodiment 2.
The preparation method of the pressure sensitive adhesive that is applied to ultrathin double-face glue of the present embodiment, comprises following preparation process:
A, 45 parts of butyl acrylates, 20 parts of 2-EHAs, 2 parts of vinylformic acid, 2 parts of Hydroxyethyl acrylates, 40 parts of a part of ethyl acetate and 70 parts of toluene are packed in three neck round-bottomed flasks, again three neck round-bottomed flasks are connected respectively to agitator, thermometer, condenser, and by agitator, above added raw material stirring is even, simultaneously by water-bath by above heating raw materials;
B, to be heated to 86 ℃, adds 1 part of benzoyl peroxide while stirring;
C, 1 part of benzoyl peroxide to be added maintain after 87 ℃ of reaction 0.8h after its heat release, then add 1 part of benzoyl peroxide and 10 parts of ethyl acetate, continue reaction;
After d, reaction 0.8h, add the two lauroyl of 3 parts of peroxidation and 15 parts of vinyl acetates, and lower the temperature again after constant temperature 3h;
E, after cooling to room temperature, add 30 parts of terpene phenolic resins, 1 part of aluminium acetylacetonate, mix to each component and mix, make pressure sensitive adhesive.
The ultrathin double-face glue that the above-mentioned pressure sensitive adhesive of employing of the present embodiment makes, ultrathin double-face glue is that a surface of pressure sensitive adhesive evenly being coated to the plain weave woven fiber glass base material of 2.5 μ m with line rod forms straight rubberised layer, pressure sensitive adhesive is applied on separate-type paper or release film and is posted on another surface of plain weave woven fiber glass base material again and forms and be posted glue-line, then through 85 ℃ of baking 4min, make respectively with the plain weave woven fiber glass base material that is posted glue-line being provided with straight rubberised layer; Straight rubberised layer and be posted glue-line and form respectively after baking and be directly coated with drying adhesive layer and be posted drying adhesive layer, the thickness that is directly coated with drying adhesive layer and is posted drying adhesive layer is 3.5 μ m.
embodiment 3.
The preparation method of the pressure sensitive adhesive that is applied to ultrathin double-face glue of the present embodiment, comprises following preparation process:
A, 32 parts of butyl acrylates, 12 parts of 2-EHAs, 0.7 part of vinylformic acid, 1.2 parts of Hydroxyethyl acrylates, 34 parts of ethyl acetate and 63 parts of toluene are packed in three neck round-bottomed flasks, again three neck round-bottomed flasks are connected respectively to agitator, thermometer, condenser, and by agitator, above added raw material stirring is even, simultaneously by water-bath by above heating raw materials;
B, to be heated to 87 ℃, adds 0.4 part of benzoyl peroxide while stirring;
C, 0.5 part of benzoyl peroxide to be added maintain after 88 ℃ of reaction 0.6h after its heat release, then add 0.5 part of benzoyl peroxide and 4 parts of ethyl acetate, continue reaction; ;
After d, reaction 1h, add the two lauroyl of 2.2 parts of peroxidation and 8 parts of vinyl acetates, and lower the temperature again after constant temperature 3.5h;
E, after cooling to room temperature, add 15 parts of terpene phenolic resins, 0.5 part of aluminium acetylacetonate, mix to each component and mix, make pressure sensitive adhesive.
The ultrathin double-face glue that the above-mentioned pressure sensitive adhesive of employing of the present embodiment makes, ultrathin double-face glue is that a surface of pressure sensitive adhesive evenly being coated to the non-woven fabrics base material of 3 μ m with line rod forms straight rubberised layer, pressure sensitive adhesive is applied on separate-type paper or release film and is posted on another surface of non-woven fabrics base material again and forms and be posted glue-line, then through 90 ℃ of baking 3min, make respectively with the non-woven fabrics base material that is posted glue-line being provided with straight rubberised layer; Straight rubberised layer and be posted glue-line and form respectively after baking and be directly coated with drying adhesive layer and be posted drying adhesive layer, the thickness that is directly coated with drying adhesive layer and is posted drying adhesive layer is 4 μ m.
embodiment 4.
