CN104559822B - Large-size sapphire glass grinding peelable two-sided tape and preparation method thereof - Google Patents
Large-size sapphire glass grinding peelable two-sided tape and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of peelable two-sided tape of large-size sapphire glass grinding, including the first release layer being combined successively, the first adhesive layer, the second adhesive layer and the second release layer, described first adhesive layer includes following components by weight: have the acrylic ester adhesive body 100 parts of heavy industry, the first cross-linking agent 1～4 parts；Described second adhesive layer includes following components by weight: have the acrylic ester adhesive body 100 parts of UV activity, light-sensitive compound 10～30 parts, light trigger 2～8 parts, the second cross-linking agent 2～8 parts, solvent 10～30 parts.Compared with prior art, this adhesive tape is easy to use, can be effectively improved the grinding efficiency of sapphire glass, and the grinding thickness of gained sapphire glass has preferable homogeneity.The invention still further relates to the preparation method of above-mentioned two-sided tape, this preparation method step is simple, and material therefor is cheap and easy to get, it is simple to realize industrialized production.
Description
Technical field
The present invention relates to peelable adhesive tape technical field, refer specifically to a kind of large-size sapphire glass grinding with peelable double
Face adhesive tape and preparation method thereof.
Background technology
In recent years, sapphire is owing to having the feature such as high rigidity, wearability, in cashier bar code scanning, large scale intelligence
The energy display components and parts such as mobile phone, panel computer are extensively applied and presents the state that supply falls short of demand.The processing of large-size sapphire
Generally need to experience corase grind, refine and multiple processes such as polishing, the course of processing need to use large-scale abrasive disk and carrying sapphire glass
The ceramic disk of glass, the pressure that during grinding, ceramic disk is applied in sapphire sheet reaches more than 100kg, and need to be pH=10's～11
Akaline liquid mesohigh speed lapping, makes sapphire sheet and the reverse high speed rotating of grinding pad.Due to finished product sapphire to uniformity,
Optical transmittances etc. are respectively provided with high requirement, therefore it is required that ground on rear sapphire glass and ceramic disk all without the most residual
Glue.
As it is shown in figure 1, grind sapphire glass time need to be fixed on ceramic disk sapphire glass, utilize ceramic disk with
Sapphire glass is ground by the high speed rotating between grinding pad.In prior art, generally can adopt when grinding sapphire glass
Being fixed by sapphire glass using the following method, one is to use printing-ink, but the method technique is loaded down with trivial details, and has ground
After need use ultrasound wave warm water process, be easily caused grinding complete sapphire the bad problem of albefaction occurs；Another kind is to make
Being fixed grinding with hot stripping tape, but the usual thickness of hot stripping tape is thicker, after causing processing, sapphire thickness is homogeneous
Property be difficult to reach requirement, and generally hot soarfing from time temperature more than 100 DEG C, after grinding, ceramic disk needs long period cooling
Can reuse, have a strong impact on working (machining) efficiency；UV adhesive is used then to be difficult to uniform brush coating, blue precious after being also easily caused processing
Stone in uneven thickness；If using common two-sided tape, then the more difficult taking-up of sapphire after processing, easily cause sapphire and crush.
Application publication number is Chinese invention patent application " a kind of UV adhesive and the preparation side thereof of CN103923572A
Method " (application number: CN201410180484.2), application publication number be that the Chinese invention patent application of CN103421400A is " a kind of
Touch screen UV solidification peelable blue gel and preparation method thereof " (application number: CN201310388295.X) etc. also disclose about UV solid
Change the scheme of stripping tape, but it is only used for small size silicon wafer, and large-size sapphire glass processing cannot be met
Related request and processing conditions.On the one hand, existing UV solidifies stripping tape again and is mostly single side UV and solidifies stripping tape again, nothing
Method is applied to this field；On the other hand, make the two-sided tape without base material be used for this field if UV to be solidified stripping tape again, by
Can change on each stage surface ground in sapphire glass, they can be different with ceramic disk surface, if using without base
The UV of material solidifies two-sided tape, and when taking off sapphire sheet after solidification, adhesive layer necessarily remains in ceramic disk or sapphire sheet,
Have a strong impact on working (machining) efficiency；Meanwhile, also it is difficult to ensure without the excessive colloidality of base material adhesive tape processing.
Therefore, it is badly in need of providing a kind of adhesive tape, to be applicable to the grinding of large-size sapphire glass.
