Functional rubber application areas

(1) Ultra high physical performance

Rubber and plastic blending methods are generally adopted. For example, hydrogenated nitrile rubber is used as a substrate and blended with polymethyl methacrylate (ZMA). A nanoscale composite material was obtained by using ZMA as a dispersed phase. In the composite, there are both self-crosslinking of HNBR, ZMA aggregation and HNBR/ZMA interfacial grafting reaction, thereby imparting ultra-high strength to the material.

(2) Ultra low hardness

Very low hardness is also a special function that some products demand. At present, there is a method for blending EPDM with a large amount of oil, the hardness can be reduced to 0 to 18 degrees (Shore A), and has anti-compression deformation, weather resistance, ozone resistance and heat resistance. As a sealing material, its sealing property is better than that of butyl rubber.

(3) Self-lubricating

A common way to reduce the friction of the rubber surface is to apply a liquid lubricant to the surface, which has the undesirable result of contamination. If you add a solid lubricant instead, the problem can be solved. Taking nitrile rubber as an example, the friction coefficient of any lubricant is 2, the friction coefficient is reduced to 0.7 after adding a solid lubricant, and the noise is also greatly reduced.

(4) Electromagnetic shielding

Surface coating treatment is generally used to minimize electromagnetic interference. The shielding material used is mostly made of metal powder and uniformly mixed into the rubber compound.

(5) Pressure sensitive

It is generally used to make the conductive rubber both pressure sensitive and used for pressure sensors.

(6) Photosensitivity

It is made of cyclized rubber and added with azo compounds. It is mostly used in semiconductor components and integrated circuits.

(7) Shape memory

This is a rubber-specific function that is based on elastic recovery. Currently widely used in packaging, wire, cable joints and terminal insulation protection.