Coating material, coating film, solar-cell-module backsheet, and solar-cell module

A coating and film coating technology, which is applied to electrical components, polyurea/polyurethane coatings, coatings, etc., can solve problems such as poor adhesion

Active Publication Date: 2014-07-30
DAIKIN IND LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The PVdF-based coating has poor adhesion to EVA alone as a sealing material because PVdF does not have functional groups.

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
  • Coating material, coating film, solar-cell-module backsheet, and solar-cell module
  • Coating material, coating film, solar-cell-module backsheet, and solar-cell module
  • Coating material, coating film, solar-cell-module backsheet, and solar-cell module

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0154] Under stirring, 223.2 parts by mass of curable TFE-based copolymer (Zeffle GK570 manufactured by Daikin Industries, Ltd., 65% by mass of solid content, 60 mgKOH / g of hydroxyl value, solvent: butyl acetate), titanium dioxide (DuPont) as a white pigment, 250 parts by mass of Ti-Pure R960 manufactured by the company and 126.8 parts by mass of butyl acetate were premixed, and then 780 parts by mass of glass beads with a diameter of 1.2 mm were charged and dispersed at 1500 rpm for 1 hour using a pigment disperser. Thereafter, glass beads were sieved with #80 mesh, and 269.2 parts by mass of a curable TFE-based copolymer (Zeffle GK570) was added to the solution to prepare a white paint.

[0155] In 100 parts by mass of the white paint, 20.8 parts by mass of a curing agent (Duranate K6000, manufactured by Asahi Kasei Chemical Co., Ltd., active methylene compound-blocked isocyanate of HDI) (with respect to the curable functional group in the curable TFE-based copolymer) was mix...

Embodiment 1

[0157] About the paint 1 obtained in the preparation example 1, the pot life was measured by the method shown below. The results are shown in Table 1.

[0158] (Applicable period)

[0159] Performed according to JIS K5600-2-6. Put the curable paint prepared in each preparation example into a polypropylene container with a volume of 100 ml, seal it, store it at 25° C., measure the viscosity in due course, and set the time until the viscosity reaches twice the initial value as the pot life.

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

No PUM Login to view more

Abstract

The purpose of the present invention is to provide the following: a coating material with dramatically improved pot life; a coating film obtained from said coating material; a solar-cell-module backsheet that includes said coating film; and a solar-cell module. The present invention is a coating material characterized by containing the following: a fluorine-containing polymer that contains a curable functional group; and a block isocyanate based on hexamethylene diisocyanate.

Description

technical field [0001] The present invention relates to a paint, a coating film, a back plate of a solar battery module and a solar battery module. More specifically, the present invention relates to a paint suitable for coating a back sheet of a solar cell module, a coating film obtained from the paint, and a back sheet of a solar cell module and a solar cell module having the coating film. Background technique [0002] A solar cell module generally consists of a surface layer, a sealing material layer that seals the solar cells, and a back sheet. As a sealing material forming the sealing material layer, a copolymer of ethylene and vinyl acetate (hereinafter also referred to as EVA.) is generally used. [0003] For the backsheet, various properties such as mechanical strength, weather resistance, water and moisture resistance, and electrical insulation are required. Usually, the back sheet is composed of a multi-layer structure, for example, from the side in contact with ...

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): C09D175/04H01L31/049
CPCC09D175/04C08G18/73C08G18/791H01L31/049Y02E10/50C09D127/18C08K5/29
Inventor 中川秀人午坊健司尾崎秀典浅野和哉匂坂重仁
Owner DAIKIN IND LTD
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