JPH11107641A - Glass panel structure and construction method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a glass panel structure simply even by anyone without requiring technical skill and expert skill in the construction work, and to shorten the term of work. SOLUTION: Reactive adhesive silicone rubbers 5, 5' are interposed into opening sections among a glass plate 2 and a sash frame 1 and the glass plate 2 and a bead 4. In the construction method, the previously shaped uncured reactive adhesive silicone rubber 5 is stuck onto the inner circumferential surface of the sash frame 1, the glass plate 2 is contact-bonded to the reaction adhesive silicone rubber 5, and the bead 4 is contact-bonded to the glass plate 2 through the reactive adhesive silicone rubber 5', and the bead 4 is fixed onto the sash frame 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass panel structure integrally formed by attaching a glass plate to a sash frame and a method of constructing the same.

[0002]

2. Description of the Related Art Conventionally, a glass plate is attached to a sash frame by a sealing material driving method. In order to attach the glass plate to the sash frame by this method, as shown in FIG. 4, a fixing piece 13 is set in advance in the sash frame 11, and the glass plate 12 is fixed thereon, Attach the frame called. As a method of attaching the pressing edge 14, a screwing method (FIG. 4A)
) And the hooking method (see (b)). Subsequently, a sealing operation is performed on the gap portions on both sides of the glass plate 12, and the conventional sealing material is liquid and has fluidity. Therefore, in order to prevent the liquid sealing material from flowing and obtaining good adhesion to the glass plate or from flowing out, the following complicated work is required. That is, first, a plastic sealing material (backup material) 15 having a circular cross section is provided in a gap portion on both sides of the glass plate 12 so that the sealing material 16 does not flow to the lower surface. Use a masking tape on the glass plate 1 to prevent contamination.
2. Affix to required portions of the pressing edge 14 and the sash frame 11 (not shown). The sealing material 16 is loaded into the gap using a sealing gun or the like. As the sealant 16, a silicone sealant, a modified silicone sealant, or a polysulfide sealant is generally used. As a finish, the sealing material 16 is leveled using a spatula or the like. After curing for 2-3 weeks, remove the masking tape and clean the surrounding area.

[0003]

In the above-mentioned construction method, a plastic sealing material (backup material) 15 is used, but the plastic sealing material (backup material) 15 is properly set at a predetermined depth (predetermined position). Skill required, and time and steps for setting were required.
Even if the sealing material 16 can be set, the position of the plastic sealing material (backup material) 15 tends to shift during the sealing operation. As a result, the contact area between the sealing material 16 and the glass plate 12 and the adhesive strength are varied, and the adhesive strength is uneven. When local stress is applied to the glass plate 12, the glass may be broken. Further, since skills and skills are required to load the sealing material 16, the number of workers is limited, and as a result, the operation cost is increased. Furthermore, since a long period (usually two to three weeks) is required until the sealing material 16 is cured, there is a problem that the construction period cannot be shortened.

The present invention solves the above-mentioned conventional problems, and does not require a plastic sealing material (backup material), does not require any skill or skill in the construction work, and can be easily constructed by anyone. Another object of the present invention is to provide a glass panel structure capable of shortening the construction period because the curing time (curing) of the sealing material is as short as two to three days, and an object of the present invention is to provide a method of constructing the glass panel structure.

[0005]

