WO2020107464A1

WO2020107464A1 - Insulating glass structure

Info

Publication number: WO2020107464A1
Application number: PCT/CN2018/118727
Authority: WO
Inventors: 陆志全
Original assignee: 陆志全
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2020-06-04

Abstract

Disclosed is an insulating glass structure, comprising a first glass substrate (1), a second glass substrate (2), and a thermal barrier layer (3). The first glass substrate (1) and the second glass substrate (2) are arranged oppositely, the thermal barrier layer (3) is arranged between the first glass substrate (1) and the second glass substrate (2), multiple uniformly distributed particle units (31) are arranged in the thermal barrier layer (3), and each of the particle units (31) is loaded with nitrogen or an inert gas. Thus, the insulating glass structure can effectively reduce heat conductivity on the premise of meeting the requirement of structural strength of a high-rise building.

Description

Thermal insulation glass structure

Technical field

The invention relates to a double-layer glass, in particular to a heat-insulating glass structure which can be used for buildings and transportation vehicles.

Background technique

Because glass has good lighting and has a sense of fashion and design, modern buildings use a large number of large-area glass windows, and the appearance of glass has become popular. Although the building uses glass windows and glass appearance (such as glass curtains) to obtain a wide field of view and enhance aesthetics, under the hot summer sun, once the sun shines through the glass into the room, the indoor temperature will be The infrared ray in the middle rises; as a result, it is necessary to add a ventilation or cooling device to alleviate the discomfort caused by high temperature, and this will undoubtedly consume more energy.

According to expert statistics, in terms of general single-layer glass windows, the solar radiation heat introduced into the room through the window in summer accounts for about 20% to 30% of the air-conditioning load, and in winter the heat lost through the window accounts for about 30% to 50%. It can be seen that the thermal insulation performance of the glass windows of the building has a great influence on the indoor thermal environment and building energy consumption. Similarly, the heat insulation performance of the front and rear windshields of the car and the window glass on both sides is also one of the main factors affecting the thermal environment in the car and the energy consumption of the car.

In order to improve the heat insulation effect of glass, a common method is to coat a reflective layer on the inner surface of the glass layer to reflect the heat radiation of sunlight. Referring to FIG. 1, another common way is to evacuate or fill with inert gas between the two glass layers 1 ′, 2 ′. The formed intermediate layer 3 ′ can block thermal conduction and thermal convection. A reflective layer 4'is coated on the inner surface of the glass layer 1'to reflect the heat radiation of sunlight. However, the first method cannot block the heat conduction, so the heat insulation effect cannot meet the requirements of green buildings. The second method will reduce the strength and bearing capacity of the overall structure, so it cannot be used in high-rise or super-high-rise buildings.

In addition, China’s authorized announcement number 103459346 discloses a laminated glass in which a metal-doped tungsten oxide particle is mixed in the intermediate layer between the two glass layers to improve the thermal insulation effect of the glass, but this method requires more cost High cost.

Summary of the invention

The technical problem to be solved by the present invention is to provide a heat insulating glass structure that can balance the structural strength and the heat insulating effect in view of the deficiencies of the prior art.

In order to solve the above technical problems, one of the technical solutions adopted by the present invention is: an insulating glass structure, which includes a first glass substrate, a second glass substrate, and a thermal barrier layer. The first glass substrate is disposed opposite to the second glass substrate, and the thermal barrier layer is disposed between the first glass substrate and the second glass substrate, wherein the thermal barrier layer There are a plurality of particle units uniformly distributed, and each of the particle units carries nitrogen or an inert gas.

In an embodiment of the present invention, the plurality of particulate units account for 20% to 80% of the total weight of the thermal barrier layer.

In an embodiment of the invention, each of the particle units has a shell and a hollow core, and the hollow core is filled with nitrogen or inert gas.

In an embodiment of the invention, the particle size of the particle unit is between 5 microns and 200 microns, and the thickness of the shell is between 1 microns and 50 microns.

In an embodiment of the invention, the particle unit is a hollow structure capsule, and the material of the shell is a thermoplastic polymer.

In an embodiment of the present invention, the insulating glass structure further includes a reflective layer, wherein the first glass substrate has a first inner surface close to the thermal barrier layer and away from the thermal barrier layer A first outer surface, and the reflective layer is formed on the first inner surface.

In an embodiment of the invention, the reflective layer is attached to the first inner surface through a carrier.

In an embodiment of the invention, the insulating glass structure further includes a reflective layer, wherein the second glass substrate has a second inner surface close to the thermal barrier layer and away from the thermal barrier layer A second outer surface, and the reflective layer is formed on the second inner surface.

In an embodiment of the invention, the reflective layer is attached to the second inner surface through a carrier.

