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CN-121973511-A - Laminated glass and product

CN121973511ACN 121973511 ACN121973511 ACN 121973511ACN-121973511-A

Abstract

The present application relates to a laminated glass and a product. The laminated glass includes a first glass sheet, an infrared reflecting layer, an intermediate composite layer, a second glass sheet, and a low emissivity layer. The heat resistance coefficient ZR of the laminated glass meets the formula ZR= (T IR /R IR ) e 100, and ZR=0.01-1.7. The laminated glass can enable the heat resistance coefficient ZR of the laminated glass to reach a preset low value level by controlling and adjusting the T IR /R IR and the emissivity e, thereby having ideal heat resistance breaking effect and bringing better human body surface feeling to passengers. And, it is found that when ZR is more than or equal to 0.01 and less than or equal to 1.7, the laminated glass not only can achieve more ideal heat blocking effect, but also other functions of the laminated glass can not be obviously reduced. In addition, the visible light transmittance TL 1 of the first glass plate is more than or equal to 88%, the visible light transmittance TL 2 of the second glass plate is more than or equal to 80%, namely TL 1 and TL 2 are larger, so that the heat absorption is reduced in summer when the sunlight irradiates, and the scalding defect caused by overlarge heat absorption can be avoided.

Inventors

  • HONG JINQUAN

Assignees

  • 福耀玻璃工业集团股份有限公司

Dates

Publication Date
20260505
Application Date
20260114

Claims (16)

  1. 1. A laminated glass, comprising: A first glass sheet having a first face and a second face, an infrared reflecting layer, an intermediate composite layer, a second glass sheet having a third face and a fourth face, the middle composite layer is connected with the second surface and the third surface, the infrared reflecting layer is arranged between the first glass plate and the second glass plate, and the low-radiation layer is arranged on the fourth surface; The heat resistance coefficient ZR of the laminated glass satisfies the formula ZR= (T IR /R IR ) e 100, and ZR=0.01-1.7, wherein T IR is the transmittance of the laminated glass to infrared rays with the wavelength of 780-2500 nm, R IR is the reflectance of the laminated glass to infrared rays with the wavelength of 780-2500 nm measured from the side, away from the second glass plate, of the first surface, and e is the emissivity of the laminated glass measured from the side, away from the second glass plate, of the low-emissivity layer; The visible light transmittance of the first glass plate is TL 1 ,TL 1 -88%, and the visible light transmittance of the second glass plate is TL 2 ,TL 2 -80%.
  2. 2. The laminated glass according to claim 1, wherein T IR is equal to or less than 4%, or T IR is equal to or less than 3%, or T IR is equal to or less than 2%, or T IR is equal to or less than 1%.
  3. 3. The laminated glass according to claim 1, wherein R IR is not less than 48%, or R IR is not less than 50%, or R IR is not less than 55%, or R IR is not less than 60%, or R IR is not less than 65%, or R IR is not less than 70%.
  4. 4. The laminated glass according to claim 1, wherein the visible light transmittance of the intermediate composite layer is TL 3 ,TL 3 ≥70%, or TL 3 ≥80%, or TL 3 ≥85%, or TL 3 ≤44%, or 2≤tl 3 ≤30%.
  5. 5. The laminated glass according to claim 1, wherein the visible light transmittance of the laminated glass is TL 4 ,TL 4 ≤8%, or TL 4 ≤6%, or TL 4 ≤5%, or TL 4 ≤2%.
  6. 6. The laminated glass according to claim 1, wherein the second glass plate provided with the low-emissivity layer has a visible light transmittance of TL 5 ;TL 2 ≥80％,TL 5 ≤10%, or TL 2 ≥95％,TL 5 ≤8%.
  7. 7. The laminated glass according to claim 1, wherein 0<e≤0.45, or 0.03< e≤0.3, or 0.05< e≤0.25, or 0.1< e≤0.23, or 0.15< e≤0.2.
  8. 8. The laminated glass according to claim 1, wherein 0.01≤ZR≤0.5, or 0.1≤ZR≤0.3, or 0.2≤ZR≤0.25.
  9. 9. The laminated glass according to claim 1, wherein the laminated glass has a total solar transmittance of TTS, TTS of 15% or less, or TTS of 14% or less, or TTS of 13% or less, or TTS of 12% or less.
  10. 10. The laminated glass according to claim 1, wherein the laminated glass has a total solar reflectance, measured from the side of the first side remote from the second glass pane, of RE 1 ,RE 1 ≡25%, or RE 1 ≡30%, or RE 1 ≡33%, or RE 1 ≡35%, or RE 1 ≡38%, or RE 1 ≡40%, or RE 1 ≡45%, or RE 1 ≡50%.
  11. 11. The laminated glass according to claim 1, wherein the infrared reflecting layer is provided on the second face, or in the intermediate composite layer, or in the third face.
  12. 12. The laminated glass according to claim 1, wherein the emissivity of the laminated glass measured from a side of the infrared reflecting layer remote from the second glass sheet is K,0.02< k≤0.15, or 0.04< k≤0.13, or 0.06< k≤0.1.
  13. 13. The laminated glass according to claim 1, wherein the solar reflectance of the infrared reflecting layer is RE 2 ,RE 2 ≥30%, or RE 2 ≥35%, or RE 2 ≥40%, or RE 2 ≥45%, or RE 2 ≥50%.
  14. 14. The laminated glass according to claim 1, wherein the laminated glass has a visible light reflectance of RL 1 ,RL 1 % or less, or RL 1 % or less, or RL 1 % or less, or RL 1 % or less, 2% or RL 1 % or less, measured from a side of the low-emissivity layer remote from the second glass sheet.
  15. 15. The laminated glass according to claim 1, wherein the laminated glass has a visible light reflectance of RL 2 ,RL 2 ≤17%, or RL 2 ≤15%, or RL 2 ≤13%, or RL 2 ≤10%, measured from a side of the first face remote from the second glass sheet.
  16. 16. An article comprising a laminated glass as defined in any one of claims 1 to 15.

