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Help CenterHigh-purity Ato Powder (antimony Tin Oxide), Nano-grade Antistatic, Transparent, Conductive, Heat-insulating, Infrared-absorbing Powder
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Core Pain Points and Solutions in the Industry
In the fields of electronics, optics, and building energy conservation, the static electricity accumulation, infrared thermal radiation transmission, and insufficient heat insulation performance of transparent materials (such as glass and plastic films) have long been technical problems plaguing the industry. Most traditional antistatic agents are organic coatings, which have defects such as poor durability, easy migration, and affecting transparency. Infrared absorption materials are either costly (such as ITO) or have low visible light transmittance, failing to meet the compound requirements of "transparent + conductive + heat insulating + infrared shielding" for high-end applications. Yantai Jialong Nano Industry Co., Ltd. has launched high-purity ATO powder (antimony tin oxide nanoscale antistatic transparent conductive heat insulating infrared absorption powder) targeting the above pain points based on nearly 20 years of R & D experience in nanomaterials. This product optimizes the semiconductor energy band structure by precisely controlling the antimony doping ratio and nanoscale particle size. It can not only conduct electricity and static electricity efficiently but also selectively absorb near-infrared light (wavelength 780 - 2500nm) while maintaining high transmittance in the visible light region (380 - 780nm), fundamentally solving the problems of single function and performance degradation of traditional materials.
Working Mechanism and Technical Advantages
ATO (Antimony Tin Oxide) is an n-type semiconductor material. Its conduction principle is based on the carriers (electrons) introduced by oxygen vacancies and antimony ion doping. When part of Sn⁴⁺ in the SnO₂ lattice is replaced by Sb⁵⁺, the electron concentration increases significantly, forming a degenerate semiconductor with a conductivity of up to 10⁴ S/cm. The infrared absorption mechanism results from the plasma resonance absorption of infrared photons by free carriers and the reflection of the far-infrared region by lattice vibrations. The nanoscale particle size (10 - 30nm) endows the material with a super-large specific surface area (30 - 50 m²/g), making it easily dispersible in the polymer matrix to form a three-dimensional conductive network. Thus, an antistatic effect with a surface resistivity of 10⁵ - 10⁷ Ω/sq can be achieved at a very low addition amount (3 - 8 wt%), while the visible light transmittance is ≥85%.
Core Product Features:
- High Purity and Controllable Doping: Using the co-precipitation method combined with high-temperature calcination process, the Sb/Sn molar ratio is precisely controlled at 0.05 - 0.15, with a purity of ≥99.9% and an impurity content (Fe, Cu, Ni, etc.) of
- Ultra-fine Nanoscale Particle Size: The primary particle size is 10 - 20nm, and the aggregate particle size D50 ≤ 100nm, suitable for fine processing of transparent coatings, films, fibers, etc.
- Multi-functional Composite: It simultaneously possesses four functions: antistatic, transparent conductivity, heat insulation, and infrared absorption. One powder can be used for multiple purposes, reducing the cost of downstream formulations.
- Weather resistance and chemical stability: With an inorganic oxide structure, it is resistant to acids and alkalis, ultraviolet rays, and high temperatures (＞500℃), and has a long service life.
- Easy dispersibility: The surface can be optionally modified with hydrophilic/hydrophobic properties, and it can be adapted to water-based, oil-based, and solvent-based systems. After dispersion, the particle size is uniform without hard precipitation.
Technical specification parameters (The following are typical values and can be customized according to customer requirements):
| Parameter | Indicator |
| Chemical composition | SnO₂:Sb₂O₃ = 90:10 (molar ratio) |
| Purity | ≥99.9% |
| Primary particle size (TEM) | 15±5 nm |
| Specific surface area (BET) | 40-60 m²/g |
| Color | Light blue to dark blue (varies with doping amount) |
| Resistivity (powder compaction) | 1-10 Ω·cm |
| Visible light transmittance (5% addition, film thickness 5μm) | ≥85% |
| Infrared shielding rate (780-2500nm, 5% addition) | ≥70% |
| Surface resistivity (5% added to PET film) | 10⁶-10⁷ Ω/sq |
| Temperature resistance | Resistant to temperatures >500℃ in air |
Industry Application Scenarios
This product is widely used in the following fields:
- Transparent Conductive Coatings: Used for transparent electrodes in touch screens, LCD/OLED panels, and solar cells, replacing ITO (cost reduced by 30-50%).
