TWM449693U - Thin silicone rubber sheet for easy vacuum breaker - Google Patents

Description

Easy to break vacuum rubber sheet

The present invention relates to a ruthenium rubber layer, and more particularly to a ruthenium rubber sheet which is easy to break vacuum.

In the conventional solar cell laminator, in order to achieve uniform pressure and good thermal conductivity during the hot press forming operation of the solar cell, a rubber sheet is placed between a press mold and the solar cell.

A printed circuit board hot press for forming a printed circuit board must also have a rubber sheet between a press mold and the printed circuit board during the hot press forming operation of the printed circuit board.

For example, TW M409160 (Applicant's patent application) is to make at least one of the first surface and the second surface of the rubber sheet into a matte surface, and the average thickness of the first and second surfaces is 0.005 μ m~0.7 μ m can reduce the surface adhesion of the tantalum rubber sheet to the solar cell or printed circuit board.

Further, as TW I273126, which discloses that the surface roughness of a polyxene oxide sheet is less than 0.8 μm , the polyfluorene oxide sheet is easily bonded, and when it is 5 μm or more, the electrical contact of the electrode is unstable.

In the above solar cell or printed circuit board process, if the contact interface of the rubber sheet is flexible, even after a long time, high pressure, high temperature pressing and pressure release, the vacuum breaking speed is fast. Will not affect the smoothness of the process. Conversely, if the contact interface of the ruthenium rubber layer is a rigid mirror surface (for example, a stainless steel lining), after a long time, high pressure, and high temperature pressing, 矽 At the corresponding contact interface of the rubber layer, it is difficult to break the vacuum after the pressure is released, and the speed is slow, which may affect the smoothness of the process.

Therefore, for the different application characteristics of the contact interface, the microstructure design of the rubber sheet surface needs to be improved.

Therefore, the object of the present invention is to provide a crucible rubber sheet which is easy to break and which can improve the vacuum breaking speed and improve the smoothness of the process by utilizing the special design of the surface.

Therefore, the vacuum-breakable rubber sheet of the present invention has a first end portion, a second end portion opposite to the first end portion, and a first end portion extending from the first end portion to the second end portion. a surface, a second surface opposite to the first surface, a first side edge coupled between the first and second ends and corresponding to one of the first and second surfaces, and a first connection a second side edge between the two end portions opposite to the first side edge, the first surface and the second surface are both matte, and the surface roughness of the first surface and the second surface are both It is 5 μ m~50 μ m.

The effect of the novel: for the application characteristic that the contact interface is a rigid mirror surface, the average surface roughness of the first surface and the second surface is 5 μ m~50 μ m, and after the pressure release, the vacuum breaking speed can be improved. Moreover, the process using the ruthenium rubber sheet is smooth, thereby increasing productivity.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

As shown in FIG. 1 and FIG. 2, the preferred embodiment of the vacuum-breakable silicone rubber sheet 100 of the present invention is suitable for use between a pressurizing device of a solar cell laminator and a solar cell (not shown). A mirror stainless steel lining is further disposed between the enamel rubber sheet 100 and the solar cell, such that a contact interface of the 矽 rubber sheet 100 is a rigid mirror surface.

The 矽 rubber sheet 100 has a rectangular shape and has a first end portion 110, a second end portion 120 opposite to the first end portion 110, and a first end portion between the first end portion and the second end portion 110, 120. a first side edge 130, a second side edge 140 coupled between the first and second end portions 110, 120 and opposite to the first side edge 130, between the first and second side edges 130, 140 The width W1 is 250 mm to 4200 mm, and the length L1 between the first and second ends 110 and 120 is 375 mm to 6300 mm.

In terms of structure, the silicone rubber sheet 100 comprises a rubber layer 10 and a reinforcing material 20.

The 矽 rubber layer 10 has a first surface 11 extending from the first end portion 110 to the second end portion 120, and a second surface 12 opposite to the first surface 11, the first side edge 130 corresponding thereto One side of the first and second surfaces 11, 12, the second side edge 140 is opposite to the first side edge 130 and corresponds to the other side of the first and second surfaces 11, 12, the first and second surfaces 11, 12 The rubber layer 10 is disposed on the crucible. The first and second surfaces 11, 12 are all matte, and the total thickness t1 between the first and second surfaces 11 and 12 is 0.75 mm to 20 mm, and the first and second surfaces 11 and 12 have an average surface. The thickness can be 5μm~50μm, this EXAMPLES The preferred surface average roughness of the first and second surfaces 11 and 12 is 20 μm to 30 μm. It has been experimentally tested that when the average surface roughness is 5 μm to 50 μm, the mirror liner will not be contaminated. When the average surface roughness is less than 5 μm, the vacuum breaking after the pressure release is difficult and the speed is slow. When the surface average roughness is more than 50 μm, the antistatic property is poor.

The reinforcing material 20 is covered by the enamel rubber layer 10 and interposed between the first and second surfaces 11 and 12. The reinforcing material 20 of the embodiment is polyparaphenylene terephthalamide (this embodiment adopts A fabric or fiberglass cloth woven from DuPont's trademark "Kevlar".

Therefore, when the solar cell laminator performs the hot press forming operation of the solar cell, the surface roughness of the first and second surfaces 11, 12 of the ruthenium rubber sheet 100 is utilized for the application characteristics of the rigid mirror surface of the contact interface. When the pressure is 5 μm to 50 μm, the vacuuming speed of the contact interface of the tantalum rubber sheet 100 can be increased, and the solar cell process using the tantalum rubber sheet 100 can be smoothed, thereby increasing the productivity.

