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Low-light-transmission privacy energy-saving float glass composition and preparation method thereof

A float glass and composition technology, applied in the field of privacy and energy-saving float glass composition and its preparation, can solve problems such as reducing effect, and achieve the effects of improving uniformity, improving absorption and blocking effect, and promoting clarification

Active Publication Date: 2017-09-01
南京安达玻璃技术有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology mainly reduces the total iron concentration in the glass to FeO by adding some reducing substances to increase the Fe content in the glass. 2+ content, thereby enhancing the absorption of infrared energy, such as the Chinese patent application with publication number CN 103951186 B ​​"a batch material component for the production of high ferrous glass and its application", by adding a certain amount of simple Si, Si with Fe 2 o 3 The reaction generates FeO, thereby greatly increasing the Fe content in the glass 2+ However, elemental Si is easily oxidized to SiO in the process of float glass preparation 2 , reduce Si and Fe 2 o 3 The effect of the reaction to form FeO

Method used

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  • Low-light-transmission privacy energy-saving float glass composition and preparation method thereof
  • Low-light-transmission privacy energy-saving float glass composition and preparation method thereof
  • Low-light-transmission privacy energy-saving float glass composition and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1 3

[0027] The preparation of embodiment 1 ternary metal sulfide

[0028] The composition of zinc-tin-sulfur nanoparticles in group A-E ternary metal sulfides is shown in the table below:

[0029] Raw material (m / m, %) Group A Group B Group C Group D Group E Zinc powder 50 45 40 50 50 tin powder 35 40 40 35 35 Sulfur powder 15 15 20 / 15

[0030] Preparation of group A ternary metal sulfides:

[0031] (1) Mix zinc powder, tin powder and sulfur powder, place them in a polyurethane ball milling tank, use absolute ethanol as the ball milling medium, the ratio of absolute ethanol to powder is 1:2, in an inert gas N 2Under the protection of 400r / min, strengthen the ball mill for 2 hours, put it in a vacuum carbon tube furnace and heat up to 150°C, react for 0.5h, continue to heat up to 400°C, and react for 0.5h. After the reaction is completed, it is cooled to room temperature with the furnace to obtain zinc tin Sulfur nanoparticle...

Embodiment 2

[0038] Embodiment 2 Preparation of privacy and energy-saving float glass composition with low light transmission:

[0039] (1) Weigh SiO according to the formula 2 、Na 2 O, CaO, MgO, Al 2 o 3 , Fe 2 o 3 , NiO and ternary metal sulfide, the mixture is obtained after fully mixing the components;

[0040] (2) Add the mixture obtained in step (1) into the kiln furnace, heat to 1500° C. to melt and clarify to obtain molten glass;

[0041] (3) The molten glass obtained in step (2) is cooled to 1100° C., formed in a tin bath, then annealed in an annealing kiln, and cut to obtain privacy and energy-saving float glass with high ferrous iron and low light transmission.

[0042] Examples 3, 4 and Comparative Examples 1-4 Reference Example 2 for the preparation of the low-transmittance privacy-saving energy-saving float glass composition.

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Abstract

The invention relates to a low-light-transmission privacy energy-saving float glass composition and a preparation method thereof. The glass is prepared from the following raw materials in percentage by weight: 65% to 78% of SiO2, 12% to 17% of Na2O, 7% to 13% of CaO, 0% to 7% of MgO, 0.5% to 2.5% of Al2O3, 0.5% to 1.2% of Fe2O3, 0.01% to 0.3% of NiO and 0.5% to 2% of ternary metal sulfides. The prepared glass has the ferrous content of 40% or more, the visible light transmission rate (LTA) of lower than 50%, the ultraviolet transmission rate (TUV) of lower than 10%, the infrared transmission rate (TIR) of lower than 15% and the sunlight direct transmission rate (TG) of lower than 20% and has relatively good energy-saving performance and anti-mildewing effect.

Description

technical field [0001] The invention relates to a float glass, in particular to a low-transmittance privacy-saving energy-saving float glass composition and a preparation method thereof. Background technique [0002] At present, new glass technologies in the world are developing in the five fields of energy, materials, environmental protection, information, and biology, among which energy saving is the current research hotspot. Especially in the automotive and construction industries, various energy-saving glass has gradually replaced traditional ordinary glass and become the mainstream trend. [0003] Privacy glass is a kind of colored glass that transmits gray, green or blue, etc. By adding a certain colorant to the glass material, the transmission of solar heat through the glass is reduced, and it is mainly used in side windows and skylights of automotive glass . Common colorants are mainly composed of Fe, Ti, Co, Cr and Ce, among which, the addition of Fe can adjust th...

Claims

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Application Information

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IPC IPC(8): C03C3/087C03B18/00
CPCC03B18/00C03C3/087
Inventor 安永锋张强胡水徐国平潘行晓
Owner 南京安达玻璃技术有限公司
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