纸和纸板 内结合强度的测定

[中文适用范围]： 本文件规定了一种测量纸张或纸板试样快速分层所需能量的方法。通过具有规定质量并在规定速度下运动的摆锤，使试样在“Z”方向（即厚度方向）上产生断裂。该方法适用于单层和多层纸张和纸板，包括涂布纸和与合成聚合物薄膜层压的纸板。该方法特别适用于在印刷或加工过程中可能受到Z方向快速冲击、脉冲或冲击载荷的纸张和纸板。试验过程要求在试样两侧施加双面胶带，并在压力下使其粘附。因此，该方法不适用于在受压时可能产生结构损伤或孔隙率较高、允许胶带粘合剂迁移至试样内部或穿透试样的材料。 [外文原描述]： This document specifies a method to measure the energy required to rapidly delaminate a test piece of paper or board. Rupture of the test piece in the “Z” or thickness direction is initiated by a pendulum having a defined mass, moving at a defined velocity. The procedure is suitable for both single- and multi-ply papers and boards, including coated sheets and those that are laminated with synthetic polymer films. It is particularly suitable for papers and boards that can be subjected to z-direction rapid impacts, impulses or shock loads during printing or conversion. The test procedure entails the adherence of double-sided adhesive tape to both sides of the test piece under pressure. For this reason, the method is unsuitable for materials that can be structurally damaged by compression or are porous enough to permit migration of the tape adhesive into or through the test piece.