CN105383123A - SGP laminated glass and preparation method thereof - Google Patents

Abstract

The invention belongs to the technical field of laminated glass, and particularly relates to SGP laminated glass and a preparation method thereof. The glass comprises an upper glass body, a lower glass body and an SGP adhesive layer clamped between the two glass bodies, wherein the SGP adhesive layer is formed by splicing at least two SGP substrates, and an SGP adhesive tape which is the same as the SGP substrates in material is also clamped at the splicing position of the two SGP substrates; and is prepared by vacuumizing and high-temperature pressing. The finally prepared laminated glass SGP splicing part has no defects of film butt joint traces, bubbles and the like, so that the production efficiency and the product quality are improved, and meanwhile, the continuous production of the SGP laminated glass production process is realized; and the subsequent production processes are mutually matched, so that the product quality meets the national standard requirement.

Description

A kind of SGP laminated glass and preparation method thereof

technical field

The invention belongs to the technical field of laminated glass, and in particular relates to a SGP laminated glass and a preparation method thereof.

Background technique

Laminated glass is composed of two or more pieces of glass with one or more layers of organic polymer intermediate film sandwiched between them. After special high-temperature pre-pressing and high-temperature and high-pressure processing, the glass and the intermediate film are permanently bonded together. Composite glass products. Commonly used laminated glass interlayers include PVB, SGP, EVA, PU, etc. Even if the glass in the laminated glass is broken, the fragments will be stuck to the film, and the broken glass surface remains clean and smooth. This is not only to avoid injury accidents, but also because laminated glass has excellent anti-seismic intrusion capabilities. The interlayer film can resist continuous attacks from weapons such as hammers and hatchets, and can also resist bullet penetration for a long time. The degree of safety protection can be described as extremely high.

Among them, SGP film is a laminated glass ionomer interlayer film with excellent performance, the tear strength is 5 times that of ordinary PVB film, and the hardness is 30-100 times that of PVB film. At low deformation rate, SGP laminated glass exhibits elastic-plastic properties while PVB is super-elastic-plastic, while at high deformation rate, PVB hardens and becomes elastic-plastic properties, and SGP has higher rigidity in the entire range. SGP laminated glass has almost the same bending strength as monolithic glass of the same thickness. Compared with other interlayer laminated glass, SGP laminated glass has higher strength and rigidity, which can effectively reduce the thickness of the glass, especially beneficial to point-supported glass. SGP laminated glass has broad and good application prospects in glass lighting roofs, glass exterior windows, and curtain walls. As a very reliable safety glass, SGP laminated glass is widely used in the construction field, especially in some important explosion-proof places. SGP laminated glass is produced by more than two pieces of glass and SGP film through a certain production process. Due to the SGP film The material is relatively hard, and the film can only produce plates of a certain specification, which cannot meet the needs of various laminated glass. This requires splicing according to the size of the glass, and ensuring that there are no butt marks and no bubbles at the butt joints, etc. defect. In the existing SGP laminated glass production process, when the size of the film cannot meet the needs of the order, the required film is cut according to the size of the glass plate, and the SGP film is spliced together with an electric soldering iron, and then according to the laminated glass production method For production and processing, the production process is discontinuous production, and the production efficiency is very low. SGP film needs a lot of time for splicing, and splicing marks can be seen at the splicing place and many small bubbles are easily generated at the splicing place, and the boiling test of the product cannot meet the international requirements. The reason for the above shortcomings is that due to the large glass plate, it takes a long time to weld all the joints of 2 or more SGP films together with an electric soldering iron; after the subsequent production and processing are completed, the splicing can be clearly seen traces; if the splicing work is not handled well, it is easy to produce small air bubbles at the splicing place, resulting in waste.

Contents of the invention

In order to solve the above problems, the object of the present invention is to provide a SGP laminated glass without defects such as butt marks and bubbles at the splicing.

The second object of the present invention is to provide the preparation method of the SGP laminated glass, which not only improves the production efficiency and product quality, but also enables the continuous production of the production process of the SGP laminated glass.

The present invention is achieved through the following technical solutions:

A kind of SGP laminated glass, comprising at least two pieces of glass and an SGP glue layer sandwiched between the two pieces of glass, the SGP glue layer is formed by splicing at least two SGP substrates, and the two SGP substrates are spliced There is also an SGP adhesive strip made of the same material as the SGP substrate. The SGP substrates cannot be fused together, and the gap itself is lack of glue, and only a piece of SGP can be pasted to fill the splicing place.

