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Preparation method of special material for fluorine-containing plastic film

A technology of plastic film and special material, applied in the field of fluoroplastic film, can solve the problems of water vapor barrier, low thermal shrinkage, unsuitable for large-scale promotion, high thermal shrinkage, and achieve low water vapor transmission rate, excellent weather resistance, Excellent performance

Inactive Publication Date: 2012-02-01
刘波
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, THV and ECTFE have high raw material costs and are not suitable for large-scale promotion.
However, pure PVDF raw materials also have difficulties in film formation, easy warping and deformation after film formation, and high thermal shrinkage. Therefore, it is urgent to modify pure PVDF raw materials to develop a high tensile strength, high moisture barrier, and high weather resistance. Polyvinylidene fluoride film special material for solar battery backsheet with high performance and low heat shrinkage

Method used

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  • Preparation method of special material for fluorine-containing plastic film

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Embodiment Construction

[0015] The following implementation examples are to further illustrate the present invention, and the present invention is not limited to the following examples and implementation methods.

[0016] Examples 1, 2, 3, and 4 are four different special material formulas, listed in Table 1. The raw materials used in the embodiment are as follows:

[0017] Polyvinylidene fluoride (PVDF): SOLEF 1001, Solvay, USA

[0018] Polymethyl methacrylate (PMMA): 6N, Evonik

[0019] Titanium dioxide (Ti0 2 ): R-103, DuPont, USA

[0020] Calcium carbonate (CaCO 3 , Nanometer level): NPCC-201, Shanxi Ruicheng Xintai Nano Material Co., Ltd.

[0021] Dioctyl phthalate (DOP): Electrical grade DOP, Shandong Qilu Plasticizer Co., Ltd.

[0022] Heat stabilizer: antioxidant Irganox 1010, Ciba Chemical Co., Ltd.

[0023] The formulations of Examples 1 to 4 are shown in Table 1.

[0024] Table 1 Examples 1 to 4 formula (parts by weight: %)

[0025] raw material name

[0026] According to the formula in Table 1, wei...

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Abstract

The invention relates to a preparation method of a special material for a fluorine-containing plastic film. The formula of the special material is: 50-85 weight portions of polyvinylidene fluoride, 5-30 weight portions of reinforced resin, 5-15 weight portions of inorganic filler, 5-15 weight portions of nano filler, 0.5-5 weight portion(s) of mobile modifier, and 0.1-2 portion(s) of thermal stability additive. Particles of the special material can be prepared via adding of the raw materials into a mixing and blending machine, mixing for 10-40 minutes at the speed of 50-1000 rounds per minute at the room temperature, melting and extrusion at the temperature of 170-230 DEG C through a double-screw extruder, cooling, drying and pelletization. The follow-up film processing with the special material as a raw material has the advantages of good melt mobility, high production yield, high equipment applicability and the like. Meanwhile, the produced fluorine-containing plastic film has excellent vapor blocking performance, high tear strength, good weathering resistance and good acid resistance and alkali resistance and can completely meet the performance requirements of films on protective layers in packaging backplanes of solar cells.

Description

Technical field [0001] The invention relates to a method for preparing a special material for a fluorine-containing plastic film. The special material is especially used for producing a fluorine plastic film with excellent weather resistance, low water vapor transmission rate and excellent mechanical properties. Background technique [0002] Polyvinylidene fluoride (PVDF) is an important member of the fluoroplastics family, but due to its poor fluidity, it is difficult to melt process and form films. On the other hand, polyvinylidene fluoride has outstanding high and low temperature resistance, chemical corrosion resistance, weather resistance, and excellent electrical insulation. It has been used in many fields of industry and civil use. These excellent properties of polyvinylidene fluoride are just enough to meet solar cells. The requirements for the protective film of the package backplane film. One of the technical problems to be solved by the present invention is to researc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/16C08L33/12C08K13/02C08K3/36C08K3/22C08K3/26C08K3/30C08K5/12C08K5/521H01L31/048
CPCY02E10/50
Inventor 刘波
Owner 刘波
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