Supercharge Your Innovation With Domain-Expert AI Agents!

Barrier film for solar back sheet and preparation method thereof

A technology for solar backplanes and solar panels, applied in chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve problems such as poor water vapor barrier properties, achieve high water vapor barrier properties and hydrolysis resistance, and prepare The method is simple and the process is simple

Active Publication Date: 2019-08-20
NINGBO CHANGYANG TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of poor water vapor barrier properties of existing solar backplane films, the present invention provides a barrier film for solar backplanes and a preparation method thereof

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
  • Barrier film for solar back sheet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] The preparation method of the barrier film for solar back panel provided by the invention comprises the following steps:

[0022] (1) Granulation: Mix polyester resin, nano-inorganic particles, chain extender, nucleating agent and dispersant evenly and carry out twin-screw mixing and granulation to obtain polyester functional masterbatch;

[0023] (2) Cast sheet: three-layer co-extrusion process is adopted; the material of layer A is PEN, and for layer B, the polyester resin and the polyester functional masterbatch obtained in step (1) are mixed according to the ratio, and then ABA three-layer co-extrusion is carried out Melting plasticization, cast casting;

[0024] (3) Stretching to form a film: longitudinally stretching, transversely stretching, heat-setting, winding and packaging the cast sheet obtained in step (2) to obtain a barrier film for a solar backplane.

[0025] The particle size of the nano inorganic filler is 0.2-0.6 μm. The polyester resin used in Exam...

Embodiment 1

[0030] In the barrier film for solar back panels provided by the present invention, the raw materials of the B layer of the barrier film include the following components: 91% of PET resin, 5% of nano-montmorillonite, 0.5% of carbodiimide, and NA-10 nucleating agent 2%, polyethylene wax 1.5%. The barrier film is an ABA three-layer co-extrusion structure, and the thickness of the barrier film is 250 μm, wherein, the thickness of the A layer accounts for 8% of the total thickness, and the thickness of the B layer accounts for 92% of the total thickness. The relevant properties are shown in Table 1.

Embodiment 2

[0032] In the barrier film for solar back panels provided by the present invention, the raw materials of the B layer of the barrier film include the following components: 91% of PET resin, 5% of nano-montmorillonite, 1.5% of carbodiimide, and NA-10 nucleating agent 1.5%, polyethylene wax 1.0%. The barrier film is an ABA three-layer co-extrusion structure, and the thickness of the barrier film is 250 μm, wherein, the thickness of the A layer accounts for 10% of the total thickness, and the thickness of the B layer accounts for 90% of the total thickness. The relevant properties are shown in Table 1.

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
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of thin films, in particular to a barrier film for a solar back panel and a preparation method thereof. In order to solve the problem of poor water vapor barrier properties of solar backplane films, the present invention provides a barrier film for solar backplanes and a preparation method thereof. The barrier film is an ABA three-layer structure, the material of the A layer in the barrier film is PEN; the raw material of the B layer is composed of polyester resin, nano inorganic filler, chain extender, nucleating agent and dispersant ; In the B layer, the addition of the polyester resin is 83-94%, the addition of the nano-inorganic filler is 1-10%, the addition of the chain extender is 0.5-3%, the addition of the The addition amount of the nucleating agent is 0.5-2%, and the addition amount of the dispersant is 0.5-2%. The barrier film has high water vapor barrier property and hydrolysis resistance. The preparation method of the barrier film for solar back panels provided by the invention has simple process and is suitable for large-scale production.

Description

technical field [0001] The invention relates to the field of thin films, in particular to a barrier film for a solar back panel and a preparation method thereof. Background technique [0002] The barrier film for solar backplane (referred to as solar backplane film) is located on the back of the solar panel to support and protect the cells, which requires the backplane film to have reliable insulation, water vapor barrier and hydrolysis aging resistance . Common backsheets currently on the market are usually TPT or TPE composite structures, where the P layer refers to the PET film layer that plays a supporting role, and PET is a medium barrier material that has poor barrier properties to water vapor and oxygen, so , the development of a high-barrier solar backsheet film has important practical significance for improving the life of solar cells. Contents of the invention [0003] In order to solve the problem of poor water vapor barrier properties of existing solar backpl...

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): B32B27/36B32B27/18B32B27/08H01L31/048H01L31/049C08L67/02C08L23/06C08L23/12C08L71/02C08K3/34C08K5/29
Inventor 金亚东杨成翰周玉波裴旺
Owner NINGBO CHANGYANG TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com