CN109397833A - Method for improving adhesive force of silica gel and PU (polyurethane) composite cloth - Google Patents
Method for improving adhesive force of silica gel and PU (polyurethane) composite cloth Download PDFInfo
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- CN109397833A CN109397833A CN201811113765.0A CN201811113765A CN109397833A CN 109397833 A CN109397833 A CN 109397833A CN 201811113765 A CN201811113765 A CN 201811113765A CN 109397833 A CN109397833 A CN 109397833A
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- Prior art keywords
- silica gel
- hot
- compound fabric
- gel piece
- melt adhesive
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1207—Heat-activated adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1207—Heat-activated adhesive
- B32B2037/1215—Hot-melt adhesive
- B32B2037/1223—Hot-melt adhesive film-shaped
Abstract
The invention discloses a method for improving the adhesive force of silica gel and PU composite cloth, which comprises the following steps: and (3) vulcanizing: vulcanizing the silica gel sheet to obtain a vulcanized silica gel sheet; surface destruction: spraying a bridging agent on the surface of the vulcanized silica gel sheet; pre-burying thermosol: baking the silica gel sheet subjected to the surface damage step for the first time, then putting a first hot melt adhesive sheet into the silica gel sheet, and baking again to obtain the silica gel sheet with the pre-embedded hot melt adhesive; cutting: cutting the PU composite cloth and the second hot-melt adhesive sheet into required size and shape; hot-press bonding: and placing the second hot-melt adhesive sheet between the PU composite cloth and the silica gel sheet with the pre-embedded hot-melt adhesive, and performing hot-press bonding. The invention solves the problem of oil leakage on the surface of the silica gel, and has the advantages of firm bonding, difficult glue failure and stable silica gel surface; and the bonding process can be simplified, and the production efficiency is improved.
Description
Technical field
The present invention relates to the silica gel technical field Nian Jie with PU Compound Fabric more particularly to a kind of raising silica gel and PU Compound Fabrics
The method of bonding force.
Background technique
In the prior art, Yao Shixian silica gel and PU Compound Fabric are bonded, generally can be first with radium-shine and plasma treatment
Mode clears up the surface of silica gel, then adds hot melt adhesive between silica gel and PU Compound Fabric, by three by heat pressure adhesive, is allowed to
As an entirety.But radium-shine processing generally requires 2 minutes, plasma treatment generally requires 1.5 minutes, takes a long time, sternly
Ghost image rings production efficiency；And using the method for the prior art, silica gel passes through radium-shine processing and plasma treatment, often will appear
It is Silica Surface permeability, unstable, cause after being bonded with hot melt adhesive, bond it is insecure, silica gel with PU Compound Fabric is segregative asks
Topic.
Summary of the invention
For overcome the deficiencies in the prior art, it is an object of the invention to: a kind of raising silica gel is provided and PU Compound Fabric is viscous
The problem of method of relay, which solve Silica Surface permeabilitys, silica gel and PU Compound Fabric bond by this method, have bonding
Securely, it is not easy the advantage come unglued, Silica Surface is stable；And the technique of silica gel and PU composite cloth adhesive can be simplified, improve life
Produce efficiency.
The purpose of the present invention adopts the following technical scheme that realization:
A method of improving silica gel and PU Compound Fabric bonding force, which comprises the following steps:
The step of vulcanization: selection silica gel piece vulcanizes silica gel piece, obtains vulcanization silica gel piece；
The step of surface breakdown: bridging agent is sprayed on the surface of the vulcanization silica gel piece；
The step of pre-buried thermosol: the silica gel piece of the step of by the surface breakdown is toasted for the first time, is then existed
It is put into the first hot-melt film inside silica gel piece, is toasted again, the silica gel piece of pre-buried hot melt adhesive is obtained；
The step of cutting: PU Compound Fabric and the second hot-melt film are cut into the size and shape of needs；
The step of heat pressure adhesive: the second hot-melt film is placed in the silica gel of the PU Compound Fabric and the pre-buried hot melt adhesive
Between piece, heat pressure adhesive is carried out.
Further, in the step of pre-buried thermosol, baking is carried out in baking box, and the temperature toasted for the first time is
100 DEG C -120 DEG C, baking time is 20-30 minutes；The temperature toasted again is 170 DEG C -200 DEG C, and baking time is 20-25 points
Clock.
