Scanning electron microscopy sample production method of coated white cardboard fracture

Abstract

The invention provides a scanning electron microscopy sample production method of a coated white cardboard fracture. The method comprises the following steps: shearing a coated white cardboard to form a long strip, wherein one end of the long strip along the length direction is sharp-pointed, and the width of the tip is less than or equal to 0.5 mm; and slicing the tip of the long strip through adopting a mechanically propelled ultrathin slicing machine by using a diamond cutter at a slicing rate of below 0.5 mm/sec in order to obtain the coated white cardboard fracture. The coated white cardboard fracture produced by using the method is clean and flat without pollutant shielding, so the clear coated white cardboard fracture microscopic picture of the sample fracture is obtained, and analysis test of the thickness of a white cardboard coating and the particle size and the shape of particles is realized by using a scanning electron microscope.

Description

technical field [0001] The invention relates to a scanning electron microscope sample preparation method, in particular to a scanning electron microscope sample preparation method for coating the fracture of a white paperboard. Background technique [0002] White cardboard is a kind of cardboard with a smooth and white front and a smoother back. Coated white paperboard refers to the processed paperboard made by coating and finishing the surface of the original paperboard, and its weight is generally 200g / m 2 up to 400g / m 2 between. The whiteness, smoothness, glossiness and surface strength of the coated white paperboard are good, and it has good strength performance, so it is suitable for high-speed color printing and can meet the packaging requirements. It has become one of the most widely consumed paper types in my country. [0003] White cardboard is composed of surface layer, core board and bottom layer. The core layer of white cardboard is generally made of mechanic...

AI Technical Summary

Problems solved by technology

However, when cutting directly with scissors, due to the large difference in mechanical properties between the inorganic coating and the core fiber, it is difficult to obtain a flat fracture that meets the scanning electron microscope observation

Using the metallographic polishing method, the residual polishing material is easy to form pollutants, which affects the scanning electron microscope observation effect of the paper surface coating

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