Preferably, the length of the SGP adhesive strip is the same as the width of the SGP substrate.

Preferably, the thickness of the SGP strip is 0.89mm.

Preferably, the width of the SGP strip is 6-10mm.

Preferably, the thickness of the two SGP substrates is 1.52-3.04mm. The size of the SGP adhesive strip is critical, neither too much nor too little, too much will still have obvious seam marks in the end, which will affect the appearance; too little will not fill the gaps, and air bubbles will be generated, it is best to just fill the capacity of the seam enough.

The preparation method of described SGP laminated glass is specifically:

A. Select a certain specification of SGP substrate according to the length and specification of the glass;

B. According to the SGP substrate, cut the SGP adhesive tape of the corresponding size, and lay the SGP substrate on the first piece of glass;

C. Lap one of the SGP glue strips on the upper part of the seams of each SGP substrate; the SGP glue is lapped on the upper part of the seams of two SGP substrates.

D. After all the joints are overlapped with SGP adhesive strips, the second piece of glass is combined with the first piece;

If it is laminated glass, this can repeat the above steps.

E. Put the laminated glass into a vacuum bag for vacuum treatment;

F. Finally, carry out pressing treatment to obtain the SGP laminated glass.

Preferably, in the step E, the degree of vacuum is above -0.6MP to -1.0MP. Vacuuming allows air to escape from the seams and prevents the formation of air bubbles.

Preferably, in the step F, the pressing pressure is 12-14MP, and the temperature is 135-145°C.

The present invention comprises two pieces of glass above and below and an SGP glue layer sandwiched between the two pieces of glass. The SGP glue layer is formed by splicing at least two SGP substrates, and the joint of the two SGP substrates is also sandwiched with a A SGP adhesive strip made of the same material as the SGP substrate; and made by vacuumizing and high-temperature pressing. It mainly uses the film in the autoclave under the state of high pressure and high temperature, the film has the characteristics of fluidity, and a lapped film melts under high temperature and high pressure and fills the gap at the joint of the film, so as to achieve product requirement. Make the final SGP laminated glass splicing without defects such as film butt marks and bubbles. This method not only improves the production efficiency and product quality, but also makes the production process of SGP laminated glass realize continuous production; and the mutual cooperation of subsequent production processes makes the product quality meet the national standard requirements.

Description of drawings

Fig. 1 is a schematic structural view of embodiment 1 before lamination in the present invention,

The structural representation of embodiment 1 among the Fig. 2 present invention,

The structural representation of embodiment 2 in Fig. 3 the present invention,

Fig. 4 is a schematic structural diagram of Embodiment 3 of the present invention.

specific implementation

The present invention will be further described in detail below in combination with specific embodiments, so as to help those skilled in the art understand the present invention.

Example 1

See Fig. 1, Fig. 2, a kind of SGP laminated glass, comprise upper and lower two pieces of glass (12,11) and the SGP adhesive layer that is arranged between two pieces of glass, SGP adhesive layer is made of two SGP substrates (21, 22) spliced together, where two SGP substrates (21, 22) are spliced, and an SGP adhesive strip 31 with the same material as the SGP substrate is sandwiched. The length of the SGP adhesive strip 31 is the same as the width of the SGP substrate, the thickness of the SGP adhesive strip is 0.89mm, and the width of the SGP adhesive strip is 6mm. The thickness of the two SGP substrates is 1.52 mm.

The preparation method of the SGP laminated glass is specifically:

A. Select a certain specification of SGP substrate according to the length and specification of the glass;

B. according to SGP substrate cutting the SGP glue strip of corresponding size, lay SGP substrate (21,22) on the first piece of glass 11;

C. Lap a described SGP glue strip 31 on the top of the SGP substrate (21, 22) seam; in order to represent the gap between two SGP substrates (21, 22), so two pieces are shown in the figure There is a certain distance between the SGP substrates (21, 22), and actually the two SGP substrates (21, 22) are next to each other.

D. Combine the second piece of glass 12 with the first piece of glass 11; put the combined glass into a vacuum bag for vacuum treatment; the degree of vacuum is above -0.6MP～-1.0MP.