In an embodiment of the invention, the thickness ratio of the first glass substrate, the thermal barrier layer and the second glass substrate is 1:0.05-0.2:1.

One of the beneficial effects of the present invention is that the insulating glass structure provided by the embodiment of the present invention can be provided between the first glass substrate and the second glass substrate by "the thermal barrier layer" And the technical feature of "the thermal barrier layer has a plurality of particulate units uniformly distributed, and each of the particulate units carries nitrogen or inert gas" to meet the structural strength requirements of the high floors of the building, Effectively reduce thermal conductivity.

In order to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are for reference and description only, and are not intended to limit the present invention.

BRIEF DESCRIPTION

FIG. 1 is a schematic structural diagram of a double-layer glass in the prior art.

FIG. 2 is a schematic structural diagram of a heat insulating glass structure according to a first embodiment of the present invention.

FIG. 3 is a schematic structural view of a particle unit in a thermal insulation glass structure according to a first embodiment of the invention.

FIG. 4 is a schematic structural diagram of one embodiment of a heat-insulating glass structure according to a second embodiment of the present invention.

FIG. 5 is a schematic structural diagram of another embodiment of a heat-insulating glass structure according to a second example of the present invention.

FIG. 6 is a schematic structural diagram of one embodiment of a heat-insulating glass structure according to a third example of the present invention.

FIG. 7 is a schematic structural diagram of another embodiment of a heat-insulating glass structure according to a third example of the present invention.

detailed description

The concept of green building refers to consuming the least earth resources, using the least energy and producing the least waste in the life cycle of the building; in order to improve the global environment, ensure environmental quality and manage environmental resources sustainably, the development of green buildings is an inevitable trend. In my country, because of the cross-tropical and sub-tropical climates, buildings must fully consider the thermal insulation effect. The more common design is to use thermal insulation glass to prevent the indoor temperature from rising due to sunlight, thereby reducing the energy consumption of air conditioning. Therefore, the present invention provides an insulating glass structure, which can reduce heat conduction, convection and radiation, while maintaining a certain structural strength; applying the insulating glass structure of the present invention to green buildings, especially high-rise buildings Structures (such as glass curtains and glass windows) can improve the actual use efficiency of green buildings.

The following is a specific specific example to illustrate the implementation of the "insulating glass structure" disclosed by the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments. Various details in this specification can also be based on different viewpoints and applications, and various modifications and changes can be made without departing from the concept of the present invention. In addition, the drawings of the present invention are merely schematic illustrations, and are not drawn according to actual sizes, and are declared in advance. The following embodiments will further describe related technical contents of the present invention in detail, but the disclosed contents are not intended to limit the protection scope of the present invention.

It should be understood that although terms such as “first”, “second”, and “third” may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" as used herein may include any combination of any one or more of the associated listed items, depending on the actual situation.

First embodiment

Referring to FIG. 2, the insulating glass structure G1 according to the first embodiment of the present invention mainly includes a first glass substrate 1, a second glass substrate 2 and a thermal barrier layer 3. The first glass substrate 1 and the second glass substrate 2 are oppositely arranged, and the thermal barrier layer 3 is disposed between the first glass substrate 1 and the second glass substrate 2. It is worth noting that the thermal barrier layer 3 has a plurality of particulate units 31 uniformly distributed, and each particulate unit 31 carries nitrogen or an inert gas.

Specifically, the first and

second glass substrates

1 and 2 may be float glass or strengthened glass substrates, but are not limited thereto. The first glass substrate 1 has a first inner surface 11 and a first outer surface 12 opposite, and the second glass substrate 2 has a second inner surface 21 and a second outer surface 22 opposite; the first glass substrate The material 1 and the second glass substrate 2 are bonded together by a thermal barrier layer 3, wherein the thermal barrier layer 3 is connected between the first inner surface 11 and the second inner surface 21. In practice, the first outer surface 12 of the first glass substrate 1 may be in an outdoor environment, such as a surrounding environment of a building or a car, and may be directly exposed to sunlight, and the second outer surface 22 of the second glass substrate 2 It can be in an indoor environment, such as a warm environment in a building or a car.

The thickness ratio of the first glass substrate 1, the thermal barrier layer 3 and the second glass substrate 2 may be 1:0.05-0.2:1; for example, the thickness of the first and

second glass substrates

1, 2 may be between Between 2 mm and 20 mm, the thickness of the thermal barrier layer 3 may be between 0.1 mm and 4 mm. The components of the thermal barrier layer 3 may include the fine particle unit 31, a resin material, and functional additives, of which polyvinyl butyral (PVB) may be used as the resin material, and a dispersant, a plasticizer, etc. may be used as the functional additive. However, the invention is not limited to the examples given above. In practice, these components can be added to an extruder (such as a twin-screw extruder), melt-kneaded under appropriate conditions, and then extruded through the die of the extruder.