Description

Laminated glass and product Technical Field The application relates to the technical field of glass, in particular to laminated glass and a product. Background Along with the rapid development of vehicles, more and more vehicle types adopting fixed panoramic backdrop are adopted, and the design of the sun-shading-free backdrop is favored by most vehicle enterprises. The design obtains more space in the vehicle, in particular to a new energy automobile. However, in winter, the temperature outside the vehicle is lower than the temperature inside the vehicle, a large amount of heat in the vehicle is radiated outwards through the panoramic glass, the panoramic glass becomes an ice top plate, in summer, the temperature inside the vehicle is higher under the high-temperature environment and the effect of strong direct sunlight, the panoramic glass is easily heated to be a hot top plate, the defect of mistakenly touching and scalding users is caused, and the comfort is lower. Disclosure of Invention Based on this, it is necessary to provide a laminated glass and a product, which can have a good heat blocking effect, avoid the defect of false touch and scald caused by the overhigh glass temperature, and improve the comfort, aiming at the defects of the prior art. In one aspect, the present application provides a laminated glass comprising: A first glass sheet having a first face and a second face, an infrared reflecting layer, an intermediate composite layer, a second glass sheet having a third face and a fourth face, the middle composite layer is connected with the second surface and the third surface, the infrared reflecting layer is arranged between the first glass plate and the second glass plate, and the low-radiation layer is arranged on the fourth surface; The heat resistance coefficient ZR of the laminated glass satisfies the formula ZR= (T IR/RIR) e 100, and ZR=0.01-1.7, wherein T IR is the transmittance of the laminated glass to infrared rays with the wavelength of 780-2500 nm, R IR is the reflectance of the laminated glass to infrared rays with the wavelength of 780-2500 nm measured from the side, away from the second glass plate, of the first surface, and e is the emissivity of the laminated glass measured from the side, away from the second glass plate, of the low-emissivity layer; The visible light transmittance of the first glass plate is TL 1,TL1 -88%, and the visible light transmittance of the second glass plate is TL 2,TL2 -80%. In one embodiment, T IR is 4% or less, or T IR is 3% or less, or T IR is 2% or less, or T IR is 1% or less. In one embodiment, R IR is greater than or equal to 48%, or R IR is greater than or equal to 50%, or R IR is greater than or equal to 55%, or R IR is greater than or equal to 60%, or R IR is greater than or equal to 65%, or R IR is greater than or equal to 70%. In one embodiment, the intermediate composite layer has a visible light transmittance of TL 3,TL3 ≡70%, or TL 3 ≡80%, or TL 3 ≡85%, or TL 3 ≡44%, or TL 3 ≡30%. In one embodiment, the laminated glass has a visible light transmittance of TL 4,TL4≤8%, or TL 4≤6%, or TL 4≤5%, or TL 4≤2%. In one embodiment, the second glass sheet provided with the low emissivity layer has a visible light transmittance of TL 5;TL2≥80％,TL5 10% or less, or TL 2≥95％,TL5 8% or less. In one embodiment 0<e≤0.45, or 0.03< e≤0.3, or 0.05< e≤0.25, or 0.1< e≤0.23, or 0.15< e≤0.2. In one embodiment, 0.01. Ltoreq.ZR≤0.5, or 0.1. Ltoreq.ZR≤0.3, or 0.2. Ltoreq.ZR≤0.25. In one embodiment, the laminated glass has a total solar transmittance of TTS, TTS of 15% or less, or TTS of 14% or less, or TTS of 13% or less, or TTS of 12% or less. In one embodiment, the laminated glass has a total solar reflectance of RE 1,RE1% or more, or RE 1% or more, or RE 1% or more, or RE 1% or more, or RE 1% or more, or RE 1% or more, or RE 1% or more, 45% or more, or RE 1% or more, as measured from the side of the first side remote from the second glass sheet. In one embodiment, the infrared reflecting layer is disposed on the second face, or disposed within the intermediate composite layer, or disposed on the third face. In one embodiment, the emissivity of the laminated glass measured from the side of the infrared reflective layer remote from the second glass sheet is K,0.02< K≤0.15, or 0.04< K≤0.13, or 0.06< K≤0.1. In one embodiment, the solar reflectance of the infrared reflective layer is RE 2,RE2. Gtoreq.30%, or RE 2. Gtoreq.35%, or RE 2. Gtoreq.40%, or RE 2. Gtoreq.45%, or RE 2. Gtoreq.50%. In one embodiment, the laminated glass has a visible light reflectance of RL 1,RL1% or less, or RL 1% or less, or RL 1% or less, or RL 1% or less, or 2% or RL 1% or less, measured from the side of the low-emissivity layer remote from the second glass sheet. In one embodiment, the laminated glass has a visible light reflectance of RL 2,RL2≤17%, or RL 2≤15%, or RL 2≤13%, or RL 2≤10%, measured from the side of the first face remote from the second glass sheet. In another aspect,