CN215096165U - High-humidity-resistant EVA (ethylene-vinyl acetate) intermediate film for shower room safety glass - Google Patents
High-humidity-resistant EVA (ethylene-vinyl acetate) intermediate film for shower room safety glass Download PDFInfo
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- CN215096165U CN215096165U CN202120867155.0U CN202120867155U CN215096165U CN 215096165 U CN215096165 U CN 215096165U CN 202120867155 U CN202120867155 U CN 202120867155U CN 215096165 U CN215096165 U CN 215096165U
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- film
- eva
- humidity
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- shower room
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- 239000005336 safety glass Substances 0.000 title claims abstract description 17
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 title abstract description 98
- 239000005038 ethylene vinyl acetate Substances 0.000 title abstract description 98
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 title abstract description 98
- 239000011521 glass Substances 0.000 claims abstract description 20
- 239000012528 membrane Substances 0.000 claims abstract description 11
- 239000002033 PVDF binder Substances 0.000 claims description 29
- 239000012790 adhesive layer Substances 0.000 claims description 29
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 28
- 239000010410 layer Substances 0.000 claims description 21
- 239000003292 glue Substances 0.000 claims description 18
- 229920002635 polyurethane Polymers 0.000 claims description 16
- 239000004814 polyurethane Substances 0.000 claims description 16
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 14
- 229920001296 polysiloxane Polymers 0.000 claims description 12
- 239000011229 interlayer Substances 0.000 claims description 11
- 239000004433 Thermoplastic polyurethane Substances 0.000 abstract description 27
- 229920002803 thermoplastic polyurethane Polymers 0.000 abstract description 27
- 238000000034 method Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 2
- 230000008595 infiltration Effects 0.000 abstract 1
- 238000001764 infiltration Methods 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 239000000853 adhesive Substances 0.000 description 13
- 239000002313 adhesive film Substances 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 239000002131 composite material Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000005340 laminated glass Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000003490 calendering Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000004224 protection Effects 0.000 description 2
- 239000013464 silicone adhesive Substances 0.000 description 2
- 238000010345 tape casting Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 1
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010096 film blowing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- NHARPDSAXCBDDR-UHFFFAOYSA-N propyl 2-methylprop-2-enoate Chemical compound CCCOC(=O)C(C)=C NHARPDSAXCBDDR-UHFFFAOYSA-N 0.000 description 1
- 239000002453 shampoo Substances 0.000 description 1
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Abstract
The application relates to a high-humidity-resistant EVA (ethylene vinyl acetate) intermediate film for shower room safety glass, which comprises an upper EVA film and a lower EVA film, wherein a TPU (thermoplastic polyurethane) high-humidity-resistant film is arranged between the upper EVA film and the lower EVA film. TPU resistant high wet membrane has better resistant high humidity, cohesiveness and elasticity in this application, at the in-process of shower, can effectively prevent during vapor infiltration glass's intermediate layer, prevents that the EVA intermediate film from droing, has the effect that improves the resistant high humidity of EVA intermediate film.
Description
Technical Field
The application relates to the technical field of laminated glass intermediate films, in particular to a high-humidity-resistant EVA intermediate film for shower room safety glass.
Background
EVA is a sticky adhesive film for short of polyethylene-polyvinyl acetate copolymer, and is widely used in current modules and various optical products due to its superior durability and optical properties, and is generally used in interlayer films of laminated glass.
In the related art, chinese patent with publication number CN208428752U discloses an EVA composite adhesive film, which sequentially comprises a first EVA adhesive film layer, an ultraviolet-proof film layer, a white EVA adhesive film layer, a mechanical structure layer, and a second EVA adhesive film layer from top to bottom, wherein the adjacent layers are bonded by a hot pressing method.
According to the related technology, the EVA composite adhesive film is applied to the laminated glass of the shower room, and a large amount of water vapor permeates into the interlayer of the glass in the shower process to cause the EVA composite adhesive film to fall off.
SUMMERY OF THE UTILITY MODEL
In order to prevent the EVA composite adhesive film from falling off, the application provides a high-humidity-resistant EVA intermediate film for shower room safety glass.
The application provides a shower room safety glass is with resistant high wet EVA intermediate film adopts following technical scheme:
the high-humidity-resistant EVA intermediate film for the safety glass of the shower room comprises an upper EVA film and a lower EVA film, wherein a TPU high-humidity-resistant film is arranged between the upper EVA film and the lower EVA film.