E. Finally, perform pressing treatment (pressure 12-14MP, temperature 135-145° C.) to obtain the SGP laminated glass.

Example 2

See Fig. 3, a kind of SGP laminated glass, comprise upper and lower two pieces of glass (11,12) and the SGP glue layer that is sandwiched between two pieces of glass, SGP glue layer is made of a plurality of SGP substrates (21,22,23 ) are spliced together, and an SGP adhesive strip (31, 31, 32, 33) of the same material as the SGP substrate is sandwiched between the two SGP substrates. The length of the SGP adhesive strip is the same as the width of the SGP substrate, the thickness of the SGP adhesive strip is 0.89mm, and the width of the SGP adhesive strip is 10mm. The thickness of the two SGP substrates is 3.04mm. The preparation method of the described SGP laminated glass is the same as the specific implementation 1.

Example 3

See Fig. 4, a kind of SGP laminated glass, comprise upper and lower three pieces of glass (11,12,13) and the first SGP adhesive layer and the second SGP adhesive layer sandwiched between the three glasses, the first SGP adhesive layer It is formed by splicing two SGP substrates (21, 22), of course, it can also be spliced by multiple SGP substrates according to the size of the glass. An SGP adhesive strip 31 made of the same material as the SGP substrates is sandwiched between the joints of the two SGP substrates (21, 22). The second SGP adhesive layer is formed by splicing two SGP substrates (23, 24), and of course it can also be spliced by multiple SGP substrates according to the size of the glass. An SGP adhesive strip 32 made of the same material as the SGP substrates is sandwiched between the joints of the two SGP substrates (23, 24). The length, width and thickness of the SGP strips depend on the thickness of the SGP substrate.

The preparation method of described SGP laminated glass is specifically:

A. Select a certain specification of SGP substrate according to the length and specification of the glass;

B. according to the SGP base sheet cutting the SGP glue strip of corresponding size, lay two SGP base sheets (21,22) of the first layer on the first glass 11;

C. Lap an SGP glue strip 31 on the upper part of the seam of the two SGP substrates (21, 22) of the first layer; SGP glue is lapped on the upper part of the seam of the two SGP substrates.

D. After all the seams are overlapped with SGP adhesive strips, the second piece of glass 12 is pressed on the first layer of SGP film;

E. lay two SGP substrates (23,24) of the second layer on the second sheet of glass 12;

F. Lap an SGP glue strip 32 on the upper part of the joint of the two SGP substrates (23, 24) on the second layer; SGP glue is lapped on the upper part of the joint of the two SGP substrates.

G. After all the seams are overlapped with the SGP adhesive tape, press the third piece of glass 13 on the second layer of SGP film; if it is multi-layer laminated glass, repeat the above steps.

H. Put the laminated glass into a vacuum bag for vacuum treatment; the vacuum degree is above -0.6MP～-1.0MP.

I. Finally, carry out pressing treatment (pressure 12～14MP, temperature 135～145 ℃), make described SGP laminated glass.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Therefore, all equivalent changes or modifications made with the features and principles described in the claims of the present invention should be included in the present invention. within the scope of the claims.

Claims (8)

1. A SGP laminated glass, comprising at least two pieces of glass and an SGP adhesive layer sandwiched between two pieces of glass, characterized in that, said SGP adhesive layer is spliced by at least two SGP substrates, said There is also an SGP adhesive strip with the same material as the SGP substrate at the joint of the two SGP substrates. 2. The SGP laminated glass according to claim 1, wherein the length of the SGP adhesive strip is the same as the width of the SGP substrate. 3. The SGP laminated glass according to claim 2, wherein the thickness of the SGP strip is 0.89mm. 4. The SGP laminated glass according to claim 3, characterized in that, the width of the SGP strip is 6-10mm. 5. The SGP laminated glass according to any one of claims 1-4, wherein the thickness of the two SGP substrates is 1.52-3.04 mm. 6. The preparation method of the SGP laminated glass described in any one of claims 1-5, characterized in that, specifically: A. Select a certain specification of SGP substrate according to the length and specification of the glass; B. According to the SGP substrate, cut the SGP adhesive tape of the corresponding size, and lay the SGP substrate on the first piece of glass; C. Lap one of the SGP adhesive strips on the top of each SGP substrate seam; D. After all the seams are overlapped with SGP adhesive strips, the second piece of glass is combined with the first piece of glass; E. Put the combined glass into a vacuum for vacuum treatment; F. Finally, carry out pressing treatment to obtain the SGP laminated glass. 7. The method for preparing SGP laminated glass according to claim 6, characterized in that, in the step E, the degree of vacuum is above -0.6MP to -1.0MP. 8. The method for preparing SGP laminated glass according to claim 6, characterized in that, in the step F, the pressing pressure is 12-14MP, and the temperature is 135-145°C.