Moreover, with the arrangement of the reinforcing material 20, when the enamel rubber sheet 100 is pressed, a better compressive strength can be produced, and the resistive pressure can be as high as 16 kg/cm ² , so that the mechanical strength with better withstand voltage is obtained. Can extend the service life.

As shown in FIG. 3 and FIG. 4 , the second preferred embodiment of the present invention can reduce the viscous and pressure-resistant enamel rubber sheet 100 ′, and is suitable for a pressing device for a printed circuit board hot press and a For the between the pressed objects of the printed circuit board (not shown), a mirror stainless steel lining is further disposed between the enamel rubber sheet 100' and the printed circuit board, so that a contact interface of the 矽 rubber sheet 100' is just Sexual mirror. And the difference from the first embodiment is that the width W2 between the first and second side edges 130', 140' is between 250 mm and 2300 mm, and the length between the first and second end portions 110', 120' L2 is 250 mm to 2300 mm, but the total thickness t2 is also 0.75 mm to 20 mm. Further, the ruthenium rubber sheet 100' of the second preferred embodiment of the present invention can achieve the same object and effect as the first embodiment.

In the second embodiment, the average surface roughness of the first and second surfaces 11', 12' may be 5 μm to 50 μm. In fact, the first and second surfaces 11', 12' have a preferred average surface roughness. It is 20 μm to 30 μm.

It is worth noting that the process of the above-mentioned enamel rubber sheets 100, 100' can be continuously vulcanized, followed by extrusion, calendering, primary vulcanization, secondary vulcanization, etc., wherein the first vulcanization operation can adopt a drum type vulcanizing machine, The secondary vulcanization operation can be carried out in an oven, and the length of the semi-finished product produced is not limited. The lengths L1, L2 in the above embodiments are cut as needed for product application. Further, the material of the above ruthenium rubber layer may include a main agent [such as vinyl oxime rubber (VSi), benzoate rubber (PSi), vinyl oxime rubber and benzoate rubber polymer (PVSi) or fluorinated oxime rubber). (FVSi)], bridging agent (such as low temperature reactive peroxide) and other compounding agents.

However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change and modification made by the novel patent application scope and the novel description content, All remain within the scope of this new patent.

100‧‧‧矽 rubber sheet

T1‧‧‧ total thickness

110‧‧‧First end

100'‧‧‧矽 rubber sheet

120‧‧‧second end

110’‧‧‧ first end

130‧‧‧First side edge

120’‧‧‧second end

140‧‧‧Second side

130’‧‧‧First side edge

10‧‧‧矽 rubber layer

140’‧‧‧second side

11‧‧‧ first surface

11’‧‧‧ first surface

12‧‧‧ second surface

12’‧‧‧second surface

20‧‧‧ reinforcing materials

W2‧‧‧Width

W1‧‧‧Width

L2‧‧‧ length

L1‧‧‧ length

T2‧‧‧ total thickness

Figure 1 is a front cross-sectional view showing a first preferred embodiment of the present invention; 2 is a top plan view of a preferred embodiment of the present invention; FIG. 3 is a front cross-sectional view of a preferred embodiment of the present invention; and FIG. 4 is a plan view of a second preferred embodiment of the present invention.

100‧‧‧矽 rubber sheet

110‧‧‧First end

120‧‧‧second end

10‧‧‧矽 rubber layer

11‧‧‧ first surface

12‧‧‧ second surface

20‧‧‧ reinforcing materials

L1‧‧‧ length

T1‧‧‧ total thickness

Claims (9)

A vacuum-breakable silicone rubber sheet having a first end, a second end opposite the first end, a first surface extending from the first end to the second end, and a first surface a second surface opposite to the first surface, a first side edge coupled between the first and second ends and corresponding to one of the first and second surfaces, and a first end and a second end a first side surface opposite to the first side edge, the first surface and the second surface are both matte, and the surface roughness of the first surface and the second surface is 5 μ m~50 μ m. The vacuum-breakable silicone rubber sheet according to claim 1, wherein the first surface and the second surface have an average surface roughness of 20 μm to 30 μm . The vacuum-breakable silicone rubber sheet according to claim 2, further comprising a rubber layer and a reinforcing material coated between the first and second surfaces, the reinforcing material The first and second surfaces are disposed on the rubber layer. The vacuum-breakable enamel rubber sheet according to claim 3, wherein the reinforcing material is selected from the group consisting of woven fabrics and glass fiber cloth woven from polytrimethylene terephthalamide. One. The vacuum-breakable silicone rubber sheet according to any one of claims 1 to 4, wherein the total thickness between the first and second surfaces is 0.75 mm to 20 mm. The vacuum-breakable silicone rubber sheet according to claim 5, wherein the width between the first and second side edges is 250 mm to 4200 mm. . According to the vacuum-breakable silicone rubber sheet of claim 6, the length between the first and second ends is 375 mm to 6300 mm. The vacuum-breakable silicone rubber sheet according to claim 5, wherein the width between the first and second side edges is from 250 mm to 2300 mm. The vacuum-breakable silicone rubber sheet of claim 8, wherein the length between the first and second ends is from 250 mm to 2300 mm.