CN210127190U

CN210127190U - Heat-insulating composite functional PVB intermediate film

Info

Publication number: CN210127190U
Application number: CN201821947994.8U
Authority: CN
Inventors: 谢怀玉; 莫国军; 叶卫民
Original assignee: Zhejiang Deste New Materials Ltd By Share Ltd
Current assignee: Zhejiang Deste New Materials Ltd By Share Ltd
Priority date: 2018-11-26
Filing date: 2018-11-26
Publication date: 2020-03-06
Anticipated expiration: 2028-11-26

Abstract

The utility model belongs to the technical field of PVB intermediate coat technique and specifically relates to a thermal-insulated complex function type PVB intermediate coat. This thermal-insulated compound functional type PVB intermediate coat includes two-layer insulating layer, prevents ultraviolet layer, prevents infrared layer and tensile layer, the both sides on tensile layer are equipped with respectively prevent ultraviolet layer and prevent infrared layer, prevent ultraviolet layer with the outside on preventing infrared layer is equipped with respectively the insulating layer, the inside even thermal-insulated particle that is equipped with of insulating layer, prevent the inside even ultraviolet separation particle that is equipped with in ultraviolet layer, prevent the inside even infrared separation particle that is equipped with in infrared layer, the inside stretch-proofing particle that is equipped with of tensile layer, the inside thermal insulation material and the auxiliary agent that includes of insulating layer, the even and tight parcel of auxiliary agent is in outside thermal insulation material.

Description

Heat-insulating composite functional PVB intermediate film

Technical Field

The utility model belongs to the technical field of PVB intermediate coat technique and specifically relates to a thermal-insulated complex function type PVB intermediate coat.

Background

With the rapid development of society, saving energy and reducing pollutant emission become concerns of all mankind, and according to the report of international environmental planning administration, buildings consume one third of global energy. The proportion of the energy is generally 30-40%, and most of the energy is the energy consumption of heating and air conditioning. The total energy consumption of the buildings in China accounts for 20.7% of the energy consumption of the social terminals, and the most direct factor influencing the energy consumption of the buildings is the heat insulation performance of the building envelope. In order to seek for the widening of the sight, the urban buildings are gradually vitrified, and the original high buildings made of steel and iron cement are covered by large-area windows, so that although the appearance of the buildings becomes beautiful and the visual field becomes wide, a large amount of energy is wasted. The window body is the most important component of a building and is the main part for indoor and outdoor energy communication, so that the interlayer heat insulation film treatment is carried out on the window body glass, the indoor and outdoor energy communication is reduced, the utilization rate of an air conditioner can be reduced, the energy is saved, the carbon dioxide emission is reduced, and the effects of energy conservation and emission reduction are achieved.

The method for preparing the transparent heat-insulating film by taking the heat-insulating particles as the functional material and laminating the heat-insulating particles on the glass is an economical and environment-friendly film forming method, has good heat-insulating effect and excellent visible light transmittance, and has low production cost and flexible application range, and the excellent properties of the transparent heat-insulating film have wide application prospect.

The tungsten bronze material has unique optical performance, and in 2007, Takeda et al report that various tungsten oxides and MxWO 3(M ═ K, Rb, Cs) tungsten bronze are prepared by a high-temperature solid-phase reaction method, study on the film transmission spectrum of the tungsten bronze material shows that various tungsten bronze films have strong near-infrared light absorption and visible light transmission performances, and first propose that the tungsten bronze films have near-infrared shielding performance. The cesium tungsten bronze particles are added into a PVB film as a functional material to prepare a transparent heat insulation film, and the film can achieve high visible light transmittance and near infrared shielding rate and has a good heat insulation effect.

Most of functional materials of the transparent heat-insulating coating in the market at present are Antimony Tin Oxide (ATO), Indium Tin Oxide (ITO), Zinc Aluminum Oxide (ZAO) and the like, but the functional materials are expensive and resources are hidden, so that the product price is higher. The cesium tungsten bronze material is discovered in recent years and is expected to replace thermal insulation materials such as ATO, ITO and the like. The preparation method of the cesium tungsten bronze material has a large number of methods, has a large influence on the near infrared performance of the cesium tungsten bronze material, finds out a simple preparation process and low-cost raw materials, and has important significance in realizing that the Cs0.33WO3 particles are applied to the production of PVB (polyvinyl butyral) membranes in a large quantity.

The project sets up research and development on a composite PVB intermediate film with heat insulation function, and the optical performance of the film is strengthened on the basis of keeping stable mechanical performance, so that the film becomes a new mark post of a heat insulation film in the domestic PVB industry. The traditional PVB film is safe and reliable when being used for preparing automobile and building glass, and the introduction of the heat-insulating material into the PVB film increases the functionality of the film, so that new hopes and growth points are undoubtedly brought to the traditional PVB industry, and the PVB film is expected to have better market prospects.

