safety interlayer

Laminated glass with sandwich structure such as glass/ polymer interlayer/ glass is a kind of safety glass that can prevent ordinary glass from hurting people by the fragment.

具有三明治结构（如：玻璃/高分子中间膜/玻璃）的夹层玻璃是一种可防止普通玻璃因破碎而伤人的安全玻璃。

The sandwich sandstone with weak interlayer such as thin coal bed, together with bedding plane and joint crack, can form unstable blocks, which threat the engineering safety.

研究部位岩体为层状砂岩，含有软弱夹层，其显著特点是该砂岩的岩组中含有薄煤层，与层理、节理裂隙等的组合易形成不稳定块体，对工程安全造成危害。

Common Problem and Improving Method of Laminated Safety-glass with PVB Film as Interlayer

使用PVB膜片作为安全玻璃夹层的常见问题与改进方法