Summary of the invention
First to be solved by this invention technical problem is that the present situation for prior art, it is provided that a kind of large scale indigo plant is precious
The peelable two-sided tape of stone glass grinding, this adhesive tape is easy to use, can be effectively improved the grinding efficiency of sapphire glass, and institute
The grinding thickness obtaining sapphire glass has preferable homogeneity.
Second to be solved by this invention technical problem is that the present situation for prior art, it is provided that a kind of above-mentioned large scale
The sapphire glass grinding preparation method of peelable two-sided tape, the method step is simple, facilitate implementation industrialized production.
The present invention solves the technical scheme that above-mentioned first technical problem used: a kind of large-size sapphire glass grinds
Mill use peelable two-sided tape, including the first release layer being combined successively, the first adhesive layer, the second adhesive layer and second from
Type layer, it is characterised in that:
Described first adhesive layer includes following components by weight:
There is the acrylic ester adhesive body 100 parts of heavy industry,
First cross-linking agent 1～4 parts；
Described second adhesive layer includes following components by weight:
As a further improvement on the present invention, also including core layer, this core layer is thickness 6 μm～the PET film of 15 μm；Institute
State core layer to be compound between the first adhesive layer and the second adhesive layer.
As preferably, the first described adhesive layer is the acrylate series pressure-sensitive with rippability and heavy industry,
The thickness of this acrylate series pressure-sensitive dry glue glue-line is 4 μm～15 μm, and the adhesion strength of this acrylate series pressure-sensitive is (4N
～8N)/25mm.
As preferably, the second described adhesive layer is UV exfoliated acrylate series pressure-sensitive, the exfoliated propylene of this UV
The thickness of acid esters series pressure-sensitive dry glue glue-line is 6 μm～15 μm, UV exfoliated acrylate series pressure-sensitive described in UV pre-irradiation
Adhesion strength is less than 0.2N/ more than the adhesion strength of described UV exfoliated acrylate series pressure-sensitive after 4N/25mm, UV irradiation
25mm。
Preferably, described light-sensitive compound is ethoxylated trimethylolpropane triacrylate, dipentaerythritol six
One or many in acrylate, pentaerythritol triacrylate, hexanediyl ester, neopentylglycol diacrylate
Kind.
Preferably, described light trigger is 1-hydroxy-cyclohexyl phenyl ketone, 2-methyl isophthalic acid-(4-methyl mercapto phenyl)-2-
Morpholinyl-1-acetone, 2,4,6-(trimethylbenzoyl)-diphenyl phosphine oxide, benzophenone, 2-hydroxy-methyl phenyl third
One or both in alkane-1-ketone.
Further preferably, the first described cross-linking agent and the second cross-linking agent are isocyanates system cross-linking agent, epoxy crosslinking
One or both mixture in agent；Described solvent is in ethyl acetate, propylene glycol monomethyl ether, butanone, methylisobutylketone, toluene
The mixed solvent of one or more.
In above-mentioned each scheme, the compression ratio after described first adhesive layer, core layer and the second adhesive layer are compound is little
In 10%.
The present invention solves the technical scheme that above-mentioned second technical problem used: a kind of large-size sapphire glass grinds
Grind by the preparation method of peelable two-sided tape, it is characterised in that comprise the following steps:
(1) there is 1～5 part of first cross-linking agent of addition in the acrylic ester adhesive body of heavy industry, stirring to 100 parts
Uniformly obtain the compositions of the first adhesive layer；
(2) in 100 parts of acrylic ester adhesive bodies with UV activity, 10～30 parts of photosensitive compounds are added successively
Thing and 10～30 parts of solvents, stir；It is subsequently adding 2～8 part of second cross-linking agent and stirs；It is eventually adding 2～8
Part light trigger also stirs, and obtains the compositions of the second adhesive layer；
(3) one side at core layer coats the compositions of the first adhesive layer, and carries out in the baking oven of 60 DEG C～100 DEG C
Being dried, after being dried, the outer surface at the first adhesive layer is combined the first release layer；The dry glue of described first adhesive layer is thick
Degree is 4 μm～15 μm；
(4) one side at the second release layer coats the compositions of the second adhesive layer, and in the baking oven of 60 DEG C～100 DEG C
Being dried, after being dried, the dry glue thickness of described second adhesive layer is 6 μm～15 μm；
(5) by the another side of the second adhesive layer in step (4) and the core of uncoated first adhesive layer in step (3)
The one side of layer is combined rolling, and at 35 DEG C～45 DEG C, maturation solidifies 3～4 days, i.e. obtains described large-size sapphire glass
Grind and use peelable two-sided tape.
