CN216100861U - Sound insulation type colorful EVA (ethylene-vinyl acetate) intermediate film for building glass - Google Patents
Sound insulation type colorful EVA (ethylene-vinyl acetate) intermediate film for building glass Download PDFInfo
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- CN216100861U CN216100861U CN202120876486.0U CN202120876486U CN216100861U CN 216100861 U CN216100861 U CN 216100861U CN 202120876486 U CN202120876486 U CN 202120876486U CN 216100861 U CN216100861 U CN 216100861U
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Abstract
The application relates to a sound insulation type color EVA (ethylene vinyl acetate) intermediate film for building glass, relates to the field of EVA intermediate film technology, and comprises an EVA color film layer and a sound insulation clampA layer, the EVA color film layer wraps the surface of the sound insulation interlayer, and the sound insulation interlayer is PVB/T-ZnOw transparent film or PVB/SiO2A transparent film. PVB/T-ZnOw transparent film or PVB/SiO adopted by the application2Transparent film all has higher damping coefficient, helps noise abatement to pass through the intermediate layer that gives sound insulation, has improved the promotion effect of intermediate film to building glass sound insulation performance.
Description
Technical Field
The application relates to the field of EVA (ethylene vinyl acetate) intermediate film technology, in particular to a sound insulation type color EVA intermediate film for building glass.
Background
Modern buildings widely use colored laminated glass to improve the aesthetic property, the colored laminated glass is formed by compounding a plurality of pieces of glass and a colored intermediate film clamped between the pieces of glass at high temperature and high pressure, and the colored intermediate film is generally prepared by materials such as EVA (ethylene vinyl acetate) or PVB (polyvinyl butyral) and color master batches through a melting extrusion method.
In the related art, patent with publication number CN210553476U discloses a colorful PVB intermediate film, which comprises an upper base film, wherein a pattern layer is arranged at the bottom of the upper base film, a reinforcing layer is bonded at the bottom of the pattern layer through a sealant, a protective layer is bonded at the bottom of the reinforcing layer, and a lower base film is bonded at the bottom of the protective layer.
Aiming at the related technologies, the inventor thinks that along with the importance of people on the life quality, people hope that the building glass has better sound insulation effect, and the effect of improving the sound insulation performance of the colorful PVB intermediate film on the building glass is not good enough.
SUMMERY OF THE UTILITY MODEL
In order to improve the promotion effect of intermediate film to building glass sound insulation performance, this application provides a kind of sound insulation type colored EVA intermediate film for building glass.
The application provides a colored EVA intermediate film of type that gives sound insulation for building glass adopts following technical scheme:
the utility model provides a colored EVA intermediate coat of type that gives sound insulation for building glass, includes the colored rete of EVA and gives sound insulation intermediate layer, the colored rete parcel of EVA is on the surface of the intermediate layer that gives sound insulation, the intermediate layer that gives sound insulation is PVB/T-ZnOw combined material diaphragm or PVB SiO2A membrane.
By adopting the technical scheme, the EVA colorful film layer is used for bonding glass and enables the building glass to have colorful effect; compared with PVB materials, the PVB/T-ZnOw composite material membrane or the PVB/SiO2 membrane has higher damping coefficient, and is beneficial to blocking noise from passing through a sound insulation interlayer, so that the sound insulation performance of the building glass is improved; therefore, this application has improved the promotion effect of intermediate film to building glass sound insulation performance.
Optionally, the PVB/T-ZnOw composite material membrane is a membrane prepared from a PVB material and lipophilic T-ZnOw, and the lipophilic T-ZnOw is T-ZnOw particles with oleophilic degree of 14-16%.
By adopting the technical scheme, the T-ZnOw particles in the oleophilic degree range are more easily dispersed in a molten PVB material, the agglomeration phenomenon of oleophilic T-ZnOw in a PVB/T-ZnOw composite material membrane is reduced, and the visible light transmittance of the PVB/T-ZnOw composite material membrane is improved.
