CN109401646A - A kind of quick-binding technique of silica gel and PET - Google Patents
A kind of quick-binding technique of silica gel and PET Download PDFInfo
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- CN109401646A CN109401646A CN201811114152.9A CN201811114152A CN109401646A CN 109401646 A CN109401646 A CN 109401646A CN 201811114152 A CN201811114152 A CN 201811114152A CN 109401646 A CN109401646 A CN 109401646A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
- C09J5/02—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving pretreatment of the surfaces to be joined
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Abstract
The invention discloses the quick-binding techniques of a kind of silica gel and PET, comprising: silica gel preparation process: providing a silica gel, by the binding face of silica gel successively after ultrasonic cleaning step, laser treatment step and plasma treatment step, obtains pretreatment silica gel；PET preparation process: providing a PET, and PET is carried out surface plasma processing；Adhesion step: the spreading glue on the binding face of pretreatment silica gel, then the binding face of PET and the binding face of pretreatment silica gel are bonded, then pressure maintaining is carried out by pressure maintaining jig, after pressure maintaining jig is put into high temperature and humidity case, start to solidify, controlled at 30-60 DEG C, humidity 60-90%, curing time is 1-3H, and silica gel and the glued construction of PET are obtained after solidification.Adhesion technique of the invention improves the inertia factor of Silica Surface, greatly strengthens the adhesive strength between silica gel and PET, solves the problems, such as coming unglued between silica gel and PET；It can be realized simultaneously and carry out rapid curing under the premise of ensuring the quality of production, improve production efficiency.
Description
Technical field
The present invention relates to a kind of adhesion techniques, more particularly to the quick-binding technique of a kind of silica gel and PET.
Background technique
Silica gel (Silica gel；Silica) alias: silicic acid gel is a kind of high activity adsorbent material, belongs to amorphous state object
Matter, chemical molecular formula mSiO2·nH2O；Do not react with any substance in addition to highly basic, hydrofluoric acid, it is not soluble in water and appoint
What solvent, non-toxic and tasteless, chemical property is stablized.The silica gel of various models forms different micropore knots because of its manufacturing method difference
Structure.The chemical composition and physical structure of silica gel determine that it has the characteristics that many other same type of material are difficult to replace: adsorptivity
Energy is high, thermal stability is good, chemical property is stable, has higher mechanical strength etc..
Because silica gel itself belongs to inert material, a large amount of silicone oil components are contained in inside, and silica gel is in forming process for convenient for life
Operation is produced, adds release agent once more, these reagents again increase the inert fraction of silica gel, so as to cause silicon after molding
Glue directly can not carry out strong bonding with any material, so that product is easy to come unglued.In addition, between silica gel and PET
Bonding glue, be divided into two kinds on the market, one is quick-binding glue, but quick-binding will cause silica gel and be hardened, and lose
Flexibility between silica gel and PET, therefore be excluded.There are also one is long-time adhering and solidifying is needed, generally at least 24H is
It can be fully cured, this time is too long, and efficiency is too low.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide the quick-binding works of a kind of silica gel and PET
Skill, the adhesion technique improve the inertia factor of Silica Surface, greatly strengthen the adhesive strength between silica gel and PET, solve
Problem of coming unglued between silica gel and PET；It can be realized simultaneously and carry out rapid curing under the premise of ensuring the quality of production, improve
Production efficiency.
The purpose of the present invention adopts the following technical scheme that realization:
A kind of quick-binding technique of silica gel and PET characterized by comprising
Silica gel preparation process: providing a silica gel, and the binding face of silica gel is successively passed through ultrasonic cleaning step, at laser
After managing step and plasma treatment step, pretreatment silica gel is obtained；
PET preparation process: a PET is provided；
Adhesion step: the spreading glue on the binding face of pretreatment silica gel, then by the binding face of PET and pretreatment silica gel
Binding face bonded, then by pressure maintaining jig carry out pressure maintaining, after pressure maintaining jig is put into high temperature and humidity case, starting starts
Button starts rapid curing, and the temperature of control high temperature and humidity case is 30-60 DEG C, humidity 60-90%, curing time 1-3H,
After solidification, silica gel and the glued construction of PET are obtained.
