CN216129541U - High-transparency anti-glue-overflow EVA (ethylene-vinyl acetate) intermediate film for building glass - Google Patents
High-transparency anti-glue-overflow EVA (ethylene-vinyl acetate) intermediate film for building glass Download PDFInfo
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- CN216129541U CN216129541U CN202122870393.XU CN202122870393U CN216129541U CN 216129541 U CN216129541 U CN 216129541U CN 202122870393 U CN202122870393 U CN 202122870393U CN 216129541 U CN216129541 U CN 216129541U
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- eva
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- glued membrane
- membrane layer
- overflow
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- 239000011521 glass Substances 0.000 title claims abstract description 23
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 title claims description 149
- 239000005038 ethylene vinyl acetate Substances 0.000 title claims description 149
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 title claims description 149
- 239000012528 membrane Substances 0.000 claims abstract description 50
- 238000007789 sealing Methods 0.000 claims abstract description 45
- 239000003292 glue Substances 0.000 claims abstract description 41
- 230000003287 optical effect Effects 0.000 claims description 37
- 239000002313 adhesive film Substances 0.000 claims description 33
- 239000004568 cement Substances 0.000 claims description 33
- 238000009413 insulation Methods 0.000 claims description 22
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 210000002421 cell wall Anatomy 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 17
- 239000010410 layer Substances 0.000 description 120
- 238000007731 hot pressing Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 15
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
- 238000004026 adhesive bonding Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000005340 laminated glass Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000005328 architectural glass Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Abstract
The utility model relates to a EVA glued membrane field, concretely relates to building glass is with high transparent anti-overflow glues EVA intermediate coat, it includes first EVA glued membrane layer, second EVA glued membrane layer, insulating layer and sealing member, first EVA glued membrane layer and second EVA glued membrane layer are parallel to each other, the insulating layer setting is between first EVA glued membrane layer and second EVA glued membrane layer, the sealing member is including sealed piece, sealed piece sets up on first EVA glued membrane layer, be provided with the slot on the second EVA glued membrane layer, sealed piece is inserted and is established in the slot. The method has the advantage of reducing the glue overflowing situation of the EVA middle film.
Description
Technical Field
The application relates to the field of EVA (ethylene vinyl acetate) adhesive films, in particular to a high-transparency anti-overflow EVA intermediate film for building glass.
Background
The EVA film, also known as an EVA intermediate film, is a thermosetting and adhesive film. Because the EVA intermediate film is semitransparent before being heated, the EVA intermediate film shows excellent transparent effect and bonding strength after being heated and cured. Therefore, the EVA film is widely used in the laminating process of various glasses, such as patterned glass, tempered glass, bent glass, etc., architectural laminated glass, decorative laminated glass, anti-theft glass, plastic laminated plate, etc.
However, in the process of hot pressing the EVA adhesive film, the adhesive glue between the EVA adhesive films easily overflows, and the overflowing adhesive glue easily forms a stain on the surface of the EVA adhesive film, thereby affecting the transparency of the EVA adhesive film.
SUMMERY OF THE UTILITY MODEL
In order to reduce the condition that the excessive glue appears in the EVA intermediate film, this application provides a building glass glues EVA intermediate film with high transparent anti-overflow.
The application provides a pair of building glass is with high transparent anti-overflow glue EVA intermediate film adopts following technical scheme:
the utility model provides a building glass is with high transparent anti-overflow glues EVA intermediate coat, includes first EVA glued membrane layer, second EVA glued membrane layer, insulating layer and sealing member, first EVA glued membrane layer and second EVA glued membrane layer are parallel to each other, the insulating layer sets up between first EVA glued membrane layer and second EVA glued membrane layer, the sealing member is including sealed piece, sealed piece sets up on first EVA glued membrane layer, be provided with the slot on the second EVA glued membrane layer, sealed piece is inserted and is established in the slot.