Optionally, the mass fraction of oleophilic T-ZnOw in the PVB/T-ZnOw composite material membrane is 0.32-0.48%.
By adopting the technical scheme, the PVB/T-ZnOw composite material membrane in the mass fraction range of the oleophilic T-ZnOw not only has a better sound insulation function, but also has a better shielding effect on ultraviolet light and infrared light, and is beneficial to reducing the aging phenomenon of the PVB/T-ZnOw composite material membrane.
Optionally, the thickness of the PVB/T-ZnOw composite material membrane is 0.12-0.65 mm.
By adopting the technical scheme, the PVB/T-ZnOw in the thickness range not only has better sound insulation function, but also has higher visible light transmittance, and is beneficial to reducing the influence of a PVB/T-ZnOw composite material membrane on the permeability of the building glass.
Optionally, the PVB/SiO2The membrane is made of PVB material and hydrophobic SiO2Prepared film of the hydrophobic SiO2Is SiO with a contact angle of 69.5-73.3 degrees2Particles of the hydrophobic SiO2The particle size of (D) is 100-140 nm.
By adopting the technical scheme, the hydrophobic SiO in the contact angle range2Has higher hydrophobicity, better affinity with PVB material and reduced hydrophobic SiO2In PVB/SiO2Agglomeration in the film is helpful for improving the visible light transmittance of the PVB/SiO2 film, and the hydrophobic SiO in the particle size range2Is helpful for reducing PVB/SiO2Near infrared transmittance of the film, so that PVB/SiO2The membrane has stronger heat resistance.
Optionally, the PVB/SiO2Hydrophobic SiO in membrane2The mass fraction of (A) is 8.6-11.5%.
By miningBy the technical scheme, the hydrophobic SiO2PVB/SiO in the range of mass fractions of2The membrane has better sound insulation effect and higher adhesive force, and is beneficial to PVB/SiO2The film is compounded with the EVA color film.
Optionally, the PVB/SiO2The thickness of the membrane is 0.2-1.15 mm.
By adopting the technical scheme, the PVB/SiO within the thickness range2The films have good visible light transmittance, and are beneficial to improving the permeability of the building glass.
Optionally, the EVA color film layer comprises an EVA base layer and a color transparent layer, the color transparent layer is wrapped on the surface of the sound insulation interlayer, the EVA base layer is wrapped on the surface of the color transparent layer, the EVA base layer is an EVA/GB transparent film prepared from EVA and hollow glass beads, and the density of the hollow glass beads is 0.15-0.21g/cm3。
By adopting the technical scheme, compared with an EVA material, the EVA/GB transparent film has lower heat conductivity, is beneficial to improving the heat insulation effect of the EVA color film, and is beneficial to reducing the aging of the color transparent layer and the sound insulation interlayer; the hollow glass beads in the density range are beneficial to reducing the thermal conductivity of the EVA/GB transparent film and improving the tensile strength of the EVA/GB transparent film.
Optionally, the mass fraction of the hollow glass beads in the EVA/GB transparent film is 4.8% -16.7%.
By adopting the technical scheme, the EVA/GB transparent film within the mass fraction range of the hollow glass beads has good heat insulation effect and good adhesive strength, and is favorable for bonding the EVA/GB transparent film with glass.
Optionally, the thickness of the EVA/GB transparent film is 0.28-0.72 mm.
By adopting the technical scheme, the EVA/GB transparent film in the thickness range has higher visible light transmittance, and is beneficial to reducing the influence of the EVA/GB transparent film on the permeability of the building glass.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the PVB/T-ZnOw composite material membrane or the PVB/SiO2 membrane is used as a sound insulation interlayer, noise can be reduced through the sound insulation interlayer, and the effect of the interlayer on improving the sound insulation performance of building glass is improved;
2. the oleophilic degree of the oleophilic T-ZnOw in the PVB/T-ZnOw composite material membrane is 14-16%, which is beneficial to improving the visible light transmittance of the PVB/T-ZnOw composite material membrane;
3. PVB/SiO of the present application2Hydrophobic SiO in membranes2The contact angle is 69.5-73.3 degrees, which is beneficial to improving the visible light transmittance of the PVB/SiO2 film and improving the PVB/SiO2Heat resistance of the membrane.