The research on the nano transparent heat insulation coating in China is late, and the coated glass is a term which is only available in recent years. In recent years, the development of transparent heat-insulating coatings has attracted more and more attention. The transparent heat-insulating coating is researched more by Zhao Shilin, Chen Fei Xia and the like of Nanjing industry university; the transparent heat-insulating paint with good performance is prepared by uniformly dispersing nano indium tin oxide in water to prepare nano Indium Tin Oxide (ITO) water slurry, adding a cosolvent and adjusting the pH value of the system by using an organic silicon resin film-forming agent. Test results show that the coating has good spectral selectivity, high transmittance in a visible light region and can effectively block heat radiation in an infrared light region. The Luxiasong and the like take nano Indium Tin Oxide (ITO) as a pigment filler and polyvinyl butyral (PVB) resin as a film-forming agent to prepare the nano heat-insulating transparent coating. And the coating is characterized by mechanical property, optical property and heat insulation effect. The result shows that the prepared nano transparent heat insulation coating has good heat insulation effect and visible light transmittance, and when the mass of the pigment base is 1: 8, the transmittance of the nano ITO transparent heat insulation coating in a visible light area (380-780 nm) reaches more than 80 percent; the infrared shielding rate in a near-infrared region (800-2500 nm) reaches 65.3 percent. The nano heat-insulating coating is prepared by nano Antimony Tin Oxide (ATO) and waterborne polyurethane through a certain process, and the nano heat-insulating coating is coated on the surface of glass at normal temperature, has a good heat-insulating effect through optical analysis, has a visible light transmittance of more than 63 percent, is smooth and flat on the surface of the glass, has good visibility, and has a good market prospect. The university of composite denier is provided with vanadium dioxide powder with normal temperature phase transition function by doping tungsten, and the like, and the tungsten-doped vanadium dioxide powder and Antimony Tin Oxide (ATO) powder are dispersed into sub-nanometer or nanometer slurry by adopting a special grinding process, and the slurry is directly added into the waterborne polyurethane coating, so that the transparent heat-insulating coating with certain intelligent function is obtained. The coating has good adhesion to glass, adjustable near-infrared transmittance, can be widely applied to building and automobile glass, and has good energy-saving effect. The Changsha Meifeng nanometer technology company Zhu-shu, Cheng-Wei, and the like invents a high-heat-insulation nanometer composite material and a preparation method of a heat-insulation product thereof. The preparation method is characterized in that high-heat-insulation nano Indium Tin Oxide (ITO) powder is prepared, the powder is blue or green in color, the powder is in an irregular strip shape when being observed under a scanning electron microscope, and the diameter of the strip shape is about 15-30 nm. The powder is uniformly dispersed in water or an organic solvent to form slurry, and then the slurry and a thermosetting polyurethane resin or a UV resin form a semitransparent coating. Polyurethane-acrylate (PUA) water-based resin is used as a base material, nano Indium Tin Oxide (ITO) slurry is used as a filler to prepare a water-based transparent heat-insulating glass coating, the water-based transparent heat-insulating glass coating is applied to laminated glass to prepare heat-insulating laminated glass, and the transmittance of the heat-insulating laminated glass in a visible light region (380-780 nm) is about 75%; the sun shading coefficient can reach 0.57, and the heat insulation temperature is above 15 ℃.

In 1995, Qinhuang Jiahua plastics Co., Ltd, Qinhuang island, introduced foreign equipment, and started to produce PVB intermediate film by using recycled materials. The PVB intermediate film industry is rapidly developed after 2005, and nearly forty PVB intermediate film enterprises appear, but the whole industry is low in technical level and unstable in product quality, and the development of the whole industry is restricted. Zhejiang Destai plastics limited, Jiantao (Buddha) special resin limited, Huzhou Xinfu new material limited and Anhui Wanwei group have established resin powder production devices of themselves in sequence after 2010, and the products are applied to the middle-high-end market.

At present, most of the glass with heat insulation capability produced domestically adopts imported functional PVB films, and the PVB intermediate film with the heat insulation capability can not be produced domestically, so that the use cost is high, and the glass can not be popularized in a large area.

Generally, the research of domestic heat-insulating functional coatings is still in the beginning stage, and the research work mainly focuses on the aspects of modification of film-forming materials, adjustment of coating formulas, selection of fillers and the like. The research on thermal infrared low emission type fillers is mainly to reduce the emissivity of the target surface. The low-radiation coating is coated on the inner surface of the substrate to reduce the radiation of heat to the interior of an object, and the comprehensive research and application in the aspect of heat insulation are less.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a thermal-insulated efficient, optical property is strong, mechanical properties is stable functional material.

The utility model provides a thermal-insulated compound functional type PVB intermediate coat, includes two-layer insulating layer, prevents ultraviolet layer, prevents infrared layer and tensile layer, the both sides on tensile layer are equipped with respectively prevent ultraviolet layer and prevent infrared layer, prevent ultraviolet layer with the outside on preventing infrared layer is equipped with respectively the insulating layer, the inside even thermal-insulated particle that is equipped with of insulating layer, prevent the inside even ultraviolet separation particle that is equipped with in ultraviolet layer, prevent the inside even infrared separation particle that is equipped with in infrared layer, the inside stretch-proofing particle that is equipped with of tensile layer, the inside thermal insulation material and the auxiliary agent that includes of insulating layer, the even and tight parcel of auxiliary agent is in thermal insulation material is outside.