As preferably, the mode using gradient to be dried in described step (3), (4) is dried, and specifically includes baking temperature
Be 60 DEG C the first gradient, baking temperature be 80 DEG C the second gradient, baking temperature be 90 DEG C the 3rd gradient and baking temperature
Being the 4th gradient of 100 DEG C, the drying time of each gradient is 30s～50s.
Compared with prior art, it is an advantage of the current invention that:
(1) use double-faced adhesive tape structure, and choose the acrylate series pressure-sensitive with rippability and heavy industry respectively
As the first adhesive layer, UV exfoliated acrylate series pressure-sensitive is as the second adhesive layer, and during use, sapphire glass glues
Being attached on the second adhensive layer, the first adhesive layer sticks on ceramic disk, thus is ground large-size sapphire glass；By
Two-sided tape in the present invention has relatively low compression ratio, and the first adhesive layer, the second adhesive layer are respectively provided with the most viscous
Put forth effort, thus ensure that the large-size sapphire thickness of glass ground has preferable homogeneity；
(2), after grinding, after UV exfoliated acrylate series pressure-sensitive uses UV to irradiate, adhesion strength is less than 0.2N/
25mm, readily can remove on sapphire glass, and have the acrylate series pressure-sensitive of rippability and heavy industry also
Can readily remove on ceramic disk, and all without cull after stripping, thus meet sapphire glass to uniformity, optical lens
Cross the requirement of rate；
(3) when peeling off after the present invention can improve the deflection of adhesive tape and excessive colloidality, and solidification, the second adhesive layer remains in
On PET film, manually peel off PET film and can easily the first adhesive layer, the second adhesive layer be removed in the lump, do not stay residual
Glue, promotes working (machining) efficiency；
(4) compared with needing after grinding of the prior art to process the adhesive tape that could remove or adhesive further, this
Bright two-sided tape is easy to use, improves the grinding efficiency of sapphire glass to a certain extent；
(5) present invention prepares the method step of two-sided tape simply, and material therefor is cheap and easy to get, it is simple to realize industry metaplasia
Produce.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of background of invention；
Fig. 2 is the schematic diagram fixing sapphire glass in the embodiment of the present invention with two-sided tape.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Embodiment 1:
In the present embodiment, with peelable two-sided tape, large-size sapphire glass grinding includes that be combined successively first is release
Layer, the first adhesive layer, core layer, the second adhesive layer and the second release layer, wherein,
First adhesive layer includes following components by weight:
There is the acrylic ester adhesive body SK-15 100 parts of heavy industry,
Isocyanates system cross-linking agent TDI 1 part；
Second adhesive layer includes following components by weight:
Core layer is the PET film of thickness 6 μm.
The above-mentioned large-size sapphire glass grinding preparation method of peelable two-sided tape comprises the following steps:
(1) have to 100 parts in the acrylic ester adhesive body SK-15 of heavy industry and add 1 part of isocyanates system friendship
Connection agent TDI, is uniformly mixing to obtain the compositions of the first adhesive layer；
(2) in 100 parts of acrylic ester adhesive body PSA-2B with UV activity, 10 parts of ethyoxyls are added successively
Change trimethylolpropane trimethacrylate and 20 parts of ethyl acetate, stir；It is subsequently adding 3 parts of isocyanates system crosslinkings
Agent TDI also stirs；It is eventually adding 4 parts of 1-hydroxy-cyclohexyl phenyl ketones and stirs, obtaining the second adhesive layer
Compositions；
(3) one side at the core layer of 6 μ m-thick coats the compositions of the first adhesive layer, and is dried in an oven,
After Gan Zaoing, the outer surface at the first adhesive layer is combined the first release layer；The dry glue thickness of the first adhesive layer is 4 μm；
(4) one side at the second release layer coats the compositions of the second adhesive layer, and is dried in an oven, is dried
After, the dry glue thickness of the second adhesive layer is 14 μm；
(5) by the another side of the second adhesive layer in step (4) and the core of uncoated first adhesive layer in step (3)
The one side of layer is combined rolling, and at 35 DEG C, maturation solidifies 3 days, i.e. obtains large-size sapphire glass grinding with peelable two-sided
Adhesive tape.
The mode using gradient to be dried in above-mentioned steps (3), (4) is dried, and specifically including baking temperature is 60 DEG C
First gradient, baking temperature are second gradient of 80 DEG C, baking temperature is the 3rd gradient of 90 DEG C and baking temperature is 100 DEG C
4th gradient, the drying time of each gradient is 30s.