Further, between the step of pre-buried thermosol and described the step of cutting, include the steps that dry: to
After the silica gel piece of the pre-buried hot melt adhesive is cooling, toasted.
Further, in the step of the drying, baking is carried out in baking box, and baking temperature is 150 DEG C -180
DEG C, the time of baking is 0.5-1.5 hours.
Further, in the step of the drying, the cooling time is 5-15 minutes.
Further, in the step of heat pressure adhesive, the upper mold of hot pressing die is first preheated；The temperature of preheating is
110℃-130℃；The time of heat pressure adhesive is 5S-15S.
Further, in the step of vulcanization, silica gel piece selects platinum silica gel piece, and the curing temperature of silica gel piece is 100
℃-120℃。
Further, in the step of pre-buried thermosol, the first hot melt adhesive is the hot melt adhesive of high-temperature resistant soft；It is described
In the step of cutting, the second hot-melt film is the hot melt adhesive of high-temperature resistant soft.
It further, further include silica gel piece to the pre-buried hot melt adhesive, the PU Compound Fabric in described the step of cutting
It is punched with second hot-melt film, obtains silica gel piece, PU Compound Fabric and the second hot melt adhesive of pre-buried hot melt adhesive with holes
Piece.
Further, described the step of cutting and the step of the heat pressure adhesive between, further include placing flexible circuit board
The step of: flexible circuit board is placed in inside the silica gel piece of pre-buried hot melt adhesive with holes, the connecting component on flexible circuit board
The hole passed sequentially through on the silica gel piece, the second hot-melt film and PU Compound Fabric of pre-buried hot melt adhesive is connect with the external world.
Compared with prior art, the beneficial effects of the present invention are:
1. the present invention inside silica gel piece by being put into the first hot-melt film, so that the first hot melt adhesive is embedded in silica gel piece
Inside, the first hot melt adhesive combines together with silica gel piece, after silica gel and PU composite cloth adhesive, can be effectively prevented silica gel and go out
Existing permeability phenomenon, so that the stability for improving Silica Surface is less prone to out so that silica gel is not easily separate with PU Compound Fabric
Glue phenomenon.
2. the present invention does not need to carry out radium-shine and plasma treatment to silica gel yet, technique, easy to operate, production effect are simplified
Rate is greatly improved.
Specific embodiment
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.It is adopted
Equipment and raw material etc. are commercially available or commonly used in the art.Method in following embodiments, such as nothing are especially said
It is bright, it is the conventional method of this field.
A method of improving silica gel and PU Compound Fabric bonding force, comprising the following steps:
The step of vulcanization: selection silica gel piece vulcanizes silica gel piece, curing temperature drops to 100 DEG C -120 DEG C and obtains
Vulcanize silica gel piece；
The step of surface breakdown: bridging agent is sprayed on the surface of vulcanization silica gel piece；Frame is sprayed on the surface of vulcanization silica gel piece
Bridge agent can make silica gel and hot melt adhesive that stronger, silica gel be combined to be not easy to be detached from from PU Compound Fabric.
The step of pre-buried thermosol: the silica gel piece of the step of by surface breakdown is toasted for the first time, the silicon toasted
Glue is some semi-ripe condition, and the first hot-melt film is then put into inside silica gel piece, is toasted again, obtains the silicon of pre-buried hot melt adhesive
Film；In the silica gel piece of pre-buried hot melt adhesive, silica gel and hot melt adhesive combine together, can effectively prevent silica gel permeability, improve silica gel
Stability.
The step of cutting: PU Compound Fabric and the second hot-melt film are cut into the size and shape of needs；
The step of heat pressure adhesive: the second hot-melt film is placed between PU Compound Fabric and the silica gel piece of pre-buried hot melt adhesive,
Carry out heat pressure adhesive.
As further embodiment, the step of pre-buried thermosol in, baking is carried out in baking box, is toasted for the first time
Temperature be 100 DEG C -120 DEG C, baking time be 20-30 minutes；The temperature toasted again is 170 DEG C -200 DEG C, baking time
It is 20-25 minutes.