Means for Solving the Problems As a result of intensive studies, the present inventors have found that the above problems can be solved by using a reactive adhesive silicone rubber as a sealing material, and have completed the present invention. . That is, in the glass panel structure of the present invention, in a glass panel structure in which a glass plate is attached to a sash frame, a reactive adhesive silicone rubber is provided in a gap between the glass plate and the sash frame and the gap between the glass plate and the pressing edge. Is interposed. Further, the method for constructing the glass panel structure of the present invention,
After pasting the uncured reactive adhesive silicone rubber whose cross section has been previously shaped into a rectangular shape on the inner peripheral surface of the sash frame, the glass plate is pressed against the reactive adhesive silicone rubber, and then the pressing edge is reactively bonded. Pressure-bonded to a glass plate via a functional silicone rubber,
The pressing edge is fixed to the sash frame.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a partially enlarged cross-sectional explanatory view illustrating a glass panel structure of the present invention, wherein 1 is a sash frame, 2 is a glass plate, 3 is a fixing piece, 4 is a pressing edge, 5,
5 'is a reactive adhesive silicone rubber, and 6 is a screw. A feature of the glass panel structure of the present invention is that reactive adhesive silicone rubbers 5, 5 'are interposed in the gaps between the glass plate 2 and the sash frame 1 and between the glass plate 2 and the pressing edge 4, respectively. It is in. By using this reactive adhesive silicone rubber, it is possible to shape the sealing material in a rectangular cross section in advance and to keep it uncured, and it is also possible to use a plastic material required for a conventional glass panel structure. No sealing material is required.

The uncured plasticity of the reactive adhesive silicone rubbers 5, 5 'is desirably 150 to 500, usually about 300. By setting the degree of plasticity in this range, it is possible to adhere to the adherend only by lightly pressing it, and the release film described later can be easily peeled off. Here, the reactive adhesive silicone rubbers 5, 5 'refer to addition reaction-curable or condensation-curable silicone rubbers described below.

The addition reaction-curable silicone rubber has an average unit formula of R _a SiO _{(4-a) / 2} (a is 1.90 to 2.05)
As a main component. In the above formula, R is bonded to an alkyl group such as a methyl group, an ethyl group, a propyl group or a butyl group, an alkenyl group such as a vinyl group or an allyl group, an aryl group such as a phenyl group or a tolyl group, or a carbon atom of these groups. Same or different unsubstituted or substituted monovalent carbon atoms such as chloromethyl group, 3,3,3-trifluoropropyl group, cyanomethyl group, etc., in which part or all of the hydrogen atoms substituted are substituted with halogen atoms, cyano groups, etc. A hydrogen group, especially 80% of R is a methyl group,
0.1 to 0.5% is a vinyl group and has a viscosity at 25 ° C of 100 cS or more, particularly preferably 1,000 cS or more. In addition, the terminal of the organopolysiloxane is preferably blocked with a silanol group, a methyl group, or a vinyl group, particularly preferably blocked with a vinyl group.

The addition reaction-curable silicone rubber is generally obtained by blending a silica-based filler with the above-mentioned organopolysiloxane. Examples of the silica-based filler include fumed silica, precipitated silica, quartz powder, and diatomaceous earth. The particle diameter of these particles is preferably 50 μm or less, and the amount of these particles is
It is preferred that the amount be in the range of 20 to 200 parts by weight based on parts by weight. In addition, a silane or a low-molecular siloxane containing an alkoxy group, a silanol group, or the like as a silica dispersant, or an inorganic pigment for coloring may be added to the organopolysiloxane.

[0010] The addition-curable silicone rubber can be cured by heating by radical crosslinking in the presence of an organic peroxide. Examples of the organic peroxide include benzoyl peroxide, 2,4-dichlorobenzoyl peroxide, orthochlorobenzoyl peroxide, di-t-butyl peroxide, dicumyl peroxide, and 2,5-bis (t-butyl peroxide). Oxide) -2,
5-dimethylhexane and the like. Further, an organohydrogenpolysiloxane having at least two hydrogen atoms bonded to a silicon atom in a molecule and a platinum catalyst (chloroplatinic acid, chloroplatinic acid and alcohol, ether,
Complex salts with aldehydes, olefins, and vinyl siloxanes) may be added in the range of 1 to 100 ppm based on the organopolysiloxane. The amount of the organohydrogenpolysiloxane added is ΔS based on the amount of vinyl groups in the organopolysiloxane.
The range may be such that iH / ≡Si (CH ＝ CH ₂ ) = 0.5 to 5.0 (molar ratio).

