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Nano-zinc oxide protection introduced packaging material and preparation method thereof

A technology of nano-zinc oxide and packaging materials, which is applied in the direction of radiation-absorbing coatings and coatings, which can solve problems affecting light transmittance and performance, and improve the ability to resist ultraviolet radiation, water vapor barrier, and environmental aging Effect

Active Publication Date: 2021-08-10
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a packaging material introduced with nano-zinc oxide protection and used as a solar battery backplane to solve the problem in the prior art that the deterioration of titanium dioxide in the solar battery backplane affects light transmittance and performance

Method used

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  • Nano-zinc oxide protection introduced packaging material and preparation method thereof
  • Nano-zinc oxide protection introduced packaging material and preparation method thereof
  • Nano-zinc oxide protection introduced packaging material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1: Preparation of encapsulation material of titanium dioxide single coating

[0043] Mix 5g of polybutylmethacrylate, 4g of titanium dioxide, 0.2g of barium sulfate and 50mg of graphene evenly, and add them into a reaction kettle containing a stirrer and a reflux condenser. Add zirconium beads with a volume ratio of 0.5, and grind at a speed of 4000 r / min. When the fineness of the color paste is less than 10 μm, use a filter to filter to obtain the desired color paste.

[0044] 40g of fluorocarbon resin, 35g of acrylic resin, 4g of isocyanate, 1g of propylene glycol methyl ether acetate (PGMEA), 0.4625g of the color paste prepared above, 5g of polyvinylpyrrolidone, 2g of epoxy resin, 2g of polydimethylsiloxane, Put 0.8g of stannous octoate and 10g of absolute ethanol into a reaction kettle containing a stirrer, and disperse for 10 minutes at a stirring speed of 3000r / min to obtain solar battery backsheet coating 1, which is coated with a scraper or casting te...

Embodiment 2

[0046]Embodiment 2: Preparation of encapsulation material introducing nano-zinc oxide protection double-layer coating

[0047] Mix 5g of polybutylmethacrylate, 4g of nano-zinc oxide, 0.2g of barium sulfate and 50mg of graphene evenly, and add them into a reaction kettle containing a stirrer and a reflux condenser. Add zirconium beads with a volume ratio of 0.5, and grind at a speed of 4000 r / min. When the fineness of the color paste is less than 5 μm, use a filter to filter to obtain the required color paste.

[0048] 40g of fluorocarbon resin, 35g of acrylic resin, 4g of isocyanate, 1g of propylene glycol methyl ether acetate (PGMEA), 0.4625g of the color paste prepared above, 5g of polyvinylpyrrolidone, 2g of epoxy resin, 2g of polydimethylsiloxane, Put 0.8g of stannous octoate and 10g of absolute ethanol into a reaction kettle containing a stirrer, and disperse for 10 minutes at a stirring speed of 3000r / min to obtain solar battery backsheet coating 2, which is coated with ...

Embodiment 3

[0050] Example 3: Performance comparison of packaging materials with different coating treatments

[0051] Using an ultraviolet-visible-near-infrared spectrophotometer, the transmittances of the two different packaging materials obtained in the above examples to light of different wavelengths were studied.

[0052] image 3 The transmittance of the packaging material with a single coating of titanium dioxide and the packaging material with a double coating of nano-zinc oxide protection to light with a wavelength of 300-1100nm can be seen from the results in the figure. The transmittance of the material to ultraviolet rays is lower, indicating that the introduction of nano-zinc oxide absorbs more ultraviolet rays to achieve the protective effect on the inner layer of titanium dioxide; Figure 4 In order to introduce the difference histogram of the transmittance of the double-coated packaging material protected by nano-zinc oxide and the single-coated titanium dioxide to the li...

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Abstract

The invention discloses a nano-zinc oxide protection introduced packaging material and a preparation method thereof, and the packaging material comprises a nano-zinc oxide resin layer, a titanium dioxide resin layer and a substrate. The preparation method mainly comprises the following steps: (1) uniformly mixing fluorocarbon, acrylic resin, isocyanate, propylene glycol methyl ether acetate (PGMEA), first color paste containing titanium dioxide, a dispersing agent, epoxy resin, a flatting agent, a catalyst and a solvent, coating a PET film with the mixture, and drying; and (2) uniformly mixing fluorocarbon, acrylic resin, isocyanate, PGMEA, second color paste containing nano-zinc oxide, a dispersing agent, epoxy resin, a flatting agent, a catalyst and a solvent, uniformly coating the film coating obtained in the step (1) with the mixture, and drying to obtain the packaging material introducing nano-zinc oxide protection. The introduced nano zinc oxide absorbs high-energy ultraviolet rays to protect the titanium dioxide in the inner layer, and in addition, due to the addition of the anti-reflection resin, the transmittance of the film to light of other wave bands is increased, and the light utilization rate is improved.

Description

technical field [0001] The invention relates to the field of solar battery backplanes, in particular to a packaging material introduced with nano-zinc oxide protection and a preparation method and application thereof. Background technique [0002] The solar cell backsheet is a packaging material located on the back of the solar cell module. With its unique properties such as high and low temperature resistance, ultraviolet radiation resistance, environmental aging resistance, water vapor barrier, and electrical insulation, it is used to protect solar energy in outdoor environments. The battery module resists the erosion of EVA film, battery sheet and other materials by environmental factors such as light, humidity and heat, and plays a role of weather resistance and insulation protection. [0003] Nano-TiO 2 It can absorb, reflect, and scatter ultraviolet rays, and is usually added to the coating of the solar cell backplane to improve the physical properties of the coating,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/048C08L67/02C09D5/32C09D127/12C09D133/04C09D7/61
CPCC08J7/042C08J7/048C09D127/12C09D5/32C09D7/61C08J2367/02C08J2427/12C08J2433/04C08K2003/2296C08K2003/2241C08K2201/011C08L33/04C08K3/22
Inventor 孙宝全姜聪慧张国华宋涛李雅娟
Owner SUZHOU UNIV
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