How to improve the hardness of modified plastics?

Hardness refers to the ability of a material to resist the pressing of other hard objects into its surface. The hardness value is a conditional quantitative reflection of the hardness of the material. It is not a simple and certain physical quantity. How can the hardness of the modified plastic be improved? ?
The hardness value depends not only on the material itself, but also on the test conditions and the measurement method, that is, the different hardness measurement methods, and the hardness values ​​measured for the same material are not the same. Therefore, to compare the hardness between materials, the hardness values ​​measured by the same measurement method must be comparable.
The methods commonly used to indicate hardness are as follows:
a, Shore hardness
b, Rockwell hardness
c, Mohs hardness
Add hardness of modified plastic
The hardness of the added modified plastic refers to a modification method in which a hard additive is added to the plastic. Commonly used hardness fillers are rigid inorganic fillers and fibers.
Surface treatment improves the hardness of plastics
The method for improving the surface hardness of plastics means that only the hardness of the appearance of the plastic product is improved, and the hardness inside the product is unchanged. This is a low cost hardness improvement method.
This modification method is mainly used for housings, decorative materials, optical materials, and daily necessities. This modification method mainly includes three methods of coating, plating and surface treatment.
Blending and compounding to improve the hardness of plastics
Blending improves the hardness of plastics
The improved method of plastic blending is to mix high hardness resin in low hardness resin to improve its overall hardness. Common blending resins are: PS, PMMA, ABS and MF, etc. The resins to be modified are mainly PE, PA, PTFE and PP.
Composite improved plastic hardness
The method of improving the hardness of the plastic composite is to combine a high hardness resin on the surface of the low hardness plastic product. This method is mainly suitable for extrusion products such as plates, sheets, films and pipes. Commonly used composite resins are PS, PMMA, ABS and MF.

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