CN110627382B - Heat-insulating automobile laminated glass and manufacturing method thereof - Google Patents
Heat-insulating automobile laminated glass and manufacturing method thereof Download PDFInfo
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- CN110627382B CN110627382B CN201910975854.4A CN201910975854A CN110627382B CN 110627382 B CN110627382 B CN 110627382B CN 201910975854 A CN201910975854 A CN 201910975854A CN 110627382 B CN110627382 B CN 110627382B
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- 239000005340 laminated glass Substances 0.000 title claims abstract description 62
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 88
- 239000011521 glass Substances 0.000 claims abstract description 42
- 239000010410 layer Substances 0.000 claims abstract description 39
- 229920005989 resin Polymers 0.000 claims abstract description 38
- 239000011347 resin Substances 0.000 claims abstract description 38
- 238000009413 insulation Methods 0.000 claims abstract description 19
- 239000011229 interlayer Substances 0.000 claims abstract description 16
- -1 polyethylene Polymers 0.000 claims description 22
- 239000006096 absorbing agent Substances 0.000 claims description 18
- 239000004014 plasticizer Substances 0.000 claims description 15
- 238000005086 pumping Methods 0.000 claims description 13
- 239000002105 nanoparticle Substances 0.000 claims description 11
- 239000011358 absorbing material Substances 0.000 claims description 10
- 238000010030 laminating Methods 0.000 claims description 9
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 9
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 7
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 7
- 238000002834 transmittance Methods 0.000 claims description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 6
- 229920000515 polycarbonate Polymers 0.000 claims description 6
- 239000004417 polycarbonate Substances 0.000 claims description 6
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 6
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 claims description 5
- 239000011112 polyethylene naphthalate Substances 0.000 claims description 5
- 239000002033 PVDF binder Substances 0.000 claims description 4
- 239000004697 Polyetherimide Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 239000004793 Polystyrene Substances 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 claims description 4
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 229920001601 polyetherimide Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 239000004626 polylactic acid Substances 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 229920002223 polystyrene Polymers 0.000 claims description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 4
- 229910001930 tungsten oxide Inorganic materials 0.000 claims description 4
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 claims description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-L Malonate Chemical compound [O-]C(=O)CC([O-])=O OFOBLEOULBTSOW-UHFFFAOYSA-L 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- VQNRMLCRMNVBBP-UHFFFAOYSA-N aniline;oxalic acid Chemical compound OC(=O)C(O)=O.NC1=CC=CC=C1 VQNRMLCRMNVBBP-UHFFFAOYSA-N 0.000 claims description 3
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 3
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 3
- 239000012965 benzophenone Substances 0.000 claims description 3
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 3
- 239000012964 benzotriazole Substances 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 150000002895 organic esters Chemical class 0.000 claims description 3
- 125000005461 organic phosphorous group Chemical group 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 229920000306 polymethylpentene Polymers 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 claims 2
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 9
- 238000004891 communication Methods 0.000 abstract description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 9
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 5
- 229910003437 indium oxide Inorganic materials 0.000 description 4
- 239000011787 zinc oxide Substances 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 description 3
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920000571 Nylon 11 Polymers 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J1/00—Windows; Windscreens; Accessories therefor
- B60J1/001—Double glazing for vehicles
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/06—Joining glass to glass by processes other than fusing
- C03C27/10—Joining glass to glass by processes other than fusing with the aid of adhesive specially adapted for that purpose
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Joining Of Glass To Other Materials (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to the field of glass products, in particular to glass installed on an automobile, and particularly provides heat-insulating automobile laminated glass and a manufacturing method thereof. The heat-insulating laminated glass for the automobile comprises an outer glass plate, a heat-insulating interlayer and an inner glass plate, wherein the heat-insulating interlayer comprises a first thermoplastic resin film, an infrared reflection film and a second thermoplastic resin film which are sequentially laminated, the infrared reflection film comprises at least two resin films laminated together, the difference between the refractive indexes of the two adjacent resin films is greater than or equal to 0.05, and the softening point temperature of the infrared reflection film is at least three times greater than the softening point temperature of the first thermoplastic resin film and the second thermoplastic resin film. The invention can avoid the heat insulation intermediate layers from softening and extruding mutually at the same time, eliminates the appearance defects of ripples or pits and the like, ensures the appearance quality of the laminated glass, does not block electromagnetic wave signals from passing through, and ensures the communication and other additional functions in the vehicle.
