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CN-122008644-A - Sandwich type energy storage heating glass containing carbon black

CN122008644ACN 122008644 ACN122008644 ACN 122008644ACN-122008644-A

Abstract

The invention belongs to the field of glass, and particularly relates to carbon black-containing sandwich type energy storage heating glass, which comprises first substrate glass, a first bonding layer, a carbon black photo-thermal conversion layer, a phase change energy storage layer, a second bonding layer and second substrate glass which are sequentially stacked, wherein the carbon black photo-thermal conversion layer contains silane coupling agent modified carbon black, the phase change energy storage layer comprises microencapsulated composite phase change materials and a porous silica carrier, and the phase change materials in the microencapsulated composite phase change materials comprise paraffin and stearic acid. The energy storage heating glass provided by the invention has low production cost, good light transmittance and photo-thermal conversion efficiency, and strong stability and weather resistance.

Inventors

  • CHEN JIANHUI
  • ZHANG LU
  • ZHANG ZHENGHAO
  • XU YIMING
  • GAO QING

Assignees

  • 河北大学

Dates

Publication Date
20260512
Application Date
20260211

Claims (10)

  1. 1. The sandwich type energy storage heating glass containing the carbon black is characterized by comprising first substrate glass, a first bonding layer, a carbon black photo-thermal conversion layer, a phase change energy storage layer, a second bonding layer and second substrate glass which are sequentially stacked; The carbon black photo-thermal conversion layer contains silane coupling agent modified carbon black; The phase change energy storage layer comprises a microencapsulated composite phase change material and a porous silica carrier, wherein the phase change material in the microencapsulated composite phase change material comprises paraffin and stearic acid.
  2. 2. The sandwich type energy storage heating glass according to claim 1, wherein the silane coupling agent modified carbon black is prepared by modifying a carbon black raw material with a silane coupling agent, the carbon black raw material is common carbon black and/or conductive carbon black, the particle size of the carbon black raw material is 5-50 nm, and the silane coupling agent is one or more of KH550, KH560, KH570 and KH 590.
  3. 3. The interlayer energy storage heating glass according to claim 1, wherein the carbon black light-to-heat conversion layer further comprises a sizing material.
  4. 4. The sandwich energy storage heating glass according to claim 3, wherein the sizing material is one or more of ethylene-vinyl acetate copolymer, polyvinyl butyral and polyolefin elastomer, and the mass ratio of the silane coupling agent modified carbon black in the carbon black photo-thermal conversion layer to the sizing material is 1 (10-20).
  5. 5. The sandwich-type energy storage and heating glass according to claim 1, wherein the thickness of the carbon black photo-thermal conversion layer is 30-150 μm.
  6. 6. The interlayer energy storage heating glass according to claim 1, wherein the paraffin accounts for 50-90 wt% of the total mass of the paraffin and the stearic acid.
  7. 7. The energy-storage heating glass with the interlayer according to claim 1, wherein the phase-change material further comprises palmitic acid, and the content of the palmitic acid in the phase-change material is 10-30wt%.
  8. 8. The interlayer energy storage heating glass according to claim 1, wherein the particle size of the microencapsulated composite phase change material is 0.5-5 μm.
  9. 9. The sandwich-type energy storage and heating glass according to claim 1, wherein the mass ratio of the microencapsulated composite phase change material in the phase change energy storage layer to the porous silica carrier is (1-5): 1.
  10. 10. The sandwich-type energy storage and heating glass according to claim 1, wherein the thickness of the phase-change energy storage layer is 1-5 mm.

Description

Sandwich type energy storage heating glass containing carbon black Technical Field The invention belongs to the field of glass, and particularly relates to a sandwich type energy storage heating glass containing carbon black. Background In the field of modern buildings and traffic, glass is used as an important lighting and enclosing material, and has extremely wide application. However, conventional glass suffers from significant problems during use, which constitute a background for the development of energy storage heating glass. First, in cold areas or winter, the glass surface is extremely prone to frosting or fogging due to excessively low temperatures. The glass light transmittance performance can be seriously affected, the indoor lighting effect and the visual field definition are reduced, driving safety is directly related to vehicles such as automobiles and airplanes, and the operation burden of defrosting and demisting and the energy consumption are increased. The traditional solution is to directly blow by using warm air of an air conditioner or heat by using a resistance wire, and the problems of low heating speed, high energy consumption, uneven heating, possibility of influencing the attractive appearance and the structural strength of glass and the like are often caused. Second, conventional glass is generally poor in thermal insulation and heat preservation performance, and is one of the main ways of dissipating heat of buildings and vehicles. This results in the need to consume large amounts of energy to maintain proper temperatures in the room or cabin during winter, exacerbating the energy shortage and carbon emission problems. Although the application of energy-saving glass such as hollow glass, low-E glass and the like improves the heat insulation performance to a certain extent, the energy-saving glass does not have the functions of active heating and energy storage, and the requirements of frosting and fogging and rapid local temperature rise in a Low-temperature environment cannot be fundamentally met. Furthermore, with the development of new energy industry and the rise of intelligent architecture and intelligent traffic concepts, higher functional requirements are put on glass materials. It is expected that the glass not only can meet basic lighting and decoration requirements, but also has intelligent characteristics such as active temperature control, energy management and the like. For example, how to collect, store and release heat as needed to improve the efficiency of energy utilization is an important research direction in terms of solar energy utilization. In addition, in some special environments or application scenes, such as greenhouses in cold regions, display screen protection covers of outdoor electronic equipment, and the like, glass is required to maintain clear light transmittance at a lower temperature and maintain a certain temperature so as to ensure the growth of plants in the interior or the normal operation of the equipment. Conventional glass has difficulty meeting the requirements of accurate temperature control and energy self-sufficiency in these specific scenarios. Therefore, in order to solve the problems of easy frosting and fog formation, limited heat insulation and heat preservation performance, low energy utilization efficiency and the like of the traditional glass in a low-temperature environment, the urgent requirements of the modern society on energy conservation, intelligence and safety materials are met, and the research and development of the energy storage heating glass capable of storing heat and releasing according to the requirement to realize the active heating function becomes a necessary trend. The energy storage heating glass aims at storing and releasing energy by combining an energy storage material with a glass substrate and utilizing phase change latent heat of the energy storage material, so that temperature regulation and control of the glass surface are realized, frost fog generation is effectively prevented, the temperature in a room or a specific space is assisted to be raised, and the effects of energy conservation, intelligence and safety are achieved. However, the existing energy storage heating glass has the problems of high production cost, difficult balance between light transmittance and light-heat conversion efficiency, poor stability and the like. Disclosure of Invention In view of the above, the invention aims to provide the carbon black-containing sandwich type energy storage heating glass, which has low production cost, good light transmittance and photo-thermal conversion efficiency, and strong stability and weather resistance. The invention provides carbon black-containing sandwich energy storage heating glass, which comprises first substrate glass, a first bonding layer, a carbon black photo-thermal conversion layer, a phase change energy storage layer, a second bonding layer and second substrate glass which ar