Through adopting above-mentioned technical scheme, sealed piece is inserted and is established in the slot for be in relative encapsulated situation between first EVA glued membrane layer and the second EVA glued membrane layer, be favorable to reducing the condition that overflows appears in gluing between hot pressing in-process first EVA glued membrane layer and the second EVA glued membrane layer. And meanwhile, a heat insulation layer is arranged between the first EVA adhesive film layer and the second EVA adhesive film layer, so that the overall heat insulation effect of the EVA intermediate film is improved.
Optionally, an optical cement bonding layer is arranged between the first EVA glue film layer and the thermal insulation layer and between the second EVA glue film layer and the thermal insulation layer, and the optical cement bonding layer is abutted to the side wall of the sealing block.
Through adopting above-mentioned technical scheme, the optical cement tie coat is the layer that the optical cement coating formed after solidifying, and its lateral wall butt with the sealed piece is favorable to improving the holistic bonding strength of EVA intermediate coat, under the less condition of influence to EVA intermediate coat luminousness, still helps improving the stability of EVA intermediate coat structure.
Optionally, the sealing block is an EVA glue film block.
By adopting the technical scheme, the sealing block is the EVA adhesive film block, so that the sealing block is bonded with the groove wall of the slot in the hot pressing process, the sealing effect of the EVA intermediate film and the stability of the structure are improved, and the condition of glue overflow of the EVA intermediate film is reduced.
Optionally, the sealing block is provided with an accommodating groove, and a notch of the accommodating groove penetrates through a side wall of the sealing block facing the optical cement bonding layer.
Through adopting above-mentioned technical scheme, at the hot pressing in-process, glue between each structure receives the extrusion back, glues to overflowing to the holding tank all around in, reduce because of the sealed obstructed condition of gluing that leads to of sealed piece, help reducing the hot pressing in-process and glue the pressure to each layer structure of EVA intermediate coat to help reducing each layer structure of EVA intermediate coat and appearing damaging the condition. The holding tank provides more spaces that hold gluey simultaneously, helps reducing the condition that the excessive gluey appears in EVA intermediate coat.
Optionally, the heat insulation layer is provided with a plurality of through holes in a penetrating manner, and the hole wall of each through hole is provided with an optical cement bonding layer.
By adopting the technical scheme, in the hot pressing process, glue between the first EVA adhesive film layer and the heat insulation layer can enter between the second EVA adhesive film layer and the heat insulation layer through the through hole; meanwhile, glue between the second EVA adhesive film layer and the heat insulation layer can enter the space between the first EVA adhesive film layer and the heat insulation layer through the through hole, and the flowing effect of the glue is good. The glue between the first EVA adhesive film layer and the heat insulation layer and the glue between the second EVA adhesive film layer and the heat insulation layer complement each other, which is beneficial to improving the uniformity of the glue among all the structures of the EVA intermediate film, so that the bonding effect of the EVA intermediate film is better, and the stability of the EVA intermediate film is improved; and the condition of glue overflow of the EVA intermediate film can be reduced.
Optionally, the heat insulation layer is provided with a jack in a penetrating manner, the first EVA film layer and the second EVA film layer are both provided with an insertion block, and the insertion block is inserted into the jack.
Through adopting above-mentioned technical scheme, the inserted block is inserted and is established in the jack for the connected effect between first EVA glued membrane layer, second EVA glued membrane layer and the insulating layer is better, reduces the condition that each layer structure takes place the dislocation among the hot pressing process, thereby helps improving the stability between each layer structure of EVA intermediate coat.
Optionally, a through groove is formed in the insert, a notch of the through groove penetrates through the end wall of the insert, which faces the thermal insulation layer, a plurality of drainage holes are formed in the insert and communicated with the through groove, one end of the insert extends out of the insertion hole, and optical cement bonding layers are arranged on the hole wall of each drainage hole and the groove wall of the through groove.
Through adopting above-mentioned technical scheme, in the hot pressing process, glue between first EVA glued membrane layer and the insulating layer can loop through the drainage hole and lead to between groove entering second EVA glued membrane layer and the insulating layer, otherwise also can. Further, glue among all the layers of structures can circulate mutually, mutual complement of the glue among all the layers of structures is facilitated, the bonding effect among all the layers of structures of the EVA intermediate film is improved, and the condition that glue overflows in the EVA intermediate film can be reduced.
