How to measure and analyze the hardness of PP Self Wrap Braided Sleeve?

According to the applied force and displacement of the PP self-wrapping Braided Sleeve, the hardness measurement can be defined as large size, micron or nanoscale.

The measurement of the macroscopic hardness of a material is a fast and simple method of obtaining data on the mechanical properties of bulk materials from small samples. It is also widely used in the quality control of surface treatment process. However, large indentation depths would be too large relative to surface-scale features when it comes to coatings and surface properties that are important, for example, for friction and wear processes.
When the material has a fine microstructure, is heterogeneous, inhomogeneous, or prone to cracking, macroscopic hardness measurements will be highly variable and cannot identify individual surface features. Here, microhardness measurements are appropriate.
Microhardness: is the hardness of a material determined by pressing an indenter such as a Vickers or Knoop indenter into the surface of the material under a load of 15 to 1000gf; often, the depressions are so small that they must be measured with a microscope . Capable of determining the hardness of different microscopic components within a structure, or measuring steep hardness gradients such as those encountered in hardening, conversion from microhardness values to tensile strength and other hardness scales (e.g. Rockwell) can be used for Many PP Self Wrap Braided Sleeve and other silicone rubber products. In summary, a microindenter works by pressing a tip into a sample and continuously measuring: applied load, penetration depth and cycle time.