Enhanced protection with specialty films for security glazing

Dureflex? A4700 thermoplastic polyurethane (TPU) film has good optical properties and excellent adhesion to glass, PC and PMMA sheets, making it a versatile interlayer to use between the various materials that make up bullet-resistant glass. TPU film also imparts toughness to the laminate, increasing the impact resistance due to the excellent puncture strength and elongational properties of the film. When lightweighting is needed, a layer of glass can be substituted with polycarbonate and still offer enhanced protection because of the excellent mechanical properties of TPU. Unlike other interlayer films, TPU film does not have plasticizers or require special handling or storage of the material. Our Dureflex? TPU film further enables the integration of electronics or additional functionality into glass-clad systems such as those needed for laminated smart glass or PV solutions.

Processing

Dureflex? A4700 can be laminated via autoclave processing to achieve excellent adhesion to glass and plastics with a recommended temperature range range of 100 – 130°C. Pressure for this process can vary from as little as 25 psi (1,5 bar) to as much as 200 psi (15 bar). Laminating can be done using vacuum bag or vacuum ring de-airing, or nip-roll / calender laminating for symmetrical glass-clad configurations.

Security glazing structures

Bullet-resistant glass is constructed with stacked layers of glass and plastic sheets with interlayers of film to bond the sheets. The stacked construction is de-aired and heated to seal all layers together and then fully bonded in an autoclave. Dureflex? A4700 can effectively bond all layers of glass, polycarbonate (PC) film/sheet or PMMA film/sheet. The level of protection can be tuned by the number, type and thickness of the layers. A final layer of PC film/sheet may be placed on the safe side, or inside, to protect occupants against spalling, i.e. ejected shards of glass, in the event of an impact

Benefits of Dureflex? A4700 TPU film

? Excellent bondability to glass, acrylic and polycarbonate 

? Elasticity for bridging CTE of differing materials

? Absence of plasticizers 

? Excellent energy dispersive characteristics 

? Excellent UV resistance and fatigue strength 

? Highly durable

 ? Low haze and good optical clarity after processing

東莞市致唯新材料有限公司成立于2016年，前身為深圳市南山區(qū)萊昴塑化廠---是一家致力于為客戶提供進(jìn)口導(dǎo)電材料，防靜電材料的銷售型企業(yè)。
 公司主要經(jīng)營(yíng)：各種導(dǎo)電炭黑，DENKA黑，進(jìn)口超導(dǎo)碳黑，碳納米管、導(dǎo)電母粒及其他導(dǎo)電材料;塑料抗靜電劑，塑料分散劑，橡膠助劑，防靜電硅膠制品等各類進(jìn)口或自產(chǎn)材料。
公司致力于
本著“以誠(chéng)為本，客戶至上”的原則，為客戶提供精準(zhǔn)化產(chǎn)品解決方案，用心服務(wù)客戶。以“公平 公開(kāi) 品質(zhì)”為理念，與各同行及客戶共同發(fā)展。