Optionally, sealing strips are arranged on the circumferential walls of the first EVA film layer, the sealing block and the second EVA film layer.
Through adopting above-mentioned technical scheme, the sealing strip is further sealed the gap between sealed piece and the slot, helps reducing the hot pressing in-process and glues the condition that overflows through the gap between sealed piece and the slot to reduce the condition that the excessive glue of EVA intermediate coat appearance.
In summary, the present application includes at least one of the following beneficial technical effects:
according to the EVA film, the sealing element is arranged between the first EVA film layer and the second EVA film layer, so that the condition that glue overflows from the EVA intermediate film is reduced; specifically, the sealing effect is realized by inserting the sealing block into the slot, so that the effect of reducing the glue overflow condition of the EVA intermediate film is achieved;
according to the EVA middle film, the plurality of through holes are arranged on the second EVA adhesive film layer in a penetrating manner, so that the glue among all the layers of structures can circulate mutually, the uniformity of the glue among all the layers of structures is improved, the bonding effect of all the layers of structures is better, the stability of the EVA middle film is improved, and the condition that the glue overflows from the EVA middle film can be reduced;
this application sets up the sealing strip through the junction at sealed piece and slot cell wall, helps reducing the hot pressing in-process and glues the condition that overflows from the gap, further improves the sealed effect of EVA intermediate coat, reduces the EVA intermediate coat and appears overflowing gluey condition.
Drawings
FIG. 1 is a schematic structural diagram of a high-transparency glue-overflow-preventing EVA intermediate film for building glass in an embodiment of the present application.
FIG. 2 is a cross-sectional view of a highly transparent anti-overflow EVA middle film structure for architectural glass in an embodiment of the present application.
Fig. 3 is an enlarged view at a in fig. 2.
Description of reference numerals: 1. a first EVA film layer; 2. a second EVA film layer; 21. a slot; 3. a thermal insulation layer; 31. a through hole; 32. a jack; 4. a seal member; 41. a sealing block; 42. accommodating grooves; 5. an optical adhesive bonding layer; 6. inserting a block; 61. a through groove; 62. a drainage hole; 7. a sealing strip.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses high-transparency anti-overflow EVA (ethylene-vinyl acetate) intermediate film for building glass.
Referring to fig. 1, fig. 2 and fig. 3, a building glass is with high transparent anti-overflow glue EVA intermediate film, includes first EVA glued membrane layer 1, second EVA glued membrane layer 2, insulating layer 3 and sealing member 4, and first EVA glued membrane layer 1, insulating layer 3 and second EVA glued membrane layer 2 are parallel to each other, establish first EVA glued membrane layer 1, insulating layer 3 and second EVA glued membrane layer 2 and arrange the setting from top to bottom in proper order along vertical direction. Insulating layer 3 sets up between first EVA glued membrane layer 1 and second EVA glued membrane layer 2, all is provided with optical cement tie coat 5 between first EVA glued membrane layer 1 and the insulating layer 3, between second EVA glued membrane layer 2 and the insulating layer 3, and optical cement tie coat 5 is the layer that forms after the coating solidification of optical cement. The sealing element 4 comprises a sealing block 41, the sealing block 41 is an EVA (ethylene vinyl acetate) adhesive film block, and the sealing block 41 is arranged on the circumferential side wall of the first EVA adhesive film layer 1; the second EVA glue film layer 2 is provided with a slot 21 along the circumference of the upper surface of itself, the sealing block 41 is inserted in the slot 21, and the optical cement bonding layer 5 abuts against the side wall of the sealing block 41. And the peripheral walls of the first EVA adhesive film layer 1, the sealing block 41 and the second EVA adhesive film layer 2 are all provided with sealing strips 7.