Referring back to FIG. 2 in conjunction with FIG. 3, in order to ensure that the thermal barrier layer 3 can achieve a good thermal insulation effect, the content of the plurality of particulate units 31 can account for 20% to 80% of the total weight of the thermal barrier layer 3, each particle The unit 31 has a housing 311 and a hollow core 312, and the hollow core 312 is filled with nitrogen or inert gas. In this embodiment, the average particle size of each particle unit 31 may be between 5 microns and 200 microns, and the thickness of the outer shell 311 may be between 1 microns and 50 microns. Thereby, the particle unit 31 can effectively reduce the heat transfer path between the first glass substrate 1 and the second glass substrate 2 without reducing the overall structural strength.

Further, when sunlight is irradiated on the first glass substrate 1, the generated heat is difficult to be transferred to the second glass substrate 2 through the thermal barrier layer 3, thereby reducing the influence of the external environment on the indoor temperature. In addition, the ambient heat inside the second glass substrate 2 is also difficult to be transferred to the first glass substrate 1 through the thermal barrier layer 3, thereby preventing heat loss in the room.

In this embodiment, the microparticle unit 31 may be a hollow structure capsule, and the material of the outer shell 311 may be a thermoplastic polymer. The thermoplastic polymer may contain various functional monomers, for example, monomers for improving moldability, monomers for improving gas barrier properties, crosslinking monomers, and auxiliary monomers. Examples of monomers for improving moldability include (meth)acrylates, vinylidene chloride, vinyl acetate and styrene monomers; examples of monomers for improving gas barrier properties include (meth)acrylic acid Nitrile; cross-linkable monomers include polyethylene glycol and trimethylolpropane tri(meth)acrylate; auxiliary monomers include acrylic acid, methacrylic acid, maleic acid, maleic acid Anhydride and itaconic acid. However, the invention is not limited to the examples given above.

Second embodiment

Referring to FIGS. 4 and 5, the insulating glass structure G2 of this embodiment is suitable for tropical climate regions, and its design is roughly the same as that of the first embodiment. The main difference is that the insulating glass structure G2 further includes a reflective layer 4, which It is formed on the first inner surface 11 of the first glass substrate 1; the reflective layer 4 can reflect most ultraviolet rays and infrared rays and transmit visible light. It is worth noting that the thermal insulation glass structure G2 can further block the heat radiation to prevent the heat of the external environment from being transferred inward in the form of heat radiation, thereby reducing the influence of the external environment on the indoor temperature when the weather is hot.

In this embodiment, as shown in FIG. 4, the reflective layer 4 can be directly formed on the first inner surface 11 of the first glass substrate 1 by evaporation or sputtering. Or, As shown in FIG. 5, the reflective layer 4 can also be formed on a carrier 5 and then bonded to the first inner surface 11 of the first glass substrate 1 through the carrier 5. The thickness of the reflective layer 4 may be between 20 nm and 900 nm. The reflective layer 4 may be a metal layer, which may be formed of silver or silver alloy; the reflective layer 4 may also be a composite layer, which may be formed by stacking metal oxides such as titanium oxide, niobium oxide, and silicon oxide.

Further, the carrier 5 can be a transparent substrate, and has a first bonding surface 51 and a second bonding surface 52 opposite to each other; a reflective layer 4 is formed on the first bonding surface 51, and a second bonding surface 52 is formed with a Glue layer 6. In this way, the carrier 5 can be bonded to the first inner surface 11 of the first glass substrate 1 through the adhesive layer 6 to arrange the reflective layer 4 between the first glass substrate 1 and the thermal barrier layer 3. In practice, a roll-to-roll process can be used to form the reflective layer 4 and the glue layer 6 simultaneously on the first bonding surface 51 and the second bonding surface 52 of the carrier 5 to reduce production costs.

The carrier 5 can be made of polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polycarbonate (PC), polymethyl methacrylate (PMMA), polyimide (PI ) Or triacetate cellulose (TAC); the glue layer 6 may be formed of PMMA, PVB, polyamide (PA), polyethersulfone (PES) or ethylene vinyl acetate copolymer (EVA). However, the invention is not limited to the examples given above.

Third embodiment

Referring to FIGS. 6 and 7, the thermal insulation glass structure G3 of this embodiment is suitable for cold climate regions, and its design is substantially the same as that of the second embodiment. The main difference is that the reflective layer 4 is formed on the second glass substrate 2 On the second inner surface 21. It is worth noting that the insulating glass G3 can further block the heat radiation to prevent the heat of the internal environment from escaping in the form of heat radiation, so as to maintain the indoor temperature as much as possible when the weather is cold.

