PVB玻璃夹层膜厚度一般为0.38mm和0.76mm两种，建筑级pvb中间膜机组，对无机玻璃具有良好的粘结性，具有透明、耐热、耐寒、耐湿，机械强度高等特性。 PVB薄膜主要用于夹层玻璃，是在两块玻璃之间夹进一层以聚乙烯醇缩丁醛为主要成分的PVB薄膜。 At present, there are two main methods for the production of PVB interlayer film, one is the over-roll method and the other is the water-pass method. The over-roll method is to produce a film by casting two rolls or three rolls (with a light roll and a pattern roll). The over-roll method has low investment, the technology is relatively mature, and the equipment is relatively easy to operate. The water-passing method is a process that is generally believed to produce a film with better whiteness and a more uniform pattern. It uses a water tank to cool the characterization instead of a roller, and then removes water, thickness, oven, cooling, separator composite, and traction. Finally, the volume is collected. Because the over-water method has more advantages than the over-roll method, it is used by more and more manufacturers. The following points in the production process of the water-passing method require special attention: Electrical control. As a high-end application product, the specifications of the film are very high, and only highly intelligent automatic control can meet the requirements of high-quality products. Among them, the pressure of the extruder is self-adjusting, and the tension control of the winding is more important. PVB中间膜是由聚乙烯醇缩丁醛树脂经增塑剂塑化挤压成型的一种高分子材料