On the other hand, a condensation-curable silicone rubber has a hydroxyl group as a reactive functional group at both molecular chain terminals, and has an average unit formula of R _a SiO _{(4-a) / 2} (a is 1.90 to _2). .05)
And those cured by condensation with dehydrating groups or deoximes. In the above formula, R is a methyl group, an ethyl group,
An alkyl group such as a propyl group, a cycloalkyl group such as a cyclohexyl group, an aryl group such as a phenyl group and a tolyl group, an alkenyl group such as a vinyl group and an allyl group, or a part or all of the hydrogen atoms bonded to these carbon atoms. The same or different monovalent hydrocarbon groups selected from those substituted with a halogen atom, an amino group, an epoxy group, a carboxyl group, a cyano group, etc., and particularly preferably, 80% or more of R is a methyl group. . The average degree of polymerization of the organopolysiloxane is 3,000 or more, preferably 5,000 to 10,000. By increasing the average degree of polymerization of the organopolysiloxane to 3,000 or more, it is possible to reduce the amount of the filler added for shaping the reactive adhesive silicone rubber into a rectangular shape, and A cured product without impairing rubber elasticity can be obtained. In addition, the amount of the remaining low molecular weight organopolysiloxane is reduced, so that the uncrosslinked material is less likely to bleed out before curing, thereby preventing contamination of the adherend and the like.

A crosslinking agent is blended so that the organopolysiloxane is condensation-cured. Examples of the crosslinking agent include organosilanes having 3 to 4 alkoxy groups bonded to a silicon atom in one molecule, a mixture thereof, or a siloxane oligomer having an alkoxy group (a dehydration acid type), or a silicon atom bonded to a silicon atom. An organosilane having three or more ketoxime groups in one molecule or a mixture thereof (deoxime type) is used. Specifically, the dehydration group type is tetraethoxysilane, tetra n-propoxysilane, methyltrimethoxysilane, methyltriethoxysilane, vinyltrimethoxysilane, phenyltrimethoxysilane, phenyltriethoxysilane, 3,
3,3-trifluoropropyltriethoxysilane,
Examples thereof include 3,4-epoxybutyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, 3- (methacryloxypropyl) trimethoxysilane, and ethyl polysilicate. Particularly, methyltrimethoxysilane and methyltrimethoxysilane are exemplified. Ethoxysilane, phenyltrimethoxysilane, and phenyltriethoxysilane are preferred. The deoxime type is tetrakis (methylethylketoxime) silane, methyltris (methylethylketoxime) silane, methyltris (acetone oxime) silane, vinyltris (methylethylketoxime) silane, phenyl (methylethylketoxime) silane, methyltris (diethylketoxime) silane,
Methyl tris (methyl propyl ketoxime) silane and the like can be mentioned, and from the viewpoint of appropriate crosslinking rate, methyl tris (methyl ethyl ketoxime) silane, vinyl tris (methyl ethyl ketoxime) silane, and phenyl (methyl ethyl ketoxime) silane are preferable.

The compounding amount of the crosslinking agent is 100 to 600 equivalents to the hydroxyl group of the organopolysiloxane.
0 to 500 equivalents are preferred. When the amount is less than 100 equivalents, the moisture-proof storage property is reduced, and when the amount exceeds 600 equivalents, the original curing reaction is inhibited, and conversely, the curing becomes difficult.

Further, in order to appropriately adjust the curing rate of the organopolysiloxane by condensation crosslinking, a titanium catalyst and a tin catalyst are blended. By using both catalysts in this manner, the curing rate of the deep part of the organopolysiloxane can be increased. Considering the curing rate and curing stability, titanium (Ti) ₄
(R is ethyl, propyl, butyl, amyl, hexyl)
Is exemplified. In addition, in consideration of the curing rate, examples of the tin-based catalyst include organic acid salts such as tin octoate and tin octenoate, and alkyltin compounds such as dibutyltin acetate, dibutyltin dilaurate, and dibutyltin oleate. The amount of the titanium-based catalyst is 0.1 to 1. 1 part by weight based on 100 parts by weight of the organopolysiloxane.
0 parts by weight. If the amount is less than 0.1 part by weight, the curing is incomplete and the moisture-proof storage stability is reduced. The amount of the tin-based catalyst is 0.01 to 0.1 part by weight based on 100 parts by weight of the organopolysiloxane. If the amount is less than 0.01 part by weight, the curing is incomplete, and if it exceeds 0.1 part by weight, the moisture-proof storage stability is reduced.

