Unlock instant, AI-driven research and patent intelligence for your innovation.

Hot melt adhesive and preparation method thereof, reflective strip, solar panel

A hot-melt adhesive and reactive technology, applied in the field of solar power generation, can solve the problems affecting the performance and service life of reflective strips and solar panels, small peeling force, poor flatness, etc., and achieve high photoelectric conversion efficiency, high peeling force, The effect of long service life

Active Publication Date: 2019-12-24
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The EVA adhesive layer in the reflective strip of the existing solar panel has a small peeling force, is prone to yellowing, and has poor flatness, which affects the performance and service life of the reflective strip and solar panel

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
  • Hot melt adhesive and preparation method thereof, reflective strip, solar panel
  • Hot melt adhesive and preparation method thereof, reflective strip, solar panel
  • Hot melt adhesive and preparation method thereof, reflective strip, solar panel

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0038] Some embodiments of the present invention also relate to a method for preparing a hot melt adhesive, which includes: mixing and co-extruding a modified thermoplastic polyurethane elastomer, an ethylene-vinyl acetate copolymer, a heat stabilizer and an inorganic filler.

[0039] According to some embodiments, the compound feed is co-extruded by a co-extruder.

[0040] Some embodiments of the present invention also relate to a method for preparing a hot melt adhesive, comprising:

[0041] a. Preparation of modified thermoplastic polyurethane elastomer.

[0042] The reaction type ultraviolet absorber, polyester polyol and chain extender are mixed, heated and heated, and then vacuum degassed. After the mixture after vacuum defoaming is cooled, mixed with isocyanate in an inert gas and slightly positive pressure environment, and then vacuum defoaming is performed. The mixture obtained by vacuum degassing was aged.

[0043] b. Blend the modified thermoplastic polyurethane ...

Embodiment 1

[0058] The various raw material components of a hot melt adhesive provided in this embodiment include 15 parts by weight of modified thermoplastic polyurethane elastomer, 75 parts of ethylene-vinyl acetate copolymer, 0.6 part of dibutyltin dilaurate and calcium carbonate 1.2 servings.

[0059] Among them, the raw material ratio of the modified thermoplastic polyurethane elastomer is: 0.9 part of 2-hydroxy-4-(2-hydroxy-3-decyloxypropoxy) benzophenone, 307 parts of polyethylene adipate parts, 30 parts of 1,4-butanediol, and 121 parts of hexamethylene diisocyanate.

[0060] The present embodiment also provides a method for preparing the above-mentioned hot melt adhesive, which includes:

[0061] First, weigh polyethylene adipate, 1,4-butanediol, and 2-hydroxy-4-(2-hydroxy-3-decyloxypropoxy) benzophenone according to the above formula. In the reactor, stir at a rotating speed of 1000r / min, heat up to 115°C, defoaming for 2h at a vacuum degree of -0.09MPa, and cool down when the ...

Embodiment 2

[0065] The various raw material components of a hot melt adhesive provided in this embodiment include 13 parts by weight of modified thermoplastic polyurethane elastomer, 78 parts of ethylene-vinyl acetate copolymer, 0.1 part of dibutyltin dilaurate and calcium carbonate 0.5 servings.

[0066] Among them, the raw material ratio of the modified thermoplastic polyurethane elastomer is: 0.5 part of 2-hydroxy-4-(2-hydroxy-3-decyloxypropoxy) benzophenone, 280 parts of polyethylene adipate parts, 25 parts of 1,4-butanediol, and 110 parts of hexamethylene diisocyanate.

[0067] The present embodiment also provides a method for preparing the above-mentioned hot melt adhesive, which includes:

[0068] First, weigh polyethylene adipate, 1,4-butanediol, and 2-hydroxy-4-(2-hydroxy-3-decyloxypropoxy) benzophenone according to the above formula. In the reactor, stir at a rotation speed of 800 r / min, heat up to 112 °C, defoaming for 1.5 h at a vacuum degree of -0.1 MPa, and cool down when ...

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 specifically relates to a hot-melt adhesive, belonging to the technical field of solar power generation. The hot-melt adhesive is prepared from at least the following raw materials: an ethylene-vinyl acetate copolymer and a modified thermoplastic polyurethane elastomer prepared from a reactive UV absorber, polyester polyol, a chain extender and isocyanate. The invention also relates to a preparation method for the hot-melt adhesive. The preparation method comprises a step of subjecting the modified thermoplastic polyurethane elastomer and the ethylene-vinyl acetate copolymer to mixing and co-extrusion. The invention also relates to a reflective stripe. The reflective stripe comprises a prismatic lens, wherein the substrate of the prismatic lens is coated with the hot-melt adhesive. The invention also relates to a solar panel. The upper layer of the main grid line of the solar panel is provided with the reflective stripe. The effects of good peel strength, yellowing resistance and good anti-shrinkage performance are obtained as the hot melt adhesive is applied onto the prismatic lens of the reflective stripe, so the reflective stripe is allowed to have better reflection performance and long service life; and thus, the solar panel provided with the reflective stripe has higher photoelectric conversion efficiency.

Description

technical field [0001] The invention relates to the technical field of solar power generation, in particular to a hot melt adhesive and a preparation method thereof, as well as a reflective strip and a solar panel. Background technique [0002] Solar power generation technology has the advantages of being renewable and environmentally friendly, and has been greatly promoted. As far as China is concerned, according to the scale development indicators provided by the National Energy Administration, by the end of 2020, the installed capacity of solar power generation in my country is expected to reach 160 million kilowatts, and the annual power generation will reach 170 billion kilowatt hours. However, due to the low photoelectric conversion efficiency (about 20%) of solar power generation technology, there is still a problem of high power generation cost. Therefore, how to improve the photoelectric conversion rate is an eternal topic of solar photovoltaic technology. It main...

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): C09J123/08C09J175/06C09J11/04C09J11/06H01L31/048H01L31/054C08G18/73C08G18/66C08G18/42C08G18/32
CPCC08G18/3206C08G18/4238C08G18/664C08G18/73C08G2170/20C08K2003/265C08L2201/08C08L2207/04C09J11/04C09J11/06C09J123/0853H01L31/0481H01L31/0547C08L75/06C08K3/26C08K5/132Y02E10/52
Inventor 李长顺肖伟韩静
Owner ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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