- Antistatic Packaging/Films: Used for packaging electronic components, explosion-proof films, and cleanroom glove boxes, with stable and controllable surface resistivity.
- Building Energy-Saving Glass Coatings: Coated on the glass surface, it can block infrared thermal radiation while maintaining high light transmittance, saving energy by reducing temperature in summer.
- Infrared Stealth Materials: Used for military camouflage coatings to reduce infrared characteristic signals.
- Automobile Anti-Fog Films and Heat Insulation Films: It has both functions of conductive heating for anti-fogging and infrared heat insulation.
Company Strength and Trust Endorsement
Yantai Jialong Nano Industry Co., Ltd. was established in 1998. It is a national high-tech enterprise and has been recognized by the Ministry of Science and Technology as the "Industrialization Base of National 863 Program Achievements" and the "Key High-Tech Enterprise of Torch Program". It also established an "Enterprise Postdoctoral Research Workstation". The company has successively undertaken and completed more than ten national and provincial-level scientific and technological projects such as the "National 863 Program", the "National High-Tech Industrialization Demonstration Project", and the "Torch Program". The company has a modern production base covering an area of 33,333 square meters, with a total investment of 87 million yuan. It is equipped with imported testing equipment (such as TEM, XRD, BET, laser particle size analyzer, etc.) and fully automatic production lines. The annual production capacity of nano powders reaches 500 tons. The company has passed the ISO9001 quality management system certification, and its products are exported to Europe, the United States, Japan and South Korea. It has established long-term cooperation with many Fortune 500 companies. Our technical team can provide customers with one-stop services such as formula optimization and dispersion process guidance.
Consultation Suggestions
If you are looking for a nano functional powder with high transparency, excellent conductivity, infrared shielding, and heat insulation performance, it is recommended that you first clarify the target application scenarios (such as coating systems, substrate types, and addition range), and contact us to obtain samples for small-scale verification. Our engineers can customize the particle size, surface treatment plan, and doping ratio according to your specific needs to ensure that the product perfectly matches your process. Welcome to call or email us. We will provide you with professional technical support and free samples.
FAQ (Frequently Asked Questions)
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Q: Will the ATO powder settle after being dispersed in a solvent?
A: The surface-modified ATO powder, when used with an appropriate dispersant (such as BYK series, ammonium polycarboxylate) in a polar solvent (such as water, ethanol, isopropanol), can be stably suspended for more than 24 hours without hard precipitation after ultrasonic or sand-milling dispersion. We can provide recommended dispersion process parameters. -
Q: How does the addition amount affect the visible light transmittance?
A: In the PET film, when the addition amount is 3%, the transmittance can reach 90%; when it is 5%, it is about 85%; when it is 8%, it is about 78%. It is recommended to make a balanced choice according to the target transmittance and conductivity requirements. Usually, 5% can meet most antistatic/heat insulation requirements. -
Q: Can the product be used for food contact materials?
A: The ATO powder itself is an inorganic oxide, non-toxic and odorless, but it has not been certified for food contact. If it is used for food packaging, the customer needs to conduct migration tests on their own and ensure that the formula meets the relevant national standards. We can provide SGS reports. -
Q: Compared with ITO, what are the advantages of ATO?
A: The cost of ATO is only 1/3 - 1/2 of that of ITO, and its resources are abundant (without indium element). In terms of conductivity, the resistivity of ITO is slightly lower (at the level of 10⁻⁴ Ω·cm), but ATO can match ITO in infrared shielding performance, and its visible light transmittance is comparable. It is suitable for large-area applications that are sensitive to cost. -
Q: How to verify the infrared absorption effect of the product?
A: You can use a UV-Vis-NIR spectrophotometer to test the transmittance/reflection rate of the coating, or use an infrared thermal imager for intuitive comparison. We can provide third-party test reports (such as those from China Building Materials Inspection and Certification Group). -
Q: What are the storage conditions for the powder? How long is the shelf life?
A: Store it in a sealed, dark, and dry place at a temperature ≤ 40℃. The shelf life is 2 years if unopened. It is recommended to use it as soon as possible after opening. If it absorbs moisture, you can dry it in a vacuum at 80℃ for 2 hours to restore its performance.
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