Further, a filler is added to the condensation-curable silicone rubber in order to impart strength, shapeability and the like. Calcium carbonate, titanium oxide and the like can also be used, but silica-based fillers are preferred from the viewpoint of heat resistance and reinforcing effect. Examples of the silica-based filler include fumed silica, wet silica, hydrophobic silica, quartz powder, and diatomaceous earth, and fumed silica is particularly preferred. These silica-based fillers may be previously subjected to a surface treatment with chlorosilane, silazane, or the like in order to improve dispersibility. The particle size of the silica-based filler is preferably 50 μm or less. If it is larger than 50 μm, the reinforcing effect decreases. The compounding amount of the filler is 5 to 50 parts by weight, preferably 15 to 35 parts by weight based on 100 parts by weight of the organopolysiloxane. If the amount is less than 5 parts by weight, sufficient strength and shapeability cannot be obtained, and if it exceeds 50 parts by weight, the organopolysiloxane composition becomes hard and workability deteriorates.

Further, a wetting agent is blended to enhance the dispersibility of the filler and obtain a stable strength. Examples of the wetting agent include dimethylsilicone oil, diphenylsilanediol, and hexamethyldisilazane having a hydroxyl group at a terminal and having a low polymerization degree of about 5 to 20. The compounding amount is 0.5 to 10 parts by weight based on 100 parts by weight of the organopolysiloxane. When the amount is less than 0.5 part by weight, the effect of improving dispersibility cannot be obtained. When the amount exceeds 10 parts by weight, the strength is reduced.

The condensation-curable silicone rubber may optionally contain, in addition to the above components, an adhesion aid, a non-reinforcing filler, an inorganic pigment, an ultraviolet absorber, a fungicide, and the like. Adhesion aids, for example, γ-aminopropyltriethoxysilane,
Vinyltrichlorosilane, vinyltriethoxysilane,
Silane coupling agents such as γ-glycidoxypropyltrimethoxysilane and titanate couplings such as isopropylisostearoyl titanate, isopropyltri (N-aminoethyl-aminoethyl) titanate and tetraoctylbis [(ditridecyl) phosphite] titanate And the amount thereof is preferably 2.0 parts by weight or less based on 100 parts by weight of the organopolysiloxane.

As the reactive adhesive silicone rubber, any of the above-mentioned addition-reaction-curable or condensation-curable silicone rubbers may be used, but a condensation-curable silicone rubber (particularly a deoxime type) is used.
In the case where an addition reaction curing type is used, it is more preferable to cure with an organohydrogenpolysiloxane having at least two hydrogen atoms bonded to silicon atoms in the molecule and a platinum-based catalyst. For reference, Table 1 shows the physical properties of the addition-curable silicone rubber and the condensation-curable silicone rubber after reaction curing.

[0019]

[Table 1]

The reactive adhesive silicone rubbers 5, 5 'are usually compounded and kneaded using, for example, a two-roll, pressure kneader or Banbury mixer, and then mixed with an extruder. From a die hole such as a square, a trapezoid, or a flat shape, the release film 7 is formed into a rectangular cross section,
7 '(see FIG. 2). Generally, the thickness is about 2 to 15 mm and the width is about 20 mm at the maximum. The produced reactive adhesive silicone rubber is wound on a plastic reel by a winder, and is used by being appropriately fed out. The release films 7, 7 'are made of OPP, PP,
PET, PE, or the like is used as a raw material, and the thickness may be about 10 to 100 μm. In order to make the release film easy to peel off at the time of use, it is desirable to use a material which is larger than the extrusion width dimension of the reactive adhesive silicone rubber by about 5 to 10 mm on one side.