Further, the concrete processing procedure of silica gel preparation process, ultrasonic cleaning step is as follows: passing through ultrasonic cleaning
Device cleans the binding face of silica gel, then dries the liquid of Silica Surface；The ultrasonic cleaning time is 10-20min, clearly
Washing temperature is 25-35 DEG C.
Further, in ultrasonic cleaning step, the ultrasonic cleaning time is 10min, and cleaning temperature is 30 DEG C.
Further, in silica gel preparation process, the concrete processing procedure of laser treatment step is as follows: by laser machine to silicon
The binding face of glue carries out laser treatment；Laser treatment is 2min, and processing power is 45% × 1000W.
Further, in silica gel preparation process, the concrete processing procedure of plasma treatment step is as follows: true by plasma
Empty machine carries out plasma treatment to the binding face of silica gel, and the processing time is 25min, and temperature is 30 DEG C.
Further, in PET preparation process, the binding face of PET is subjected to plasma treatment step.
Further, in PET preparation process, the concrete processing procedure of plasma treatment step is as follows: true by plasma
Empty machine carries out plasma treatment to the binding face of PET, and the processing time is 5min, and temperature is 30 DEG C.
Further, in adhesion step, it is desirable that pretreatment silica gel and PET are bonded in 30 minutes.
Further, in adhesion step, the temperature of control high temperature and humidity case is 50 DEG C, and humidity 90%, curing time is
2H。
Further, in adhesion step, the glue is 3145 glue of DOW CORNING.
The beneficial effects of the present invention are:
The present invention is by successively passing through the binding face of silica gel at ultrasonic cleaning step, laser treatment step and plasma
Step is managed, the inertia factor of Silica Surface is reduced, reaches and strong bonding is carried out by glue between silica gel and PET；Therefore,
The process improving of the invention inertia factor of Silica Surface, greatly strengthens the adhesive strength between silica gel and PET, solves
Problem of coming unglued between silica gel and PET；Meanwhile the present invention can reach 24H at room temperature by high temperature and humidity case 2H rapid curing
Solidification effect, production efficiency greatly improves.
Detailed description of the invention
Fig. 1 is the silica gel of embodiment 1 and the peel test photo of PET.
Fig. 2 is the silica gel of comparative example 1 and the peel test photo of PET.
Specific embodiment mode
In the following, being described further in conjunction with specific embodiment to the present invention, it should be noted that is do not collided
Under the premise of, new embodiment can be formed between various embodiments described below or between each technical characteristic in any combination.
A kind of quick-binding technique of silica gel and PET, comprising:
Silica gel preparation process: providing a silica gel, and the binding face of silica gel is successively passed through ultrasonic cleaning step, at laser
After managing step and plasma treatment step, pretreatment silica gel is obtained；
PET preparation process: a PET is provided；
Adhesion step: the spreading glue on the binding face of pretreatment silica gel, then by the binding face of PET and pretreatment silica gel
Binding face bonded, then by pressure maintaining jig carry out pressure maintaining, after pressure maintaining jig is put into high temperature and humidity case, starting starts
Button starts rapid curing, and the temperature of control high temperature and humidity case is 30-60 DEG C, humidity 60-90%, curing time 1-3H,
After solidification, silica gel and the glued construction of PET are obtained.
As the mode that further carries out, the temperature that high temperature and humidity case is controlled in adhesion step is 50 DEG C, humidity 90%,
Curing time is 2H.
The present invention passes through selection assessment, and selected 3145 glue of DOW CORNING, which is used as, tests glue, and this glue room temperature curing
Time at least needs 24H.This just selects this glue to carry out process improving.It is shown according to the TDS data of this glue, this
Glue mainly passes through aerial steam and is solidified, and is analysed in depth according to this clue.Focus on workshop
In terms of temperature and humidity, according to electronic product production environment standard requirements: 25 DEG C of temperature, humidity 40-60%, and this glue TDS is aobvious
Show, at least needs 24H that can just be fully cured in this environment.Therefore, cannot at room temperature to accelerate solidification, Zhi Nengtong
Crossing ancillary equipment can be only achieved, at this point, high temperature and humidity case is suggested, for changing the condition of cure of this glue.
