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PET (Polyethylene Terephthalate) film fluorocarbon coating, preparation method and application thereof

A technology for fluorocarbon coatings and membranes, applied in coatings, devices for coating liquid on surfaces, photovoltaic power generation, etc., can solve problems such as high production costs and complicated processes, and achieve low cost, simple production processes, and good water resistance The effect of vapor permeability

Active Publication Date: 2013-11-06
广德衡峰新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The general production process of TPT polyvinyl fluoride composite film is to use hot melt adhesive as adhesive, and to bond PVF film on both sides of PET. The process is relatively complicated and the production cost is relatively high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) 29.7 parts by weight of solvent propylene glycol methyl ether acetate (PMA) is placed in the container, and 50 parts by weight of FEVE fluorocarbon resin and 0.3 parts by weight of anti-settling agent BYK104S ( Purchased from German BYK Chemical Company), 5 parts by weight of wetting and dispersing agent BYK170 (purchased from German BYK Chemical Company) and 15 parts by weight of pigment carbon black, after stirring evenly, add 120 parts by weight of glass beads, at 2000 rpm Grinding at a high speed at a high speed to a fineness of 25 μm to obtain a color paste;

[0028] (2) 25 parts by weight of FEVE fluorocarbon resin and 10 parts by weight of amino resin are placed in a container, and 14 parts by weight of solvent butyl acetate and 0.5 parts by weight of auxiliary agent BYK358 ( Purchased from German BYK Chemical Company), 0.5 parts by weight of matting powder ED30 (purchased from U.S. Grace Company) and 50 parts by weight of the color paste obtained in step (1)...

Embodiment 2

[0034] (1) 14.5 parts by weight of solvent propylene glycol methyl ether acetate (PMA) is placed in the container, and 30 parts by weight of FEVE fluorocarbon resin and 0.5 parts by weight of anti-settling agent BYK104S ( Purchased from German BYK Chemical Company), 5 parts by weight of wetting and dispersing agent BYK170 (purchased from German BYK Chemical Company) and 50 parts by weight of pigment rutile titanium dioxide, after stirring evenly, add 100 parts by weight of glass beads, at 2000 rpm Grind at a high speed at a minute speed to a fineness of 20 μm to obtain a color paste;

[0035] (2) Put 30 parts by weight of FEVE fluorocarbon resin and 10 parts by weight of amino resin in a container, and then add 9 parts by weight of solvent butyl acetate and 0.5 parts by weight of additives under low-speed stirring at a speed of 400 to 500 rpm. After BYK358 (purchased from German BYK Chemical Company), 0.5 parts by weight of matting powder ED30 (purchased from American Grace Co...

Embodiment 3

[0040] 70 parts by weight of FEVE fluorocarbon resin and 15 parts by weight of amino resin were placed in a container, and 14.5 parts by weight of solvent butyl acetate and 0.5 parts by weight of auxiliary agent BYK358 (purchased in Germany BYK Chemical Co., Ltd.), dispersed at a high speed of 1500 rpm for 18 minutes, and filtered to obtain a black matte fluorocarbon coating for PET film.

[0041] The black matte fluorocarbon coating for PET film obtained in this example was tested for overall performance according to the standard HG / T 3792-2005 cross-linked fluororesin coating (Type II). The results are shown in Table 3.

[0042] Table 3 Example 3 Gained PET film inspection performance test with black matte fluorocarbon coating

[0043] serial number

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PUM

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Abstract

The invention discloses a PET (Polyethylene Terephthalate) film fluorocarbon coating, a preparation method and application thereof. The preparation method of the coating comprises the steps of: 1, placing a solvent a into a container, sequentially adding PEVE fluorocarbon resin, an anti-settling agent, a wetting dispersing agent and pigment under the condition of stirring at a low speed; after stirring uniformly, sequentially adding glass beads, grinding at a high speed to obtain color paste; 2, placing the PEVE fluorocarbon resin and amino resin into the container, sequentially adding a solvent b, an assisting agent, flatting powder and the color paste obtained in the step 1 under the condition of stirring at a low speed, dispersing at a high speed, and filtering to obtain the PET film fluorocarbon coating. The coating can be applied to preparing a PET coating film; and the obtained PET coating film has better protective functions of steam permeating resistance, weather resistance, insulation property and the like, and ensures that a solar cell panel has long-term service life.

Description

technical field [0001] The invention belongs to the technical field of solar battery backplane preparation, and in particular relates to a fluorocarbon coating for PET film and its preparation method and application. Background technique [0002] Today, solar cell products are used in many industries due to their advantages in energy saving, environmental protection, and long service life. The service life of such products is generally designed to be more than 25 years. To ensure such a long service life of the product, it is necessary to strictly control the quality of each component, and the role of the solar battery backplane cannot be underestimated. The solar battery backplane plays a protective role The role of cells in photovoltaic modules. One of the important indicators to measure the performance of the solar cell backsheet is the water vapor permeability. If the performance of the solar backsheet is poor in blocking water vapor penetration, the moisture in the ai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D127/12C09D161/20C09D7/12B32B33/00B05C1/08B05C9/14H01L31/048
CPCY02E10/50
Inventor 刘谦李桂友吴国力
Owner 广德衡峰新型建材有限公司