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Recycling method of solar back board material

A technology of a solar back sheet and a recycling method, which is applied in the field of polymer material recycling and reuse, can solve problems such as hindering the large-scale promotion of solar cells, failing to meet the requirements of energy saving and emission reduction, waste of economic value of materials, etc. Low-cost, easy-to-handle effects

Inactive Publication Date: 2017-09-29
QUANZHOU NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the industry can only deal with it through "crushing-compression into blocks" or "incineration". It is gradually eroding people's impression and concept of "green lighting" of solar cells, hindering the large-scale promotion of solar cells

Method used

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  • Recycling method of solar back board material

Examples

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Effect test

Embodiment 1

[0024] A method for recycling solar backboard materials, comprising the following steps:

[0025] (1) Use a crusher to break the solar backplane material into pieces;

[0026] (2) After mixing 20 parts of water, 50 parts of sodium hydroxide, 5 parts of JFC-1 and 60 parts of acetone uniformly, a separating liquid is obtained;

[0027] (3) Place the broken solar backboard material in step (1) in the separation liquid obtained in step (2), and after stirring at 30° C. for 0.1 hour, the separation liquid makes the outer protective layer of the solar backboard material, The interlayer and lamination bonding layer are separated, so that the core structure of the solar backsheet material is completely separated and recycled separately.

[0028] A schematic diagram of one of the fragments of the solar backsheet material after separation is shown in figure 1 As shown, the materials from left to right in the figure are PVDF as the outer protective layer, PET as the middle layer and PV...

Embodiment 2

[0030] A method for recycling solar backboard materials, comprising the following steps:

[0031] (1) Use a crusher to break the solar backplane material into pieces;

[0032] (2) After mixing 500 parts of water, 1 part of potassium hydroxide, 0.1 part of JFC-E and 10 parts of ethanol evenly, a separation liquid is obtained;

[0033] (3) Place the broken solar backboard material in step (1) into the separation liquid obtained in step (2), and after stirring for 72 hours at 100° C., the separation liquid makes the outer protective layer of the solar backboard material, The interlayer and lamination bonding layer are separated, so that the core structure of the solar backsheet material is completely separated and recycled separately.

Embodiment 3

[0035] A method for recycling solar backboard materials, comprising the following steps:

[0036] (1) Use a crusher to break the solar backplane material into pieces;

[0037] (2) After mixing 100 parts of water, 20 parts of calcium hydroxide, 1 part of JFC-2 and 20 parts of methanol evenly, a separation liquid is obtained;

[0038] (3) Place the solar backboard material broken in step (1) into the separation liquid obtained in step (2), and after stirring for 10 hours at 50° C., the separation liquid makes the outer protective layer of the solar backboard material, The interlayer and lamination bonding layer are separated, so that the core structure of the solar backsheet material is completely separated and recycled separately.

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Abstract

The invention discloses a recycling method of a solar back board material. The recycling method comprises the following steps: firstly, crushing the solar back board material by adopting a physical or chemical means; then evenly mixing 20 to 500 parts of water, 1 to 50 parts of alkali, 0.1 to 5 parts of permeating agent and 1 to 60 parts of organic solvents to obtain separation liquid; finally, putting the solar back board material into the separation liquid to be processed for 0.1 to 72 hours at a temperature of 30 to 100 DEG C so that a core structure of the solar back board material is separated. The invention discloses the recycling method of the solar back board material, which has the characteristics of non-toxicity in a separation process, high separation efficiency and low cost; moreover, the technological process is easy for large-scale treatment, and has an important application value and academic signification.

Description

technical field [0001] The invention relates to the field of recycling and reuse of polymer materials, in particular to a method for recycling solar backboard materials. Background technique [0002] A solar cell is a photoelectric semiconductor sheet that uses sunlight to directly generate electricity. It is mainly composed of photovoltaic glass, EVA, solar cells, EVA and a backplane. With the protection of the environment and the huge demand for renewable clean energy in various countries, solar cells will have broad application prospects. [0003] The solar cell is packaged according to the structure of photovoltaic glass-EVA-solar cell-EVA-back sheet. The back sheet is located on the outermost layer of the back of the battery and is an important part of the solar cell. It not only plays the role of packaging, but also It plays a role in ensuring that the solar battery is not affected by the environment and ensures the service life of the solar battery. At present, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B17/00B29B17/02B29B17/04H01L31/049
CPCH01L31/049B29B17/00B29B17/02B29B17/0412B29B2017/0203B29B2017/0213Y02E10/50Y02W30/62Y02W30/52Y02W30/82
Inventor 卓东贤翟波陈梅香曾鸽罗水源
Owner QUANZHOU NORMAL UNIV
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