Description
The technical field is as follows:
the invention relates to the field of glass products, in particular to glass installed on an automobile, and particularly provides heat-insulating automobile laminated glass and a manufacturing method thereof.
Background art:
in order to make automobiles more energy-saving, environment-friendly and comfortable, automobile glass with a heat insulation function is more and more widely mounted on automobiles. One of the technical means for improving the heat insulating performance of laminated glass is to provide a heat insulating function to the intermediate film of the laminated glass. In the prior art, functional particles for blocking infrared rays can be added to the interlayer film so as to make the interlayer film have good heat-insulating properties, for example, japanese patent JP2001302289(a) discloses that indium oxide (ITO) doped with tin and/or tin oxide (ATO) doped with antimony are added to the interlayer film for laminated glass, japanese patent JP2003261361(a) discloses that indium oxide (ITO) doped with tin is added to the interlayer film for laminated glass, chinese patent CN1533367(a) discloses that indium oxide (ITO) doped with tin, tin oxide (ATO) doped with antimony, zinc oxide (AZO) doped with aluminum, zinc oxide (IZO) doped with indium, zinc oxide doped with tin, zinc oxide doped with silicon, lanthanum hexaboride or cerium hexaboride particles are added to the interlayer film for laminated glass; these intermediate films are excellent in heat insulation properties, electromagnetic wave permeability and the like, but are not preferable in appearance because the visible light transmittance is remarkably lowered in a weather resistance test or yellowing is caused by poor weather resistance.
In addition, a multilayer film in which a plurality of 2 kinds of polymer films having different refractive indices are alternately laminated may be used as an intermediate film for laminated glass, for example, U.S. Pat. No. 5,5360659 (a) discloses a two-component infrared reflective film comprising six alternating layer repeating units of polycarbonate and polymethyl methacrylate; chinese patent CN102333739(a) discloses that the infrared reflection layer is a multilayer film in which 2 kinds of polymer layers are alternately laminated, the total number of the layers is 50-200, and the polymer layers use polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polymethyl methacrylate, polyether sulfone, nylon, polyarylate, cycloolefin polymer, etc.; chinese patent CN105873876(a) discloses a multilayer resin film having an infrared-reflecting function, which is formed by alternately or randomly laminating two or more thermoplastic resin layers having different refractive indices in an arbitrary number of layers, wherein the number of the laminated layers may be 2 to 1000, and examples of the material include polyethylene, polypropylene, polylactic acid, poly (4-methylpentene-1), polyvinylidene fluoride, cyclic polyolefin, polymethyl methacrylate, polyvinyl chloride, polyvinyl alcohol, nylon 6, nylon 11, nylon 12, nylon 66 and other polyamides, polystyrene, polycarbonate, polyethylene terephthalate, polyethylene naphthalate, polyester, polyphenylene sulfide, polyether imide and the like; when the multi-layer resin film with the infrared reflection function is used for the automobile laminated glass, at least one layer of PVB film (polyvinyl butyral) needs to be compounded together to be used as the interlayer film for the laminated glass, and the multi-layer resin film and the PVB film have different material characteristics, so that appearance defects such as ripples, pits and the like are easily generated in the interlayer film in the production process of the laminated glass, and the multi-layer resin film is difficult to be applied to automobile glass products with complex curvatures.
The invention content is as follows:
the invention aims to solve the technical problem that an intermediate film with a heat insulation function is easy to generate appearance defects such as ripples or pits, and provides heat-insulated automobile laminated glass and a manufacturing method thereof.
The technical scheme adopted by the invention for solving the technical problems is as follows: a heat-insulating laminated glass for an automobile, comprising an outer glass plate, a heat-insulating intermediate layer and an inner glass plate, wherein the heat-insulating intermediate layer is sandwiched between the outer glass plate and the inner glass plate, the heat-insulating intermediate layer comprises a first thermoplastic resin film, an infrared reflection film and a second thermoplastic resin film which are sequentially laminated, the infrared reflection film comprises at least two resin films laminated together, and the difference of the refractive indexes of the two adjacent resin films is greater than or equal to 0.05, and the heat-insulating laminated glass is characterized in that: the infrared reflection film has a softening point temperature at least three times greater than the softening point temperatures of the first and second thermoplastic resin films.