It further include dry step the step of pre-buried thermosol between the step of of cutting as further embodiment
It is rapid: after the silica gel piece of pre-buried hot melt adhesive is cooling, to be toasted.
As further embodiment, in dry step, baking is carried out in baking box, and baking temperature is
150 DEG C -180 DEG C, the time of baking is 0.5-1.5 hours.
As further embodiment, in dry step, the cooling time is 5-15 minutes.
As further embodiment, the step of heat pressure adhesive in, the upper mold of hot pressing die is first preheated；Preheating
Temperature is 110 DEG C -130 DEG C；The time of heat pressure adhesive is 5S-15S.
As further embodiment, the step of vulcanization in, silica gel piece selects platinum silica gel piece, the vulcanization temperature of silica gel piece
Degree is 100 DEG C -120 DEG C.Platinum silica gel piece has participated in platinum material in silica gel, can reduce the curing temperature of silica gel；And
It can be used for FDA food-grade environment-friendly products.
As further embodiment, the step of pre-buried thermosol in, the first hot melt adhesive is the heat of high-temperature resistant soft
Melten gel；In the step of cutting, the second hot-melt film is the hot melt adhesive of high-temperature resistant soft.
It further include silica gel piece to pre-buried hot melt adhesive, PU Compound Fabric in the step of cutting as further embodiment
It is punched with the second hot-melt film, obtains silica gel piece, PU Compound Fabric and the second hot-melt film of pre-buried hot melt adhesive with holes.It cuts out
It cuts and uses laser cutter mould.
As further embodiment, the step of the step of cutting and heat pressure adhesive between, further include placing flexible electrical
The step of road plate: flexible circuit board being placed in inside the silica gel piece of pre-buried hot melt adhesive with holes, the connection on flexible circuit board
Component passes sequentially through the hole in the silica gel piece of pre-buried hot melt adhesive, the second hot-melt film and PU Compound Fabric and connect with the external world.
Embodiment 1:
A method of improving silica gel and PU Compound Fabric bonding force, comprising the following steps:
The step of vulcanization: selection platinum silica gel piece vulcanizes platinum silica gel piece, and curing temperature is 120 DEG C, obtains sulphur
SiClx film；
The step of surface breakdown: the tasteless bridging agent of KE-30 is sprayed on the surface of vulcanization silica gel piece；
The step of pre-buried thermosol: the silica gel piece of the step of by surface breakdown is dried for the first time in high-temperature baking case
Roasting, the temperature of baking is 100 DEG C, and baking time is 20 minutes；By silica gel baking to some semi-ripe condition, then put inside silica gel piece
The first hot-melt film for entering high-temperature resistant soft, is toasted again in high-temperature baking case, and the temperature of baking is 170 DEG C, is dried
The roasting time is 20 minutes；Obtain the silica gel piece of pre-buried hot melt adhesive；
Dry step: the silica gel piece cooling to pre-buried hot melt adhesive is put into high-temperature baking case and is toasted after five minutes,
Baking temperature is 150 DEG C, and the time of baking is 0.5 hour；
The step of cutting: the second hot-melt film of PU Compound Fabric and high-temperature resistant soft is cut into the size and shape of needs
Shape；
The step of heat pressure adhesive: the second hot-melt film is placed between PU Compound Fabric and the silica gel piece of pre-buried hot melt adhesive；
The upper mold of hot pressing die is first preheated, and being preheated to temperature is 110 DEG C, then heat pressure adhesive 5S.
Embodiment 2:
A method of improving silica gel and PU Compound Fabric bonding force, comprising the following steps:
The step of vulcanization: selection platinum silica gel piece vulcanizes platinum silica gel piece, and curing temperature is 100 DEG C, obtains sulphur
SiClx film；
The step of surface breakdown: bridging agent is sprayed on the surface of vulcanization silica gel piece；
The step of pre-buried thermosol: the silica gel piece of the step of by surface breakdown is dried for the first time in high-temperature baking case
Roasting, the temperature of baking is 120 DEG C, and baking time is 30 minutes；By silica gel baking to some semi-ripe condition, then put inside silica gel piece
The first hot-melt film for entering high-temperature resistant soft, is toasted again in high-temperature baking case, and the temperature of baking is 200 DEG C, is dried
The roasting time is 25 minutes；Obtain the silica gel piece of pre-buried hot melt adhesive；
Dry step: after the silica gel piece of pre-buried hot melt adhesive is 15 minutes cooling, putting into high-temperature baking case and toasted,
Baking temperature is 180 DEG C, and the time of baking is 1.5 hours；
The step of cutting: the second hot-melt film of PU Compound Fabric and high-temperature resistant soft is cut into the size and shape of needs
Shape；
The step of heat pressure adhesive: the second hot-melt film is placed between PU Compound Fabric and the silica gel piece of pre-buried hot melt adhesive；
The upper mold of hot pressing die is first preheated, and being preheated to temperature is 130 DEG C, then heat pressure adhesive 15S.