4. The EVA color film layer comprises an EVA base layer and a color transparent layer, wherein the EVA base layer is an EVA/GB transparent film, and the heat insulation effect of the EVA color film layer is improved.
Drawings
Fig. 1 is a schematic structural view of a sound insulation type color EVA intermediate film for architectural glass according to embodiment 1 of the present application.
Fig. 2 is a cross-sectional view of a sound insulation type color EVA intermediate film for architectural glass embodying embodiment 1 of the present application.
Fig. 3 is a cross-sectional view of a noise insulation type color EVA intermediate film for architectural glass embodying embodiment 2 of the present application.
Description of reference numerals: 1. an EVA color film layer; 11. an EVA base layer; 12. a color transparent layer; 2. a sound insulation interlayer; 21. PVB/T-ZnOw composite material membrane; 22. PVB/SiO2A membrane.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a sound insulation type colored EVA (ethylene-vinyl acetate copolymer) intermediate film for building glass.
Example 1
Referring to fig. 1, the sound insulation type color EVA middle film for the building glass comprises two EVA color film layers 1 and one sound insulation interlayer 2, wherein the sound insulation interlayer 2 is a PVB/T-ZnOw composite material film 21, the sound insulation interlayer 2 is arranged between the two EVA color film layers 1, and the EVA color film layers 1 are bonded with the PVB/T-ZnOw composite material film 21.
The method comprises the steps of firstly preparing a PVB/T-ZnOw composite material membrane 21, then extruding raw materials of a molten EVA color membrane layer 1 on the surface of the PVB/T-ZnOw composite material membrane 21 by using an extruder, simultaneously extruding the raw materials of the EVA color membrane layer 1 and the PVB/T-ZnOw composite material membrane 21 into a film by using the extruder, cooling the raw materials of the EVA color membrane layer 1 to form the EVA color membrane layer 1, and forming the sound insulation type color EVA intermediate film for the building glass by the EVA color membrane layer 1 and the PVB/T-ZnOw composite material membrane 21.
Referring to fig. 2, the PVB/T-ZnOw composite membrane 21 is a membrane prepared from a PVB material and an oleophilic T-ZnOw, the oleophilic T-ZnOw is T-ZnOw particles modified by a silane coupling agent, the oleophilic degree of the oleophilic T-ZnOw may be 14%, 15%, 16%, or the like, the oleophilic degree of the oleophilic T-ZnOw is 15% in the present embodiment, the thickness of the PVB/T-ZnOw composite membrane 21 may be 0.12mm, 0.265mm, or 0.65mm, or the like, and the thickness of the PVB/T-ZnOw composite membrane 21 is 0.265mm in the present embodiment.
Adding T-ZnOw particles into an ethanol solution of a silane coupling agent K-H570, performing magnetic stirring for 24 hours, performing ultrasonic dispersion for 15 minutes at 1200W, adding the dispersed suspension into a three-neck flask for dispersion reflux, performing reflux for 2 hours under the condition of an oil bath at 70 ℃, performing centrifugal separation, cleaning precipitates by using absolute ethanol and deionized water, and drying the cleaned precipitates to obtain lipophilic T-ZnOw; and then weighing lipophilic T-ZnOw with a set weight, adding the lipophilic T-ZnOw into a molten PVB material, uniformly mixing, and extruding by using an extruder to form a film to obtain a PVB/T-ZnOw composite material membrane 21 with the thickness of 0.265 mm.