Preferably, the difference between the refractive indices of the adjacent two resin films is greater than or equal to 0.1.
Preferably, the infrared reflection film has a softening point temperature of 250 to 300 ℃, and the first thermoplastic resin film and the second thermoplastic resin film have a softening point temperature of 60 to 90 ℃.
Preferably, the infrared reflection film includes 2 to 200 resin films alternately stacked, the resin film is made of at least one selected from polyethylene, polypropylene, polylactic acid, poly-4-methylpentene-1, polyvinylidene fluoride, cyclic polyolefin, polymethyl methacrylate, polyvinyl chloride, polyvinyl alcohol, polyamide, polystyrene, polycarbonate, polyethylene terephthalate, polyethylene naphthalate, polyester, polyphenylene sulfide, and polyether imide, and the first thermoplastic resin film and the second thermoplastic resin film are made of polyvinyl butyral.
Preferably, the infrared reflection film further comprises two auxiliary films, at least two resin films laminated together are clamped between the two auxiliary films, and the auxiliary films are made of polyethylene terephthalate. More preferably, the thickness of the first thermoplastic resin film and the second thermoplastic resin film is at least three times the total thickness of the at least two resin films laminated together, and the total thickness of the at least two resin films laminated together is at least two times the thickness of the auxiliary film. Specifically, the thickness of the first thermoplastic resin film and the second thermoplastic resin film is 0.18 to 0.50mm, the total thickness of the at least two resin films laminated together is 0.05 to 0.2mm, and the thickness of the auxiliary film 53 is 0.025 to 0.05 mm.
Preferably, at least one of an infrared absorbing material, an ultraviolet absorbing material, and a plasticizer is added to the first thermoplastic resin film and/or the second thermoplastic resin film. More preferably, the infrared absorbing material is selected from at least one of carbon black nanoparticles, tin-doped indium oxide nanoparticles, and tungsten oxide nanoparticles, the ultraviolet absorbing material is selected from at least one of benzotriazole-based ultraviolet absorbers, benzophenone-based ultraviolet absorbers, triazine-based ultraviolet absorbers, malonate-based ultraviolet absorbers, oxalic acid aniline-based ultraviolet absorbers, and benzoate-based ultraviolet absorbers, and the plasticizer is selected from at least one of organic ester plasticizers, organic phosphoric acid plasticizers, and organic phosphorous acid plasticizers.
Preferably, the first thermoplastic resin film has an ultraviolet transmittance smaller than that of the second thermoplastic resin film, and the first thermoplastic resin film has an infrared transmittance larger than that of the second thermoplastic resin film.
Preferably, at least one of the first thermoplastic resin film and the second thermoplastic resin film has a constant wedge angle, a continuously changing wedge angle, or a sound insulation function.
Meanwhile, the invention also provides a manufacturing method of the heat-insulating automobile laminated glass, which is characterized by comprising the following steps of:
step 1: preparing a first thermoplastic resin film, an infrared reflection film and a second thermoplastic resin film, sequentially laminating the first thermoplastic resin film, the infrared reflection film and the second thermoplastic resin film to obtain a heat insulation interlayer, and performing pre-cutting treatment on the heat insulation interlayer according to the final shape of the laminated glass;
step 2: flatly laying the heat insulation intermediate layer obtained in the step (1) in an environment with the temperature of 14-18 ℃ and the humidity of 18% -40% for at least 4 hours;
and step 3: preparing an outer glass plate and an inner glass plate, clamping the heat-insulating interlayer between the outer glass plate and the inner glass plate, and carrying out laminating treatment to obtain laminated glass;
and 4, step 4: carrying out primary pressure vacuum-pumping treatment on the laminated glass obtained in the step (3), wherein the primary pressure vacuum-pumping time is more than 30 minutes, and the linear speed is 20-60 seconds/grid;
and 5: and (4) carrying out autoclave treatment on the laminated glass obtained in the step (4) to obtain the final heat-insulating laminated glass.
Preferably, the environment temperature of the flat placement in the step 2 is 16 ℃ and the humidity is 20-30%.
