Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A photovoltaic solar cell composite back sheet and preparation method and components thereof

A technology for solar cells and back sheets, applied in chemical instruments and methods, synthetic resin layered products, lamination devices, etc., can solve the problems of weather resistance of solar cell back sheets, weak water vapor barrier insulating back sheet strength, etc. To achieve the effect of high bonding strength, good weather resistance and lower production costs

Active Publication Date: 2017-08-08
JOLYWOOD SUZHOU SUNWATT
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the weather resistance, water vapor barrier, insulation and backboard strength of the solar battery backsheet are relatively weak

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A photovoltaic solar cell composite back sheet and preparation method and components thereof
  • A photovoltaic solar cell composite back sheet and preparation method and components thereof
  • A photovoltaic solar cell composite back sheet and preparation method and components thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The present invention will be described in detail below in conjunction with the embodiments and the accompanying drawings. It should be noted that the described embodiments are only intended to facilitate the understanding of the present invention, rather than limiting it in any way.

[0037] Such as figure 1As shown, this embodiment provides a photovoltaic solar cell composite back sheet, including an outer polyethylene terephthalate (PET) and polyester coextrusion layer 1, an intermediate adhesive layer 2, an inner layer of poly Ethylene (PE) and olefin polymer co-extrusion layer 3; the thickness of the outer polyethylene terephthalate and polyester co-extrusion layer 1 is the same as that of the inner layer polyethylene and olefin polymer co-extrusion The thickness ratio of the exit layer 3 is 1:5˜16:1. The outer coextruded layer is mainly polyethylene terephthalate (PET) and coextruded with various polyesters, and the inner coextruded layer is mainly polyethylene (...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of solar cell backboards. A composite backsheet for photovoltaic solar cells, characterized in that it includes an outer polyethylene terephthalate and polyester coextrusion layer, an intermediate adhesive layer, and an inner polyethylene and olefin polymer coextrusion layer . In the present invention, the outer layer and the inner layer of the melt coextrusion are respectively selected PET and PE as the main body, and polymers similar in structure but different in performance are selected to complement each other, melt coextrusion, the polymer molecules diffuse each other, the bonding strength is large, and the melting The co-extruded layer makes the back sheet have higher peel strength, excellent weather resistance, water vapor barrier, insulation and other properties, and is a photovoltaic solar cell composite back sheet with good comprehensive performance.

Description

technical field [0001] The invention relates to the field of solar battery backplanes, in particular to a photovoltaic solar battery composite backplane, a preparation method and components thereof. Background technique [0002] The solar cell module is a stacked structure, which is composed of panels, glue, cells, glue, and back sheet. The back sheet is the most important material in the solar cell module except the cell sheet. The packaging material that is in contact with the external environment on a large area supports and protects the cells in the module. Generally, the service life of solar cell modules is required to be more than 25 years. Such a long service life requires strict restrictions on the quality of the solar cell module packaging material backsheet. The backsheet must have reliable weather resistance, water vapor barrier and insulation. In the traditional composite backsheet, adhesives are used between the layers in the multilayer composite process. The ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/08B32B7/12B32B37/15
Inventor 林建伟夏文进张育政
Owner JOLYWOOD SUZHOU SUNWATT
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com