目前,我国汽车玻璃主要为钢化和夹层两个品种,而进口车几乎都是夹层玻璃。这种称之为合成玻璃的是在内外二片玻璃之间嵌入透明的中间膜所构成(中间膜材料为聚乙烯醇缩丁醛)。与钢化玻璃相比,这种合成玻璃具有更高的安全性,但是,也有不足之处:当汽车高速行驶而受到小石子等异物冲击时,会在外面 At present, China’s automobile glass is mainly toughened and laminated two varieties, while the imported cars are almost all laminated glass. This is called the synthetic glass is composed of two glass inside and outside the transparent film between the intermediate structure (intermediate film material is polyvinyl butyral). Compared with toughened glass, this synthetic glass with higher safety, but there are also shortcomings: when the car at high speed by the impact of foreign bodies such as pebbles, it will be outside