The preparation method of the pressure sensitive adhesive that is applied to ultrathin double-face glue of the present embodiment, comprises following preparation process:
A, 42 parts of butyl acrylates, 18 parts of 2-EHAs, 1.5 parts of vinylformic acid, 1.8 parts of Hydroxyethyl acrylates, 38 parts of ethyl acetate and 68 parts of toluene are packed in three neck round-bottomed flasks, again three neck round-bottomed flasks are connected respectively to agitator, thermometer, condenser, and by agitator, above added raw material stirring is even, simultaneously by water-bath by above heating raw materials;
B, to be heated to 89 ℃, adds 0.7 part of benzoyl peroxide while stirring;
C, 0.7 part of benzoyl peroxide to be added maintain after 89 ℃ of reaction 0.5h after its heat release, then add 0.5 part of benzoyl peroxide and 7 parts of ethyl acetate, continue reaction;
After d, reaction 1.5h, add the two lauroyl of 2.6 parts of peroxidation and 12 parts of vinyl acetates, and lower the temperature again after constant temperature 4h;
E, after cooling to room temperature, add 25 parts of terpene phenolic resins, 0.8 part of aluminium acetylacetonate, mix to each component and mix, make pressure sensitive adhesive.
The ultrathin double-face glue that the above-mentioned pressure sensitive adhesive of employing of the present embodiment makes, ultrathin double-face glue is that a surface of pressure sensitive adhesive evenly being coated to the cotton paper base material of 3.5 μ m with line rod forms straight rubberised layer, pressure sensitive adhesive is applied on separate-type paper or release film and is posted on another surface of cotton paper base material again and forms and be posted glue-line, then through 95 ℃ of baking 2.5min, make respectively with the cotton paper base material that is posted glue-line being provided with straight rubberised layer; Straight rubberised layer and be posted glue-line and form respectively after baking and be directly coated with drying adhesive layer and be posted drying adhesive layer, is directly coated with drying adhesive layer and is posted the equal 4.5 μ m of thickness of drying adhesive layer.
embodiment 5.
The preparation method of the pressure sensitive adhesive that is applied to ultrathin double-face glue of the present embodiment, comprises following preparation process:
A, 40 parts of butyl acrylates, 15 parts of 2-EHAs, 0.7 part of vinylformic acid, 1.5 parts of Hydroxyethyl acrylates, 35 parts of ethyl acetate and 65 parts of toluene are packed in three neck round-bottomed flasks, again three neck round-bottomed flasks are connected respectively to agitator, thermometer, condenser, and by agitator, above added raw material stirring is even, simultaneously by water-bath by above heating raw materials;
B, to be heated to 90 ℃, adds 0.4 part of benzoyl peroxide of a part while stirring;
C, 0.4 part of benzoyl peroxide to be added maintain after 90 ℃ of reaction 0.4h after its heat release, then add 0.4 part of benzoyl peroxide and 6 parts of ethyl acetate, continue reaction;
After d, reaction 2h, add the two lauroyl of 2.4 parts of peroxidation and 10 parts of vinyl acetates, and lower the temperature again after constant temperature 5h;
E, after cooling to room temperature, add 20 parts of terpene phenolic resins, 0.6 part of aluminium acetylacetonate, mix to each component and mix, make pressure sensitive adhesive.
The ultrathin double-face glue that the above-mentioned pressure sensitive adhesive of employing of the present embodiment makes, ultrathin double-face glue is that a surface of pressure sensitive adhesive evenly being coated to the PET base material of 4 μ m with line rod forms straight rubberised layer, pressure sensitive adhesive is applied on separate-type paper or release film and is posted on another surface of PET base material again and forms and be posted glue-line, then through 100 ℃ of baking 2min, make respectively with the PET base material that is posted glue-line being provided with straight rubberised layer; Straight rubberised layer and be posted glue-line and form respectively after baking and be directly coated with drying adhesive layer and be posted drying adhesive layer, the thickness that is directly coated with drying adhesive layer and is posted drying adhesive layer is 5 μ m.