Embodiment 2:
In the present embodiment, with peelable two-sided tape, large-size sapphire glass grinding includes that be combined successively first is release
Layer, the first adhesive layer, core layer, the second adhesive layer and the second release layer, wherein,
First adhesive layer includes following components by weight:
There is the acrylic ester adhesive body SK-15 100 parts of heavy industry,
Isocyanates system cross-linking agent TDI 2 parts；
Second adhesive layer includes following components by weight:
Core layer is the PET film of thickness 8 μm.
The above-mentioned large-size sapphire glass grinding preparation method of peelable two-sided tape comprises the following steps:
(1) have to 100 parts in the acrylic ester adhesive body SK-15 of heavy industry and add 2 parts of isocyanates systems friendships
Connection agent TDI, is uniformly mixing to obtain the compositions of the first adhesive layer；
(2) add 30 part of two season penta in 100 parts of acrylic ester adhesive body PSA-2B with UV activity successively
Tetrol six acrylate and 10 parts of propylene glycol monomethyl ethers, stir；It is subsequently adding 5 parts of isocyanates system cross-linking agent TDI also
Stir；It is eventually adding 5 parts of 2-methyl isophthalic acids-(4-methyl mercapto phenyl)-2-morpholinyl-1-acetone and stirs,
Compositions to the second adhesive layer；
(3) one side at the core layer of 8 μ m-thick coats the compositions of the first adhesive layer, and is dried in an oven,
After Gan Zaoing, the outer surface at the first adhesive layer is combined the first release layer；The dry glue thickness of the first adhesive layer is 15 μm；
(4) one side at the second release layer coats the compositions of the second adhesive layer, and is dried in an oven, is dried
After, the dry glue thickness of the second adhesive layer is 15 μm；
(5) by the another side of the second adhesive layer in step (4) and the core of uncoated first adhesive layer in step (3)
The one side of layer is combined rolling, and at 40 DEG C, maturation solidifies 4 days, i.e. obtains large-size sapphire glass grinding with peelable two-sided
Adhesive tape.
The mode using gradient to be dried in above-mentioned steps (3), (4) is dried, and specifically including baking temperature is 60 DEG C
First gradient, baking temperature are second gradient of 80 DEG C, baking temperature is the 3rd gradient of 90 DEG C and baking temperature is 100 DEG C
4th gradient, the drying time of each gradient is 30s.
Embodiment 3:
In the present embodiment, with peelable two-sided tape, large-size sapphire glass grinding includes that be combined successively first is release
Layer, the first adhesive layer, core layer, the second adhesive layer and the second release layer, wherein,
First adhesive layer includes following components by weight:
There is the acrylic ester adhesive body SK-15 100 parts of heavy industry,
Isocyanates system cross-linking agent HMDI 3 parts；
Second adhesive layer includes following components by weight:
Core layer is the PET film of thickness 10 μm.
The above-mentioned large-size sapphire glass grinding preparation method of peelable two-sided tape comprises the following steps:
(1) have to 100 parts in the acrylic ester adhesive body SK-15 of heavy industry and add 3 parts of isocyanates systems friendships
Connection agent HMDI, is uniformly mixing to obtain the compositions of the first adhesive layer；
(2) in 100 parts of acrylic ester adhesive body PSA-2B with UV activity, 15 parts of Ji Wusi are added successively
Alcohol triacrylate and 25 parts of butanone, stir；It is subsequently adding 8 parts of isocyanates system cross-linking agent TDI and stirs；
Being eventually adding 2 part 2,4,6-(trimethylbenzoyl)-diphenyl phosphine oxides also stir, and obtain the second adhesive layer
Compositions；
(3) one side at the core layer of 10 μ m-thick coats the compositions of the first adhesive layer, and is dried in an oven,
After Gan Zaoing, the outer surface at the first adhesive layer is combined the first release layer；The dry glue thickness of the first adhesive layer is 4 μm；
(4) one side at the second release layer coats the compositions of the second adhesive layer, and is dried in an oven, is dried
After, the dry glue thickness of the second adhesive layer is 6 μm；
(5) by the another side of the second adhesive layer in step (4) and the core of uncoated first adhesive layer in step (3)
The one side of layer is combined rolling, and at 38 DEG C, maturation solidifies 3 days, i.e. obtains large-size sapphire glass grinding with peelable two-sided
Adhesive tape.
The mode using gradient to be dried in above-mentioned steps (3), (4) is dried, and specifically including baking temperature is 60 DEG C
First gradient, baking temperature are second gradient of 80 DEG C, baking temperature is the 3rd gradient of 90 DEG C and baking temperature is 100 DEG C
4th gradient, the drying time of each gradient is 30s.