Preferably, the time for primary pressure vacuum pumping in the step 4 is 30-60 minutes.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the heat-insulating automobile laminated glass and the manufacturing method thereof can prevent the heat-insulating intermediate layers from softening and extruding mutually at the same time, eliminate appearance defects such as ripples or pits and the like, ensure the appearance quality of the laminated glass, cannot block electromagnetic wave signals from passing through, and ensure communication and other additional functions in an automobile.
Description of the drawings:
FIG. 1 is a schematic structural view of an insulated automotive laminated glass according to the present invention;
FIG. 2 is a schematic structural view of an infrared reflective film according to the present invention;
the specific implementation mode is as follows:
the invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 and 2, the heat-insulating laminated glass for an automobile according to the present invention comprises an outer glass plate 1, a heat-insulating intermediate layer 2 and an inner glass plate 3, wherein the heat-insulating intermediate layer 2 is sandwiched between the outer glass plate 1 and the inner glass plate 3, the heat-insulating intermediate layer 2 comprises a first thermoplastic resin film 4, an infrared reflection film 5 and a second thermoplastic resin film 6 which are sequentially laminated, the infrared reflection film 5 comprises at least two resin films 51 and 52 which are laminated together, the difference between the refractive indexes of the two adjacent resin films 51 and 52 is greater than or equal to 0.05, preferably the difference between the refractive indexes of the two adjacent resin films 51 and 52 is greater than or equal to 0.1, so that the infrared reflection film 5 has a function of reflecting infrared rays; in the production process of the laminated glass, the heat insulation intermediate layer 2, the outer glass plate 1 and the inner glass plate 3 need to be laminated together, and subjected to initial pressing, vacuum pumping, autoclave treatment and the like, in order to eliminate the appearance defects such as ripples or pits which may be generated on the infrared reflection film 5 formed by at least two resin films 51 and 52 laminated together, the softening point temperature of the infrared reflection film 5 is preferably at least three times higher than the softening point temperature of the first thermoplastic resin film 4 and the second thermoplastic resin film 6, so that the first thermoplastic resin film 4 and the second thermoplastic resin film 6 can be softened earlier than the infrared reflection film 5 in the initial pressing, vacuum pumping, autoclave treatment and the like, so as to be attached to the infrared reflection film 5, thereby avoiding simultaneous softening and mutual extrusion, eliminating the appearance defects such as ripples or pits and the like, and ensuring the appearance quality of the laminated glass, electromagnetic wave signals cannot be prevented from passing through, and communication and other additional functions in the vehicle are guaranteed; more preferably, the infrared reflection film 5 has a softening point temperature of 250 to 300 ℃, for example, 280 ℃, and the first thermoplastic resin film 4 and the second thermoplastic resin film 6 have a softening point temperature of 60 to 90 ℃, for example, 70 ℃, 80 ℃.
The automobile laminated glass can be arranged at the position of an opening of a vehicle body, an outer glass plate 1 of the automobile laminated glass is positioned outside the vehicle, and an inner glass plate 3 of the automobile laminated glass is positioned inside the vehicle; fig. 1 shows that the first thermoplastic resin film 4 is located between the outer glass panel 1 and the infrared-reflective film 5, i.e., on the side close to the outer glass panel 1, and the second thermoplastic resin film 6 is located between the infrared-reflective film 5 and the inner glass panel 3, i.e., on the side close to the inner glass panel 3.
In fig. 1, the infrared reflection film 5 is formed by 8 resin films 51 and 52 alternately laminated, but the present invention is not limited thereto, and 2 or 3 resin films 51 and 52, even up to 200 resin films, may be alternately laminated, and the material of the resin films 51 and 52 of the infrared reflection film 5 may be selected from polyethylene, polypropylene, polylactic acid, poly-4-methylpentene-1, polyvinylidene fluoride, cyclic polyolefin, polymethyl methacrylate, polyvinyl chloride (PVC), polyvinyl alcohol, polyamide, polystyrene, polycarbonate, polyethylene terephthalate, polyethylene naphthalate, polyester, polyphenylene sulfide, or polyether imide. The material of the first thermoplastic resin film 4 and the second thermoplastic resin film 6 is preferably polyvinyl butyral (PVB) or the like.
