Nano WO3 Powder for Thermal Isolation Glass 50nm Yellow Tungsten Oxide

Nano WO3 Powder for Thermal Isolation Glass 50nm Yellow Tungsten Oxide

Nano tungsten oxide (WO3), as an advanced nano thermal insulation material, has shown significant advantages in the application of thermal insulation glass in the fields of construction and transportation. Its core value lies in its efficient spectral selectivity and environmental protection characteristics. 

Core advantages of nano tungsten oxide for thermal insulation glass

1. Excellent spectral selectivity

High infrared blocking rate: The blocking rate of near-infrared rays (the main source of solar heat) can reach more than 91%, reducing heat entry from the source.

High visible light transmittance: Maintaining a visible light transmittance of more than 75% does not affect indoor lighting needs. At the same time, the ultraviolet blocking rate is as high as 91%, protecting furniture from fading and aging.

Intelligent adjustment function: The electrochromic characteristics enable it to reversibly change color (such as from transparent to dark blue) under the action of an electric field, dynamically adjust light and heat transmittance (modulation amplitude of 40%), and the response time is only 12~28 seconds.

2. Significant energy-saving effect

The comprehensive energy-saving rate exceeds 30%, reducing air conditioning load in summer and reducing heat loss in winter. Compared with traditional insulating glass (only blocking 34.2% of infrared rays), nano-tungsten oxide glass can significantly reduce building energy consumption (door and window energy consumption accounts for 50% of the total building energy consumption).

3. Environmental protection and long-term performance
Inorganic water-based materials: non-toxic and environmentally friendly, coating thickness is only micron-level, and construction is convenient.
Strong weather resistance: performance can be maintained for more than 15 years without attenuation, aging resistance, self-cleaning, and anti-glare.
High safety: it is not easy to produce sharp fragments when the glass breaks, which improves safety protection.

4. Healthy and balanced design
Retaining about 10% of the ultraviolet transmittance, taking into account the sterilization needs and human health, avoiding the disadvantages of traditional high ultraviolet blocking materials (such as thermal insulation film, 99.7% blocking rate).

Practical application cases
1. Construction field
Office glass curtain walls and large public spaces: such as airport waiting halls, exhibition halls, etc., use nano-tungsten oxide coated glass to significantly reduce cooling energy consumption.
Residential sunroom renovation: Solve the problem of "furnace in summer and refrigerator in winter" in traditional sunrooms, and achieve energy saving and comfort improvement by spraying tungsten oxide thermal insulation coating (the cost is lower than replacing glass).

2. Transportation field
Automotive thermal insulation windows: Deep blue nano tungsten oxide is used for automotive glass, which blocks infrared radiation while maintaining high light transmittance, improves driving comfort and reduces air conditioning energy consumption.

3. Smart window system
Electrochromic smart window: Nano tungsten oxide is made into a thin film and integrated into the glass, and the transmittance is adjusted by voltage. For example, the transmittance modulation amplitude of the WO3 film with a nano-sheet structure is 40% at a wavelength of 750nm, which is suitable for high-end commercial buildings and smart homes.

Summary
Nano tungsten oxide achieves a balance of energy saving, comfort and intelligence in the field of thermal insulation glass through its unique spectral regulation ability. From large public buildings to home sunrooms, to automotive glass and smart window systems, its application has verified significant energy saving effects (>30%) and long-term stability (more than 15 years). As building energy-saving standards are improved, nano-tungsten oxide is expected to become one of the core materials for green buildings and promote the realization of sustainable development goals.