Solar cell backboard film with high compounding fastness

A technology for solar cells and backsheet films, applied in circuits, electronic equipment, photovoltaic power generation, etc., can solve the problems of large water vapor transmission, affecting the service life of solar cells, corrosion, etc., to reduce the probability of delamination, and achieve excellent physical stability. properties, improve the effect of blocking water vapor

Active Publication Date: 2020-04-03
JIANGMEN PENGJIANG HUALONG PACKING MATERIAL
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the solar backplane film is mostly made of polyethylene film, which is made of ordinary high-pressure low-density polyethylene, linear low-density polyethylene and some metallocene low-density polyethylene. The main defects are: poor composite fastness, so It is easy to peel off fr

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
  • Solar cell backboard film with high compounding fastness
  • Solar cell backboard film with high compounding fastness
  • Solar cell backboard film with high compounding fastness

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A solar backplane film is composed of outer layer, middle layer and inner layer materials, and the components of each layer are as follows.

[0028] Table 1 Example 1 The proportion of components in each layer

[0029]

[0030]

[0031] Among them, the melt index of the outer material ethylene-octene copolymer is 2g / 10min, and the density is 0.810g / cm 3 ; The melt index of the middle material metallocene high-density polyethylene is 0.05 / 10min, and the density is 0.900g / cm 3 ;The melt index of the inner material low-density polyethylene is 2g / 10min, and the density is 0.900g / cm 3 .

[0032] The preparation method of above-mentioned solar back plate film is as follows:

[0033] 1. Put the raw materials of each layer into the outer layer extruder, middle layer extruder, and inner layer extruder respectively for melting and plasticizing, and then output them. The materials output by each extruder are transported to the die head, extruded and blown film and Fusion...

Embodiment 2

[0048] A solar backplane film is composed of outer layer, middle layer and inner layer materials, and the components of each layer are as follows.

[0049] Table 3 embodiment 2 each layer component ratio

[0050]

[0051] The preparation method of the above-mentioned solar backboard film is the same as that in Example 1.

[0052] Among them, the melt index of the outer material propylene-octene copolymer is 7g / 10min, and the density is 0.895g / cm 3 ; The melt index of the middle material metallocene high-density polystyrene is 6g / 10min, and the density is 0.970g / cm 3 ;The melt index of the inner low-density polypropylene is 15g / 10min, and the density is 0.940g / cm 3 .

[0053] The setting process of extruder process parameter is similar to embodiment 1, and concrete process parameter is as shown in the following table:

[0054] Extruder in table 4 embodiment 2 is for each layer component preparation parameter

[0055]

Embodiment 3

[0057] A solar backplane film is composed of outer layer, middle layer and inner layer materials, and the components of each layer are as follows.

[0058] Table 5 embodiment 3 each layer component ratio

[0059]

[0060]

[0061] The preparation method of the above-mentioned solar backboard film is the same as that in Example 1.

[0062] Among them, the melt index of the outer material ethylene-butene copolymer is 3.5 / 10min, and the density is 0.882 / cm 3 ; The melt index of the middle layer material metallocene polypropylene is 2.3g / 10min, and the density is 0.900g / cm 3 ;The melt index of the inner material polyhexene is 7g / 10min, and the density is 0.900g / cm 3 .

[0063] The setting process of extruder process parameter is similar to embodiment 1, and process parameter is as shown in the table below:

[0064] Extruder in table 6 embodiment 3 is for each layer component preparation parameter

[0065]

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
Melt indexaaaaaaaaaa
Densityaaaaaaaaaa
Melt indexaaaaaaaaaa
Login to view more

Abstract

The invention relates to a solar cell backboard film which is composed of an outer layer material, a middle layer material and an inner layer material. The outer layer material is olefin copolymer, the middle layer material is metallocene polyolefin, and the inner layer material is polyolefin. High compounding fastness is achieved among the outer layer, middle layer and inner layer materials of the solar cell backboard film, between the inner layer material and an EVA layer of the solar cell backboard film and between the outer layer material and middle layer PET of the solar cell backboard film due to the synergistic effect, so that the delaminating probability of the solar cell backboard is reduced to the maximum extent. The outer layer material, the middle layer material and the inner layer material of the solar cell backboard film have relatively strong intermolecular force, so that the water resistance and the water vapor corrosion resistance of the solar cell backboard film are improved.

Description

technical field [0001] The invention relates to the field of functional thin films, in particular to a solar cell backboard film with high composite fastness. Background technique [0002] With the continuous consumption of global energy and increasingly severe environmental problems, people began to gradually pay attention to green, clean and renewable energy. As an inexhaustible source of energy, solar energy has become a research hotspot in the new generation of renewable energy. According to reports, by 2050, the utilization rate of solar energy will account for more than 40% of the entire energy system. At present, among the devices for converting solar energy into electric energy, solar panels are commonly used devices. In the solar panel module structure, the solar cell backsheet is located at the outermost layer on the back of the module, which protects and supports the solar panel, and protects the core components of the solar cell from water vapor erosion; The c...

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
IPC IPC(8): B32B27/08B32B27/18B32B27/32B32B33/00H01L31/049
CPCB32B27/08B32B27/18B32B27/32B32B27/327B32B33/00B32B2250/03B32B2307/7246B32B2457/10B32B2457/12H01L31/049Y02E10/50
Inventor 文斌森魏洪媚
Owner JIANGMEN PENGJIANG HUALONG PACKING MATERIAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap