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PCTFE coating material with high water vapor barrier property and preparation method thereof

A PCTFE, water vapor barrier technology, applied in the coating and other directions, can solve problems such as cracking, and achieve the effects of strong water vapor barrier, high adhesion, and excellent adhesion

Inactive Publication Date: 2015-02-18
WUXI SUNOCEAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Water vapor will attack the underlying PET film through the base resin in the coating and the small cracks in the coating, so that the PET will be degraded and cracked quickly, and this type of backsheet will crack severely during strong humidity and heat aging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The high water vapor barrier PCTFE coating of the present embodiment is made from the following raw materials in parts by weight: 50 parts of PCTFE, 10 parts of methyl acrylate, 13 parts of trifluoroethyl methacrylate, 5 parts of toluene diisocyanate, 7 parts of hydroxyethyl acrylate Parts, 4 parts of azobisisobutyronitrile, 3 parts of triethylamine, 4 parts of acrylate, 5 parts of dipropylene glycol methyl ether, 2 parts of leveling agent, 2 parts of KH550, 3 parts of polydimethylsiloxane, poly 1 part of 3-methylthiophene.

[0018] The alkenoic acid is acrylic acid.

[0019] The said leveling agent is propylene glycol methyl ether acetate.

[0020] The high water vapor barrier PCTFE coating of this embodiment includes the following steps: weighing each raw material according to the weight ratio, adding it to the reaction kettle, opening the reaction kettle and stirring at 88°C for 2.5 hours, then cooling to room temperature and discharging, the obtained product .

Embodiment 2

[0022] The high water vapor barrier PCTFE coating of this embodiment is made from the following raw materials in parts by weight: 60 parts of PCTFE, 14 parts of methyl acrylate, 17 parts of trifluoroethyl methacrylate, 9 parts of toluene diisocyanate, and 11 parts of hydroxyethyl acrylate. Parts, 8 parts of azobisisobutyronitrile, 6 parts of triethylamine, 8 parts of acrylate, 9 parts of dipropylene glycol methyl ether, 5 parts of leveling agent, 5 parts of KH550, 6 parts of polydimethylsiloxane, poly 4 parts of 3-methylthiophene.

[0023] The alkenoic acid is methacrylic acid.

[0024] The said leveling agent is propylene glycol methyl ether acetate.

[0025] The high water vapor barrier PCTFE coating of this embodiment comprises the following steps: weighing each raw material according to the weight ratio, adding it to the reaction kettle, opening the reaction kettle and stirring at 88°C for 3 hours, then cooling to room temperature and discharging, the obtained product .

Embodiment 3

[0027] The high water vapor barrier PCTFE coating of the present embodiment is made from the following raw materials in parts by weight: 53 parts of PCTFE, 11 parts of methyl acrylate, 14 parts of trifluoroethyl methacrylate, 6 parts of toluene diisocyanate, 8 parts of hydroxyethyl acrylate Parts, 5 parts of azobisisobutyronitrile, 4 parts of triethylamine, 5 parts of acrylate, 6 parts of dipropylene glycol methyl ether, 3 parts of leveling agent, 3 parts of KH550, 4 parts of polydimethylsiloxane, poly 2 parts of 3-methylthiophene.

[0028] The enoic acid is undecylenic acid.

[0029] The said leveling agent is propylene glycol methyl ether acetate.

[0030] The high water vapor barrier PCTFE coating of this embodiment comprises the following steps: weighing each raw material according to the weight ratio, adding it to the reaction kettle, opening the reaction kettle and stirring at 80°C for 2.5 hours, then cooling to room temperature and discharging, the obtained product . ...

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Abstract

The invention discloses a PCTFE coating material with high water vapor barrier property and a preparation method thereof. The coating material is prepared from the following raw materials in parts by weight: 50-60 parts of PCTFE, 10-14 parts of methyl acrylate, 13-17 parts of trifluoroethyl methacrylate, 5-9 parts of toluene diisocyanate, 7-11 parts of hydroxyethyl acrylate, 4-8 parts of azodiisobutyronitrile, 3-6 parts of triethylamine, 4-8 parts of gadoleic acid, 5-9 parts of dipropylene glycol methylether, 2-5 parts of leveling agent, 2-5 parts of KH550, 3-6 parts of polydimethylsiloxane and 1-4 parts of poly-3-methylthiophene. The coating material disclosed by the invention has the characteristics of good weather resistance, strong water vapor barrier property and high adhesion and can form excellent adaptation to a sealing material, particularly EVA, in a solar cell assembly. The coating material is simple in production process, low in production cost, easy in transportation and storage and easy in industrial production and is environment-friendly, thereby having market application values.

Description

technical field [0001] The invention relates to a high water vapor barrier PCTFE coating and a preparation method thereof. Background technique [0002] With the gradual reduction of non-renewable resources and various pollution problems caused by the production and use of mineral resources, countries are using policy and legal means to gradually increase the development and utilization of renewable energy and clean energy, and strive to improve Its share of total energy use. Among these clean and renewable energy sources, solar energy is one of the most important energy sources. Solar photovoltaic power generation is increasingly becoming a part of our lives. The national 12th Five-Year Plan sets the total installed capacity at 15GW in 2015, which indicates that part of our daily electricity consumption will quietly become from solar energy generation. For the photovoltaic power generation industry, it is necessary to reduce costs while continuously improving technology....

Claims

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Application Information

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IPC IPC(8): C09D151/00C09D5/00C09D7/12C08F259/08C08F220/14C08F220/22C08F220/28C08F220/06C08F220/64
CPCC09D151/00C08F220/22C08F259/08C08L2201/14C09D5/00C09D7/40C08L83/04C08L65/00C08K5/544C08K5/06C08F220/14C08F220/28C08F220/06C08F220/64
Inventor 黄新东刘天人
Owner WUXI SUNOCEAN
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