Before hot pressing, optical cement is coated on the first EVA adhesive film layer 1, the heat insulation layer 3 and the second EVA adhesive film, then the sealing block 41 is inserted into the slot 21, and gaps among the first EVA adhesive film layer 1, the heat insulation layer 3 and the second EVA adhesive film layer 2 are sealed. And then hot pressing is carried out, the sealing block 41 is bonded on the groove wall of the slot 21, and the optical cement between the structures is cured to form the optical cement bonding layer 5, so that the structures are bonded together. And finally, hot-pressing the sealing strip 7 to the peripheral walls of the first EVA adhesive film layer 1, the sealing block 41 and the second EVA adhesive film layer 2, and further sealing the gap to finally form the EVA intermediate film. In the hot pressing process, due to the sealing effect of the sealing block 41, the situation of glue overflow of the prepared EVA intermediate film can be effectively reduced.
Referring to fig. 2 and 3, the sealing block 41 is provided with a receiving groove 42, and a notch of the receiving groove 42 penetrates through a side wall of the sealing block 41 facing the optical adhesive layer 5. The notch of the receiving groove 42 is horizontally opposite to the vertical sidewall of the optical adhesive layer 5.
In the hot pressing process, the optical cement is extruded and overflows to the containing groove 42 from the periphery, so that the flowing space of the optical cement is larger, and the condition of glue overflow of the EVA intermediate film is reduced.
Referring to fig. 2 and 3, a plurality of through holes 31 penetrate through the heat insulation layer 3 along the vertical direction, and the hole walls of the through holes 31 are all provided with the optical cement bonding layers 5. Six insertion holes 32 penetrate through the heat insulation layer 3 along the vertical direction, every three insertion holes 32 form a group, and the three insertion holes 32 in each group are arranged at equal intervals along the same horizontal line. The lower surface of first EVA glued membrane layer 1 and the upper surface of second EVA glued membrane layer 2 all are provided with inserted block 6, and inserted block 6 the one-to-one of 1 lower surface of first EVA glued membrane layer is inserted and is established in one of them group of jack 32, and inserted block 6 the one-to-one of 2 upper surfaces of second EVA glued membrane layer is inserted and is established in another group of jack 32. Be provided with logical groove 61 on the inserted block 6, the notch that leads to groove 61 runs through the inserted block 6 along vertical direction towards the end wall of insulating layer 3, runs through along the horizontal direction on the inserted block 6 and is provided with a plurality of drainage holes 62, and a plurality of drainage holes 62 communicate with each other with leading to groove 61. One end of the insert 6 extends out of the jack 32, and the hole wall of the drainage hole 62 and the groove wall of the through groove 61 are both provided with the optical cement bonding layer 5.
Before the heat pressing operation, when the sealing block 41 is inserted into the insertion groove 21, the insertion block 6 is inserted through the insertion hole 32, and then heat pressing is performed. After the optical cement is extruded, the optical cement among the structures flows through the through hole 31, the drainage hole 62 and the through groove 61, and fills gaps among the structures to finally form the optical cement bonding layer 5. Because in the hot pressing process, the circulation effect of optical cement between each layer structure is better, and the optical cement tie coat 5 that forms through complementing each other is more even, and makes optical cement tie coat 5 all have the distribution in horizontal direction and vertical direction, helps improving the stability of EVA intermediate coat structure. Meanwhile, due to the good circulation effect of the optical cement in the hot pressing process, the situation of glue overflow of the EVA intermediate film is further reduced.
The implementation principle of the high-transparency anti-overflow EVA middle film for the building glass in the embodiment of the application is as follows: the sealing block 41 is inserted into the slot 21 to seal gaps among the first EVA adhesive film layer 1, the second EVA adhesive film layer 2 and the heat insulation layer 3, so that the situation of glue overflow of the EVA middle film is reduced. Meanwhile, the thermal insulation layer 3 is provided with the through holes 31 in a penetrating mode, so that optical cement between each layer of structure in the hot pressing process is complemented with each other, the uniformity of the optical cement bonding layer 5 is improved, the optical cement bonding layer 5 between each layer of structure is in a form that the horizontal direction and the vertical direction are staggered with each other, and the stability of the EVA middle membrane structure is improved. In addition, each structure of the EVA intermediate film and the optical adhesive bonding layer 5 have better light transmittance, so that the prepared EVA intermediate film is in a high-transparency state.