In order to eliminate the appearance defects such as moire or dent of the infrared reflection film 5 more thoroughly, it is preferable that the infrared reflection film 5 further comprises two auxiliary films 53, at least two resin films 51, 52 laminated together are sandwiched between the two auxiliary films 53, and the auxiliary film 53 is made of polyethylene terephthalate (PET); preferably, the thickness of the first thermoplastic resin film 4 and the second thermoplastic resin film 6 is at least three times the total thickness of the at least two laminated resin films 51 and 52, and the total thickness of the at least two laminated resin films 51 and 52 is at least two times the thickness of the auxiliary film 53, so that the infrared reflection film 5 has certain toughness, can better eliminate appearance defects such as ripples or pits of the infrared reflection film 5, and is suitable for automobile glass products with complex curvature; specifically, the thickness of the first thermoplastic resin film 4 and the second thermoplastic resin film 6 is 0.18 to 0.50mm, for example, 0.38 mm; the total thickness of the at least two laminated resin films 51 and 52 is 0.05-0.2 mm, more preferably 0.05-0.1 mm, such as 0.1 mm; the auxiliary film 53 has a thickness of 0.025 to 0.05mm, for example, 0.05 mm.
In the present invention, at least one of an infrared absorbing material, an ultraviolet absorbing material, and a plasticizer is added to the first thermoplastic resin film 4 and/or the second thermoplastic resin film 6, so that the heat insulating intermediate layer 2 is combined with an infrared absorbing function or an ultraviolet absorbing function; more preferably, the first thermoplastic resin film 4 has an ultraviolet transmittance smaller than that of the second thermoplastic resin film 6, and the first thermoplastic resin film 4 has an infrared transmittance larger than that of the second thermoplastic resin film 6, so that the first thermoplastic resin film 4 shields ultraviolet rays to reduce the ultraviolet aging rate of the heat insulating intermediate layer 2, and the second thermoplastic resin film 6 absorbs infrared rays to further improve the heat insulating performance of the heat insulating intermediate layer 2. In particular, the infrared absorbing material may be selected from carbon black nanoparticles, doped tin oxideAt least one of Indium (ITO) nanoparticles and tungsten oxide nanoparticles, wherein the tungsten oxide nanoparticles are more preferably cesium-doped tungsten trioxide (Cs)0.33WO3) A nanoparticle; the ultraviolet absorbing material may be at least one selected from benzotriazole ultraviolet absorbers, benzophenone ultraviolet absorbers, triazine ultraviolet absorbers, malonate ultraviolet absorbers, oxalic acid aniline ultraviolet absorbers and benzoate ultraviolet absorbers; the plasticizer may be at least one selected from the group consisting of an organic ester plasticizer, which may be a mono-or poly-organic acid ester, an organic phosphoric acid plasticizer, and an organic phosphorous acid plasticizer.
In order to meet the requirement that the laminated glass of the automobile is combined with more functions, at least one of the first thermoplastic resin film 4 and the second thermoplastic resin film 6 has a constant wedge angle or a continuously changing wedge angle, so that the laminated glass of the automobile has a head-up display (HUD) function; meanwhile, at least one of the first thermoplastic resin film 4 and the second thermoplastic resin film 6 also has a sound insulation function, satisfying the sound insulation requirement of an automobile.
The invention also provides a method for manufacturing the heat-insulating automobile laminated glass, which is characterized by comprising the following steps of:
step 1: preparing a first thermoplastic resin film 4, an infrared reflection film 5 and a second thermoplastic resin film 6, sequentially laminating the first thermoplastic resin film, the infrared reflection film and the second thermoplastic resin film to obtain a heat insulation intermediate layer 2, and performing pre-cutting treatment on the heat insulation intermediate layer 2 according to the final shape of the laminated glass;
in the invention, an automatic cutting machine can be adopted to perform pre-cutting treatment on the heat-insulating middle layer 2, and the pre-cutting treatment before laminating can avoid the traditional trimming treatment of the laminated glass by using tools such as a paper cutter and the like after laminating, and eliminate the defects of diaphragm shrinkage, wrinkle and the like caused by the fact that the edge of the heat-insulating middle layer 2 is pulled by the trimming treatment.
Step 2: flatly laying the heat insulation intermediate layer 2 obtained in the step (1) in an environment with the temperature of 14-18 ℃ and the humidity of 18% -40% for at least 4 hours;
the pre-cut heat insulation intermediate layer 2 is laid flat for a period of time in the step 2, so that the stress of the cutting edge of the heat insulation intermediate layer 2 is eliminated, and the subsequent lamination quality can be improved; here, the temperature of the environment in which the infrared reflection film 5 is laid flat is more preferably 16 ℃ and the humidity is 20% to 30%, which can further reduce the mutual compression between the first thermoplastic resin film 4 and the second thermoplastic resin film 6.
