Nanometric tin-containing metal oxide particle and dispersion, and preparation method and application thereof

a technology of metal oxide nanoparticles and nanoparticles, which is applied in the field of nanometric tin-containing metal oxide nanoparticles and their di, can solve the problems of high equipment price by using the above method, high energy consumption within the building, and harmful to the surface paint of furniture and human bodies. high, high transparency

Inactive Publication Date: 2015-06-11
XIAMEN NANOTECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010]The object of the present invention is to provide one kind of mono-dispersed, stable tin-containing metal oxide nano-particles, dispersions and glass composite materials, which have high transparency and IR blocking function. A further object of the present invention is to provide a low-cost mass production method of the above-mentioned tin-containing metal oxide nano-particles and the dispersion. Another object of the present invention is to provide the sunlight control composite material and glass products comprising the above-mentioned tin-containing metal oxide nano-particles or dispersion with high transparency and IR blocking (or simultaneously blocking UV and IR) function.

Problems solved by technology

The main energy consumption within the building is due to heating and air conditioning.
UV does not account for a large proportion in energy, but greatly harmful to the surface paint of furniture and human bodies, which is one of the reasons that anti-UV glass has been increasingly widely used.
Equipment prices by using above methods are expensive with restrictions on the substrate and the substrate shape, size.
Furthermore, the methods are difficult to apply to existing glasses, therefore meeting a very limited commercial promotion.
At present, coated glasses are mainly used in automotive, which market is basically monopolized by very expensive films from companies of the United States 3M, V-BEST, JOINNS, JOHNSON, and difficult to be extended to architectural glass.
This simple powder reprocessing approach may cause serious aggregation, especially due to the high surface energy of nano-particles.
Moreover, the uneven intensity of ball milling or sanding milling may lead to non-uniform secondary particle size of the dispersed particles; in addition, ball milling and sanding milling inevitably introduce impurities.
Dispersion and the modification belonging to physical modification methods, affecting the stability of functional dispersion, which is difficult to maintain the particles in the dispersion in nanoscale and keep stable for long time.
These will affect the application of the functional dispersion, ultimately affect the transparency and other properties of the glass coating or film.

Method used

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  • Nanometric tin-containing metal oxide particle and dispersion, and preparation method and application thereof
  • Nanometric tin-containing metal oxide particle and dispersion, and preparation method and application thereof
  • Nanometric tin-containing metal oxide particle and dispersion, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0171]350.8 g of tin tetrachloride pentahydrate dissolved in 1 L of 2.5M diluted hydrochloric acid, and then 22.8 g of antimony trichloride was added under vigorous stirring to a solution of tin tetrachloride, maintaining the vigorous stirring to form a uniform suspension.

[0172]During the vigorous stirring, 1 L of 6M aqueous ammonia was added to the suspension, then keep at 60° C. for 20 min. The resulting pale yellow slurry was centrifuged and re-dispersed into 1.5 L of water, then centrifuged again, and repeated the above procedure until nearly no ionic impurities.

[0173]The resulted filter cake was re-dispersed in around 1 L of water, and transferred to a hydrothermal reactor with adding 100 ml of hydrogen peroxide. The slurry was heated to 250° C., and held for 8 hours.

[0174]When the hydrothermal reactor was cooled to room temperature, the dark blue slurry was centrifuged and washed by water, then centrifuged to obtain a cake.

[0175]The cake was re-dispersed to about 600 mL of wat...

example 2

[0186]Steps before the hydrothermal treatment and hydrothermal treatment conditions and procedures were the same to described in Example 1.

[0187]When hydrothermal reactor cooling down to room temperature, blue slurry was collected and centrifuged, then washed and dispersed in water, centrifuged again to obtain a cake.

[0188]The cake was re-dispersed to 1 L of methanol with 2.5 g of tetramethyl ammonium hydroxide and 500 mL of methanol containing 44.5 g of Titanate coupling agent (product name: NDZ-311) and stirred for 10 min. The slurry was centrifuged and sufficiently dispersed into 1 L of methanol and centrifuged again. The sediment was redispersed into 600 mL of butyl acetate, together with 7.5 g of another titanate coupling agent (product name: NDZ-109). The suspension was evaporated to dryness under reduced pressure to collect the dark blue powder.

[0189]The powder was re-dispersed into the butyl acetate to the solid content of ATO nano-particles (based on the weight of the dispe...

example 3

[0191]350.8 g of tin tetrachloride pentahydrate was dissolved in 1.5 L of methanol, then adding 22.8 g of antimony trichloride with stirring to a clear solution.

[0192]During the stirring, 1 L of 6M aqueous ammonia was added to the solution and maintained at 60° C. for 30 min.

[0193]The resulted pale yellow slurry was centrifuged and re-dispersed into 1.5 L of water, centrifuged again, repeated the above procedure until nearly no ionic impurities.

[0194]The resulted cake was re-dispersed into 1 L of water and transferred to hydrothermal reactor, with adding 100 mL of hydrogen peroxide. The slurry was heated to 290° C. and maintained for 8 hours.

[0195]When hydrothermal reactor cooling down to room temperature, the blue slurry was collected and centrifuged, then washed and dispersed with water, and centrifuged to obtain a dark blue cake.

[0196]The cake was re-dispersed into 600 mL of water, with 7.5 g of tetramethyl ammonium hydroxide and 300 mL of methanol solution containing 22.5 g of c...

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Abstract

There is disclosed a tin-containing metal oxide nanoparticle, which has an index of dispersion degree less than 7 and a narrow particle size distribution which is defined as steepness ratio less than 3. There is disclosed dispersion, paint, shielding film and their glass products which comprise the said nanoparticles. Besides, there are also disclosed processes of making the tin-containing metal oxide nanoparticle and their dispersion. The tin-containing metal oxide nanoparticles and their dispersion disclosed herein may be applied on the window glass of houses, buildings, vehicles, ships, etc. There is provided an excellent function of infrared blocking with highly transparent, and to achieve sunlight controlling and thermal radiation controlling.

Description

TECHNICAL FIELD[0001]The present invention relates to a high transparency, low radiation, energy-saving composite material for glass, and more particularly, to tin-containing metal oxide nano-particles and their dispersion, the preparation methods of the nano-particles and dispersion, sunlight-control composition material comprising the tin-containing metal oxide particles or their dispersion, and the high transparency, low radiation and energy-efficient glass.BACKGROUND[0002]With the rapid development of science and technology and industrial production, energy resource and the environment increasingly attract whole social attention with higher demands for energy saving and environmental protection. Regarding to energy consumption, energy consumption from buildings accounts for nearly 40% of the total social energy consumption, of which the energy loss through the glass doors and windows in the building energy consumption reaches more than 50%, that is, the glass doors and windows h...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G02B1/14C01G30/02C01G19/00
CPCG02B1/14C01G19/00C01P2004/64C01P2006/60C01G30/026B82Y30/00C01G30/00C01P2002/50C01P2002/72C01P2002/84C01P2004/04C01P2004/52C01P2004/54C03C17/007C03C17/009C03C2217/445C03C2217/475C03C2217/476C03C2217/485C03C2217/74C08K13/02G02B5/206G02B5/208Y10T428/2982
Inventor SHEN, ZHIGANGSOH, WEI KIANZHANG, JIYAOWANG, AICIZHONG, JIEYUN, SUNG LAI JIMMYSHER, HOCK SINGCHEN, JIANFENG
Owner XIAMEN NANOTECH
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