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Color master batches for solar backboard film

A technology of solar back sheet film and masterbatch, applied in the field of color masterbatch, can solve the problems of low light transmittance and inability to meet performance requirements, etc.

Inactive Publication Date: 2015-07-01
江苏昊华光伏科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although this color masterbatch has a low light transmittance, this light transmittance still cannot meet the increasing performance requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Add 300g of titanium dioxide to the high-speed mixer, then add 500g of polyvinylidene fluoride, add 50g of CaCO 3 and 60g A1 2 o 3 , 50g of polymethyl methacrylate, 30g of low molecular weight polyethylene wax and 20g of ammonium perfluorooctanoate were stirred and mixed for 10 minutes, and then internally kneaded with a three-roll mixer at 80°C for 20 minutes. The banbury-mixed product was crushed with a crusher, and then extruded and granulated with a twin-screw extruder at 200°C.

[0018] The obtained color masterbatch is made into a solar back panel film, and its light transmittance is 17% after testing.

Embodiment 2

[0020] Add 400g of titanium dioxide to the high-speed mixer, then add 550g of polyvinylidene fluoride, add 45g of CaCO 3 and 50g A1 2 o 3 , 100g of polymethyl methacrylate, 150g of low molecular weight polyethylene wax and 100g of perfluorooctanoic acid ammonium were stirred and mixed for 10 minutes, and then banburyed for 20 minutes at 100°C with a three-roll internal mixer. The banbury-mixed product was crushed with a crusher, and then extruded and granulated with a twin-screw extruder at 180°C.

[0021] The obtained color masterbatch is made into a solar back panel film, and its light transmittance is 16% after testing.

Embodiment 3

[0023] Add 380g of titanium dioxide to the high-speed mixer, then add 500g of polyvinylidene fluoride, add 20g of CaCO 3 and 75g A1 2 o 3 , 50g of polymethyl methacrylate, 30g of low molecular weight polyethylene wax and 20g of ammonium perfluorooctanoate were stirred and mixed for 10 minutes, and then banburyed for 20 minutes with a three-roll internal mixer at 90°C. The banbury-mixed product was crushed with a crusher, and then extruded and granulated with a twin-screw extruder at 160°C.

[0024] The obtained color masterbatch is made into a solar back panel film, and its light transmittance is 17% after testing.

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Abstract

The invention discloses color master batches for a solar backboard film. The color master batches comprise the following components in percentage by weight: 50-55% of polyvinylidene fluoride, 5-10% of polymethyl methacrylate, 28-40% of inorganic titanium dioxide, 3-15% of low-molecular-weight polyethylene wax, 2-10% of a fluorine-containing active dispersant, and 5-8% of an anti-adhesive agent, wherein the addition of an adhesive agent is beneficial for improving the surface roughness of a film prepared in a later period to reduce the light transmittance of the film. CaCO3 in the adhesive agent is stable in the air, relatively good in covering power and helpful for reducing the light transmittance of the film.

Description

technical field [0001] The invention relates to a color masterbatch, in particular to a color masterbatch for a solar back panel film. Background technique [0002] Our unit's invention patent CN102516691A discloses a manufacturing method of a special white masterbatch for polyvinylidene fluoride solar backplane film. In this method, a color masterbatch is disclosed, which uses low-molecular-weight polyethylene wax to inhibit the absorption of inorganic titanium dioxide. The characteristics of better adsorption and the fluorine-containing active dispersant have good properties of modification and mixing and dispersion on polyvinylidene fluoride molecules. First, low molecular weight polyethylene wax and fluorine-containing active dispersant are used to treat inorganic titanium dioxide to improve the inorganic The affinity and dispersibility of titanium dioxide with polyvinylidene fluoride and polymethyl methacrylate, and then melted with part of polyvinylidene fluoride, extr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/16C08L33/12C08K13/02C08K3/22C08K3/26C08K5/19C08J3/22H01L31/049
CPCY02E10/50C08L27/16C08J3/226C08J2427/16C08L2203/16C08L2203/204C08L2205/03C08L2310/00C08L33/12C08L23/06C08K13/02C08K2003/2241C08K2003/265C08K2003/2227C08K5/19
Inventor 龚福根
Owner 江苏昊华光伏科技有限公司