Referring to table 1, the present invention designs liquid glue rapid curing under 30-60 degrees Celsius, the humidity of 60%-90% respectively
DOE experiment, by experiment, final temperature is 50 DEG C, humidity 90%, under the conditions of this, the solidification between silica gel and PET
Time is 2H, and high temperature and humidity case 2H rapid curing is the solidification effect that can reach 24H at room temperature, and production efficiency greatly improves.
Table 1
Concrete processing procedure as the mode that further carries out, silica gel preparation process, ultrasonic cleaning step is as follows: logical
It crosses ultrasonic cleaner to clean the binding face of silica gel, then dries the liquid of Silica Surface；The ultrasonic cleaning time
For 10-20min, cleaning temperature is 25-35 DEG C.The purpose is to reduce dust, fibers to the shadow of subsequent adhesion step for ultrasonic cleaning
It rings.
As the mode that further carries out, in ultrasonic cleaning step, the ultrasonic cleaning time is 10min, cleaning temperature
It is 30 DEG C.
The present invention verifies the parameter of silica gel ultrasonic cleaning, and concrete outcome is referring to table 2.
Table 2
As the mode that further carries out, in silica gel preparation process, the concrete processing procedure of laser treatment step is as follows: logical
It crosses laser machine and laser treatment is carried out to the binding face of silica gel；Laser treatment is 2min, and processing power is 45% × 1000W.Pass through
Laser treatment falls the silicone oil of silica gel adhesive surface exudation, and changes the molecular structure in silica gel treatment face, reduces the secondary exudation of silicone oil
Time.
Different disposal time and the corresponding peel test of processing power, concrete outcome reference in laser treatment step of the present invention
Table 3.
Table 3
| NO. | The laser treatment time | Laser treatment power | Peel test results (pet sheet face silica gel residual ratio) |
| 1 | 1min | 41% | 30% |
| 2 | 1min | 42% | 35% |
| 3 | 1min | 43% | 42% |
| 4 | 1min | 44% | 47% |
| 5 | 1min | 45% (maximum power) | 53% |
| 6 | 2min | 41% | 36% |
| 7 | 2min | 42% | 42% |
| 8 | 2min | 43% | 46% |
| 9 | 2min | 44% | 53% |
| 10 | 2min | 45% (maximum power) | 62% |
| 11 | 3min | 41% | 42% |
| 12 | 3min | 42% | 56% |
| 13 | 3min | 43% | 60% |
| 14 | 3min | 44% | 62% |
| 15 | 3min | 45% (maximum power) | 62% |
As the mode that further carries out, in silica gel preparation process, the concrete processing procedure of plasma treatment step is as follows:
Plasma treatment is carried out by binding face of the plasma vacuum machine to silica gel, the processing time is 25min, and temperature is 30 DEG C.To silicon
The adhesive surface of glue carries out plasma treatment, can close silicone oil exudation channel.
The plasma treatment different disposal time and the corresponding peel test for the treatment of temperature of the invention, concrete outcome is referring to table
4。
Table 4
As the mode that further carries out, in PET preparation process, the binding face of PET is subjected to plasma treatment step.This
Sample design, can further enhance bonding effect.
As the mode that further carries out, in PET preparation process, the concrete processing procedure of plasma treatment step is as follows:
Plasma treatment is carried out by binding face of the plasma vacuum machine to PET, the processing time is 5min, and temperature is 30 DEG C.
As the mode that further carries out, in adhesion step, it is desirable that pretreatment silica gel and PET are glued in 30 minutes
It closes.It designs in this way, the silica gel that can be avoided silica gel adhesive surface oozes out again.
Timeliness verifying (peel test) after silica gel treatment of the invention, concrete outcome is referring to table 5.
Table 5
| NO. | Bond the time | Peel test results (pet sheet face silica gel residual ratio) |
| 1 | 10min | 95% |
| 2 | 30min | 93% |
| 3 | 1H | 90% |
| 4 | 1H30min | 89% |
| 5 | 2H | 88% |
| 6 | 2H30min | 85% |
As the mode that further carries out, in adhesion step, the glue is 3145 glue of DOW CORNING.
Specific embodiment of the present invention when following, used raw material, equipment etc. remove special limit in the following embodiments
It can be obtained by buying pattern outside fixed.
