A kind of preparation method of intelligent thermal and sound insulation PVB film and the preparation method of PVB film laminated glass

A technology of intelligent heat insulation and laminated glass, applied in parallel glass structures, chemical instruments and methods, flat products, etc., can solve the problems of insignificant effect and no guarantee of safety, etc., to improve the sound insulation effect, significantly economic and social effect of benefit

Active Publication Date: 2018-06-22
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this kind of insulating glass has a certain purpose of heat insulation and sound insulation, the effect is not obvious.
Since there is no PVB film, the safety is not guaranteed

Method used

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  • A kind of preparation method of intelligent thermal and sound insulation PVB film and the preparation method of PVB film laminated glass
  • A kind of preparation method of intelligent thermal and sound insulation PVB film and the preparation method of PVB film laminated glass

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preparation example Construction

[0028] A preparation method of an intelligent heat-insulating and sound-insulating PVB film, comprising the steps of:

[0029] (1) Preparation of the second sound insulation layer: adding vanadium dioxide nanopowder into alcohol to dissolve to form VO 2 solution, the VO 2 The solution is blended with the resin powder, or the vanadium dioxide nano-powder is directly blended with the resin powder to obtain VO with a mass percentage of 0.1-5%. 2 The resin masterbatch of the powder is the masterbatch of the second sound insulation layer, and the second sound insulation masterbatch is obtained by co-extrusion at 200 °C containing VO 2 The PVB diaphragm is processed into a second sound insulation layer containing a three-dimensional channel structure functional layer;

[0030] (2) Preparation of intelligent heat and sound insulation PVB film: blend the second sound insulation layer prepared in step (1) with PVB resin powder and co-extrude at 200°C or 130°C to obtain the intelligen...

Embodiment 1

[0033] Take VO with a particle size of 10nm 2 The powder is added to ethanol to form a solution, then added to the PVB resin powder and blended by stirring to obtain a solution containing VO 2 0.1% PVB resin masterbatch of powder, ethanol volatilizes during the stirring process, and VO 2 The PVB diaphragm is obtained by 3D printing with a connected circular hole with a diameter of 0.5mm 2 PVB diaphragm with a porosity of 0.5%, through 200-degree co-extrusion, the first layer thickness is 10um, the second layer thickness is 300um, the third layer is 80um, and the total thickness is 0.38mm. Heat and sound insulation PVB diaphragm, The target laminated glass is obtained by thermoforming with ordinary glass.

Embodiment 2

[0035] Take VO with a particle size of 20nm 2 Powder, added to PVB resin powder by stirring and blending to obtain 21% PVB resin masterbatch of powder, obtained by co-extrusion technology containing VO 2 The PVB diaphragm is obtained by 3D printing with connected circular holes with a diameter of 0.1mm containing VO 2 PVB diaphragm with a porosity of 3%, through 200-degree co-extrusion, the first layer thickness is 10um, the second layer thickness is 350um, and the third layer is 20um. The total thickness of the heat and sound insulation PVB film is 0.38mm, and Ordinary glass is hot-pressed to obtain the target laminated glass.

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Abstract

The invention discloses a preparation method for intelligent PVB laminated glass. The intelligent PVB laminated glass comprises a first PVB layer, a second sound-insulation layer and a third PVB layer which are successively connected. The preparation method comprises the following steps: (1) adding nanometer vanadium dioxide powder into alcohol for dissolving so as to obtain a VO2 solution, blending the VO2 solution with resin powder so as to obtain a master batch for the second sound-insulation layer and processing the master batch for the second sound-insulation layer so as to obtain the second sound-insulation layer containing a three-dimensional channel structure function layer; and (2) blending the second sound-insulation layer and PVB resin powder and carrying out co-extrusion or roll forming so as to obtain an intelligent heat-insulation sound-insulation PVB film. According to the invention, automatic temperature control and heat insulation are realized by using different light transmission and reflection properties of VO2 at different temperatures; sound insulation effect is realized via a three-dimensional channel structure and asymmetric damping; the sound insulation effect and the heat insulation effect are integrated on the PVB film so as to form the novel PVB sandwich film with heat insulation and sound insulation functions; so the functionality of the PVB film is improved, and security of the laminated glass is guaranteed.

Description

Technical field: [0001] The invention relates to the field of energy saving and noise reduction for buildings and vehicles, in particular to a method for preparing an intelligent heat-insulating and sound-insulating PVB film and a method for preparing PVB-film laminated glass. Background technique: [0002] Doors and windows are the products of human beings to improve the comfort of the environment. With the tense energy situation and the further improvement of human comfort, the energy saving and noise isolation of doors and windows are also increasingly on the agenda. As we all know, in buildings, the heat lost through doors and windows accounts for more than 50% of the heat load of the entire building. With the continuous improvement of people's visual requirements and comfort, the area of ​​doors and windows is getting larger, and the energy lost through doors and windows is even more important. underestimate. Sound is a kind of vibration wave. The frequency that the hu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/20B32B27/28B29C47/02E06B3/67B29L7/00
CPCB29C48/08B29C48/15B29L2007/00B32B27/20B32B27/28B32B2307/102B32B2307/304E06B3/67
Inventor 徐刚肖秀娣詹勇军程浩亮
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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