By adopting the technical scheme, the TPU high-humidity-resistant film has better high humidity resistance, cohesiveness and elasticity, and can effectively prevent water vapor from permeating into an interlayer of glass in the shower process, prevent an EVA (ethylene vinyl acetate) intermediate film from falling off and increase the high humidity resistance of the EVA intermediate film; the EVA intermediate film adopts a double-layer film structure, and the TPU high-humidity resistant film is bonded between the EVA intermediate films, so that the prepared EVA intermediate film has better integrity.
Optionally, a PVDF film is disposed between the TPU high humidity resistant film and the lower EVA film.
By adopting the technical scheme, the PVDF membrane has good heat-resistant stability, is water-resistant and most of chemical solvents, has higher permeability resistance to gas and liquid, can prevent a large amount of water vapor from entering the EVA membrane in the shower process, can also prevent corrosion of some chemical reagents in shower gel and shampoo to the EVA membrane, and further strengthens the high humidity resistance of the EVA intermediate membrane.
Optionally, a silicone glass glue layer is bonded to the surface of the lower EVA film close to the PVDF film.
By adopting the technical scheme, the silicone glass adhesive layer has stronger cohesiveness and weather resistance, has the characteristics of moisture resistance and large adaptation to cold and hot changes, can better adhere the PVDF film on the lower EVA film, prevents the PVDF film from being separated from the lower EVA film to enable the EVA intermediate film to generate bubbles, and can further strengthen the high humidity resistance of the EVA intermediate film.
Optionally, a film groove is formed in the surface, away from the lower EVA film, of the silicone glass adhesive layer, and the PVDF film is arranged in the film groove.
By adopting the technical scheme, the PVDF film is not easy to bond, the PVDF film is better bonded on the silicone glass adhesive layer through the film groove, and the stability of the EVA intermediate film is improved.
Optionally, the TPU high temperature resistant film and the PVDF film are bonded by a LOVA adhesive layer.
By adopting the technical scheme, the LOVA glue layer is formed by coating the LOVA glue, the LOVA glue has higher cohesiveness, and the PVDF film is sealed in the film groove by the LOVA glue layer, so that the PVDF film is better adhered in the film groove, and the stability of the EVA middle film is further improved; the LOVA adhesive also has higher transparency, so that the EVA intermediate film has higher light transmittance.
Optionally, an RCPP film is arranged between the TPU high humidity resistant film and the upper EVA film.
By adopting the technical scheme, the RCPP film has the advantages of light weight, high transparency, low cost, moisture resistance and high temperature resistance, and not only can improve the high moisture resistance of the EVA intermediate film, but also can improve the light transmittance of the EVA intermediate film.
Optionally, the upper EVA film and the RCPP film are bonded through an acrylate adhesive layer.
By adopting the technical scheme, the acrylate adhesive layer is formed by coating the acrylate adhesive, and the acrylate adhesive has strong adhesion and higher weather resistance, so that the EVA film and the RCPP film are better adhered, and the weather resistance of the EVA intermediate film can be further improved.
Optionally, the RCPP film and the TPU high humidity resistant film are bonded through a polyurethane adhesive layer.
By adopting the technical scheme, the polyurethane adhesive layer is formed by coating the polyurethane adhesive, has higher cohesive force and better high temperature resistance, water resistance and medium resistance, so that the RCPP film is better bonded with the TPU high humidity resistant film, and the high humidity resistance of the EVA intermediate film can be further improved.
In summary, the present application includes at least one of the following beneficial technical effects:
the TPU high-humidity-resistant film has good high humidity resistance, cohesiveness and elasticity, and can effectively prevent water vapor from permeating into an interlayer of glass in the shower process, prevent an EVA (ethylene vinyl acetate) intermediate film from falling off and increase the high humidity resistance of the EVA intermediate film; the EVA intermediate film adopts a double-layer film structure, and the TPU high-humidity resistant film is bonded between the EVA intermediate films, so that the prepared EVA intermediate film has good integrity;
2. in the application, the PVDF film has good heat-resistant stability, water resistance, most of chemical solvents and higher permeability resistance to gas and liquid, the RCPP film has light weight, high transparency, lower cost, moisture resistance and high temperature resistance, and the two films are applied to the EVA intermediate film, so that the high humidity resistance of the EVA film is improved;
the PVDF film is not easy to bond, the PVDF film is better bonded on the silicone glass adhesive layer through the film groove, and the stability of the EVA intermediate film is improved.
Drawings
Fig. 1 is a schematic sectional view of the entire structure of the present embodiment.
Description of reference numerals: 1. coating an EVA film; 2. an acrylate adhesive layer; 3. an RCPP film; 4. a polyurethane adhesive layer; 5. TPU high humidity resistant films; 6. a LOVA adhesive layer; 7. a PVDF membrane; 8. a silicone glass glue layer; 81. a film groove; 9. and (5) lower EVA film.