Embodiment 1:
A kind of quick-binding technique of silica gel and PET, comprising:
Silica gel preparation process: providing a silica gel, and the binding face of silica gel is successively passed through ultrasonic cleaning step, at laser
After managing step and plasma treatment step, pretreatment silica gel is obtained；The concrete processing procedure of ultrasonic cleaning step is as follows: passing through
Ultrasonic cleaner cleans the binding face of silica gel, then dries the liquid of Silica Surface；The ultrasonic cleaning time is
10min, cleaning temperature are 30 DEG C；The concrete processing procedure of laser treatment step is as follows: by laser machine to the binding face of silica gel
Carry out laser treatment；Laser treatment is 2min, and processing power is 45% × 1000W.The specific of plasma treatment step processes
Journey is as follows: carrying out plasma treatment by binding face of the plasma vacuum machine to silica gel, the processing time is 25min, temperature 30
℃。
PET preparation process: a PET is provided；The binding face of PET is subjected to plasma treatment step.Plasma treatment step
Rapid concrete processing procedure is as follows: by plasma vacuum machine to the binding face progress plasma treatment of PET, the processing time is
5min, temperature are 30 DEG C.
Adhesion step: pretreatment silica gel binding face on smear 3145 glue of DOW CORNING, then by the binding face of PET with
The binding face of pretreatment silica gel is bonded, and then carries out pressure maintaining by pressure maintaining jig, pressure maintaining jig is put into high temperature and humidity case
Afterwards, start start button, start rapid curing, the temperature of control high temperature and humidity case is 50 DEG C, and humidity 90%, curing time is
2H after solidification, obtains silica gel and the glued construction of PET.
Referring to Fig.1, the peel test photo of the glued construction of the silica gel and PET of the present embodiment, it can be seen that silica gel is whole
Remain on PET, can not remove at all；Illustrate that the adhesive strength between silica gel and PET is good.
Table 6 is the glued construction of silica gel and PET after 1 batch of the adhesion technique preparation of the present embodiment is produced as a trial respectively
Peel test results can not be removed, unless by silicon at all in terms of 1 batch trial production peel test results between silica gel and PET
Glue tearing can tear silica gel from pet sheet face.To guarantee enough silica gel and PET adhesive strength, commented by researching and developing meeting
Estimate, default peel test (destructive testing) pet sheet face silica gel tearing residual ratio is greater than 70%, according to the stripping of 1 batch
From as a result, pet sheet face residual silica gel be all larger than 80%, meet design requirement.
Table 6
Comparative example 1:
A kind of adhesion technique of silica gel and PET, comprising:
Silica gel preparation process: providing a silica gel, and the binding face of silica gel is successively passed through ultrasonic cleaning step, at laser
After managing step and plasma treatment step, pretreatment silica gel is obtained；The concrete processing procedure of ultrasonic cleaning step is as follows: passing through
Ultrasonic cleaner cleans the binding face of silica gel, then dries the liquid of Silica Surface；The ultrasonic cleaning time is
10min, cleaning temperature are 30 DEG C；The concrete processing procedure of laser treatment step is as follows: by laser machine to the binding face of silica gel
Carry out laser treatment；Laser treatment is 2min, and processing power is 45% × 1000W.The specific of plasma treatment step processes
Journey is as follows: carrying out plasma treatment by binding face of the plasma vacuum machine to silica gel, the processing time is 25min, temperature 30
℃。
PET preparation process: a PET is provided；The binding face of PET is passed through into plasma treatment step.Plasma treatment step
Rapid concrete processing procedure is as follows: by plasma vacuum machine to the binding face progress plasma treatment of PET, the processing time is
5min, temperature are 30 DEG C.
Adhesion step: pretreatment silica gel binding face on smear 3145 glue of DOW CORNING, then by the binding face of PET with
The binding face of pretreatment silica gel is bonded, and is then solidified, obtains silica gel and the glued construction of PET.It is required that pretreatment silicon
Glue and PET are bonded in 30 minutes, and cured concrete processing procedure is as follows: being solidified under room temperature environment, curing time is
24 hours, 25 DEG C of solidification temperature, solidification humidity 60%RH.
Referring to Fig. 2, the peel test photo of the glued construction of the silica gel and PET of this comparative example, it can be seen that silica gel is whole
Remain on PET, can not remove at all；Illustrate that the adhesive strength between silica gel and PET is good.
