The PVB interlayer is a film made of polyvinyl butyral resin plasticized and extruded with a plasticizer. It is widely used in the manufacture of laminated glass and other fields, and has the following application advantages:
- Good bonding performance: The PVB interlayer has adhesive force to glass, which can firmly bond two or more pieces of glass together to form a stable laminated structure, effectively preventing the glass fragments from falling off and improving the safety of the glass.
- High transparency: It has high optical transparency, enabling the laminated glass to maintain good light transmission performance. It can allow the amount of light to pass through without significantly affecting the visual effect, meeting the requirements for lighting and vision of glass in the construction, automotive and other fields.
- Strong impact resistance: The PVB interlayer has good flexibility and impact resistance. When the glass is impacted by external forces, it can absorb and disperse the impact force, reducing the possibility of the glass breaking. Even if the glass is broken, the PVB interlayer can bond the fragments together, preventing the fragments from splashing and hurting people, and enhancing the safety of the glass.
- Good sound insulation performance: The PVB interlayer can effectively block the transmission of sound, reducing the ingress of external noise to a certain extent and improving the acoustic comfort indoors or in vehicles, creating a quiet spatial environment for people.
- Anti-ultraviolet performance: The PVB interlayer can absorb part of the ultraviolet rays, effectively blocking the damage of ultraviolet rays to indoor items and human bodies, reducing problems such as fading and aging caused by ultraviolet rays. It has a certain anti-ultraviolet function, helping to protect indoor furniture, decorative items and other items.
- Good weather resistance: It has good weather resistance and can maintain stable performance under different environmental conditions. It is not easily affected by factors such as temperature, humidity, and light to have obvious performance changes. It can maintain its bonding performance, transparency, and mechanical properties for a long time, ensuring the service life of the laminated glass.