CN104694028B - A kind of optical cement and its production method - Google Patents
A kind of optical cement and its production method Download PDFInfo
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- CN104694028B CN104694028B CN201510144563.2A CN201510144563A CN104694028B CN 104694028 B CN104694028 B CN 104694028B CN 201510144563 A CN201510144563 A CN 201510144563A CN 104694028 B CN104694028 B CN 104694028B
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Abstract
The invention discloses a kind of optical cement and its production method, it is made up of the raw material of following parts by weight：80～100 parts of acrylic ester adhesive, 35～40 parts of plasticizer, 6～8 parts of coupling agent, 2～3 parts of light trigger, 1～2 part of antioxidant, 0.1～0.5 part of stabilizer, 0.1～0.3 part of modifying agent.Compared with prior art, the present invention passes through to optimize the proportioning raw materials of optical cement and production method so that itself off-type force reasonable mixture ratio and weight mould release membrance or light mould release membrance between, and product is not in light film strips glue or weight film strips glue.
Description
Technical field
The present invention relates to optical cement.
Background technology
OCA optical cement is one of raw material of important touch screen.It is optics acryl glue to be made no base material, then upper
Lower bottom, then one layer of release film of respectively fitting, are a kind of two-sided glue bands of no matrix material.It is the optimal glue of touch screen
Stick.Its advantage is clarity, high light transmittance (full light transmittance>99%), high adhesion force, high durable, resistance to water, high temperature resistant,
Uvioresistant, controlled thickness, provide uniform spacing, long-time use will not produce yellow (xanthochromia), peel off and rotten
Problem.
OCA optical cement can be applicable to different fields according to thickness difference, and its main uses is：Electronic Paper, transparent devices
Bonding, projection screen assembling, Aero-Space or military optics assembling, display assembling, lens assembling, resistive touch screen G+
The laminating of the plastic material such as F+F, F+F, capacitive touch screen, panel, ICON and glass and polycarbonate is used for cementing transparent
The special adhesive of optical element (as camera lens etc.).Requirement have water white transparency, light transmission rate more than 90%, cementing strength good
Good, the features such as can solidifying under room temperature or middle temperature, and have cure shrinkage little.Organic silicon rubber, acrylic type resin and unsaturation
The adhesive such as polyester, polyurethane, epoxy resin all can cementing optical element.Some inorganic agents generally to be added when preparing, with
Improve its optical property or reduce cure shrinkage.At present, between the optical cement on market and weight mould release membrance or light mould release membrance
Off-type force proportioning is unreasonable, leads to product light film strips glue or weight film strips glue.
For example：Chinese patent 201410300451.7 discloses a kind of optical cement, following including mixing by weight
Component：35～38 parts of polyurethane acrylate prepolymer；0.4～0.8 part of ESCALOL 567；Isobornyl
8～12 parts of acrylate；35～40 parts of plasticizer；6～8 parts of coupling agent；2～3 parts of light trigger；1～2 part of antioxidant.Also
Disclose a kind of preparation method of optical cement, just polyurethane acrylate prepolymer, ESCALOL 567,
Iso-bornyl acrylate, plasticizer, coupling agent, light trigger and antioxidant mix homogeneously post-heating, to 50～80 DEG C, stir
Mix reaction 1.5～1.8 hours, evacuation excludes bubble, cooling, obtains optical cement.Chinese patent 201310612903.0 disclosure
A kind of OCA optical adhesive tape, described OCA optical adhesive tape is followed successively by from top to bottom light peels off PET release film layer, optical cement layer and weight
Peel off PET release film layer, described optical cement includes following weight composition：Acrylic ester adhesive：100；Thickening agent：3；Even
Connection agent：0.5；Plasticizer：3；Stabilizer：0.1.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of optical cement and its production method.
The present invention is to be achieved through the following technical solutions：
A kind of optical cement is it is characterised in that be made up of the raw material of following parts by weight：Acrylic ester adhesive 80～
100 parts, 35～40 parts of plasticizer, 6～8 parts of coupling agent, 2～3 parts of light trigger, 1～2 part of antioxidant, stabilizer 0.1～
0.5 part, 0.1～0.3 part of modifying agent.