Table 7 is the glued construction of silica gel and PET after 1 batch of the adhesion technique preparation of the present embodiment is produced as a trial respectively
Peel test results can not be removed, unless by silicon at all in terms of 1 batch trial production peel test results between silica gel and PET
Glue tearing can tear silica gel from pet sheet face.To guarantee enough silica gel and PET adhesive strength, commented by researching and developing meeting
Estimate, default peel test (destructive testing) pet sheet face silica gel tearing residual ratio is greater than 70%, according to the stripping of 1 batch
From as a result, pet sheet face residual silica gel be all larger than 80%, meet design requirement.
Table 7
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. the quick-binding technique of a kind of silica gel and PET characterized by comprising
Silica gel preparation process: providing a silica gel, the binding face of silica gel is successively passed through ultrasonic cleaning step, laser treatment walks
After rapid and plasma treatment step, pretreatment silica gel is obtained；
PET preparation process: a PET is provided；
Adhesion step: the spreading glue on the binding face of pretreatment silica gel, then by the patch of the binding face of PET and pretreatment silica gel
Conjunction face is bonded, then by pressure maintaining jig carry out pressure maintaining, after pressure maintaining jig is put into high temperature and humidity case, starting start by
Button starts rapid curing, and the temperature of control high temperature and humidity case is 30-60 DEG C, humidity 60-90%, curing time 1-3H, Gu
After change, silica gel and the glued construction of PET are obtained.
2. the quick-binding technique of silica gel as described in claim 1 and PET, which is characterized in that silica gel preparation process, ultrasonic wave
The concrete processing procedure of cleaning step is as follows: being cleaned by binding face of the ultrasonic cleaner to silica gel, then by silica gel
The liquid on surface is dried；The ultrasonic cleaning time is 10-20min, and cleaning temperature is 25-35 DEG C.
3. the quick-binding technique of silica gel as claimed in claim 2 and PET, which is characterized in that in ultrasonic cleaning step, surpass
Sound wave scavenging period is 10min, and cleaning temperature is 30 DEG C.
4. the quick-binding technique of silica gel as described in claim 1 and PET, which is characterized in that in silica gel preparation process, laser
The concrete processing procedure of processing step is as follows: carrying out laser treatment by binding face of the laser machine to silica gel；Laser treatment is
2min, processing power are 45% × 1000W.
5. the quick-binding technique of silica gel as described in claim 1 and PET, which is characterized in that in silica gel preparation process, wait from
The concrete processing procedure of subprocessing step is as follows: carrying out plasma treatment, place by binding face of the plasma vacuum machine to silica gel
The reason time is 25min, and temperature is 30 DEG C.
6. the quick-binding technique of silica gel as described in claim 1 and PET, which is characterized in that in PET preparation process, by PET
Binding face carry out plasma treatment step.
7. the quick-binding technique of silica gel as claimed in claim 6 and PET, which is characterized in that in PET preparation process, wait from
The concrete processing procedure of subprocessing step is as follows: carrying out plasma treatment, processing by binding face of the plasma vacuum machine to PET
Time is 5min, and temperature is 30 DEG C.
8. the quick-binding technique of silica gel as described in claim 1 and PET, which is characterized in that in adhesion step, it is desirable that pre- place
Reason silica gel and PET are bonded in 30 minutes.
9. the quick-binding technique of silica gel as described in claim 1 and PET, which is characterized in that in adhesion step, adhesion step
In, the temperature of control high temperature and humidity case is 50 DEG C, humidity 90%, curing time 2H.
10. the quick-binding technique of silica gel as described in claim 1 and PET, which is characterized in that in adhesion step, the glue
Water is 3145 glue of DOW CORNING.
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2018
- 2018-09-25 CN CN201811114152.9A patent/CN109401646A/en active Pending
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|---|---|---|---|---|
| CN105622968A (en) * | 2016-03-16 | 2016-06-01 | 深圳市合川科技有限公司 | Silicone rubber and hot melt adhesive adhesion method |
| CN108410372A (en) * | 2018-04-03 | 2018-08-17 | 苏州睿研纳米医学科技有限公司 | The adhering method and silicon rubber bond of silicon rubber |
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| 中国工程塑料工业协会: "《工程塑料实用手册》", 30 November 2005, 亚洲国际出版集团（香港）有限公司 * |
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