The performance detection data of the ultrathin double-face glue that embodiments of the invention 1 ~ embodiment 5 makes is in Table 1.
Table 1
。
As shown in table 1, comparative example 1 and comparative example 2 are the pressure sensitive adhesive of market, the adhesion < 1kg/in of comparative example 1, confining force >48h, the adhesion > 1kg/in of comparative example 2, confining force is only 1-55min, obviously the pressure sensitive adhesive of market cannot have high adhesion and confining force concurrently simultaneously, and the pressure sensitive adhesive that is applied to ultrathin double-face glue that embodiments of the invention 1-embodiment 5 makes, the double faced adhesive tape making not only has high adhesion at thickness as thin as a wafer, also there is good confining force simultaneously, especially in embodiment 3-5, when the content of linking agent is greater than 0.14%, the adhesion >1kg/in of the pressure sensitive adhesive making, confining force >48h, adhesion and confining force have simultaneously and are far longer than adhesion and the confining force of the pressure sensitive adhesive of market concurrently, greatly met the slimming of electronics industry for double faced adhesive tape, the demand of high adhesion and confining force.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although the present invention has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not depart from essence and the scope of technical solution of the present invention.
Claims (8)
1. a pressure sensitive adhesive that is applied to ultrathin double-face glue, is characterized in that: it is comprised of the component of following weight part:
Butyl acrylate 35-45 part
2-EHA 10-20 part
Vinylformic acid 0.5-2 part
Hydroxyethyl acrylate 1-2 part
Vinyl acetate 5-15 part
Toluene 60-70 part
Ethyl acetate 32-50 part
Benzoyl peroxide 0.2-2 part
The two lauroyl 2-3 parts of peroxidation
Terpene phenolic resin 10-30 part
Aluminium acetylacetonate 0.3-1 part.
2. a kind of pressure sensitive adhesive that is applied to ultrathin double-face glue according to claim 1, is characterized in that: it is comprised of the component of following weight part:
Butyl acrylate 32-42 part
2-EHA 12-18 part
Vinylformic acid 0.7-1.5 part
Hydroxyethyl acrylate 1.2-1.8 part
Vinyl acetate 8-12 part
Toluene 63-68 part
Ethyl acetate 38-45 part
Benzoyl peroxide 0.6-1.2 part
The two lauroyl 2.2-2.6 parts of peroxidation
Terpene phenolic resin 15-25 part
Aluminium acetylacetonate 0.5-0.8 part.
3. a kind of pressure sensitive adhesive that is applied to ultrathin double-face glue according to claim 1, is characterized in that: it is comprised of the component of following weight part:
40 parts of butyl acrylates
15 parts of 2-EHAs
0.7 part, vinylformic acid
1.5 parts of Hydroxyethyl acrylates
10 parts of vinyl acetates
65 parts of toluene
41 parts of ethyl acetate
0.8 part of benzoyl peroxide
2.4 parts of the two lauroyl of peroxidation
20 parts of terpene phenolic resins
0.6 part of aluminium acetylacetonate.
4. a kind of preparation method who is applied to the pressure sensitive adhesive of ultrathin double-face glue described in claim 1-3 any one, is characterized in that: it comprises following preparation process:
A, first ethyl acetate is divided into two portions, benzoyl peroxide is divided into two portions, standby, then butyl acrylate, 2-EHA, vinylformic acid, Hydroxyethyl acrylate, a part of ethyl acetate and toluene are packed in three neck round-bottomed flasks, and by agitator, above added raw material stirring is even, simultaneously by water-bath by above heating raw materials;
B, to be heated to 85 ~ 90 ℃, adds a part of benzoyl peroxide while stirring;
C, add benzoyl peroxide after its heat release, to maintain after 85 ~ 90 ℃ of reaction 0.4-1h, add another part benzoyl peroxide and another part ethyl acetate, continue reaction;
After d, reaction 0.5-2h, add the two lauroyl of peroxidation and vinyl acetate, and lower the temperature again after constant temperature 2-5h;
E, after cooling to room temperature, add terpene phenolic resin, aluminium acetylacetonate, mix to each component and mix, make the pressure sensitive adhesive that is applied to ultrathin double-face glue.
