How to improve the hardness of modified plastics

Hardness refers to the ability of a material to resist being pressed into its surface by other harder objects. The magnitude of the hardness value is a conditional quantitative reflection of the softness and hardness of the material, and it is not a simple and deterministic physical quantity. So, what is the hardness of modified plastics? How to improve the hardness of modified plastics?
The magnitude of the hardness value depends not only on the material itself, but also on the testing conditions and measurement methods, that is, different hardness measurement methods may result in different hardness values for the same material. Therefore, in order to compare the hardness values between materials, it is necessary to measure the hardness values using the same measurement method in order to have comparability.
There are several methods commonly used to represent hardness, including:
a、  Shore hardness
b、  Rockwell hardness
c、  Mohs hardness
Hardness of added modified plastics
The hardness of modified plastics refers to a modification method of adding hard additives to plastics. The commonly used hardness fillers are rigid inorganic fillers and fibers.
Surface treatment improves the hardness of plastics
The method of improving the surface hardness of plastic refers to only improving the hardness of the outer surface of the plastic product, while keeping the hardness inside the product unchanged. This is a low-cost method for improving hardness.
This modification method is mainly used for shells, decorative materials, optical materials, and daily necessities. This modification method mainly includes three methods: coating, plating, and surface treatment.
Blending and compounding to improve the hardness of plastics
Blending improves the hardness of plastics
The improvement method of plastic blending is to mix low hardness resin with high hardness resin to increase its overall hardness. Common blend resins include PS, PMMA, ABS, and MF. The resins that need to be modified are mainly PE, PA, PTFE, and PP.
Composite improvement of plastic hardness
The method of improving hardness through plastic composite is to composite a layer of high hardness resin on the surface of low hardness plastic products. This method is mainly suitable for extruding products such as boards, sheets, films, and pipes. Common composite resins include PS, PMMA, ABS, and MF.