The preservation of the reactive adhesive silicone rubbers 5, 5 'is performed as follows. That is, when an addition reaction-curable silicone rubber is used, it is stored frozen (about −20 ° C.). When a condensation-curing type is used, moisture-proof packaging is performed so that the curing reaction does not proceed with moisture in the atmosphere. As the moisture-proof packaging, a plastic film having low moisture permeability, for example, a single or composite film of OPP and PVDC, or aluminum-deposited PET, silica-deposited PET,
It may be selected from a composite product of an aluminum foil and a plastic film, but a laminated film of an aluminum foil and a plastic film, which has substantially zero moisture permeability, has small temperature dependency, and has excellent durability, is preferable. Furthermore, this laminated film
In order to prevent the occurrence of pinholes in the aluminum foil due to bending, it is preferable that two laminated films are stacked and then bag-formed by a method such as heat welding. If necessary, a hygroscopic agent such as calcium oxide, synthetic zeolite, or silica gel may be enclosed in the package, or the package may be replaced with nitrogen or vacuum packed.

The sash frame 1 is formed by joining a bar-shaped mold formed by extruding a metal material such as aluminum or steel or a plastic material such as PVC. Examples of the type of the glass plate 2 include float glass, meshed glass, tempered glass, heat-resistant glass, heat-ray absorbing glass, and the like, and any of a transparent product and a colored product may be used. Glass plate 2
The size of is determined by the construction property and is not limited,
The thickness is usually about 3 to 24 mm. In addition,
The present invention can be applied to a metal plate or a plywood other than a glass plate. The fixing piece 3 is provided as needed to fix the glass plate 2. Usually made of hard rubber,
It is attached to the lower surface of the sash frame 1 with an adhesive.

Next, a method for constructing the glass panel structure of the present invention will be described. First, an uncured reactive adhesive silicone rubber 5 shaped in a rectangular shape in advance is attached to the inner peripheral surface of the sash frame 1 as shown in FIG. The reactive adhesive silicone rubbers 5, 5 'are usually provided with no gaps in the seam 8 as shown in FIG.
As shown in (b), the corners are bent and joined at the top. The reactive adhesive silicone rubbers 5, 5 'are shaped in advance and have an initial tackiness, so that they do not drop or peel off.
Thereafter, the glass plate 2 is uniformly pressed on the reactive adhesive silicone rubber 5 and fixed on the fixing piece 3.

Next, the pressing edge 4 is uniformly pressed on the glass plate 2 via the reactive adhesive silicone rubber 5 '. In this case, the reactive adhesive silicone rubber 5 ′ attached to a predetermined portion of one surface of the pressing edge 4 is uniformly pressed to the glass plate 2 (see FIG. 2B), or the reactive adhesive silicone rubber 5 'Is adhered to the peripheral surface of the glass plate 2, and the pressing edge 4 is uniformly pressed to the glass plate 2 (not shown). The reactive adhesive silicone rubber 5 'is shaped in advance as described above and has an initial tackiness, so that there is no fear of falling or peeling. FIGS. 3C and 3D exemplify the form of the pressing edge 4, and usually, FIG.
As shown in the above, four pressing edges are used. FIG. 3 (d)
Is an L-shaped pushing edge, in which case two are used.
Subsequently, the pressing edge 4 is screwed and fixed to the sash frame.
In order to fix the pressing edge 4 to the sash frame 1, in addition to the screw fixing method, a one-touch hooking method may be used (FIG. 4).
reference). When the reactive adhesive silicone rubber 5, 5 'is attached to the adherend in the above-mentioned work, the adhesive strength with the adherend can be further improved by applying a primer on the surface to be adhered in advance. Becomes possible.