Embodiment 4:
In the present embodiment, with peelable two-sided tape, large-size sapphire glass grinding includes that be combined successively first is release
Layer, the first adhesive layer, core layer, the second adhesive layer and the second release layer, wherein,
First adhesive layer includes following components by weight:
There is the acrylic ester adhesive body SK-15 100 parts of heavy industry,
Isocyanates system cross-linking agent HMDI 4 parts；
Second adhesive layer includes following components by weight:
Core layer is the PET film of thickness 12 μm.
The above-mentioned large-size sapphire glass grinding preparation method of peelable two-sided tape comprises the following steps:
(1) have to 100 parts in the acrylic ester adhesive body SK-15 of heavy industry and add 4 parts of isocyanates systems friendships
Connection agent HMDI, is uniformly mixing to obtain the compositions of the first adhesive layer；
(2) in 100 parts of acrylic ester adhesive body PSA-2B with UV activity, 20 parts of hexanediol are added successively
Diacrylate and 15 parts of methylisobutylketones, stir；It is subsequently adding 2 parts of isocyanates system cross-linking agent HMDI and stirs
Uniformly；It is eventually adding 8 parts of benzophenones and stirs, obtaining the compositions of the second adhesive layer；
(3) one side at the core layer of 12 μ m-thick coats the compositions of the first adhesive layer, and is dried in an oven,
After Gan Zaoing, the outer surface at the first adhesive layer is combined the first release layer；The dry glue thickness of the first adhesive layer is 10 μm；
(4) one side at the second release layer coats the compositions of the second adhesive layer, and is dried in an oven, is dried
After, the dry glue thickness of the second adhesive layer is 6 μm；
(5) by the another side of the second adhesive layer in step (4) and the core of uncoated first adhesive layer in step (3)
The one side of layer is combined rolling, and at 45 DEG C, maturation solidifies 4 days, i.e. obtains large-size sapphire glass grinding with peelable two-sided
Adhesive tape.
The mode using gradient to be dried in above-mentioned steps (3), (4) is dried, and specifically including baking temperature is 60 DEG C
First gradient, baking temperature are second gradient of 80 DEG C, baking temperature is the 3rd gradient of 90 DEG C and baking temperature is 100 DEG C
4th gradient, the drying time of each gradient is 30s.
Embodiment 5:
In the present embodiment, with peelable two-sided tape, large-size sapphire glass grinding includes that be combined successively first is release
Layer, the first adhesive layer, core layer, the second adhesive layer and the second release layer, wherein,
First adhesive layer includes following components by weight:
There is the acrylic ester adhesive body SK-15 100 parts of heavy industry,
Isocyanates system cross-linking agent TDI 2 parts；
Second adhesive layer includes following components by weight:
Core layer is the PET film of thickness 9 μm.
The above-mentioned large-size sapphire glass grinding preparation method of peelable two-sided tape comprises the following steps:
(1) have to 100 parts in the acrylic ester adhesive body SK-15 of heavy industry and add 5 parts of isocyanates systems friendships
Connection agent TDI, is uniformly mixing to obtain the compositions of the first adhesive layer；
(2) in 100 parts of acrylic ester adhesive body PSA-2B with UV activity, 25 parts new penta 2 are added successively
Alcohol diacrylate and 30 parts of toluene, stir；It is subsequently adding 6 parts of isocyanates system cross-linking agent HMDI and stirs all
Even；It is eventually adding 7 parts of 2-hydroxy-methyl phenyl-propane-1-ketone and stirs, obtaining the combination of the second adhesive layer
Thing；
(3) one side at the core layer of 9 μ m-thick coats the compositions of the first adhesive layer, and is dried in an oven,
After Gan Zaoing, the outer surface at the first adhesive layer is combined the first release layer；The dry glue thickness of the first adhesive layer is 7 μm；
(4) one side at the second release layer coats the compositions of the second adhesive layer, and is dried in an oven, is dried
After, the dry glue thickness of the second adhesive layer is 12 μm；
(5) by the another side of the second adhesive layer in step (4) and the core of uncoated first adhesive layer in step (3)
The one side of layer is combined rolling, and at 42 DEG C, maturation solidifies 4 days, i.e. obtains large-size sapphire glass grinding with peelable two-sided
Adhesive tape.
