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Aging-resistant adhesive tape used for protecting edge of film photovoltaic module and preparation method of adhesive tape

A thin-film photovoltaic module and edge protection technology, which is applied in the direction of film/sheet adhesive, adhesive, adhesive type, etc., can solve the problem of hard base material on the surface of the tape and lack of elasticity, so as to achieve good sticking effect and improve efficiency Effect

Active Publication Date: 2014-03-05
YANTAI DARBOND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, edge tape patents and products for the protection of new thin-film battery components are very rare, such as 3M1350 single-sided tape, but the surface substrate of this tape is relatively hard and lacks elasticity, and may not be able to protect the components well when the temperature is low. protection; therefore, it is necessary to design a new type of elastic product structure to achieve bonding to the surface of the film component while ensuring the aging resistance of the tape

Method used

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  • Aging-resistant adhesive tape used for protecting edge of film photovoltaic module and preparation method of adhesive tape

Examples

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Effect test

Embodiment 1

[0023] Such as figure 1 As shown, an aging-resistant tape for edge protection of thin film photovoltaic modules consists of a release layer 3, a pressure-sensitive adhesive layer 2 coated on the release layer 3 and a substrate 1 compounded on the pressure-sensitive adhesive layer 3 Composition, first prepare substrate 1, described substrate is polyether type thermoplastic polyurethane elastomer black film, thickness is 150 μ m, after corona electric field intensity is 32 kV / cm corona treatment, substrate 1 surface corona The value is 41 dynes;

[0024] Prepare single-sided release material release paper, apply acrylic acid-butyl acrylate polymer (commercially available from Changxing Chemical as a product of 7002E) on the release layer of the release paper, set the gap of the coating head scraper to make The thickness of the acrylic acid-butyl acrylate polymer is 60 μm, the drying temperature of the drying tunnel is set at 75-90 ° C, and the release paper coated with the acry...

Embodiment 2

[0028] Such as figure 1 As shown, an aging-resistant tape for edge protection of thin film photovoltaic modules consists of a release layer 3, a pressure-sensitive adhesive layer 2 coated on the release layer 3 and a substrate 1 compounded on the pressure-sensitive adhesive layer 3 Composition, first prepare substrate 1, described substrate is polyether type thermoplastic polyurethane elastomer black film, thickness is 160 μ m, after corona electric field intensity is 36 kV / cm corona treatment, substrate 1 surface corona The value is 44 dynes;

[0029] Prepare single-sided release material release paper, apply acrylic acid-butyl acrylate polymer (commercially available from Changxing Chemical as a product of 7002E) on the release layer of the release paper, set the gap of the coating head scraper to make The thickness of the acrylic acid-butyl acrylate polymer is 50 μm, the drying temperature of the drying tunnel is set at 80-90 ° C, and the release paper coated with the acry...

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Abstract

The invention relates to an aging-resistant adhesive tape used for protecting the edge of a film photovoltaic module, and a preparation method of the adhesive tape. The adhesive tape consists of a release layer, a pressure sensitive adhesive layer coated on the release layer, and a substrate compounded on the pressure sensitive adhesive layer, wherein the release layer is made of a single-side release material which is resistant to 100-120 DEG C; the thickness of the pressure sensitive adhesive layer is 50-60mu m; the ingredient of the pressure sensitive adhesive layer is crylic acid-butyl acrylate polymer; the substrate is a black thermoplastic polyurethane elastomer film with the thickness of 140-160mu m. By adopting the preparation method, the aging-resistant adhesive tape has the advantages of good adhesion effect for different adhering surfaces, aging resistance, softness, elasticity and the like, practical operation in production of the module is easy to carry out, and after primary adhesion and fixation, a procedure of adding an aluminum rim is not needed but entering a next procedure directly, so that the efficiency in producing the module is improved.

Description

technical field [0001] The invention relates to an aging-resistant adhesive tape used for edge protection of thin-film photovoltaic modules and a preparation method thereof. Background technique [0002] In the production process of photovoltaic cell modules, the edge protection is generally realized by the aluminum alloy frame, and the sealing is done by silica gel or adhesive tape. At present, the thickness of crystalline silicon cells normally used is about 200 μm, and the future development direction is 100 μm, which is conducive to improving the utilization rate of silicon wafers and reducing costs. While the cells are becoming thinner, thin-film modules have appeared. The edge does not need the protection of the aluminum frame, and the protective tape is directly applied to protect the battery components; while the components are thinner, there are higher requirements for the materials applied to the components: good aging resistance, light and soft, tape Better paste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J133/02
Inventor 王学刚王建斌陈田安解海华
Owner YANTAI DARBOND TECH
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