Embodiment 3:
A method of improving silica gel and PU Compound Fabric bonding force, comprising the following steps:
The step of vulcanization: selection platinum silica gel piece vulcanizes platinum silica gel piece, and curing temperature is 110 DEG C, obtains sulphur
SiClx film；
The step of surface breakdown: bridging agent is sprayed on the surface of vulcanization silica gel piece；
The step of pre-buried thermosol: the silica gel piece of the step of by surface breakdown is dried for the first time in high-temperature baking case
Roasting, the temperature of baking is 110 DEG C, and baking time is 25 minutes；By silica gel baking to some semi-ripe condition, then put inside silica gel piece
The first hot-melt film for entering high-temperature resistant soft, is toasted again in high-temperature baking case, and the temperature of baking is 190 DEG C, is dried
The roasting time is 22 minutes；Obtain the silica gel piece of pre-buried hot melt adhesive；
Dry step: the silica gel piece cooling to pre-buried hot melt adhesive is put into high-temperature baking case and is toasted after ten minutes,
Baking temperature is 165 DEG C, and the time of baking is 1 hour；
The step of cutting: the second hot-melt film of PU Compound Fabric and high-temperature resistant soft is cut into the size and shape of needs
Shape；
The step of heat pressure adhesive: the second hot-melt film is placed between PU Compound Fabric and the silica gel piece of pre-buried hot melt adhesive；
The upper mold of hot pressing die is first preheated, and being preheated to temperature is 120 DEG C, then heat pressure adhesive 10S.
Embodiment 4:
A method of improving silica gel and PU Compound Fabric bonding force, comprising the following steps:
The step of vulcanization: selection platinum silica gel piece vulcanizes platinum silica gel piece, and curing temperature is 120 DEG C, obtains sulphur
SiClx film；
The step of surface breakdown: the tasteless bridging agent of KE-30 is sprayed on the surface of vulcanization silica gel piece；
The step of pre-buried thermosol: the silica gel piece of the step of by surface breakdown is dried for the first time in high-temperature baking case
Roasting, the temperature of baking is 100 DEG C, and baking time is 20 minutes；By silica gel baking to some semi-ripe condition, then put inside silica gel piece
The first hot-melt film for entering high-temperature resistant soft, is toasted again in high-temperature baking case, and the temperature of baking is 170 DEG C, is dried
The roasting time is 20 minutes；Obtain the silica gel piece of pre-buried hot melt adhesive；
Dry step: the silica gel piece cooling to pre-buried hot melt adhesive is put into high-temperature baking case and is toasted after five minutes,
Baking temperature is 150 DEG C, and the time of baking is 0.5 hour；
The step of cutting: the second hot-melt film of PU Compound Fabric and high-temperature resistant soft is cut into the size and shape of needs
Shape；The silica gel piece of the pre-buried hot melt adhesive, the PU Compound Fabric and second hot-melt film are punched, obtained with holes
Silica gel piece, PU Compound Fabric and the second hot-melt film of pre-buried hot melt adhesive；
The step of placing flexible circuit board: flexible circuit board being placed in inside the silica gel piece of pre-buried hot melt adhesive with holes,
Connecting component on flexible circuit board passes sequentially through the hole in the silica gel piece of pre-buried hot melt adhesive, the second hot-melt film and PU Compound Fabric
It is connect with the external world；
The step of heat pressure adhesive: the second hot-melt film is placed between PU Compound Fabric and the silica gel piece of pre-buried hot melt adhesive；
The upper mold of hot pressing die is first preheated, and being preheated to temperature is 110 DEG C, then heat pressure adhesive 5S.