Referring to fig. 2, the EVA color film layer 1 includes two EVA base layers 11 and two color transparent layers 12, the EVA base layer 11 is an EVA/GB transparent film, the EVA/GB transparent film is adhered to a sidewall of the color transparent layer 12, a PVB/T-ZnOw composite film 21 is positioned between the two color transparent layers 12, both the two color transparent layers 12 are adhered to the color transparent layer 12, the PVB/T-ZnOw composite film 21 and the color transparent layer 12 are positioned between the two EVA/GB transparent films, one EVA/GB transparent film is adhered to the color transparent layer 12 on one side of the PVB/T-ZnOw composite film 21, and the other EVA/GB transparent film is adhered to the color transparent layer 12 on the other side of the PVB/T-ZnOw composite film 21.
Referring to fig. 2, the color transparent layer 12 is prepared from EVA and color master batch, and the thickness of the color transparent layer 12 is 0.2 mm.
Referring to fig. 2, the EVA/GB transparent film is made of EVA and hollow glass beads by a melt extrusion method, the particle size of the hollow glass beads is 40 μm, and the density of the hollow glass beads may be 0.15g/cm3、0.18g/cm3Or 0.21g/cm3Etc., the density of the hollow glass beads of the present example was 0.18g/cm3(ii) a The mass fraction of the hollow glass beads in the EVA/GB transparent film may be 4.8%, 10.75%, 16.7%, etc., and the mass fraction of the hollow glass beads in the EVA/GB transparent film of this embodiment is 10.75%; the thickness of the EVA/GB transparent film can be 0.28mm, 0.5mm, 0.72mm and the like, and the thickness of the EVA/GB transparent film of the embodiment is 0.5 mm.
Weighing hollow glass beads with a set weight, adding the hollow glass beads into molten EVA, uniformly mixing to obtain an EVA/GB mixed material, extruding the EVA/GB mixed material on the surface of a color transparent layer 12, then simultaneously extruding the EVA/GB mixed material, the color transparent layer 12 and a PVB/T-ZnOw composite material membrane 21 to form a film by using an extruder, cooling the EVA/GB mixed material to form an EVA/GB transparent film with the thickness of 0.5mm, and jointly forming the EVA/GB transparent film, the color transparent layer 12 and the PVB/T-ZnOw composite material membrane 21 into the sound-insulating color EVA intermediate film for the building glass.
The implementation principle of the embodiment 1 is as follows: firstly, preparing lipophilic T-ZnOw, then weighing granular PVB material with specified weight, adding the granular PVB material into the molten PVB material, heating the granular PVB material to a molten state, adding the lipophilic T-ZnOw with the specified weight into the molten PVB material, uniformly mixing to obtain PVB/T-ZnOw material, then extruding the PVB/T-ZnOw material into a film by using an extruder, and cooling to obtain a PVB/T-ZnOw composite material film 21 with the thickness of 0.265 mm.
Then adding granular EVA and color master batch into an extruder at the same time according to a set weight ratio, heating the EVA and the color master batch to a molten state, uniformly mixing to obtain a colorful EVA material, extruding the colorful EVA material onto the surface of a PVB/T-ZnOw composite material membrane 21, then extruding the colorful EVA material and the PVB/T-ZnOw composite material membrane 21 by using the extruder at the same time, cooling the colorful EVA material to obtain a colorful transparent layer 12, and bonding the colorful transparent layer 12 with the PVB/T-ZnOw composite material membrane 21.
Adding EVA particles with specified weight into an extruder, heating and melting the EVA particles, adding hollow glass beads with specified weight into the molten EVA, uniformly mixing to obtain an EVA/GB mixed material, extruding the EVA/GB mixed material on the surface of the colored transparent layer 12, simultaneously extruding the EVA/GB mixed material, the colored transparent layer 12 and the PVB/T-ZnOw composite material membrane 21 to form a membrane, and cooling to obtain the sound insulation type colored EVA intermediate membrane for the building glass.