In this embodiment, as shown in FIG. 6, the reflective layer 4 can be directly formed on the second inner surface 21 of the second glass substrate 2 by evaporation or sputtering. Or, As shown in FIG. 7, the reflective layer 4 can also be formed on a carrier 5 and then bonded to the second inner surface 21 of the second glass substrate 2 through the carrier 5. The thickness of the reflective layer 4 may be between 20 nm and 900 nm. The reflective layer 4 may be a metal layer, which may be formed of silver or silver alloy; the reflective layer 4 may also be a composite layer, which may be formed by stacking metal oxides such as titanium oxide, niobium oxide, and silicon oxide.

Further, the carrier 5 can be a transparent substrate, and has a first bonding surface 51 and a second bonding surface 52 opposite to each other; a reflective layer 4 is formed on the first bonding surface 51, and a second bonding surface 52 is formed with a Glue layer 6. In this way, the carrier 5 can be bonded to the second inner surface 21 of the second glass substrate 2 through the glue layer 6 to arrange the reflective layer 4 between the second glass substrate 2 and the thermal barrier layer 3.

Advantageous effects of the embodiment

One of the beneficial effects of the present invention is that the heat-insulating glass structure provided by the embodiments of the present invention can pass the "thermal barrier layer between the first glass substrate and the second glass substrate" and "the thermal barrier layer" It has a plurality of particle units uniformly distributed, and each particle unit carries nitrogen or inert gas. The technical feature is to effectively reduce the thermal conductivity under the premise of meeting the structural strength requirements of the high floors of the building.

Furthermore, each particle unit has a shell and a hollow core, and the hollow core is filled with nitrogen or inert gas. In this way, the microparticle unit can effectively reduce the heat transfer path between the first glass substrate and the second glass substrate, including two ways of heat conduction and heat convection, without reducing the overall structural strength.

Furthermore, a reflective layer may be formed on the first inner surface of the first glass substrate to prevent the heat of the external environment from being transferred inward in the form of heat radiation; or, the second surface of the second glass substrate A reflective layer is formed on the inner surface to prevent the heat of the internal environment from escaping in the form of heat radiation.

As mentioned above, the thermal insulation glass structure of the present invention can reduce the influence of the external environment on the indoor temperature when the weather is hot, and can maintain the indoor temperature as much as possible when the weather is cold, which greatly contributes to energy saving and carbon reduction.

The content disclosed above is only a preferred and feasible embodiment of the present invention and does not limit the claims of the present invention. Therefore, any equivalent technical changes made by using the description and drawings of the present invention are included in the claims of the present invention. Inside.

Claims

An insulating glass structure, characterized in that the insulating glass structure includes:

A first glass substrate;

A second glass substrate, the second glass substrate being opposite to the first glass substrate; and

A thermal barrier layer, the thermal barrier layer is disposed between the first glass substrate and the second glass substrate, wherein the thermal barrier layer has a plurality of particle units uniformly distributed, and each The particulate unit contains nitrogen or inert gas.
The insulating glass structure according to claim 1, wherein a plurality of the particulate units account for 20% to 80% of the total weight of the thermal barrier layer.
The insulating glass structure according to claim 1, wherein each of the particulate units has an outer shell and a hollow core, and the hollow core is filled with nitrogen or inert gas.
The insulating glass structure according to claim 3, wherein the particle size of the particulate unit is between 5 microns and 200 microns, and the thickness of the shell is between 1 microns and 50 microns.
The insulating glass structure according to claim 4, wherein the particulate unit is a hollow structure capsule, and the material of the shell is a thermoplastic polymer.
The insulating glass structure of claim 1, wherein the insulating glass structure further comprises a reflective layer, wherein the first glass substrate has a first inner surface close to the thermal barrier layer And a first outer surface away from the thermal barrier layer, and the reflective layer is formed on the first inner surface.
The insulating glass structure of claim 6, wherein the reflective layer is attached to the first inner surface through a carrier.
The insulating glass structure of claim 1, wherein the insulating glass structure further comprises a reflective layer, wherein the second glass substrate has a second inner surface close to the thermal barrier layer And a second outer surface away from the thermal barrier layer, and the reflective layer is formed on the second inner surface.
The heat-insulating glass structure of claim 8, wherein the reflective layer is attached to the second inner surface by a carrier.
The heat-insulating glass structure according to claim 1, wherein the thickness ratio of the first glass substrate, the thermal barrier layer and the second glass substrate is 1:0.05-0.2:1.