The mode using gradient to be dried in above-mentioned steps (3), (4) is dried, and specifically including baking temperature is 60 DEG C
First gradient, baking temperature are second gradient of 80 DEG C, baking temperature is the 3rd gradient of 90 DEG C and baking temperature is 100 DEG C
4th gradient, the drying time of each gradient is 30s.
Embodiment 6:
In the present embodiment, with peelable two-sided tape, large-size sapphire glass grinding includes that be combined successively first is release
Layer, the first adhesive layer, core layer, the second adhesive layer and the second release layer, wherein,
First adhesive layer includes following components by weight:
There is the acrylic ester adhesive body SK-15 100 parts of heavy industry,
Isocyanates system cross-linking agent TDI 3 parts；
Second adhesive layer includes following components by weight:
Core layer is the PET film of thickness 15 μm.
The above-mentioned large-size sapphire glass grinding preparation method of peelable two-sided tape comprises the following steps:
(1) have to 100 parts in the acrylic ester adhesive body SK-15 of heavy industry and add 3 parts of isocyanates systems friendships
Connection agent TDI, is uniformly mixing to obtain the compositions of the first adhesive layer；
(2) in 100 parts of acrylic ester adhesive body PSA-2B with UV activity, 18 parts new penta 2 are added successively
Alcohol diacrylate, the mixture of hexanediyl ester and 20 parts of toluene, mixed solvents of ethyl acetate, be sufficiently stirred for all
Even；It is subsequently adding 7 parts of isocyanates system cross-linking agent HMDI and stirs；Be eventually adding 3 parts of 2-hydroxy-methyl phenyl-propanes-
1-ketone, the mixture of benzophenone also stir, and obtain the compositions of the second adhesive layer；
(3) one side at the core layer of 15 μ m-thick coats the compositions of the first adhesive layer, and is dried in an oven,
After Gan Zaoing, the outer surface at the first adhesive layer is combined the first release layer；The dry glue thickness of the first adhesive layer is 10 μm；
(4) one side at the second release layer coats the compositions of the second adhesive layer, and is dried in an oven, is dried
After, the dry glue thickness of the second adhesive layer is 10 μm；
(5) by the another side of the second adhesive layer in step (4) and the core of uncoated first adhesive layer in step (3)
The one side of layer is combined rolling, and at 40 DEG C, maturation solidifies 3 days, i.e. obtains large-size sapphire glass grinding with peelable two-sided
Adhesive tape.
The mode using gradient to be dried in above-mentioned steps (3), (4) is dried, and specifically including baking temperature is 60 DEG C
First gradient, baking temperature are second gradient of 80 DEG C, baking temperature is the 3rd gradient of 90 DEG C and baking temperature is 100 DEG C
4th gradient, the drying time of each gradient is 30s.
Fig. 2 is that the two-sided tape using the various embodiments described above to prepare fixes the schematic diagram that sapphire glass is ground.
Two-sided tape prepared by the various embodiments described above is carried out performance test, and test result is as shown in table 1.
Table 1
Above-mentioned each performance test methods is as follows:
(1) adhesion strength (180 ° of peel strengths): according to GB/T 2792-1998 standard, uses electronic tensile machine to be measured
(being SUS plate and GLASS plate by viscous base material, tape width is 25mm, and detachment rate is 300mm/min, during test one side, another
Face PET is combined).
(2) initial bonding strength: be measured according to GB/T 4852-2002 method, inclination angle is 30 °.
(3) holding power: be measured (test temperature is 40 DEG C) according to GB/T 4851-1998 standard.
(4) contaminative: by 180 ° of peel strength test method for making sample, by adhesive tape sticking to be measured on SUS plate and GLASS plate
(during test one side, another side PET is combined), after room temperature is placed 2 hours, takes the most slowly strip off for the first adhesive layer
Film, observes contaminative, manual strip off film observation contaminative (UV intensity after using UV to irradiate for the second adhesive layer
80mw/cm2, UV energy 300mj/cm2), zero represents that affixed object surface is without substantially polluting；△ represents part cull or point-like cull；
● represent that cull phenomenon ratio is more serious.
(5) high-temp resisting high-humidity resisting performance: be placed in the hydrothermal aging case of 65 DEG C/95%RH by protecting film adhesive tape is the most aging
1,3,7d, in the constant-temperature constant-humidity environment of (23 ± 2) DEG C/(65 ± 5) %RH, place 2h after taking-up；Then by 180 ° of peel strengths
Method of testing measures its adhesion strength, and manually peels off its contaminative of detection.