Further, described acrylic ester adhesive is cyanoacrylate.
Further, described plasticizer be phthalic acid ester, phosphate ester, alkyl sulfonic ester, fatty group dibasic acid, benzene many
One or more of acid esters and epoxide mix.
Further, described coupling agent is trimethyoxysilane, VTES, 3- trimethoxy silane third
One of olefin(e) acid propyl ester.
Further, described light trigger is benzoin methyl ether, benzoin ethyl ether, tripolycyanamide, tetraethyl michaelis ketone, benzene first
One of ketone, 1- hydroxycyclohexyl phenyl ketone, acrylate benzophenone, phenyl benzophenone and dihydroxy benaophenonel or several
Plant mixing.
Further, described antioxidant be N- phenyl-N '-isopropyl-p-phenylenediamine, N- (1,3- dimethylbutyl)-N '-
Diphenyl-para-phenylene diamine and N, one of N '-diphenyl-para-phenylene diamine.
Further, described stabilizer is copper acetate or hydroquinone.
Further, described modifying agent is polyurethane.
A kind of production method of optical cement, by acrylic ester adhesive, 80～100 parts are heated to 40～70 DEG C, then will
Add to acrylic ester adhesive after 0.1～0.3 part of heating fusing of modifying agent, keep 40～70 DEG C and stir, Ran Houjia
Enter 35～40 parts of plasticizer, 6～8 parts of coupling agent, 2～3 parts of light trigger, 1～2 part of antioxidant, 0.1～0.5 part of stabilizer,
Keep 40～70 DEG C and stir 1～2h, vacuumizing and exhausting steeps, after cooling.
Compared with prior art, the present invention pass through to optimize the proportioning raw materials of optical cement and production method so that its with weight from
Off-type force reasonable mixture ratio between type film or light mould release membrance, product is not in light film strips glue or weight film strips glue.
Specific embodiment
With reference to embodiment, the invention will be further described：
Embodiment 1
A kind of production method of optical cement, by acrylic ester adhesive, 80 parts are heated to 40 DEG C, then by modifying agent 0.1
Add to acrylic ester adhesive after part heating fusing, keep 40 DEG C simultaneously to stir, be subsequently adding 35 parts of plasticizer, coupling agent
6 parts, 2 parts of light trigger, 1 part of antioxidant, 0.1 part of stabilizer, keep 40 DEG C simultaneously to stir 1h, vacuumizing and exhausting steeps, after cooling
?.
Colloid mist degree 1% after testing, light transmittance >=90%；Mould release membrance mist degree：≤ 5%, light transmittance：>=85%；Cross cutting
Product size precision is ± 0.1mm；During 180 ° of strippings, the peeling force >=30N/in of glue and steel plate
Embodiment 2
A kind of production method of optical cement, by acrylic ester adhesive, 100 parts are heated to 70 DEG C, then by modifying agent
Add to acrylic ester adhesive after 0.3 part of heating fusing, keep 70 DEG C simultaneously to stir, be subsequently adding 40 parts of plasticizer, idol
8 parts of agent of connection, 3 parts of light trigger, 2 parts of antioxidant, 0.5 part of stabilizer, keep 70 DEG C and stir 2h, vacuumizing and exhausting steeps, cold
But afterwards.
Colloid mist degree 1% after testing, light transmittance >=90%；Mould release membrance mist degree：≤ 5%, light transmittance：>=85%；Cross cutting
Product size precision is ± 0.1mm；During 180 ° of strippings, the peeling force >=30N/in of glue and steel plate
Embodiment 3
A kind of production method of optical cement, by acrylic ester adhesive, 90 parts are heated to 50 DEG C, then by modifying agent 0.2
Add to acrylic ester adhesive after part heating fusing, keep 60 DEG C simultaneously to stir, be subsequently adding 38 parts of plasticizer, coupling agent
7 parts, 2.5 parts of light trigger, 1.5 parts of antioxidant, 0.3 part of stabilizer, keep 60 DEG C simultaneously to stir 1.5h, vacuumizing and exhausting steeps,
After cooling.
