Low light transmittance energy-saving privacy glass and preparation method thereof

Abstract

The invention discloses low light transmittance energy-saving privacy glass and a preparation method thereof. The glass comprises the following raw materials in percentage by weight: 65 to 75 percentof SiO2, 0 to 1.5 percent of Al2O3, 6 to 12 percent of CaO, 1 to 10 percent of MgO, 10 to 15 percent of Na2O, 0 to 5 percent of K2O, and 0.5 to 2.5 percent of porous iron titanium alloy composite powder, wherein the porous iron titanium alloy composite powder takes iron titanium composite metal oxide as a porous matrix, and is formed by impregnating nanometer silicon carbide into holes of the porous matrix through an impregnation method. The method has the advantages that the raw materials are prepared into glass through a floating glass technology, and the obtained glass not only has low ultraviolet ray, infrared ray and total solar energy transmittance and good energy-saving effect, but also has low visible light transmittance, is good in privacy, can be applied to fields of various window glass and building curtain wall glass, is excellent in thermal insulation effect, and achieves obvious cooling, energy conservation and emission reduction effect.

Description

technical field [0001] The invention relates to a float glass, in particular to a low-transmittance energy-saving privacy glass and a preparation method thereof. Background technique [0002] With the continuous improvement of people's awareness of energy saving and the continuous development of the automobile industry, new energy-saving and consumption-reducing products are increasingly adopted by the automobile industry. The sunlight injected into the car increases the temperature inside the car on the one hand, Greatly increased the air-conditioning load and consumed a lot of energy. On the other hand, the ultraviolet rays in the sun accelerated the erosion of plastics, leather and other decorative materials in the car, and could not block strong ultraviolet rays and infrared rays, especially in summer. Detrimental to human health. [0003] Privacy glass that significantly reduces solar heat transmission through the glass is being put into practical use as the rear side ...

AI Technical Summary

Problems solved by technology

Be as publication number: the Chinese patent application of CN100418912A discloses the gray privacy glass of strong absorption ultraviolet and infrared, the coloring agent of this privacy glass is made of Fe 2 o 3 、Co 3 o 4 , NiO and Se, it has good ultraviolet and infrared absorption rate, low transmittance of visible light, and good privacy performance, but Co 3 o 4 Expensive, high cost

Another example is that the publication number is: the Chinese patent application of CN 103951186A discloses a batch material component and application thereof for producing high ferrous glass, by adding a certain amount of simple Si, Si and 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

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