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Howto Test Properties of Glass Laminating EVA Interlayer Film

Howto Test Properties of Glass Laminating EVA Interlayer Film

Peter Lin@CNCGLASS_co

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Technical Induction of Polyvinyl Butyral PVB Interlayer Film

Technical Induction of Polyvinyl Butyral PVB Interlayer Film
Technical Induction of Polyvinyl Butyral PVB Interlayer Film
Polyvinyl Butyral PVB Interlayer Film
Polyvinyl butyral PVB interlayer film is the resin that compounded from polyvinyl alcohol reacted with butyraldehyde.  Polyvinyl butyral PVB interlayer film is usually implied in the situation that needs strong binding, toughness and flexibility. Polyvinyl butyral PVB interlayer film as a protective interlayer film, is often used to make automotive laminated glass and architectural laminated glass. Polyvinyl butyral PVB interlayer film has many properties: Impact resistance, great adhesion, sound control, UV-radiation filtered, and good aging resistance.
Technical Parameters of Polyvinyl Butyral PVB Interlayer Film
Note: Following data is general number of PVB Film.
Property Items PVB
Density 1.069g/cm³
Tensile Strength ≥ 20MPa
Elongation  ≥ 200%
Visible Light Transmission Rate 88.5%
Haze ≤ 0.4%
Ultraviolet Radiation Blocking Rate 99%
Weather Resistance 
(85℃,85% Humidity,UV,1000 hrs) <3.0% Change of Transmittance 
Moisture Absorption  0.4-0.6%
Shrinkage  <6%
High Temperature Resistance Qualified
Moisture Resistance Qualified
Impact Resistance Against Shot-Bag Qualified
Radiation Resistance Qualified
Ball Impact Peeling Resistance Qualified
Polyvinyl Butyral PVB Interlayer Film for Laminated Glass
Polyvinyl Butyral PVB interlayer film have the impact resistance. The single  flat glass would lead to serious injuries to human being or other properties when it’s broken, but Laminated glass with Polyvinyl Butyral PVB interlayer film can stick the glass together when it’s impacted, which can remain it’s safety. The safety of the laminated glass with Polyvinyl Butyral PVB interlayer film is popularly recognized as safety glass in architectural design.
And Polyvinyl Butyral PVB is good at penetration resistance, so is better than tempered glass in Automotive windshield implication.

CNC-INTERLAYER TECH:
【1】EVA INERLAYER FOR ARCHITECTURAL LAMINATED GLASS
【2】SMART FILM FOR PRIVACY SWITCHABLE GLASS
【3】PVB INTERLAYER FOR AUTOMOTIVE WINDSHIELD GLASS
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