Coating composition for enhancing light transmittance and coating layer formed therefrom

A composition and coating technology, applied in the directions of coatings, optics, optical components, etc., can solve the problems of unfavorable production and high manufacturing costs, and achieve the effects of cost saving, simple manufacturing process, and simplified preparation steps.

Active Publication Date: 2017-02-22
ETERNAL MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology requires sophisticated manufacturing techniques and high manufacturing costs, which is not conducive to large-scale production

Method used

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  • Coating composition for enhancing light transmittance and coating layer formed therefrom
  • Coating composition for enhancing light transmittance and coating layer formed therefrom
  • Coating composition for enhancing light transmittance and coating layer formed therefrom

Examples

Experimental program
Comparison scheme
Effect test

preparation example

[0058] The siloxane monomer / oligomer, the first SiO 2 The particle aqueous solution and the solvent were pre-mixed and stirred according to the ratio (gram weight) shown in Table 1, heated to 75±2°C with nitrogen gas and reacted for 6 hours to prepare compositions a to e.

[0059] Table 1

[0060]

[0061]

[0062] Note 1 Total solid content: that is, the ratio (weight ratio) of all solid content to the composition. For example, take the composition and weigh it, and record its actual weight as a (total weight), heat it to remove the solvent (for example, for 1 gram of the composition, heat it on a heating plate at 150°C for 30 minutes) and then weigh it again The weight is b (total weight of solid parts), and b / a is the total solid content (%).

[0063] Note 2 SiO 2 / Total solid content: namely SiO 2 The ratio of solid content to total solid content (%), taking composition a as an example, the first SiO 2 The weight of solids in the particle aqueous solution is 178...

Embodiment 1

[0101] The first SiO in embodiment 1, 8 and 9 2 particles with the second SiO 2 The particle ratio is similar (11.4~11.5), and Example 1 does not contain TiO 2 Particles, Example 8 and 9 add TiO 2 (Particle size less than 70nm). The penetrations obtained in Examples 1, 8 and 9 are 108.6%, 107.4% and 106.6% respectively.

Embodiment 10

[0102] The composition and ratio of Example 10 and Comparative Example 14 are similar, however, Comparative Example 14 uses TiO with a particle size greater than 70nm 2 particle. The penetrations obtained in Example 10 and Comparative Example 14 were 103.3% and 100.2%, respectively. It can be seen that TiO 2 Too many particles will affect the effect of light penetration.

[0103] As can be seen from the aforementioned results, the present invention can be added with or without adding TiO 2 Particle implementation. Use TiO 2 Although the particles will affect the light penetration effect, but the control of TiO 2 The particle size of the particles in the appropriate range (less than 70nm) can still achieve the effect of increasing light penetration and can be used by TiO 2 The particles provide self-cleaning properties.

[0104] TiO 2 Effect of particle addition on coating properties:

[0105] The composition and proportion of embodiment 10 and comparative example 13 ar...

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Abstract

The present invention relates to a coating composition, including: (A) a polysiloxane resin including units derived from siloxane monomers, siloxane oligomers or a combination thereof; (B) inorganic particles including first SiO2 particles having a particle size ranging from 15 nm to 100 nm, and second SiO2 particles having a particle size ranging from 3 nm to < 15 nm. The present invention also relates to a light transmittance enhancing coating layer formed by said coating composition. The present invention introduces more pores to the coating layer and increases its porosity by adding at least two kinds of inorganic particles with specific particle size to form geometric stack and increase the size of pores, so that light refraction of the coating layer can be reduced and light transmittance can be enhanced.

Description

technical field [0001] The present invention relates to a light-enhancing penetrating coating composition, especially a light-enhancing penetrating coating composition comprising inorganic particles of two different particle sizes and a coating formed therefrom. Background technique [0002] Due to the increasingly serious environmental problems such as energy shortage and greenhouse effect, various countries have actively researched and developed various alternative energy sources, especially solar power generation, which has attracted the most attention from all walks of life. When sunlight enters the solar cell module through the transparent front panel from the air, it will undergo photoelectric conversion in the solar cell unit, convert the light energy into electrical energy and then output it. However, the power generation efficiency of the currently known solar cell components is not ideal. For the most widely used monocrystalline and polycrystalline silicon solar c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/06C09D183/08C09D7/12
CPCC08K3/36C08K2201/011C09D183/06C09D183/08C09D7/61C09D7/67C08G77/14C08G77/24C08K2003/2241C08K2201/005C08K2201/014G02B1/111G02B2207/107G02B1/18G02B1/11
Inventor 林盛伟叶茂荣吴建成
Owner ETERNAL MATERIALS CO LTD
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