Example 2
Referring to FIG. 3, this example is different from example 1 in that the sound-deadening interlayer 2 is PVB/SiO2Diaphragm 22, PVB/SiO2The membrane 22 is made of PVB material and hydrophobic SiO2Prepared by preparing hydrophobic SiO2Is SiO obtained by modifying a silane coupling agent2Granular, hydrophobic SiO2The contact angle of (A) may be 69.5 °, 71.4 °, 73.3 °, or the like, and the hydrophobic SiO of this example2A contact angle of 71.4 °; hydrophobic SiO2The particle size of (A) may be 100nm, 120nm or 140nm, etc., and the hydrophobic SiO of the present embodiment2Has a particle size of 120 nm; hydrophobic SiO in PVB/SiO2 membrane 222The mass fraction of (A) may be 8.6%, 10.05%, 11.5%, etc., the PVB/SiO of the present example2Hydrophobic SiO in the membrane 222The mass fraction of (A) is 10.05%; PVB/SiO2The thickness of the membrane 22 may be 0.2mm, 0.675mm or 1.15mm, etc., and the PVB/SiO of the present embodiment2The membrane 22 has a thickness of 0.675 mm.
The implementation principle of the embodiment 2 is as follows: firstly, SiO is added2Adding the particles into an ethanol solution of a silane coupling agent K-H570, magnetically stirring for 24 hours, adding the stirred suspension into a three-neck flask, refluxing for 2 hours under the condition of an oil bath at 70 ℃, then performing centrifugal separation, cleaning the precipitate by using absolute ethyl alcohol and deionized water, and drying the cleaned precipitate to obtain hydrophobic SiO2。
Heating PVB particles with specified mass to molten state, and adding hydrophobic SiO with specified mass2Adding the mixture into molten PVB, and uniformly mixing to obtain PVB/SiO2Material, PVB/SiO2The material is extruded into a film to obtain PVB/SiO2Diaphragm 22, then PVB/SiO2The colorful transparent layer 12 and the EVA/GB transparent film are sequentially compounded on the membrane 22, and the sound insulation type colorful EVA intermediate film for the building glass is obtained.
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 (5)
1. The utility model provides a colored EVA intermediate film of type that gives sound insulation for building glass which characterized in that: including EVA colored rete (1) and sound insulation intermediate layer (2), EVA colored rete (1) parcel is on the surface of sound insulation intermediate layer (2), sound insulation intermediate layer (2) are PVB/T-ZnOw combined material diaphragm (21) or PVB SiO2A membrane (22).
2. The sound insulation type colored EVA intermediate film for architectural glass according to claim 1, wherein: the thickness of the PVB/T-ZnOw composite material membrane (21) is 0.12-0.65 mm.
3. The sound insulation type colored EVA intermediate film for architectural glass according to claim 1, wherein: PVB/SiO2The thickness of the membrane (22) is 0.2-1.15 mm.
4. The sound insulation type colored EVA intermediate film for architectural glass according to claim 1, wherein: EVA colorful rete (1) includes EVA/GB combined material layer (11) and colored stratum lucidum (12), colored stratum lucidum (12) parcel is on the surface of sound insulation intermediate layer (2), EVA/GB combined material layer (11) parcel is on the surface of colored stratum lucidum (12), EVA/GB combined material layer (11) is EVA/GB transparent film.
5. The sound insulation type colored EVA intermediate film for architectural glass according to claim 4, wherein: the thickness of the EVA/GB transparent film is 0.28-0.72 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120876486.0U CN216100861U (en) | 2021-04-25 | 2021-04-25 | Sound insulation type colorful EVA (ethylene-vinyl acetate) intermediate film for building glass |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120876486.0U CN216100861U (en) | 2021-04-25 | 2021-04-25 | Sound insulation type colorful EVA (ethylene-vinyl acetate) intermediate film for building glass |
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| CN216100861U true CN216100861U (en) | 2022-03-22 |
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| CN202120876486.0U Active CN216100861U (en) | 2021-04-25 | 2021-04-25 | Sound insulation type colorful EVA (ethylene-vinyl acetate) intermediate film for building glass |
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