Embodiment 5:
A method of improving silica gel and PU Compound Fabric bonding force, comprising the following steps:
The step of vulcanization: selection platinum silica gel piece vulcanizes platinum silica gel piece, and curing temperature is 100 DEG C, obtains sulphur
SiClx film；
The step of surface breakdown: bridging agent is sprayed on the surface of vulcanization silica gel piece；
The step of pre-buried thermosol: the silica gel piece of the step of by surface breakdown is dried for the first time in high-temperature baking case
Roasting, the temperature of baking is 120 DEG C, and baking time is 30 minutes；By silica gel baking to some semi-ripe condition, then put inside silica gel piece
The first hot-melt film for entering high-temperature resistant soft, is toasted again in high-temperature baking case, and the temperature of baking is 200 DEG C, is dried
The roasting time is 25 minutes；Obtain the silica gel piece of pre-buried hot melt adhesive；
Dry step: after the silica gel piece of pre-buried hot melt adhesive is 15 minutes cooling, putting into high-temperature baking case and toasted,
Baking temperature is 180 DEG C, and the time of baking is 1.5 hours；
The step of cutting: the second hot-melt film of PU Compound Fabric and high-temperature resistant soft is cut into the size and shape of needs
Shape；The silica gel piece of the pre-buried hot melt adhesive, the PU Compound Fabric and second hot-melt film are punched, obtained with holes
Silica gel piece, PU Compound Fabric and the second hot-melt film of pre-buried hot melt adhesive；
The step of placing flexible circuit board: flexible circuit board being placed in inside the silica gel piece of pre-buried hot melt adhesive with holes,
Connecting component on flexible circuit board passes sequentially through the hole in the silica gel piece of pre-buried hot melt adhesive, the second hot-melt film and PU Compound Fabric
It is connect with the external world；
The step of heat pressure adhesive: the second hot-melt film is placed between PU Compound Fabric and the silica gel piece of pre-buried hot melt adhesive；
The upper mold of hot pressing die is first preheated, and being preheated to temperature is 130 DEG C, then heat pressure adhesive 15S.
Embodiment 6:
A method of improving silica gel and PU Compound Fabric bonding force, comprising the following steps:
The step of vulcanization: selection platinum silica gel piece vulcanizes platinum silica gel piece, and curing temperature is 110 DEG C, obtains sulphur
SiClx film；
The step of surface breakdown: bridging agent is sprayed on the surface of vulcanization silica gel piece；
The step of pre-buried thermosol: the silica gel piece of the step of by surface breakdown is dried for the first time in high-temperature baking case
Roasting, the temperature of baking is 110 DEG C, and baking time is 25 minutes；By silica gel baking to some semi-ripe condition, then put inside silica gel piece
The first hot-melt film for entering high-temperature resistant soft, is toasted again in high-temperature baking case, and the temperature of baking is 190 DEG C, is dried
The roasting time is 22 minutes；Obtain the silica gel piece of pre-buried hot melt adhesive；
Dry step: the silica gel piece cooling to pre-buried hot melt adhesive is put into high-temperature baking case and is toasted after ten minutes,
Baking temperature is 165 DEG C, and the time of baking is 1 hour；
The step of cutting: the second hot-melt film of PU Compound Fabric and high-temperature resistant soft is cut into the size and shape of needs
Shape；The silica gel piece of the pre-buried hot melt adhesive, the PU Compound Fabric and second hot-melt film are punched, obtained with holes
Silica gel piece, PU Compound Fabric and the second hot-melt film of pre-buried hot melt adhesive；
The step of placing flexible circuit board: flexible circuit board being placed in inside the silica gel piece of pre-buried hot melt adhesive with holes,
Connecting component on flexible circuit board passes sequentially through the hole in the silica gel piece of pre-buried hot melt adhesive, the second hot-melt film and PU Compound Fabric
It is connect with the external world；
The step of heat pressure adhesive: the second hot-melt film is placed between PU Compound Fabric and the silica gel piece of pre-buried hot melt adhesive；
The upper mold of hot pressing die is first preheated, and being preheated to temperature is 120 DEG C, then heat pressure adhesive 10S.
