How To Adjust The Hardness Of Modified Plastics?

Hardness refers to the ability of a material to resist other hard objects into its surface,

The size of the hardness value is a qualitative quantitative representation of the soft and hard degree of the material. It is not a simple and definite physical quantity.So what’s the hardness of the 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 test conditions and the measurement method. It means different hardness measurement methods, the same material measured hardness values are not the same. Therefore, to compare the hardness between the materials, it is necessary to measure the hardness with the same method of measurement.

There are several methods commonly used to indicate hardness:

A Shore Hardness

B Rockwell Hardness

C Moh’s Hardness

Add hardness of modified plastics

The hardness of adding modified plastics refers to a modification method for adding hard additives in plastics. The common hardness filling agents are rigid inorganic fillers and fibers.

Surface treatment to improve the hardness of plastics

Plastic surface hardness improvement means only to improve the hardness of the appearance of plastic products. The hardness of the interior of the product is unchanged. This is a low cost method for improving hardness.

The modified method is mainly used for shells, decorative materials, optical materials and daily necessities, etc.. The modified method mainly includes two methods:

coating and surface treatment.

Blending and compounding to improve the hardness of plastics

Blending improved hardness of plastics

Plastic blending improvement method, that means in low the hardness resin, mixed with high hardness resin, to improve its overall hardness. The common blend resins are: PS, PMMA, ABS and MF, etc. the modified resins are mainly PE, PA, PTFE and PP.

Hardness of compound improved plastics

Plastic composite hardness improvement method, that means in the low hardness of plastic products on the surface of a layer of hardness resin. This method is mainly suitable for extrusion products such as plates, sheets, membranes and tubes. The commonly used composite resins are PS, PMMA, ABS and MF.

Tongxiang Longcheng Plastic Co., LTD. has nearly 30 years' experience in the development and production of PVC granule.

Professional technical service teams can provide one-stop system solutions for customers.

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