5. the ultrathin double-face glue that the pressure sensitive adhesive described in employing claim 1-3 any one makes, it is characterized in that: ultrathin double-face glue is that pressure sensitive adhesive is formed to straight rubberised layer with the surface that line rod is evenly coated base material, pressure sensitive adhesive is applied on separate-type paper or release film and is posted on another surface of base material again and forms and be posted glue-line, then through 80-100 ℃ of baking 2-5min, make respectively with the base material that is posted glue-line being provided with straight rubberised layer.
6. a kind of ultrathin double-face glue according to claim 5, is characterized in that: being provided with straight rubberised layer is 90 ℃ with the storing temperature that is posted the base material of glue-line, and baking time is 3min.
7. a kind of pressure sensitive adhesive that is applied to ultrathin double-face glue according to claim 5, is characterized in that: base material is a kind of in PET base material, plain weave woven fiber glass base material, non-woven fabrics base material or cotton paper base material, and the thickness of base material is 2-4 μ m.
8. a kind of pressure sensitive adhesive that is applied to ultrathin double-face glue according to claim 5, is characterized in that: straight rubberised layer and be posted glue-line and form respectively after baking and be directly coated with drying adhesive layer and be posted drying adhesive layer, the thickness that is directly coated with drying adhesive layer and is posted drying adhesive layer is 3-5 μ m.
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| CN105295787A (en) * | 2015-11-30 | 2016-02-03 | 东莞宏石功能材料科技有限公司 | UV photocuring solvent-free ultrahigh viscous pressure-sensitive adhesive and preparation method thereof |
| CN105774281A (en) * | 2016-03-24 | 2016-07-20 | 苏州久鋐电子有限公司 | Pressure-sensitive adhesive printing re-pasting technology |
| CN107216432A (en) * | 2017-06-27 | 2017-09-29 | 阜南县力韦包装材料有限公司 | A kind of preparation method of pressure sensitive adhesive for ultrathin double-face glue |
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| CN105774281A (en) * | 2016-03-24 | 2016-07-20 | 苏州久鋐电子有限公司 | Pressure-sensitive adhesive printing re-pasting technology |
| CN107216432A (en) * | 2017-06-27 | 2017-09-29 | 阜南县力韦包装材料有限公司 | A kind of preparation method of pressure sensitive adhesive for ultrathin double-face glue |
| CN107216432B (en) * | 2017-06-27 | 2018-04-13 | 阜南县力韦包装材料有限公司 | A kind of preparation method of pressure sensitive adhesive for ultrathin double-face glue |
| CN109575848A (en) * | 2017-08-16 | 2019-04-05 | 昆山石梅精细化工有限公司 | A kind of ultraviolet light solidifies solvent-free medical pressure sensitive adhesive and its preparation process |
| CN111465667A (en) * | 2017-12-15 | 2020-07-28 | 汉高股份有限及两合公司 | Adhesive tape for bonding textile materials |
| CN111465667B (en) * | 2017-12-15 | 2022-10-21 | 汉高股份有限及两合公司 | Adhesive tape for bonding textile materials |
| CN108864976A (en) * | 2018-08-10 | 2018-11-23 | 阜南县力韦包装材料有限公司 | A kind of fire-retardant mightiness belt of waterproof antiwear |
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| CN113801603A (en) * | 2021-10-20 | 2021-12-17 | 福建友谊胶粘带集团有限公司 | Ultrathin heat-conducting adhesive tape and preparation method thereof |
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