Colloid mist degree 1% after testing, light transmittance >=90%；Mould release membrance mist degree：≤ 5%, light transmittance：>=85%；Cross cutting
Product size precision is ± 0.1mm；During 180 ° of strippings, the peeling force >=30N/in of glue and steel plate
Embodiment 4
The optical cement that embodiment 1-3 obtains is detected, test condition, illumination：1200 ± 300LUX checks distance:30
± 2cm, 30-70 degree angle is checked, two-sided inspection, is visually no less than 100 inspection under 30S.
Testing result is as shown in the table：
Above-described embodiment only technology design to illustrate the invention and feature, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implements according to this, can not be limited the scope of the invention with this.All according to the present invention
Equivalence changes or modification that spirit is made, all should be included within the scope of the present invention.
Claims (1)
1. a kind of production method of optical cement it is characterised in that by acrylic ester adhesive 80～100 parts be heated to 40～70
DEG C, then add after 0.1～0.3 part of heating fusing of modifying agent to acrylic ester adhesive, keep 40～70 DEG C and stir
Mix, be subsequently adding 35～40 parts of plasticizer, 6～8 parts of coupling agent, 2～3 parts of light trigger, 1～2 part of antioxidant, stabilizer
0.1～0.5 part, keep 40～70 DEG C and stir 1～2h, vacuumizing and exhausting steeps, after cooling；
Described acrylic ester adhesive is cyanoacrylate；
Described plasticizer is phthalic acid ester, phosphate ester, alkyl sulfonic ester, fatty group dibasic acid, the many acid esters of benzene and epoxy
One or more of compound mixes；
Described coupling agent is trimethyoxysilane, VTES, in 3- trimethoxy silane propyl acrylate
One kind；
Described light trigger is benzoin methyl ether, benzoin ethyl ether, tripolycyanamide, tetraethyl michaelis ketone, benzophenone, 1- hydroxyl ring
One or more of hexyl phenyl ketone, acrylate benzophenone, phenyl benzophenone and dihydroxy benaophenonel mix；
Described antioxidant is N- phenyl-N '-isopropyl-p-phenylenediamine, N- (1,3- dimethylbutyl)-N '-phenyl to benzene two
Amine and N, one of N '-diphenyl-para-phenylene diamine；
Described stabilizer is copper acetate or hydroquinone；
Described modifying agent is polyurethane.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510144563.2A CN104694028B (en) | 2015-03-30 | 2015-03-30 | A kind of optical cement and its production method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510144563.2A CN104694028B (en) | 2015-03-30 | 2015-03-30 | A kind of optical cement and its production method |
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| CN104694028A CN104694028A (en) | 2015-06-10 |
| CN104694028B true CN104694028B (en) | 2017-03-08 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107699147A (en) * | 2017-10-30 | 2018-02-16 | 深圳市西陆光电技术有限公司 | A kind of preparation method of OCA optical cements for OLED |
| CN107955548A (en) * | 2017-10-31 | 2018-04-24 | 芜湖辉灿电子科技有限公司 | A kind of mobile phone screen anti-blue light OCA optical cements |
| CN107903833A (en) * | 2017-10-31 | 2018-04-13 | 芜湖辉灿电子科技有限公司 | A kind of protecting film of mobile phone screen OCA optical cements |
| CN107858109A (en) * | 2017-10-31 | 2018-03-30 | 芜湖辉灿电子科技有限公司 | Explosion-proof OCA optical cements in a kind of mobile phone |
| CN115124928A (en) * | 2022-07-18 | 2022-09-30 | 浙江日久新材料科技有限公司 | OCA optical glue for curved surface screen, adhesive film and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1995252B (en) * | 2006-12-21 | 2010-05-12 | 大连轻工业学院 | Photocured cyanoacrylate adhesives |
| CN102504708A (en) * | 2011-11-07 | 2012-06-20 | 北京天山新材料技术股份有限公司 | Toughened alpha-cyanoacrylate adhesive and preparation method thereof |
| CN103272263B (en) * | 2013-05-22 | 2014-10-22 | 江苏高博智融科技有限公司 | Medical adhesive |
| CN104099056A (en) * | 2014-06-27 | 2014-10-15 | 太仓展新胶粘材料有限公司 | Optical adhesive and preparation method thereof |
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