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High-ultraviolet high-infrared reflective material and preparation method thereof

An infrared reflection and infrared technology, which is applied in the fields of chemical instruments and methods, phosphorus compounds, inorganic chemistry, etc., can solve problems such as the inconspicuous near-infrared reflection effect, and achieve the effects of common raw materials, stable performance, and large application prospects

Inactive Publication Date: 2011-05-04
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(Zhejiang University. Transparent and highly conductive near-infrared reflective coated glass: China, 200620140432.3 [P]. 2007.10.31) However, the infrared reflective glass of this type of film reported at home and abroad is only good for the far-infrared wavelength greater than 2500nm, and in the near-infrared The reflection effect is not obvious
[0006] Existing research is different from the base material of the present invention, and the zinc sodium phosphate base material of the present invention does not see the report of its relevant ultraviolet reflection or infrared reflection, also does not have copper, iron, chromium, aluminum, manganese, cobalt, magnesium, tin , one or more of rare earth element oxides and their salts have been reported as doped sodium zinc phosphate; in addition, there is no report on materials with both high ultraviolet reflection and high infrared reflection.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method of a high ultraviolet and high infrared reflective material, comprising the steps of:

[0033] (1) 1 part of zinc nitrate is dissolved in water;

[0034] (2) add the phosphoric acid solution that mass concentration is 85%, control PO 4 3- with Zn 2+ The molar ratio is 2.0:1.0; after mixing, dilute with water to Zn 2+ Concentration is 1mol / L, shake for 15 minutes, then add copper sulfate and lanthanum oxide as dopant, add copper sulfate and lanthanum oxide and Zn 2+ The molar ratios are 0.1:100 and 0.05:100, respectively. Dissolve the dopant powder under the action of 100KHz ultrasound;

[0035] (3) Add anhydrous sodium carbonate with twice the amount of zinc nitrate substance, heat and stir for 2h, the stirring speed is 220r / min, and the stirring temperature is 80°C, so that precipitation occurs in the solution;

[0036] The solution obtained in step (3) was filtered to obtain a precipitated filter residue, which was washed with distilled wate...

Embodiment 2

[0042] A preparation method of a high ultraviolet and high infrared reflective material, comprising the steps of:

[0043] (1) Take 1 part of zinc sulfate and dissolve it in water;

[0044] (2) add the phosphoric acid that mass concentration is 75%, control PO 4 3- with Zn 2+ The molar ratio is 1.5:1.0; after mixing, dilute with water to Zn 2+ Concentration is 0.5mol / L, shaking for 10 minutes, and then mixed with Zn 2+ Copper nitrate with a molar ratio of 0.1:100 and yttrium oxide with a molar ratio of 0.05:100 were added to the solution as dopants, and ultrasonically oscillated at 60KHz until the dopant powder was dissolved;

[0045] (3) Add anhydrous sodium carbonate which is 2.5 times the amount of zinc sulfate, heat and stir for 2.0 hours, the stirring speed is 200r / min, and the stirring temperature is 60°C. cause precipitation in solution;

[0046] (4) Filtrate the solution to obtain a precipitated filter residue, which is washed with distilled water five times, and...

Embodiment 3

[0050] A preparation method of a high ultraviolet and high infrared reflective material, comprising the steps of:

[0051] (1) Take 1 part of zinc nitrate and dissolve it in water;

[0052] (2) add the phosphoric acid that mass concentration is 80%, control PO 4 3- with Zn 2+ The molar ratio is 1.8:1.0; after mixing, dilute with water to Zn 2+ Concentration is 1.5mol / L, shaking for 14 minutes, and then mixed with Zn 2+ Lanthanum oxide with a molar ratio of 0.02:100 was added to the solution as a dopant, and ultrasonically oscillated at 80KHz until the dopant powder was dissolved;

[0053] (3) Add anhydrous sodium carbonate twice the amount of zinc nitrate, heat and stir for 1.8 hours, the stirring speed is 210r / min, and the stirring temperature is 70°C. cause precipitation in solution;

[0054] (4) Filtrate the solution to obtain a precipitated filter residue, which is washed with distilled water for 6 times, and then dried for 1.2 hours at a drying temperature of 110°C....

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PUM

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Abstract

The invention discloses a high-ultraviolet high-infrared reflective material and a preparation method thereof. In the invention, a zinc source, phosphoric acid and anhydrous sodium carbonate are used as raw materials to form a zinc sodium phosphate base material, and oxides of metal and rare-earth elements and one or more salts of metal and rear-earth elements are used as adulterants and mixed into the zinc sodium phosphate base material to prepare a high-ultraviolet high-infrared reflective zinc sodium phosphate material; and by taking barium sulfate as a 100 percent datum reflectivity, the ultraviolet reflectivity of the high-ultraviolet high-infrared reflective material is 90-105 percent, the reflectivity of infrared ray with wavelengths of 800-2,000nm is 110-120 percent, and the reflectivity of infrared ray with wavelengths of 2,000-2,500nm is 130-150 percent. The method not only has high infrared reflection, but also can be used for reflecting ultraviolet light harmful to the human body, and can achieve the effects of saving energy and benefiting to the human health.

Description

technical field [0001] The invention relates to the field of energy-saving materials, and more specifically relates to an energy-saving material with high ultraviolet and high infrared reflectivity and a preparation method thereof. Background technique [0002] The range of solar radiation observed on the ground is about 0.295 to 2.5 microns. Excessive ultraviolet rays can cause skin cancer, and infrared wavelengths can generate a lot of heat. For some areas or offices, trying to reduce infrared light transmission has important practical application value. Materials with high ultraviolet and infrared reflectivity can not only avoid the passage of heat and infrared light, but also reduce the damage of ultraviolet light to the skin. [0003] For now, in terms of UV or IR reflection, most of the research is focused on thin films. [0004] In terms of UV reflection, most materials with high visible transmittance have relatively low UV reflectance, such as AZO and IZO, which ar...

Claims

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Application Information

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IPC IPC(8): C01B25/45
Inventor 苏达根付文祥钟明峰王达
Owner SOUTH CHINA UNIV OF TECH
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