Comparative example 1-2:
Comparative example 1-2 is the silica gel piece bonded by the prior art and PU Compound Fabric,
Comparative example 1 first radium-shine 2 minutes, and comparative example 2 is then first to be handled 1.5 minutes with the method for ion；
Then hot melt adhesive is added between silica gel and PU Compound Fabric, by three's heat pressure adhesive.
Verify embodiment:
Peel test force is carried out to embodiment 1-6, comparative example 1-2, to verify beneficial effects of the present invention.
Test method: by the silica gel and PU Compound Fabric that are bonded with the method for embodiment 1-6, comparative example 1-2 use first hand into
Row removing, then puts into stripping machine and carries out peeling with machine, and two ends of silica gel are recorded in stripping process from PU Compound Fabric
The maximal force and average force value of removing；Two ends of silica gel are referred to as end 1 and end 2 in test result；
Result judgement: average force value is greater than 10N, and the removing force value of two ends of silica gel is all larger than 10N, then it is assumed that using should
The silica gel and PU Compound Fabric of method bonding pass through test；Average force value is less than any end in two ends of 10N or silica gel
Force value is less than 10N, then it is assumed that the silica gel and PU Compound Fabric bonded with this method does not pass through test.The residual of silica gel in PU Compound Fabric
Ratio is higher, and selecting indicates that silica gel must be more secured with PU composite cloth adhesive.
Test result: embodiment 1-6, comparative example 1-2 test result be shown in Table 1.
Table 1 is the test result of embodiment 1-6, comparative example 1-2:
As it can be seen from table 1 the peel test force of embodiment 1-6 is qualified, qualification rate is more stable, so embodiment 1-6
Method can effectively improve the bonding force of silica gel and PU Compound Fabric；Relative to comparative example 1-2, the qualification rate of embodiment 1-6
It is significantly higher, it can reduce and do over again, improving production efficiency.
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. a kind of method for improving silica gel and PU Compound Fabric bonding force, which comprises the following steps:
The step of vulcanization: selection silica gel piece vulcanizes silica gel piece, obtains vulcanization silica gel piece；
The step of surface breakdown: bridging agent is sprayed on the surface of the vulcanization silica gel piece；
The step of pre-buried thermosol: the silica gel piece of the step of by the surface breakdown is toasted for the first time, then in silica gel
It is put into the first hot-melt film inside piece, is toasted again, the silica gel piece of pre-buried hot melt adhesive is obtained；
The step of cutting: PU Compound Fabric and the second hot-melt film are cut into the size and shape of needs；
The step of heat pressure adhesive: by the second hot-melt film be placed in the PU Compound Fabric and the pre-buried hot melt adhesive silica gel piece it
Between, carry out heat pressure adhesive.
2. the method according to claim 1 for improving silica gel and PU Compound Fabric bonding force, which is characterized in that the pre-buried heat
In the step of colloidal sol, baking is carried out in baking box, and the temperature toasted for the first time is 100 DEG C -120 DEG C, baking time 20-30
Minute；The temperature toasted again is 170 DEG C -200 DEG C, and baking time is 20-25 minutes.
3. the method according to claim 1 for improving silica gel and PU Compound Fabric bonding force, which is characterized in that the pre-buried heat
Between the step of colloidal sol and described the step of cutting, include the steps that dry: the silica gel piece to the pre-buried hot melt adhesive is cooling
Afterwards, it is toasted.
4. the method according to claim 3 for improving silica gel and PU Compound Fabric bonding force, which is characterized in that the drying
In step, baking is carried out in baking box, and baking temperature is 150 DEG C -180 DEG C, and the time of baking is 0.5-1.5 hours.
5. the method according to claim 3 for improving silica gel and PU Compound Fabric bonding force, which is characterized in that the drying
In step, the cooling time is 5-15 minutes.
6. the method according to claim 1 for improving silica gel and PU Compound Fabric bonding force, which is characterized in that the hot pressing is viscous
In the step of conjunction, the upper mold of hot pressing die is first preheated；The temperature of preheating is 110 DEG C -130 DEG C；The time of heat pressure adhesive is
5S-15S。
7. the method according to claim 1 for improving silica gel and PU Compound Fabric bonding force, which is characterized in that the vulcanization
In step, silica gel piece selects platinum silica gel piece, and the curing temperature of silica gel piece is 100 DEG C -120 DEG C.