And step 3: preparing an outer glass plate 1 and an inner glass plate 3, and clamping the heat-insulating interlayer 2 between the outer glass plate 1 and the inner glass plate 3 for laminating to obtain laminated glass;
and 4, step 4: carrying out primary pressure vacuum-pumping treatment on the laminated glass obtained in the step (3), wherein the primary pressure vacuum-pumping time is more than 30 minutes, and the linear speed is 20-60 seconds/grid;
by appropriately extending the preliminary press vacuum-pumping time and controlling the preliminary press vacuum-pumping speed in step 4, the degree of adhesion between the infrared-reflective film 5 and the first and second thermoplastic resin films 4 and 6 can be increased, avoiding their mutual pressing. Preferably, the time for primary pressure vacuum pumping is 30-60 minutes.
And 5: and (4) carrying out autoclave treatment on the laminated glass obtained in the step (4) to obtain the final heat-insulating laminated glass.
The foregoing description specifically describes an insulated laminated automotive glass and a method for manufacturing the same, but the present invention is not limited to the above-described embodiments, and therefore, any improvements, equivalent modifications, substitutions, and the like made in accordance with the technical gist of the present invention are intended to be within the scope of the present invention.
Claims (14)
1. A heat-insulating laminated glass for an automobile, comprising an outer glass plate, a heat-insulating intermediate layer and an inner glass plate, wherein the heat-insulating intermediate layer is sandwiched between the outer glass plate and the inner glass plate, the heat-insulating intermediate layer comprises a first thermoplastic resin film, an infrared reflection film and a second thermoplastic resin film which are sequentially laminated, the infrared reflection film comprises at least two resin films laminated together, and the difference of the refractive indexes of the two adjacent resin films is greater than or equal to 0.05, and the heat-insulating laminated glass is characterized in that: the infrared reflection film has a softening point temperature at least three times greater than the softening point temperatures of the first and second thermoplastic resin films.
2. The insulated automotive laminated glass according to claim 1, wherein: the difference between the refractive indices of the adjacent two resin films is 0.1 or more.
3. The insulated automotive laminated glass according to claim 1, wherein: the infrared reflection film has a softening point temperature of 250 to 300 ℃, and the first thermoplastic resin film and the second thermoplastic resin film have a softening point temperature of 60 to 90 ℃.
4. The insulated automotive laminated glass according to claim 1, wherein: the infrared reflection film comprises 2-200 layers of resin films which are alternately laminated, the material of the resin films is at least one selected from polyethylene, polypropylene, polylactic acid, poly (4-methylpentene-1), polyvinylidene fluoride, cyclic polyolefin, polymethyl methacrylate, polyvinyl chloride, polyvinyl alcohol, polyamide, polystyrene, polycarbonate, polyethylene terephthalate, polyethylene naphthalate, polyphenylene sulfide or polyetherimide, and the material of the first thermoplastic resin film and the second thermoplastic resin film is polyvinyl butyral.
5. The insulated automotive laminated glass according to claim 1, wherein: the infrared reflection film also comprises two layers of auxiliary films, at least two resin films which are laminated together are clamped between the two layers of auxiliary films, and the auxiliary films are made of polyethylene terephthalate.
6. The insulated automotive laminated glass according to claim 5, wherein: the first thermoplastic resin film and the second thermoplastic resin film have a thickness at least three times as large as the total thickness of the at least two resin films laminated together, and the total thickness of the at least two resin films laminated together is at least two times as large as the thickness of the auxiliary film.
7. The insulated automotive laminated glass according to claim 5, wherein: the first thermoplastic resin film and the second thermoplastic resin film have a thickness of 0.18 to 0.50mm, the at least two resin films laminated together have a total thickness of 0.05 to 0.2mm, and the auxiliary film has a thickness of 0.025 to 0.05 mm.
8. The insulated automotive laminated glass according to claim 1, wherein: at least one of an infrared absorbing material, an ultraviolet absorbing material, and a plasticizer is added to the first thermoplastic resin film and/or the second thermoplastic resin film.