Preferably, transparent glass is compounded on two sides of the PVB intermediate film in a high-pressure mode and bonded through a high-pressure compounding agent.

Preferably, the ultraviolet-proof layer, the infrared-proof layer and the tensile layer also contain a plasticizer and an antioxidant inside.

The utility model provides a main technical index and parameter

A. The visible light transmittance is more than or equal to 70 percent

B. The ultraviolet blocking rate is more than or equal to 99 percent

C. The infrared ray blocking rate is more than or equal to 90 percent

D. Haze is less than or equal to 1 percent

E. The color difference value is less than or equal to 3 percent

The utility model discloses the beneficial effect who brings is:

the utility model discloses in, explore suitable prescription and technology, strengthen the compatibility of thermal insulation material and PVB resin, screen suitable thermal insulation material and add the PVB intermediate coat system.

At present, only common PVB intermediate films can be produced domestically, and high-end functional products depend on import. It has not been possible to produce PVB interlayer films having thermal insulation properties. The PVB product has traditional security performance advantage in doubling glass's application, and if the PVB membrane of thermal-insulated function successfully promoted on building and car, indoor light transmissivity and the infrared transmittance in the car can be controlled, can improve the utilization ratio of the energy, reduce indoor air conditioner's power consumption, improve the comfortable degree of living in, reduce the temperature in the outdoor exposure rear truck simultaneously, improve user experience.

The heat insulation PVB film reduces the permeation of infrared rays which cause a human body to generate burning sensation by utilizing the reflection, absorption and permeation of the heat insulation materials to the infrared rays, so that the temperature is reduced. The infrared-blocking film has the characteristics of good light transmittance and high infrared-blocking rate, and has good market prospect.

The heat insulation glass has high light transmittance when used in a building, is indoor attractive, has good heat insulation effect, can prevent infrared heat above 90% from entering the room, and the window body is the most important component of the building and is the main part for indoor and outdoor energy communication.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a cross-sectional view of a PVB interlayer with thermal insulation and composite functions according to a preferred embodiment of the present invention.

The corresponding reference numbers for the component names in the figures are as follows:

1. a thermal insulation layer; 2. an ultraviolet-proof layer; 3. an infrared-proof layer; 4. a tensile layer; 5. heat insulating particles; 6. Ultraviolet blocking particles; 7. infrared blocking particles; 8. a stretch resistant particle; 9. and (4) transparent glass.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and embodiments:

as an embodiment of thermal-insulated compound functional type PVB intermediate film, as shown in fig. 1, including two-layer insulating layer 1, anti ultraviolet layer 2, anti infrared ray layer 3 and tensile layer 4, the both sides of tensile layer 4 are equipped with respectively anti ultraviolet layer 2 and anti infrared ray layer 3, anti ultraviolet layer 2 with the outside of preventing infrared ray layer 3 is equipped with respectively insulating layer 1, the inside even thermal-insulated particle 5 that is equipped with of insulating layer 1, the inside even ultraviolet separation particle 6 that is equipped with in anti ultraviolet layer 2, the inside even infrared separation particle 7 that is equipped with in anti infrared ray layer 3, the inside a plurality of anti tensile particles 8 that are equipped with of

tensile layer

4, 1 inside thermal-insulated material and the auxiliary agent that include of insulating layer, the even and tight parcel of auxiliary agent is in the thermal-insulated material is outside.

In this embodiment, transparent glass 9 is laminated on both sides of the thermal insulation composite functional PVB intermediate film under high pressure, and is bonded by a high-pressure laminating agent.

In this embodiment, the ultraviolet-proof layer 2, the infrared-proof layer 3, and the tensile layer 4 further include a plasticizer and an antioxidant therein.

Claims

1. The utility model provides a thermal-insulated compound functional type PVB intermediate coat, its characterized in that includes two-layer insulating layer, prevents ultraviolet layer, prevents infrared layer and tensile layer, the both sides on tensile layer are equipped with respectively prevent ultraviolet layer and prevent infrared layer, prevent ultraviolet layer with the outside on preventing infrared layer is equipped with respectively the insulating layer, the inside even thermal-insulated particle that is equipped with of insulating layer, prevent the inside even ultraviolet separation particle that is equipped with in ultraviolet layer, prevent the inside even infrared separation particle that is equipped with in infrared layer, the inside anti-stretching particle that is equipped with of tensile layer, the inside thermal-insulated material and the auxiliary agent that includes of insulating layer, the even and tight parcel of auxiliary agent is in thermal-insulated material is outside.

2. The PVB interlayer of claim 1, wherein the PVB interlayer is laminated with clear glass on both sides and bonded with a laminating agent.

3. The PVB interlayer of claim 2, wherein the uv resistant layer, the ir resistant layer, and the tensile layer are each filled with a plasticizer and an antioxidant.