Polyolefin packaging film used for solar cell modules

A solar cell and polyolefin technology, applied in the direction of film/sheet without carrier, graft polymer adhesive, adhesive type, etc., can solve the problems of yellowing, photovoltaic module output power drop, etc., to prevent discoloration Effects of yellowing aging, reduction of residual monomer content, and improvement of long-lasting adhesive performance

Inactive Publication Date: 2019-01-22
CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under the action of long-term solar radiation, EVA will decompose and release acetic acid to corrode the battery

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
  • Polyolefin packaging film used for solar cell modules
  • Polyolefin packaging film used for solar cell modules
  • Polyolefin packaging film used for solar cell modules

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for preparing a polyolefin encapsulation film for solar cell modules,

[0021] (1) 91 parts of modified polyolefin resin, 0.5 parts of crosslinking agent, 0.8 parts of silane coupling agent, 0.12 parts of antioxidant, 0.12 parts of ultraviolet light absorber, 0.2 parts of light stabilizer, 0.02 parts of dispersant, initiator Add 0.01 parts of the agent into the stirring device, mix evenly, and then add it to the single-screw extruder for reaction extrusion. The extrusion temperature of the screw extruder is controlled at 80°C, and the screw speed is 20rpm, and then through extrusion, casting, Cooling to form a film, the modified polyolefin resin is an unsaturated polyolefin containing double bonds, wherein the double bonds account for 18% of the total weight of the unsaturated polyolefin; wherein, the initiator is selected from cumene hydroperoxide; the crosslinking agent Including the main cross-linking agent and cross-linking auxiliary agent, the cross-linkin...

Embodiment 2

[0024] A method for preparing a polyolefin encapsulation film for solar cell modules,

[0025] (1) 95 parts of modified polyolefin resin, 4.5 parts of crosslinking agent, 0.8 part of silane coupling agent, 0.12 part of antioxidant, 0.12 part of ultraviolet light absorber, 0.2 part of light stabilizer, 0.02 part of dispersant, initiator Add 0.01 parts of the agent into the stirring device, mix evenly, and then add it to the single-screw extruder for reaction extrusion. The extrusion temperature of the screw extruder is controlled at 80°C, and the screw speed is 20rpm, and then through extrusion, casting, Cooling to form a film, the modified polyolefin resin is an unsaturated polyolefin containing double bonds, wherein the double bonds account for 18% of the total weight of the unsaturated polyolefin; wherein, the initiator is selected from cyclohexanone peroxide, and the crosslinking agent includes The main cross-linking agent and cross-linking auxiliary agent, the cross-linkin...

Embodiment 3

[0028] A method for preparing a polyolefin encapsulation film for solar cell modules,

[0029] (1) 93 parts of modified polyolefin, 2.5 parts of crosslinking agent, 1.8 parts of silane coupling agent, 0.24 parts of antioxidant, 0.18 parts of ultraviolet light absorber, 0.5 parts of light stabilizer, 0.05 parts of dispersant, initiator Add 0.02 parts into the stirring device, mix evenly, and then add it to a single-screw extruder for reaction extrusion. Control the extrusion temperature of the screw extruder to 90°C, and the screw speed to 25rpm, and then pass extrusion, casting, and cooling Forming a film, the modified polyolefin resin is an unsaturated polyolefin containing double bonds, wherein the double bonds account for 20% of the total weight of the unsaturated polyolefin; wherein, the initiator is selected from cumene hydroperoxide and peroxide-2 -A mixture of tert-amyl ethylhexyl carbonate, the mass ratio of which is 1:1; the cross-linking agent includes a main cross-l...

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 invention belongs to the technical field of solar energy packaging material, and especially discloses a polyolefin packaging film used for solar cell modules. The polyolefin packaging film used for solar cell modules comprises, by mass, 91 to 95 parts of modified polyolefin, 0.5 to 4.5 parts of a crosslinking agent (a peroxide cross-linking agent and a tackifier), 0.8 to 2.8 parts of a silanecoupling agent, 0.12 to 0.36 part of an anti-oxidant, 0.12 to 0.25 part of an ultraviolet light absorbent, 0.2 to 0.8 part of a light stabilizing agent, 0.02 to 0.08 part of a dispersant, and 0.01 to0.03 part of an initiator. According to a preparation method, the anti-oxidant, the ultraviolet light absorbent, and the light stabilizing agent are added, so that excess heat oxidation degradation yellowing of an obtained composition in blending extrusion process are avoided, packaging film yellowing aging is prevented effectively from packaging film production process, the aging yellowing resistance of packaging film under solar light radiation in using process is improved, packaging film anti-aging time is prolonged, and the influences on photovoltaic assembly cell output power is reduce.

Description

technical field [0001] The invention belongs to the technical field of solar energy encapsulation materials, in particular to a polyolefin encapsulation film used for solar battery modules. Background technique [0002] Solar energy is a kind of clean energy. It hardly produces any pollution when it is developed and utilized. In addition, its reserves are nearly infinite. It is an ideal alternative energy source for human beings. In order to make full and effective use of solar energy, people have invented a variety of solar materials. According to performance and application, it can be roughly divided into photoelectric conversion materials, photothermal conversion materials, photochemical energy conversion materials and photochromic materials controlled by light energy. Photoelectric and photothermal conversion materials are the most widely used in people's daily life and production process. [0003] Solar photoelectric conversion materials, that is, solar cells, are bas...

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): C09J7/10C09J151/06C09J11/06
CPCC09J7/10C09J11/06C09J151/06C09J2203/322C09J2301/30C09J2301/408C08K5/3475C08K5/1345C08K5/132C08K5/524
Inventor 吕松
Owner CHANGZHOU SVECK PHOTOVOLTAIC NEW 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