9. The insulated automotive laminated glass according to claim 8, wherein: the infrared absorption material is selected from at least one of carbon black nanoparticles, doped tin indium oxide nanoparticles and tungsten oxide nanoparticles, the ultraviolet absorption material is selected from at least one of benzotriazole ultraviolet absorbers, benzophenone ultraviolet absorbers, triazine ultraviolet absorbers, malonate ultraviolet absorbers, oxalic acid aniline ultraviolet absorbers and benzoate ultraviolet absorbers, and the plasticizer is selected from at least one of organic ester plasticizers, organic phosphoric acid plasticizers and organic phosphorous acid plasticizers.
10. The insulated automotive laminated glass according to claim 1, wherein: the first thermoplastic resin film has an ultraviolet transmittance lower than that of the second thermoplastic resin film, and the first thermoplastic resin film has an infrared transmittance higher than that of the second thermoplastic resin film.
11. The insulated automotive laminated glass according to claim 1, wherein: at least one of the first thermoplastic resin film and the second thermoplastic resin film has a constant wedge angle, a continuously changing wedge angle, or a sound-insulating function.
12. A method of manufacturing a heat insulated automotive laminated glass according to any one of claims 1 to 11, characterized by comprising the steps of:
step 1: preparing a first thermoplastic resin film, an infrared reflection film and a second thermoplastic resin film, sequentially laminating the first thermoplastic resin film, the infrared reflection film and the second thermoplastic resin film to obtain a heat insulation interlayer, and performing pre-cutting treatment on the heat insulation interlayer according to the final shape of the laminated glass;
the infrared reflection film comprises at least two resin films which are laminated together, the difference of the refractive indexes of the two adjacent resin films is greater than or equal to 0.05, and the softening point temperature of the infrared reflection film is at least three times greater than the softening point temperature of the first thermoplastic resin film and the second thermoplastic resin film;
step 2: flatly laying the heat insulation intermediate layer obtained in the step (1) in an environment with the temperature of 14-18 ℃ and the humidity of 18% -40% for at least 4 hours;
and step 3: preparing an outer glass plate and an inner glass plate, clamping the heat-insulating interlayer between the outer glass plate and the inner glass plate, and carrying out laminating treatment to obtain laminated glass;
and 4, step 4: carrying out primary pressure vacuum-pumping treatment on the laminated glass obtained in the step (3), wherein the primary pressure vacuum-pumping time is more than 30 minutes, and the linear speed is 20-60 seconds/grid;
and 5: and (4) carrying out autoclave treatment on the laminated glass obtained in the step (4) to obtain the final heat-insulating laminated glass.
13. The method of claim 12, wherein the step of forming the heat-insulating laminated glass for automobiles comprises: the environment temperature of the flat laying in the step 2 is 16 ℃, and the humidity is 20-30%.
14. The method of claim 12, wherein the step of forming the heat-insulating laminated glass for automobiles comprises: and 4, the time for primary pressure vacuum pumping in the step 4 is 30-60 minutes.
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| CN111703151A (en) * | 2020-06-28 | 2020-09-25 | 福耀玻璃工业集团股份有限公司 | Interlayer heat insulation glass with local high infrared ray transmission |
| CN114571809B (en) * | 2022-03-10 | 2023-04-21 | 福耀玻璃工业集团股份有限公司 | Laminated glass |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5632352A (en) * | 1979-08-28 | 1981-04-01 | Honda Motor Co Ltd | Heat ray reflecting laminated glass for car |
| JP5344116B2 (en) * | 2008-01-09 | 2013-11-20 | セントラル硝子株式会社 | Plastic film insert laminated glass |
| JP2010222233A (en) * | 2009-02-27 | 2010-10-07 | Central Glass Co Ltd | Heat insulating laminated glass |
| WO2013168714A1 (en) * | 2012-05-08 | 2013-11-14 | コニカミノルタ株式会社 | Laminated glass |
| WO2016208548A1 (en) * | 2015-06-25 | 2016-12-29 | コニカミノルタ株式会社 | Optical film and optical laminate containing same |
| WO2019189736A1 (en) * | 2018-03-29 | 2019-10-03 | 積水化学工業株式会社 | Interlayer for laminated glass, laminated glass, and method of manufacturing head-up display system |
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