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Sealing joint strip and application method thereof

A technology of sealing strips and elastomers, applied in adhesives, polyurea/polyurethane adhesives, solar thermal devices, etc., can solve problems such as long curing time, unstable quality, and low bonding strength, and achieve excellent environmental performance , Excellent sealing effect, good sealing effect

Inactive Publication Date: 2012-11-14
DSM SUNSHINE SOLAR TECH (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Silicone adhesives have good aging resistance, moisture resistance and insulation properties, etc., but the disadvantages of silicone adhesives are: long curing time, harmful substances such as acid or oxime are released during the curing process, and residual glue needs to be cleaned after curing, which wastes resources and increase production costs
However, the disadvantages of double-sided tape are: its low bonding strength, unstable quality, poor environmental durability and high cost
However, physical seals are known to have limited sealing effectiveness
[0007] To sum up, the common troublesome materials such as rubber and thermoplastic elastomer can only play the role of physical sealing and cushioning through compression, poor sealing and durability, low efficiency, and not environmentally friendly

Method used

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  • Sealing joint strip and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] In terms of parts by mass, 0.6 parts of N-β (aminoethyl)-γ-aminopropyltrimethoxy base silane (Dow Corning, USA), and mix well. The obtained composition is processed into a continuous film or a U-shaped or C-shaped rubber strip through melt blending and extrusion molding.

Embodiment 2

[0049] In terms of parts by mass, 0.6 parts of γ-(2,3-glycidyloxy)propyltrimethoxy base silane (Dow Corning, USA), and mix well. The obtained composition is processed into a continuous film or a U-shaped or C-shaped rubber strip through melt blending and extrusion molding.

Embodiment 3

[0051] In terms of parts by mass, 0.6 parts of N-β (aminoethyl)-γ-aminopropyltrimethoxy Base silane (U.S. Dow Corning), add 30 parts of maleic anhydride grafted SEB S (U.S. Curton Polymers), 0.2 parts of antioxidant tetrakis (methylene (3,5-di-(tert)-butyl -4-Hydroxyhydrocinnamate)) methane (Nanjing Ningkang Chemical Co., Ltd.), 0.2 parts of light stabilizer bis(2,2,6,6-tetramethylpiperidinyl) sebacate (Nanjing Milan Chemical Co., Ltd. Co., Ltd.) and mix well. The obtained composition is processed into a continuous film or a U-shaped or C-shaped rubber strip through melt blending and extrusion molding.

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Abstract

The invention provides a sealing joint strip which is used for heat bonding of a solar battery assembly or a flat-plate solar heat collector with a border. The sealing joint strip is characterized by comprising the following components by mass: 100 parts of thermoplastic polymer elastomer and 0.1 to 10 parts of a silane coupling agent. During utilization, the sealing joint strip can be pressed at a position where the solar battery assembly or the flat-plate solar heat collector and the border joint in the assembling process of a solar module and is then laid aside or treated at a certain temperature for a period of time so as to finish heat bonding, which allows good sealing and fixing effects of the sealing joint strip to be obtained. The application method for the sealing joint strip is characteristic of simpleness, high efficiency and environment friendliness. The sealing joint strip and the application method can also be used for the flat solar heat collector.

Description

technical field [0001] The present invention relates to a sealing material and its use method, specifically, the present invention relates to a sealant strip and its use method, the said sealant strip and its use method are used for solar cell modules or flat solar heat collectors and frames The combined bonding has excellent sealing and durability, and its operation process is simple, efficient and environmentally friendly. Background technique [0002] If the solar cell is directly exposed to the air, its photoelectric conversion efficiency will drop rapidly, thereby gradually losing its practical value. In order to protect solar cells from mechanical damage and environmental damage, they need to be sealed, laminated, framed, and packaged into solar cell modules. [0003] According to different usage requirements, solar cell modules can be divided into rigid solar cell modules and flexible solar cell modules. The most common type of rigid solar cell module is a large-are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J153/02C09J123/16C09J123/00C09J147/00C09J127/06C09J175/04C09J167/00C09J177/00C09J127/12C09J183/04C09J11/06H01L31/048H01L31/18F24J2/46
CPCY02E10/40Y02E10/50Y02P70/50
Inventor 刘学习
Owner DSM SUNSHINE SOLAR TECH (SUZHOU) CO LTD
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