8. the method according to claim 1 for improving silica gel and PU Compound Fabric bonding force, which is characterized in that the pre-buried heat
In the step of colloidal sol, the first hot melt adhesive is the hot melt adhesive of high-temperature resistant soft；In described the step of cutting, the second hot-melt film is
The hot melt adhesive of high-temperature resistant soft.
9. the method according to claim 1 for improving silica gel and PU Compound Fabric bonding force, which is characterized in that described to cut
It further include that the silica gel piece to the pre-buried hot melt adhesive, the PU Compound Fabric and second hot-melt film punch in step,
Obtain silica gel piece, PU Compound Fabric and the second hot-melt film of pre-buried hot melt adhesive with holes.
10. the method according to claim 9 for improving silica gel and PU Compound Fabric bonding force, which is characterized in that described to cut
The step of and the step of the heat pressure adhesive between, further include the steps that placing flexible circuit board: flexible circuit board be placed in
Inside the silica gel piece of pre-buried hot melt adhesive with holes, the connecting component on flexible circuit board passes sequentially through the silica gel of pre-buried hot melt adhesive
Hole in piece, the second hot-melt film and PU Compound Fabric is connect with the external world.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811113765.0A CN109397833B (en) | 2018-09-25 | 2018-09-25 | Method for improving adhesive force of silica gel and PU (polyurethane) composite cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811113765.0A CN109397833B (en) | 2018-09-25 | 2018-09-25 | Method for improving adhesive force of silica gel and PU (polyurethane) composite cloth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109397833A true CN109397833A (en) | 2019-03-01 |
| CN109397833B CN109397833B (en) | 2021-01-15 |
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Citations (7)
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| US20060121243A1 (en) * | 2004-12-06 | 2006-06-08 | Silitech Technology Corp. | Surface bonding method for PET film and silica gel buttons and a manufactured article of the same |
| US8323800B2 (en) * | 2009-06-09 | 2012-12-04 | Schott Corporation | Method of bonding to gold surface and resultant combinations |
| CN103665882A (en) * | 2012-09-19 | 2014-03-26 | 浙江三元电子科技有限公司 | Heat conduction silicon rubber composite material, heat conduction silicon sheet and preparation method of heat conduction silicon sheet |
| JP2016204518A (en) * | 2015-04-22 | 2016-12-08 | 共同印刷株式会社 | Hot melt sheet |
| CN106987210A (en) * | 2017-05-02 | 2017-07-28 | 周红梅 | It is a kind of to improve silica gel and the method for PUR cohesive force |
| CN207449266U (en) * | 2017-11-21 | 2018-06-05 | 东莞市华璋皮革制品有限公司 | A kind of polymer thermal insulative silica gel synthetic leather |
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| CN2559430Y (en) * | 2002-08-05 | 2003-07-09 | 贤泰实业股份有限公司 | Processing machine capable of instantaneously destroying and gluing to workpiece surfae |
| US20060121243A1 (en) * | 2004-12-06 | 2006-06-08 | Silitech Technology Corp. | Surface bonding method for PET film and silica gel buttons and a manufactured article of the same |
| US8323800B2 (en) * | 2009-06-09 | 2012-12-04 | Schott Corporation | Method of bonding to gold surface and resultant combinations |
| CN103665882A (en) * | 2012-09-19 | 2014-03-26 | 浙江三元电子科技有限公司 | Heat conduction silicon rubber composite material, heat conduction silicon sheet and preparation method of heat conduction silicon sheet |
| JP2016204518A (en) * | 2015-04-22 | 2016-12-08 | 共同印刷株式会社 | Hot melt sheet |
| CN106987210A (en) * | 2017-05-02 | 2017-07-28 | 周红梅 | It is a kind of to improve silica gel and the method for PUR cohesive force |
| CN207449266U (en) * | 2017-11-21 | 2018-06-05 | 东莞市华璋皮革制品有限公司 | A kind of polymer thermal insulative silica gel synthetic leather |
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| CN109397833B (en) | 2021-01-15 |
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