Detailed Description
The present application is described in further detail below with reference to fig. 1.
The embodiment of the application discloses a high-humidity-resistant EVA (ethylene-vinyl acetate) intermediate film for shower room safety glass.
Referring to fig. 1, the high-humidity resistant EVA intermediate film for the shower room safety glass comprises an upper EVA film 1 and a lower EVA film 9, wherein the upper EVA film 1 and the lower EVA film 9 are consistent in size and are oppositely arranged, and an acrylate adhesive layer 2, an RCPP (transparent conductive polypropylene) film 3, a polyurethane adhesive layer 4, a TPU (thermoplastic polyurethane) high-humidity resistant film 5, a LOVA adhesive layer 6, a PVDF (polyvinylidene fluoride) film 7 and a silicone glass adhesive layer 8 are sequentially arranged between the upper EVA film 1 and the lower EVA film 9.
Referring to fig. 1, an acrylate adhesive layer 2 is formed by coating an acrylate adhesive and purchased from Shandong Lin-26384m, and the acrylate adhesive has strong adhesive property, so that an RCPP film 3 is better adhered to an upper EVA film 1; the acrylate adhesive layer 2 is also helpful for improving the high and low temperature resistance of the EVA intermediate film.
Referring to fig. 1, the RCPP film 3 is formed by melting and tape casting processes of plastic polypropylene, and is purchased from jaglii ltd, tidal and ampere district, Chaozhou city, the RCPP film 3 has the advantages of light weight, high transparency, excellent moisture resistance, and the greatest characteristic of high temperature resistance, and can be cooked at 120 ℃, and in the process of showering, the RCPP film 3 can effectively prevent a large amount of water vapor from permeating, and greatly prolong the service life and the high moisture resistance of the EVA intermediate film.
Referring to fig. 1, the polyurethane adhesive layer 4 is formed by coating a polyurethane adhesive, the polyurethane adhesive is purchased from rubber products limited in Hebeiqiao, and has high cohesiveness, so that the RCPP film 3 and the TPU high humidity resistant film 5 are better adhered; the polyurethane adhesive has better water resistance and medium resistance, and can improve the high humidity resistance of the EVA intermediate film; the polyurethane adhesive is easy to form a film at low environmental temperature, and is convenient to process; the polyurethane adhesive also has excellent impact resistance, so that the EVA intermediate film has certain toughness.
Referring to fig. 1, the TPU high humidity resistant film 5 is prepared by calendering, tape casting, film blowing and other special processes on the basis of TPU granules, the TPU granules are melted and plasticized by an extruder, extruded from a machine head through a slit die orifice, calendered by a three-roll calender, cooled by a cooling conveying roller, vertically and upwardly led out from a ring machine head, blown, led into a traction roller by a herringbone plate, and then passed through a guide roller and a coiling device to obtain a finished product. The TPU is prepared by reacting hydroxyethyl methacrylate/propyl methacrylate with an NCO-terminated polyurethane prepolymer to prepare polyurethane with an acrylic double bond as a terminal group, and then adding organic peroxide as an intermediate layer material, and has high adhesion performance and high humidity resistance.
Referring to fig. 1, the LOVA glue layer 6 is formed by coating the LOVA glue, the LOVA glue is purchased from Xinda adhesive limited company of Dongguan city, the LOVA glue has higher viscosity and high temperature resistance, the adhesive property of the TPU high humidity resistant film 5 and the PVDF film 7 is increased by the LOVA glue layer 6, and the high humidity resistance of the EVA middle film is further improved.
Referring to fig. 1, the PVDF film 7, i.e., a polyvinylidene fluoride film, is manufactured by a non-solvent induced phase separation method, and is available from seimer feishell science and technology (china), and the PVDF film 7 has good heat resistance and stability, water resistance, and most of chemical solvents, has high gas and liquid permeation resistance, and also has impact resistance, and improves the toughness of the EVA intermediate film.
Referring to fig. 1, the silicone glass adhesive layer 8 is formed by curing a single-component silicone adhesive in contact with moisture in the air, and the silicone adhesive is purchased from the near-Yirun glue industry limited company, has strong adhesive force and moisture resistance, and can adapt to high and low temperature and ultraviolet resistance at the same time, so that the PVDF film is better adhered to the lower EVA film 9, and can resist ultraviolet rays from the outside, and the high humidity resistance of the EVA intermediate film is further improved.
