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UV curing adhesive glue, solar reflective strip and solar reflective strip seamless film connecting production process

A production process and solar energy technology, applied in the field of solar cells, can solve problems such as low production yield, high repair rate, and appearance differences, and achieve good weather resistance, strong mechanical strength, and yield improvement effects

Active Publication Date: 2020-07-24
NINGBO EXCITON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the joint part of the existing solar reflective strip has a different appearance from the normal part, the present invention provides a UV curing adhesive, a solar reflective strip and a production process for the seamless joint film of the solar reflective strip
The appearance of the front of the joint part of the solar reflective strip attached to the joint by the UV-cured adhesive has little difference from the appearance of the normal part of the solar reflective strip (that is, the non-joint part). Observing the joint part of the solar reflective strip and the front of the normal part (the side of the reflective layer) from an angle, there is no obvious color difference), thus effectively solving the problem of high repair rate due to the difference in appearance between the joint part and the normal part of the solar reflective strip in the existing actual production process , The problem of low production yield

Method used

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  • UV curing adhesive glue, solar reflective strip and solar reflective strip seamless film connecting production process
  • UV curing adhesive glue, solar reflective strip and solar reflective strip seamless film connecting production process
  • UV curing adhesive glue, solar reflective strip and solar reflective strip seamless film connecting production process

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Experimental program
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Effect test

Embodiment 1

[0070] The UV curing adhesive provided by the present invention (abbreviated as UV adhesive) comprises the following components: 52 parts of carboxyl-free urethane acrylate oligomer, its molecular weight is 35000~40000, and the glass transition temperature Tg is -26 ℃, 42 parts of carboxyl-free monofunctional acrylate monomer, 1 part of acrylate leveling agent, and 5 parts of TPO photoinitiator. The components are mixed together to obtain the UV curable adhesive. Among them, the carboxyl-free urethane acrylate oligomer and the carboxyl-free monofunctional acrylate monomer were provided by Changxing Materials Industry Co., Ltd., the leveling agent was provided by BYK Company of the United States, and the photoinitiator was provided by BASF. The above-mentioned UV curing adhesive is coated on the UV-1 adhesive tape (transparent adhesive tape), and attached to the substrate layer of the joint part of the solar reflective strip (such as Figure 4 Shown), carry out ultraviolet lig...

Embodiment 2

[0073] The UV curing adhesive provided by the present invention includes the following components: 57 parts of carboxyl-free urethane acrylate oligomer with a molecular weight of 30,000 to 35,000, a glass transition temperature Tg of -24°C, and 38 parts of carboxyl-free Monofunctional acrylate monomer, 0.8 parts of acrylate leveling agent, and 4.2 parts of TPO photoinitiator are mixed together. Among them, the carboxyl-free urethane acrylate oligomer and the carboxyl-free monofunctional acrylate monomer were provided by Changxing Materials Industry Co., Ltd., the leveling agent was provided by BYK Company of the United States, and the photoinitiator was provided by BASF. Apply the above UV-curable adhesive to the UV-1 tape, attach it to the joint part of the solar reflective strip, perform ultraviolet curing, and divide into strips normally to obtain 1.2mm strips of the solar reflective strip.

[0074] Among them, the thickness of the joint part of the solar reflective strip i...

Embodiment 3

[0076]The UV curing adhesive provided by the present invention includes the following components: 55 parts of carboxyl-free urethane acrylate oligomer with a molecular weight of 30,000 to 35,000, a glass transition temperature Tg of -24°C, and 40 parts of carboxyl-free Monofunctional acrylate monomer, 0.5 parts of acrylate leveling agent, and 4.5 parts of TPO photoinitiator are mixed together. Among them, the carboxyl-free urethane acrylate oligomer and the carboxyl-free monofunctional acrylate monomer were provided by Changxing Materials Industry Co., Ltd., the leveling agent was provided by BYK Company of the United States, and the photoinitiator was provided by BASF. Apply the above UV-curable adhesive to the UV-1 tape, attach it to the joint part of the solar reflective strip, perform ultraviolet curing, and divide into strips normally to obtain 1.2mm strips of the solar reflective strip.

[0077] Among them, the thickness of the joint part of the solar reflective strip is...

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Abstract

The invention relates to the technical field of solar cells, in particular to UV curing adhesive glue, a solar reflective strip and a solar reflective strip seamless film connecting production processusing the adhesive glue. In order to solve the problem of appearance difference of film belt joints in the actual production process of an existing reflective strip, the invention provides UV curingadhesive glue, a solar reflective strip and a solar reflective strip seamless film connecting production process. The UV adhesive glue is prepared from the following components in percentage by weight: 50-65% of acrylic resin oligomer, 30-45% of acrylic resin monomer, 0.4-1% of a leveling agent and 2-5% of a photoinitiator, wherein the percentage is weight percentage. A solar reflective strip formed by attaching the UV curing adhesive provided by the invention to a joint part has high stripping force, tensile strength, elongation at break and weather resistance, so that the battery assembly yield is improved.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a UV curing adhesive, a solar reflective strip and a production process for seamless filming of the solar reflective strip using the adhesive. Background technique [0002] Solar reflective strips are currently widely recognized as a way to increase the power of solar battery packs. They are mainly divided into narrow strips and gap reflective strips. Most of the current patented design schemes of solar reflective strips are mainly focused on the differentiation of the structural surface, so as to improve the overall power of the module. [0003] In the actual production and manufacturing process, since the processing of solar reflective strips will go through processes such as structural molding, aluminum plating on the structural surface, and EVA coating, when actually waiting for the strips, there will often be a large number of short-meter finished products. According to...

Claims

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Application Information

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IPC IPC(8): C09J175/14H01L31/054
CPCC09J175/14H01L31/0547C08L33/04Y02E10/52
Inventor 唐海江周鼎简伟任夏寅赵鸣愈薛永富李刚张彦
Owner NINGBO EXCITON TECH
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