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A kind of high light transmittance heat insulation energy-saving glass and preparation method thereof

A technology of energy-saving glass and porous iron, which is applied in the field of float glass, can solve the problems of affecting visible light transmittance, low visible light transmittance, and inability to meet the requirements for the use of automobile front windshields, so as to ensure the effect of heat insulation and sun protection, High infrared blocking rate and ultraviolet blocking rate, good reduction effect

Active Publication Date: 2019-03-29
广西华凯玻璃有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, Fe-containing oxides are cheap and are the most common additives for energy-saving glass at present. 3+ It can improve the absorption of glass to ultraviolet rays, while Fe 2+ It can improve the absorption of infrared rays by glass, and Fe 2+ The tinting power is about Fe 3+ 10 times of that, by adjusting the Fe in the glass system 3+ and Fe 2+ content, can achieve the purpose of shielding ultraviolet and infrared rays, but Fe 2+ Existence, which seriously affects the transmittance of visible light, and finally makes the transmittance of most energy-saving glass to visible light lower than 75%, which cannot meet the requirements for the use of automobile front windshields

Method used

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  • A kind of high light transmittance heat insulation energy-saving glass and preparation method thereof
  • A kind of high light transmittance heat insulation energy-saving glass and preparation method thereof
  • A kind of high light transmittance heat insulation energy-saving glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The preparation of embodiment 1 iron cerium composite metal oxide

[0034](1) Mix ferric nitrate and cerium nitrate at a molar ratio of 1:1, add deionized water, and stir until completely dissolved to obtain solution A; mix citric acid and polyethylene glycol 4000, add deionized water, and stir until Dissolve completely to obtain solution B, the molar ratio of the citric acid to ferric nitrate is 1:1; the addition of polyethylene glycol 4000 is 3% of the total weight of ferric nitrate and cerium nitrate.

[0035] (2) Slowly add solution B to solution A, and stir while adding dropwise to obtain a mixed solution. Put the mixed solution in a water bath at 55°C and stir for 60 minutes, then raise the temperature to 75°C, and continue stirring for 7 hours until the water evaporates completely, showing Viscous foaming state, that is, gel.

[0036] (3) Dry the gel at 120°C for 10 hours, take it out, grind it into powder, and put the powder in a muffle furnace for calcination ...

Embodiment 2

[0038] The preparation of embodiment 2 iron cerium composite metal oxide

[0039] (1) Mix ferric nitrate and cerium nitrate at a molar ratio of 2:1, add deionized water, and stir until completely dissolved to obtain solution A; mix citric acid and polyethylene glycol 4000, add deionized water, and stir until Dissolve completely to obtain solution B, the molar ratio of the citric acid to ferric nitrate is 2:1; the addition of polyethylene glycol 4000 is 4% of the total weight of ferric nitrate and cerium nitrate.

[0040] (2) Slowly add solution B to solution A, and stir while adding dropwise to obtain a mixed solution. Put the mixed solution in a water bath at 60°C and stir for 30 minutes, then raise the temperature to 85°C, and continue stirring for 5 hours until the water evaporates completely, showing Viscous foaming state, that is, gel.

[0041] (3) Dry the gel at 120°C for 10 hours, take it out, grind it into powder, and put the powder in a muffle furnace for calcination...

Embodiment 3

[0043] Preparation of Example 3 Porous Fe-Cerium Alloy Composite Powder

[0044] Formula: by weight percentage, 85% of the iron-cerium composite metal oxide prepared in Example 1, 10% of nano-tin powder and 5% of paraffin powder.

[0045] Preparation method: heat the paraffin wax powder to a melting state, add nano-tin powder, disperse at high speed for 15 minutes, cool to room temperature, and obtain a mixed powder; add the mixed powder and the iron-cerium composite metal oxide prepared in Example 1 to a powder mixer , After feeding, vacuumize the inner cavity of the powder mixer to make the internal pressure at least lower than 30000Pa, and then mix for 40 minutes under negative pressure, that is, the porous iron-cerium alloy composite powder.

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Abstract

The invention discloses high light transmission heat-insulation energy-saving glass and a preparation method thereof. The glass comprises, by weight, 65-80% of SiO2, 0-2% of Al2O3, 5-15% of CaO, 1-10%of MgO, 10-20% of Na2O, 0-5% of K2O and 0.05-0.3% of porous iron-cerium alloy composite powder. The porous iron-cerium alloy composite powder utilizes an iron-cerium composite metal oxide as a porousmatrix physically doped with nano-tin powder in pores. The glass prepared through a float glass process has high visible light transmittance and the excellent infrared light blocking rate and ultraviolet shielding rate, and has high heat insulating performances without influencing the glass light transmittance. The preparation method is simple and realizes a low cost.

Description

technical field [0001] The invention relates to a float glass, in particular to an energy-saving glass with high light transmission and heat insulation and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of my country's economy, energy has been greatly consumed, and energy conservation has become the main research direction of various industries. In terms of glass used in industries such as automobiles and buildings, energy-saving glass is one of the research hotspots. In order to make the glass have energy-saving performance, a low-reflection film is usually coated on the surface of the glass, which increases the production cost of the glass, and the performance of the coated low-reflection film will decay or fall off as time goes on. Therefore, if the glass body can be made Having energy saving performance would be the best choice. [0003] We know that most of the heat of the car enters from the front windshield, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/095C03B18/02
CPCC03B18/02C03C3/095C03C3/087
Inventor 陈文学
Owner 广西华凯玻璃有限公司
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