Preparation method of high infrared reflection titanate nano-powder

A nano-powder and infrared reflection technology, applied in nanotechnology, chemical instruments and methods, inorganic chemistry, etc., can solve problems such as poor infrared reflection performance, uneven doping of products, complicated process routes, etc., and achieve low cost, decentralized Good performance and simple process

Inactive Publication Date: 2011-04-27
SHIJIAZHUANG TIEDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods have disadvantages such as complex process route, long production cycle, uneven doping of the obtained product, easy introduction of impurities, large particles of powder, uneven particle size, poor infrared reflection performance, etc.

Method used

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  • Preparation method of high infrared reflection titanate nano-powder
  • Preparation method of high infrared reflection titanate nano-powder
  • Preparation method of high infrared reflection titanate nano-powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] ① Disperse 7 parts by weight of acrylic acid in 3 parts by weight of deionized water, and fully dissolve it under magnetic stirring to obtain an aqueous solution of acrylic acid A;

[0031] ② Weigh nickel acetate and n-butyl titanate, add them to the acrylic acid aqueous solution A in step ①, and dissolve under magnetic stirring to obtain a homogeneous system B, wherein the molar ratio of nickel acetate and n-butyl titanate is 1: 1. The weight ratio of n-butyl titanate to acrylic acid aqueous solution A is 15:100;

[0032] 3. Under the condition of magnetic stirring, the deionized aqueous solution of ammonium persulfate with a weight content of 2% is added to the homogeneous system B in step 2. to obtain solution C. The weight ratio is 0.05:1;

[0033] ④ the solution C obtained in the step ③ at 100 ℃ Heat and stir for 25 minutes to make the system completely polymerized, then dry at 250°C for 2 hours to obtain a solid, cool and grind, then place in a muffle furnace, a...

Embodiment 2

[0036] ① Disperse 10 parts by weight of acrylic acid in 4 parts by weight of deionized water, and fully dissolve it under magnetic stirring to obtain an aqueous solution of acrylic acid A;

[0037] ② Weigh chromium acetate and n-butyl titanate, add them to the acrylic acid aqueous solution A in step ①, and dissolve under magnetic stirring to obtain a homogeneous system B, wherein the molar ratio of chromium acetate and n-butyl titanate is 2: 3. The weight ratio of n-butyl titanate to acrylic acid aqueous solution A is 20:100;

[0038] 3. Under the condition of magnetic stirring, the deionized aqueous solution of ammonium persulfate with a weight content of 5% is added to the homogeneous system B in step 2. to obtain solution C, the mixture of ammonium persulfate and acrylic acid in step 1. The weight ratio is 0.01:1;

[0039] 4. the solution C obtained in the step 3. at 80 ℃ Heat and stir for 15 minutes to completely polymerize the system, then dry at 180°C for 3 hours to ob...

Embodiment 3

[0042] ① Disperse 8 parts by weight of acrylic acid in 4 parts by weight of deionized water, and fully dissolve it under magnetic stirring to obtain an aqueous solution of acrylic acid A;

[0043] ② Weigh nickel acetate and n-butyl titanate, add them to the acrylic acid aqueous solution A in step ①, and dissolve under magnetic stirring to obtain a homogeneous system B, wherein the molar ratio of nickel acetate and n-butyl titanate is 1: 10. The weight ratio of n-butyl titanate to acrylic acid aqueous solution A is 25:100;

[0044] 3. Under the condition of magnetic stirring, the deionized aqueous solution of ammonium persulfate with a weight content of 2% is added to the homogeneous system B in step 2. to obtain solution C. The weight ratio is 0.05:1;

[0045] ④ the solution C obtained in the step ③ at 90 ℃ Heat and stir for 10 minutes to make the system completely polymerized, then dry at 200°C for 3 hours to obtain a solid, cool and grind, then place in a muffle furnace, a...

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Abstract

The invention discloses a preparation method of high infrared reflection titanate nano-powder, which belongs to the field of preparation of nano-materials. The general formula of the titanate nano-powder is MxTiOy, wherein M is nickel or chromium; and the titanate nano-powder is prepared according to the following steps: 1) mixing acrylic acid with water based on the ratio in parts by weight of (1-4): 1, thus obtaining an acrylic acid water solution A; 2) weighing soluble M saltand Ti (titanium) salt, adding the soluble M salt and Ti salt into the acrylic acid water solution A in the step 1), and dissolving, thus obtaining a homogeneous system B; 3) adding water solution of peroxy type initiator with the weight content of 2-10% into the homogeneous system B in the step 2) under stirring condition, thus obtaining a solution C; and 4) heating the solution C obtained in the step 3) at the temperature of 60-100 DEG C till the system is completely polymerized, then drying at the temperature of 80-250 DEG C until getting solids, cooling, grinding, and calcining for 2-5 hours at the temperature of 600-800 DEG C in an atmosphere. The prepared nano-power has good dispersivity, and the size of the prepared nano-power is uniform and is in the range of 20-80nm.

Description

technical field [0001] The invention relates to a preparation method of nanometer materials, in particular to a preparation method of titanate nanopowder with high infrared reflection for building energy-saving coatings. Background technique [0002] At present, building energy saving is an important goal for us to solve energy problems. my country's building energy consumption accounts for about 27% of the total energy consumption of the society, ranking first in all kinds of energy consumption in the country, and the building energy application efficiency is only 1 / 3 of that of developed countries. According to statistics, cooling equipment such as air conditioners and electric fans used around the world account for more than 20% of the total energy consumption every year. In summer, the temperature of the air conditioner should be controlled at 26°C~28°C, and every degree of increase can save 5%~8% of electricity. The air conditioner is cooling by doing work. When the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G53/00C01G37/00B82Y40/00
Inventor 李元庆康勇王建雷梅世刚吕臣敬田秀淑张光磊
Owner SHIJIAZHUANG TIEDAO UNIV
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