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Reflecting coating of double-glass assembly and preparation method of reflecting coating

A technology for component reflection and coating, applied in coating, photovoltaic power generation, etc., can solve the problem of low titanium dioxide content, and achieve the effects of good chemical stability, reduced production cost, and low sintering temperature

Active Publication Date: 2022-02-01
DONGHUA UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, the content of titanium dioxide in the reflective coating is not high and contains more glass beads, so the reflectivity will not be very high

Method used

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  • Reflecting coating of double-glass assembly and preparation method of reflecting coating
  • Reflecting coating of double-glass assembly and preparation method of reflecting coating
  • Reflecting coating of double-glass assembly and preparation method of reflecting coating

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Embodiment

[0031] Embodiment: A composite reflective coating for a double-glass component, including a double-coating layer, the bottom layer is a high-content titanium dioxide layer, and the outer layer is a transparent glass glaze layer. The total thickness of the composite reflective coating is 33-45um, wherein the thickness of the bottom layer is 18-25um, and the thickness of the outer layer is 15-20um. The composition of the high-content titanium dioxide layer of the bottom layer includes mixed material and ink, and the mixed material includes 65-80 wt% of nano titanium dioxide and 20-35 wt% of basic glass glaze. The crystal form composition of nano titanium dioxide is 10-50wt% anatase crystal form, 50-90wt% rutile crystal form, and the average particle diameter of nano titanium dioxide is 50-500nm.

[0032] The present invention provides the compound reflective coating of 10 routine components, specifically as table 1:

[0033] Table 1

[0034]

[0035] The preparation method ...

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PUM

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Abstract

The invention provides a reflecting coating of a double-glass assembly. The reflecting coating comprises a high-content titanium dioxide layer on a bottom layer and a transparent glass glaze layer on an outer layer. The invention also provides a preparation method of the reflecting coating for the double-glass assembly. The preparation method comprises the following preparation steps: S1, preparing a basic glass glaze and a transparent glass glaze; S2, preparing bottom-layer slurry; S3, preparing outer-layer slurry; S4, conducting coating of a composite reflective coating; and S5, performing sintering. According to the composite reflecting coating, the outer layer completely wraps the bottom layer, the coating is firmly combined with embossed backboard glass, the compounded coating is high in adhesive force, higher in corrosion resistance compared with a common single reflecting coating, good in chemical stability, high in visible light average reflectivity, low in lipophilicity and small in ink consumption, and production cost is reduced.

Description

technical field [0001] The invention belongs to the field of inorganic reflective coatings, in particular to a reflective coating on the back glass of a photovoltaic double-glass module and a preparation method thereof. Background technique [0002] At present, photovoltaic power generation has become an important solar energy conversion technology, and improving the efficiency of photovoltaic power generation will further increase the utilization rate of solar energy. In recent years, photovoltaic double-glass modules have the advantages of high power generation efficiency. Double-glass modules have gradually replaced traditional single-glass modules in the market. According to incomplete statistics from relevant authoritative departments, up to now, the market share of photovoltaic double-glass modules has exceeded 20%. Therefore, for the photovoltaic industry, double-glass modules have become a development trend. [0003] The power generation efficiency of double-glass m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/34
CPCC03C17/3417C03C2218/119C03C2218/112C03C2218/32Y02E10/52
Inventor 汪庆卫施王明刘金平夏秀峰罗理达
Owner DONGHUA UNIV
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