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Photovoltaic glass film coating liquid and preparation method thereof

A photovoltaic glass and coating solution technology, applied in the coating and other directions, can solve the problems of easy weathering and shedding, poor durability of the coating solution, etc., and achieve the effects of not easy powdering and shedding, good light transmittance, and improved photoelectric conversion rate.

Inactive Publication Date: 2019-03-12
安徽兆拓新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The anti-reflection film prepared by the anti-reflection coating solution of the present invention has high anti-reflection rate, good wear resistance, high pencil hardness, and good salt spray resistance, but the coating solution of the present invention has poor durability and is easy to weather and fall off

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A photovoltaic glass coating solution, comprising the following raw materials in parts by weight:

[0037] 50 parts of acrylic resin, 8 parts of phenyltrimethoxysilane, 4 parts of polyvinyl alcohol, 4 parts of modified nano-silica, 100 parts of organic alcohol solvent, 1.5 parts of N-methylpyrrolidone, 1 part of crosslinking agent, catalyst 0.8 parts and 1.6 parts of silane coupling agent;

[0038] The organic alcohol solvent is butanol;

[0039] The catalyst is potassium persulfate.

[0040] The preparation method of modified nano silicon dioxide is as follows:

[0041] (1) Place the nano-silica in a ball mill and grind it for 2 hours according to a ball-to-material ratio of 1:5, then add 5% hydrochloric acid aqueous solution, and ultrasonically disperse evenly to prepare a silica sol;

[0042] (2) Put the polymer material in ethanol and stir to dissolve and disperse evenly. Then, under stirring at 400 rpm, slowly drop the silica sol into the polymer ethanol solutio...

Embodiment 2

[0055] A photovoltaic glass coating solution, comprising the following raw materials in parts by weight:

[0056] 60 parts of acrylic resin, 15 parts of phenyltrimethoxysilane, 9 parts of polyvinyl alcohol, 9 parts of modified nano-dioxide, 120 parts of organic alcohol solvent, 5 parts of N-methylpyrrolidone, 3 parts of crosslinking agent, 1.8 parts of catalyst part and 3.5 parts of silane coupling agent;

[0057] The organic alcohol solvent is ethanol;

[0058] The catalyst is potassium persulfate.

[0059] The preparation method of modified nano silicon dioxide is as follows:

[0060] (1) Place the nano-silica in a ball mill and grind it for 4 hours according to a ball-to-material ratio of 1:5, then add 5% hydrochloric acid aqueous solution, and ultrasonically disperse evenly to prepare a silica sol;

[0061] (2) After the polymer material is placed in ethanol and stirred to dissolve and disperse evenly, under stirring at 500 rpm, slowly drop the silica sol into the polym...

Embodiment 3

[0074] A photovoltaic glass coating solution, comprising the following raw materials in parts by weight:

[0075] 53 parts of acrylic resin, 10 parts of phenyltrimethoxysilane, 5 parts of polyvinyl alcohol, 6 parts of modified nano-silica, 108 parts of organic alcohol solvent, 2.5 parts of N-methylpyrrolidone, 1.6 parts of crosslinking agent, catalyst 1.2 parts and 2.2 parts of silane coupling agent.

[0076] The organic alcohol solvent is n-propanol;

[0077] The catalyst is potassium persulfate.

[0078] The preparation method of modified nano silicon dioxide is as follows:

[0079] (1) Place the nano-silica in a ball mill and grind it for 3.8 hours according to a ball-to-material ratio of 1:5, then add 5% hydrochloric acid aqueous solution, and ultrasonically disperse evenly to prepare a silica sol;

[0080] (2) Put the polymer material in ethanol and stir to dissolve and disperse evenly. Then, under stirring at 480 rpm, slowly drop the silica sol into the polymer ethano...

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Abstract

The invention discloses photovoltaic glass film coating liquid and a preparation method thereof, and relates to the field of glass film coating liquid. The photovoltaic glass film coating liquid is prepared from the following raw materials in parts by weight: 50-60 parts of acrylic resin, 8-15 parts of phenyltrimethoxysilane, 4-9 parts of polyvinyl alcohol, 4-9 parts of modified nano silicon dioxide, 100-120 parts of an organic alcohol solvent, 1.5-5 parts of N-methyl pyrrolidone, 1-3 parts of a cross-linking agent, 0.8-1.8 parts of a catalyst and 1.6-3.5 parts of a silane coupling agent. According to the photovoltaic glass film coating liquid and the preparation method thereof provided by the invention, the acrylic resin in the film coating liquid is grafted with the phenyltrimethoxysilane under the action of the cross-linking agent and the catalyst, so that weather resistance of the acrylic resin is improved; further, the action of the polyvinyl alcohol is utilized, so that cohesiveness of the film coating liquid is improved; and through excellent light transmittance of the film coating liquid, a photoelectric conversion rate of photovoltaic glass can be improved.

Description

technical field [0001] The invention relates to the field of glass coating liquid, in particular to a photovoltaic glass coating liquid and a preparation method thereof. Background technique [0002] In the prior art, the photoelectric conversion of solar energy in solar cell modules is generally realized through the absorption of solar energy spectrum by silicon wafers. With the improvement of process technology, the photoelectric conversion efficiency of silicon wafers has reached the limit, and it is difficult to further improve it. How to improve the light transmittance of the photovoltaic glass substrate used as the cover material in the solar cell module, so that more solar light can reach the silicon wafer and be absorbed, thereby improving the photoelectric conversion efficiency, has become the focus of attention in this field. question. [0003] Due to the high light transmittance and strong light absorption ability of solar ultra-clear embossed glass, and under v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D129/04C09D7/62C09D7/63C03C17/00
CPCC03C17/009C08K2201/011C09D7/62C09D7/63C09D133/04C08L29/04C08K13/06C08K9/10C08K3/36C08K5/5419
Inventor 陆志鹏
Owner 安徽兆拓新能源科技有限公司
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