The implementation principle of the high-humidity-resistant EVA intermediate film for the shower room safety glass in the embodiment of the application is as follows: the upper EVA film 1 is adhered with glass close to the outside of a bathroom, the surface of the upper EVA film 1 far away from the glass is adhered with an RCPP film 3 through an acrylate adhesive layer 2, the acrylate adhesive layer 2 has strong adhesion, the RCPP film 3 is adhered on the upper EVA film 1 more firmly, the acrylate adhesive layer 2 can also avoid comprehensive damage of illumination, temperature and bacteria to the EVA intermediate film, the weather resistance of the EVA intermediate film is improved, the RCPP film 3 effectively prevents a large amount of water vapor from permeating and overflowing out of the bathroom, the surface of the RCPP film 3 far away from the upper EVA film is adhered with a TPU high-humidity resistant film 5 through a polyurethane adhesive layer 4, the polyurethane adhesive layer 4 has the characteristics of good transparency, strong adhesion, high and low temperature resistance, the RCPP film 3 and the TPU high-humidity resistant film 5 are better adhered through the polyurethane adhesive layer 4, the high temperature resistance of the EVA intermediate film is improved, the TPU high humidity resistant film 5 has high adhesion and high humidity resistance, the high temperature resistance of the EVA middle film is further improved, the surface, away from the RCPP film 3, of the TPU high humidity resistant film 5 is bonded with a PVDF film 7 through a LOVA glue layer 6, the LOVA glue layer 6 has high cohesiveness and high temperature resistance, the LOVA glue layer 6 increases the cohesiveness of the TPU high humidity resistant film 5 and the PVDF film 7, the high humidity resistance of the EVA middle film is further improved, the PVDF film 7 is good in heat resistance and stability, water resistance and most of chemical solvents have high permeability resistance to gas and liquid, water vapor in a bathroom is prevented from permeating into an interlayer of glass to cause the EVA film composite to fall off, the PVDF film 7 is bonded with a lower EVA film 9 through a silicone glass glue layer 8, the lower EVA film 9 is bonded with the glass close to the bathroom, the silicone glass glue layer 8 enables the PVDF film 7 to be bonded on the lower EVA film 9 better, and the moisture-proof performance is also provided, and the moisture-proof performance is beneficial for preventing the water vapor in the bathroom from permeating into the EVA middle film.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (7)
1. The high-humidity-resistant EVA intermediate film for the safety glass of the shower room is characterized in that: including last EVA membrane (1) and lower EVA membrane (9), it is equipped with TPU between EVA membrane (1) and lower EVA membrane (9) and is able to bear or endure high wet membrane (5).
2. The EVA interlayer film for high humidity resistance of shower room safety glass according to claim 1, which is characterized in that: and a PVDF film (7) is arranged between the TPU high-humidity resistant film (5) and the lower EVA film (9).
3. The EVA interlayer film for high humidity resistance of shower room safety glass according to claim 2, which is characterized in that: and a silicone glass glue layer (8) is adhered to the surface of the lower EVA film (9) close to the PVDF film (7).
4. The EVA interlayer film for high humidity resistance of shower room safety glass according to claim 3, characterized in that: the surface of the silicone glass adhesive layer (8) far away from the lower EVA film (9) is provided with a film groove (81), and the PVDF film (7) is arranged in the film groove (81).
5. The EVA interlayer film for high humidity resistance of shower room safety glass according to claim 1, which is characterized in that: an RCPP film (3) is arranged between the TPU high-humidity resistant film (5) and the upper EVA film (1).
6. The EVA interlayer film for high humidity resistance of shower room safety glass according to claim 5, wherein: the upper EVA film (1) is bonded with the RCPP film (3) through an acrylate adhesive layer (2).
7. The EVA interlayer film for high humidity resistance of shower room safety glass according to claim 6, wherein: the RCPP film (3) and the TPU high-humidity resistant film (5) are bonded through a polyurethane adhesive layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120867155.0U CN215096165U (en) | 2021-04-25 | 2021-04-25 | High-humidity-resistant EVA (ethylene-vinyl acetate) intermediate film for shower room safety glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120867155.0U CN215096165U (en) | 2021-04-25 | 2021-04-25 | High-humidity-resistant EVA (ethylene-vinyl acetate) intermediate film for shower room safety glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215096165U true CN215096165U (en) | 2021-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120867155.0U Expired - Fee Related CN215096165U (en) | 2021-04-25 | 2021-04-25 | High-humidity-resistant EVA (ethylene-vinyl acetate) intermediate film for shower room safety glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215096165U (en) |
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2021
- 2021-04-25 CN CN202120867155.0U patent/CN215096165U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
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