(6) UV irradiates: adhesive tape is cut into wide 25mm, and the long sample more than 150mm, by 180 ° of peel strength test method patches
Spread on by patch substrate surface, irradiate the several seconds in UV radiation instrument, take out test adhesion strength, and manually peel off test contaminative.
(7) 130kg pressing thickness change: adhesive tape is cut into the sample of 20cm × 20cm size, at sample surfaces optional 5
Individual point makes marks, and tests 5 integral thickness, is placed in by above-mentioned sample under 130kg counterweight and tests above-mentioned 5 sharp after pressing 2h
Body thickness, five dot thickness after deducting with front 5 dot thickness, calculate average thickness variation, the change of actual processing request thickness is less than 3 μ
m。
(8) acid-proof alkaline: adhesive tape is cut into the sample of 5cm × 5cm size, and by wherein one side release paper or release
Film grade polyester is combined, and another side is attached to the glass plate surface of cleaning, and glass plate is placed in the akaline liquid of PH=11 leaching
Steep 24 hours, take out observation have no liquid to penetrate into, without or be less than 0.5mm sepage be OK, be NG more than or equal to 0.5mm sepage.
The acrylic ester adhesive body SK-15 with heavy industry used in the present invention and there is the third of UV activity
Olefin(e) acid ester system adhesive body PSA-2B is manufactured by Zong Yan Co., Ltd. of Japan；Isocyanates system cross-linking agent TDI and 1-hydroxyl ring
Base phenyl ketone is manufactured by BASF joint-stock company；Isocyanates system cross-linking agent HMDI is carried by Hangzhou Green's Chemical trade company
Supply；Ethoxylated trimethylolpropane triacrylate is provided by Shanghai Bang Cheng Chemical Co., Ltd.；Neopentyl glycol diacrylate
Ester is provided by Kai Linruiyang chemical inc, Jiangsu；Dipentaerythritol acrylate is manufactured by Sartomer；Season
Penta tetrol triacrylate and hexanediyl ester are provided by Rui Pu new material company limited of Liyang City.
Claims (9)
1. the peelable two-sided tape of large-size sapphire glass grinding, including the first release layer being combined successively, first
Adhesive layer, the second adhesive layer and the second release layer, it is characterised in that:
Described first adhesive layer includes following components by weight:
There is the acrylic ester adhesive body 100 parts of heavy industry,
First cross-linking agent 1～4 parts；
Described second adhesive layer includes following components by weight:
The second described adhesive layer is UV exfoliated acrylate series pressure-sensitive, and this UV exfoliated acrylate series pressure-sensitive is done
The thickness of glue glue-line is 6 μm～15 μm, and the adhesion strength of UV exfoliated acrylate series pressure-sensitive described in UV pre-irradiation is more than 4N/
After 25mm, UV irradiation, the adhesion strength of described UV exfoliated acrylate series pressure-sensitive is less than 0.2N/25mm.
Two-sided tape the most according to claim 1, it is characterised in that: also include core layer, this core layer be thickness 6 μm～
The PET film of 15 μm；Described core layer is compound between the first adhesive layer and the second adhesive layer.
Two-sided tape the most according to claim 2, it is characterised in that: the first described adhesive layer is for having rippability
And the acrylate series pressure-sensitive of heavy industry, the thickness of this acrylate series pressure-sensitive dry glue glue-line is 4 μm～15 μm, this propylene
The adhesion strength of acid esters series pressure-sensitive is (4N～8N)/25mm.
4. according to the two-sided tape described in any claim in claims 1 to 3, it is characterised in that: described photosensitive compound
Thing be ethoxylated trimethylolpropane triacrylate, dipentaerythritol acrylate, pentaerythritol triacrylate, oneself
One or more in omega-diol diacrylate, neopentylglycol diacrylate.
5. according to the two-sided tape described in any claim in claims 1 to 3, it is characterised in that: described light trigger
For 1-hydroxy-cyclohexyl phenyl ketone, 2-methyl isophthalic acid-(4-methyl mercapto phenyl)-2-morpholinyl-1-acetone, 2,4,6-(trimethylbenzene
Formoxyl)-diphenyl phosphine oxide, benzophenone, one or both in 2-hydroxy-methyl phenyl-propane-1-ketone.
6. according to the two-sided tape described in any claim in claims 1 to 3, it is characterised in that: the first described crosslinking
Agent and the second cross-linking agent are one or both mixture in isocyanates system cross-linking agent, epoxy cross-linking agent；Described solvent
For the mixed solvent of one or more in ethyl acetate, propylene glycol monomethyl ether, butanone, methylisobutylketone, toluene.
