Sound insulating PVB (polyvinyl butyral) laminated glass and preparation method thereof

A technology of laminated glass and glass substrate, applied in chemical instruments and methods, glass/slag layered products, lamination, etc., can solve the problems affecting the service life of PVB soundproof glass, different thermal expansion coefficients, and film mechanical properties. , to achieve the effect of good mechanical properties, less internal voids, and improved mechanical properties

Active Publication Date: 2016-10-12
HUZHOU XINFU NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, improving the PVB resin structure, increasing the acetyl group content, reducing the hydroxyl content, or increasing the plasticizer ratio to adjust the mechanical loss factor of different PVB layers will have the following risks: the mechanical properties of the film will decrease, the aging performance will decrease, and the plasticizer Precipitation, etc.
[0003] Nowadays, PVB sound-insulating laminated glass is commonly used. The PVB film is directly placed between two glass substrates. The thermal expansion coefficient of the PVB film and the glass substrate is different. When the external environment temperature changes sharply, the shrinkage of the PVB film and the glass substrate is inconsistent. , There is a gap between the PVB film and the glass substrate, and even the PVB film will wrinkle, which will affect the service life of the PVB soundproof glass

Method used

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  • Sound insulating PVB (polyvinyl butyral) laminated glass and preparation method thereof
  • Sound insulating PVB (polyvinyl butyral) laminated glass and preparation method thereof
  • Sound insulating PVB (polyvinyl butyral) laminated glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] like figure 1 , 2 Schematic diagram of the structure of PVB glass and PVB film shown. A PVB sound-insulating laminated glass, including a first glass substrate 1 and a second glass substrate 2 arranged up and down, a PVB film 3 between the first glass substrate and the second glass substrate, and a The polystyrene film 4 between the substrate and the PVB film, the second glass substrate and the PVB film. The PVB film is composed of three layers of PVB films. The middle layer of PVB film is a cross-linkable PVB film 31 made of cross-linkable PVB resin. The outer layers on both sides are PVB films made of polyvinyl butyral resin. Layer cross-linkable PVB resin structure is:

[0047]

[0048] The preparation method of the above-mentioned PVB sound-insulating laminated glass is as follows:

[0049](1) Cleaning of the glass substrate: clean the oil stains, dust and other impurities on the surface of the selected glass substrate, and dry it for later use;

[0050] (2)...

Embodiment 2

[0061] A PVB sound-insulating laminated glass, including a first glass substrate 1 and a second glass substrate 2 arranged up and down, a PVB film 3 between the first glass substrate and the second glass substrate, and a The polystyrene film 4 between the substrate and the PVB film, the second glass substrate and the PVB film. The PVB film is composed of three layers of PVB films. The middle layer of PVB film is a cross-linkable PVB film 31 made of cross-linkable PVB resin. The outer layers on both sides are PVB films made of polyvinyl butyral resin. Layer cross-linkable PVB resin structure is:

[0062]

[0063] The preparation method of the above-mentioned PVB sound-insulating laminated glass is as follows: the same as in Example 1, the difference lies in the preparation of the polystyrene film in step (2): the weight ratio is:

[0064] 95 parts polystyrene

[0065] Antioxidant 0.5 parts

[0066] 38 parts of SEBS block copolymer

[0067] EBS 0.6 copies

[0068] Modifi...

Embodiment 3

[0071] A PVB sound-insulating laminated glass, including a first glass substrate 1 and a second glass substrate 2 arranged up and down, a PVB film 3 between the first glass substrate and the second glass substrate, and a The polystyrene film 4 between the substrate and the PVB film, the second glass substrate and the PVB film. The PVB film is composed of three layers of PVB films. The middle layer of PVB film is a cross-linkable PVB film 31 made of cross-linkable PVB resin. The outer layers on both sides are PVB films made of polyvinyl butyral resin. Layer cross-linkable PVB resin structure is:

[0072]

[0073] The preparation method of the above-mentioned PVB sound-insulating laminated glass is as follows: the same as in Example 1, the difference lies in the preparation of the polystyrene film in step (2): the weight ratio is:

[0074] Polystyrene 100 parts

[0075] Antioxidant 0.6 parts

[0076] SEBS block copolymer 40 parts

[0077] EBS 0.8 copies

[0078] Modified...

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PUM

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Abstract

The invention relates to sound insulating glass and a preparation method thereof, in particular to sound insulating PVB (polyvinyl butyral) laminated glass and a preparation method thereof. The sound insulating PVB laminated glass comprises a first glass substrate, a second glass substrate, a PVB film between the first glass substrate and the second glass substrate as well as polystyrene films located between the first glass substrate and the PVB film as well as between the second glass substrate and the PVB film, wherein the first glass substrate and the second glass substrate are arranged vertically. The preparation method of the sound insulating PVB laminated glass comprises the following steps: (1) cleaning of the glass substrate; (2) preparation of the polystyrene films; (3) combining operation: the PVB film is arranged in a combining chamber for combination of the glass substrates, the PVB film and the polystyrene films; (4) prepressing for exhausting; (5) high-pressure molding. The prepared PVB laminated glass has good mechanical property, impact resistance and good sound insulating effect, the PVB film cannot fall off the glass when the laminated glass meets external impact or the external environmental temperature changes acutely, and the service life is long.

Description

technical field [0001] The invention relates to a sound-insulating glass and a preparation method thereof, in particular to a PVB sound-insulation laminated glass and a preparation method thereof. Background technique [0002] Polyvinyl butyral (PVB) film is used as the interlayer of laminated glass to prevent the glass from splashing and peeling off when the glass is broken. PVB laminated glass has high safety performance and has been widely used in the fields of construction and automobiles. In response to this need, US Pat. No. 5,340,654 proposes a multilayer system in which one layer contains PVB with a vinyl acetate content of 8%-30% and the second layer contains PVB with a vinyl acetate content of less than 4%. It also pointed out that PVB with a vinyl acetate content of less than 8% is not suitable for sound insulation. Chinese patent CN200910159694.2 discloses a PVB multilayer film composed of at least two sub-films with sound insulation properties, wherein the fir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B17/10B32B27/30B32B37/10B32B37/06C09J129/14C08L25/06C08L53/02C08K9/06C08K3/36C08K5/20
CPCB32B17/1055B32B27/30B32B37/06B32B37/10B32B2307/102C08L25/06C08L2203/16C09J129/14C08L53/025C08K9/06C08K3/36C08K5/20
Inventor 莫国军钱燚堋何海肖徐寅盛雪强徐加广
Owner HUZHOU XINFU NEW MATERIALS CO LTD
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