[0025]

【Example】

(Example 1) Float glass (height: H: 1) as a glass plate
800mm x width W: 900mm x thickness b: 8mm) and fixed to the bottom part of the aluminum sash frame suitable for this glass plate, two rigid urethane fixing pieces with a thickness of t = 10mm with an adhesive. did. Then, the reactive adhesive silicone rubber assembled as shown in FIG. 3 (a) is attached to the inner peripheral surface of the aluminum sash frame (see FIG. 2 (a)) and lightly pressed with a fingertip from above the release film. Was. As the reactive adhesive silicone rubber, both an addition reaction curing type and a condensation curing type were used. The cross-sectional dimension of the reactive adhesive silicone rubber is a = 5.5 mm
The one with c = 10 mm was used (see FIG. 1).

In the same manner, a reactive adhesive silicone rubber with a release film attached to a predetermined portion of the pressing edge was attached. Next, the release film was peeled off, and the float glass plate was pressure-bonded to the surface of the reactive adhesive silicone rubber attached to the sash frame. Subsequently, the release film of the reactive adhesive silicone rubber stuck to the pressing edge was peeled off, pressed against the surface of the glass plate, and the pressing edge was fixed to the sash frame with screws, and the glass panel structure as shown in FIG. Was completed.

(Evaluation) Compared to the conventional construction method, 1/5
The work was finished in less time, and it was finished beautifully.
The reactive adhesive silicone rubber was completely cured in three days.
The aluminum sash frame and the glass plate are completely integrated via reactive adhesive silicone rubber,
Airtightness was sufficiently ensured. In addition, even when an interlayer displacement of 1/100 was added, there was no peeling from the reactive adhesive silicone rubber, no cutting, etc., and the film sufficiently followed.

[0028]

According to the present invention, since a reactive adhesive silicone rubber preformed into a predetermined shape is used, a plastic sealing material (such as a conventional glass panel structure) for preventing the flow of a sealing material is used. Backup material) is not required, and if the reactive adhesive silicone rubber is pushed into the gap so that the upper surface of the reactive adhesive silicone rubber formed with the sash frame is flush, for example, the pushing depth becomes constant. In addition, the adhesive strength to the glass plate becomes uniform, and the durability of the glass plate is improved. In addition, since special skills and skills are not required for the construction work, the construction work can be easily performed, and since the glass panel structure can be assembled in the factory in advance, the cost of the construction work can be reduced and the work can be reduced. And safety can be improved. Further, since the curing time is short, the construction period can be shortened, and excellent weather resistance, durability, earthquake resistance, water tightness, and air tightness can be obtained.

[Brief description of the drawings]

FIG. 1 is a partially enlarged cross-sectional explanatory view illustrating a glass panel structure of the present invention.

FIG. 2 is an explanatory view illustrating a construction method according to the present invention;
(A) shows a state in which reactive adhesive silicone rubber is stuck to a sash frame, and (b) shows a state in which a pressing edge is pressed against a glass plate.

FIGS. 3A and 3B are schematic diagrams of a reactive adhesive silicone rubber and a pressing edge, wherein FIGS. 3A and 3B show reactive adhesive silicone rubbers, and FIGS.

FIGS. 4A and 4B are partially enlarged cross-sectional explanatory views of another conventional glass panel structure, in which FIG. 4A shows a screw fixing method and FIG. 4B shows a hooking method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 11 Sash frame 2, 12 Glass plate 3, 13 Fixing piece 4, 14 Pressing edge 5, 5 'Reactive adhesive silicone rubber 6 Screw 7, 7' Release film 8 Seam 15 Plastic sealing material (backup material) 16 Sealant

Claims (2)

[Claims] 1. In a glass panel structure in which a glass plate is attached to a sash frame, a reactive adhesive silicone rubber is interposed in a gap between the glass plate and the sash frame and between the glass plate and the pressing edge. A glass panel structure characterized by the above-mentioned. 2. A pre-shaped uncured reactive adhesive silicone rubber is attached to the inner peripheral surface of the sash frame, and then a glass plate is pressed on the reactive adhesive silicone rubber, and then the pressing edge is reactive bonded. Pressure-bonded to a glass plate via a functional silicone rubber,
2. The pressing edge is fixed to a sash frame.
Construction method of the glass panel structure described.