7. according to the two-sided tape described in any claim in claim 2～3, it is characterised in that: described first adhesive
Compression ratio after layer, core layer and the second adhesive layer are compound is less than 10%.
8. a large-size sapphire glass grinding preparation method for peelable two-sided tape, its feature described in claim 2
It is to comprise the following steps:
(1) there is to 100 parts 1～5 part of first cross-linking agent of addition in the acrylic ester adhesive body of heavy industry, stir
Obtain the compositions of the first adhesive layer；
(2) successively to 100 parts have UV activity acrylic ester adhesive body in add 10～30 parts of light-sensitive compounds and
10～30 parts of solvents, stir；It is subsequently adding 2～8 part of second cross-linking agent and stirs；It is eventually adding 2～8 parts of light
Initiator also stirs, and obtains the compositions of the second adhesive layer；
(3) one side at core layer coats the compositions of the first adhesive layer, and does in the baking oven of 60 DEG C～100 DEG C
Dry, after being dried, the outer surface at the first adhesive layer is combined the first release layer；The dry glue thickness of described first adhesive layer
It is 4 μm～15 μm；
(4) one side at the second release layer coats the compositions of the second adhesive layer, and carries out in the baking oven of 60 DEG C～100 DEG C
Being dried, after being dried, the dry glue thickness of described second adhesive layer is 6 μm～15 μm；
(5) by the another side of the second adhesive layer in step (4) and the core layer of uncoated first adhesive layer in step (3)
The compound rolling of one side, and at 35 DEG C～45 DEG C, maturation solidifies 3～4 days, i.e. obtains described large-size sapphire glass grinding
Use peelable two-sided tape.
Preparation method the most according to claim 8, it is characterised in that: described step (3), (4) use gradient be dried
Mode is dried, and specifically includes the first gradient that baking temperature is 60 DEG C, baking temperature is second gradient of 80 DEG C, is dried temperature
Degree is the 3rd gradient of 90 DEG C and the 4th gradient that baking temperature is 100 DEG C, and the drying time of each gradient is 30s～50s.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410840211.6A CN104559822B (en) | 2014-12-29 | 2014-12-29 | Large-size sapphire glass grinding peelable two-sided tape and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410840211.6A CN104559822B (en) | 2014-12-29 | 2014-12-29 | Large-size sapphire glass grinding peelable two-sided tape and preparation method thereof |
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| Publication Number | Publication Date |
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| CN104559822A CN104559822A (en) | 2015-04-29 |
| CN104559822B true CN104559822B (en) | 2016-09-21 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106695538B (en) * | 2015-11-18 | 2019-07-05 | 富鼎电子科技(嘉善)有限公司 | Grind fixed device and the grinding method using the fixed device of the grinding |
| CN106867432B (en) * | 2015-12-10 | 2018-12-11 | 新纶科技（常州）有限公司 | A kind of ultraviolet photo-curing cementing agent and the release force test method using the adhesive |
| CN105385393B (en) * | 2015-12-31 | 2017-08-15 | 宁波大榭开发区综研化学有限公司 | One kind is containing APCF layers of polaroid two-sided shading rubber belt and preparation method thereof |
| CN108611010A (en) * | 2018-03-30 | 2018-10-02 | 东莞市澳中电子材料有限公司 | A kind of two-sided UV Protection glues band of easy-clear and preparation method thereof |
| CN113249046A (en) * | 2021-04-29 | 2021-08-13 | 宁波启合新材料科技有限公司 | Novel double-sided adhesive tape |
| CN113512382B (en) * | 2021-07-28 | 2022-12-20 | 深圳市化讯半导体材料有限公司 | Peelable adhesive and preparation method and application thereof |
| CN115284151A (en) * | 2022-08-18 | 2022-11-04 | 广东先导微电子科技有限公司 | Wax-free polishing process method |
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| KR101393778B1 (en) * | 2010-11-22 | 2014-05-13 | (주)엘지하우시스 | Double-Side Adhesive Sheet and Touch Panel Display Device comprising the same |
| JP2012149182A (en) * | 2011-01-19 | 2012-08-09 | Nitto Denko Corp | Double-sided adhesive tape or sheet, and method for processing adherend |
| CN202297447U (en) * | 2011-10-24 | 2012-07-04 | 宁波大榭开发区综研化学有限公司 | Adhesive tape |
| CN103013373A (en) * | 2012-12-26 | 2013-04-03 | 宁波大榭开发区综研化学有限公司 | Acid and alkali-resistant high-temperature-resistant double-sided tape and manufacturing method thereof |
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