What high-quality raw materials are used in curtain wall insulating glass to ensure its transparency and strength?
Publish Time: 2025-04-21
As an important part of modern architecture, curtain wall insulating glass plays a key role in improving the aesthetic appearance, energy-saving efficiency and safety of buildings. In order to ensure its transparency and strength, manufacturers have made many considerations and optimizations in material selection and production processes.First of all, low-iron ultra-white glass is one of the high-quality raw materials commonly used for curtain wall insulating glass. This glass is named for its extremely low iron content, which is usually less than 0.015%, which greatly improves the transparency and purity of the glass. Low-iron ultra-white glass not only has a visible light transmittance of more than 91%, but also effectively reduces light reflection, making the appearance of the building brighter and more transparent. In addition, this glass also has excellent chemical stability and can maintain its optical properties for a long time in various environments, making it very suitable for high-end building curtain walls.Secondly, tempered glass is also an important part of curtain wall insulating glass. Tempered glass forms a compressive stress layer on the surface and a tensile stress layer inside by heat treating or chemically strengthening ordinary glass, thereby significantly improving the mechanical strength and impact resistance of the glass. Even when damaged by external forces, tempered glass will break into small particles instead of sharp large fragments, greatly reducing the risk of injury to the human body. Therefore, tempered glass is widely used in high-rise buildings and public places to ensure the safety and reliability of curtain walls.Furthermore, in order to further improve the comprehensive performance of curtain wall insulating glass, some high-end products will also use laminated glass or multi-layer composite structure. Laminated glass consists of two or more pieces of glass with one or more layers of polyvinyl butyral (PVB) film sandwiched between them. This structure not only enhances the overall strength and toughness of the glass, but also effectively absorbs impact energy, prevents splashing after the glass breaks, and increases safety. In addition, laminated glass also has good sound insulation and certain heat insulation properties, and is particularly suitable for building curtain walls in urban centers or busy traffic areas.It is worth noting that in order to meet different application requirements, manufacturers will also adjust the thickness and number of layers of glass according to specific circumstances. For example, for high-rise buildings or coastal areas, thicker glass or multi-layer composite structures are usually selected to resist strong winds and salt spray erosion; while for application scenarios that require high light transmittance, low-iron ultra-white glass is preferred to ensure the best visual effect.In order to ensure the performance of curtain wall insulating glass in actual applications, manufacturers will conduct a series of rigorous tests and verifications on the products. From raw material inspection to finished product sampling testing, every link strictly implements the internationally accepted quality management system. For example, by conducting multiple experiments such as weather resistance testing, impact resistance testing and corrosion resistance evaluation on samples, the actual performance of the product can be fully understood, and potential problems can be discovered in time for improvement. This not only improves the overall quality of the product, but also provides users with a reliable use experience.Finally, in the entire production process, strict environmental protection standards are also an important part that cannot be ignored. Many manufacturers are committed to reducing the use of harmful substances in the production process, such as heavy metals such as lead, mercury and cadmium, to ensure that the products comply with the requirements of relevant environmental regulations such as RoHS (Restriction of the Use of Certain Hazardous Substances Directive). In addition, the recyclability and low-energy consumption design of curtain wall insulating glass have also become the focus of more and more manufacturers, promoting green manufacturing and sustainable development.In summary, by using high-quality low-iron ultra-clear glass, tempered glass and advanced composite structure design, curtain wall insulating glass can provide excellent transparency, strength and safety in various application scenarios. Whether in commercial office buildings, residential buildings or public facilities, it is an ideal choice to improve building quality and performance. With the advancement of technology and the application of new materials, we are expected to see more innovative products in the future to provide users with a more perfect user experience.