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 (8)
1. The utility model provides a building glass is with high transparent anti-overflow EVA intermediate film that glues which characterized in that: including first EVA glued membrane layer (1), second EVA glued membrane layer (2), insulating layer (3) and sealing member (4), first EVA glued membrane layer (1) and second EVA glued membrane layer (2) are parallel to each other, insulating layer (3) set up between first EVA glued membrane layer (1) and second EVA glued membrane layer (2), sealing member (4) are including sealed piece (41), sealed piece (41) set up on first EVA glued membrane layer (1), be provided with slot (21) on second EVA glued membrane layer (2), sealed piece (41) are inserted and are established in slot (21).
2. The high-transparency glue-overflow-preventing EVA intermediate film for building glass according to claim 1, wherein: all be provided with between first EVA glued membrane layer (1) and insulating layer (3), between second EVA glued membrane layer (2) and insulating layer (3) optical cement tie coat (5), optical cement tie coat (5) and the lateral wall butt of sealed piece (41).
3. The high-transparency glue-overflow-preventing EVA intermediate film for building glass according to claim 1, wherein: the sealing block (41) is an EVA (ethylene vinyl acetate) adhesive film block.
4. The high-transparency glue-overflow-preventing EVA intermediate film for building glass according to claim 1, wherein: be provided with holding tank (42) on sealed piece (41), the notch of holding tank (42) runs through sealed piece (41) and is towards the lateral wall of optical cement tie coat (5).
5. The high-transparency glue-overflow-preventing EVA intermediate film for building glass according to claim 2, wherein: the heat insulation layer (3) is provided with a plurality of through holes (31) in a penetrating mode, and the wall of each through hole (31) is provided with an optical cement bonding layer (5).
6. The high-transparency glue-overflow-preventing EVA intermediate film for building glass according to claim 2, wherein: the heat insulation layer (3) is provided with a jack (32) in a penetrating mode, the first EVA adhesive film layer (1) and the second EVA adhesive film layer (2) are provided with an inserting block (6), and the inserting block (6) is inserted into the jack (32).
7. The high-transparency glue-overflow-preventing EVA intermediate film for building glass according to claim 6, wherein: be provided with on inserted block (6) and lead to groove (61), the notch that leads to groove (61) runs through inserted block (6) towards the end wall of insulating layer (3), be provided with a plurality of drainage holes (62) on inserted block (6), it is a plurality of drainage hole (62) communicate with each other with leading to groove (61), jack (32) are stretched out to the one end of inserted block (6), all set up optical cement tie coat (5) on the pore wall of drainage hole (62) and the cell wall that leads to groove (61).
8. The high-transparency glue-overflow-preventing EVA intermediate film for building glass according to claim 1, wherein: and sealing strips (7) are arranged on the peripheral walls of the first EVA adhesive film layer (1), the sealing block (41) and the second EVA adhesive film layer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122870393.XU CN216129541U (en) | 2021-11-22 | 2021-11-22 | High-transparency anti-glue-overflow EVA (ethylene-vinyl acetate) intermediate film for building glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122870393.XU CN216129541U (en) | 2021-11-22 | 2021-11-22 | High-transparency anti-glue-overflow EVA (ethylene-vinyl acetate) intermediate film for building glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216129541U true CN216129541U (en) | 2022-03-25 |
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ID=80779270
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122870393.XU Expired - Fee Related CN216129541U (en) | 2021-11-22 | 2021-11-22 | High-transparency anti-glue-overflow EVA (ethylene-vinyl acetate) intermediate film for building glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216129541U (en) |
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2021
- 2021-11-22 CN CN202122870393.XU patent/CN216129541U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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Granted publication date: 20220325 |