There is no fixed definition but the plastic that has more than 60MPa tensile strength, more than 2GPa elasticity, more than 50J/m impact strength, continuous using temperature is more than 100℃ and low creep is called engineering plastic. Within engineering plastics, those who have more than 150℃ of heat transformation temperature and superior mechanical characteristic are called super engineering plastic (High performance plastic). |
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Types of Super Engineering Plastic Balls |
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◆Teflon® balls
Teflon® (PTFE) is the plastic that has fluorosis molecule and the official name is polytetrafluoroethylene and it has high chemical resistance, weather resistance, electrical insulative, friction coefficient (lubricity) compared with other heat reversible plastics.
Fluoric plastic is the essential material for semiconductor, precision and high-tech industries.
* Teflon® is the registered trademark of U.S. Dupon. |
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◆Peek balls
The official name of Peek is polyetheretherketone, and is a totally new super engineering developed by ICI.
It is very pure material with high thermal resistance, mechanical characteristics, chemical resistance, flame resistance, safety and sanitary (UL94V-0), low smoke amount upon burning, low elution of gas/ion/molucules. |
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◆Vespel® balls
Vespel® (Polyimide) is a thermosetting plastic that has excellent thermal resistance and mechanical characteristics.
The continuous using temperature of Vespel is 250℃ - 300℃ and is a symbolic existence of alternative metal material.
However, the use is limited to airplane and aerospace since it is very expensive.
It is starting to be used for the multi-layer computer circuit board, VTR, flexible print circuit board, precision instrument.
Vespel® has the highest thermal resistance and friction resistance and it does not have disadvantages that metal has.
So it is expected to be used for a wide variety of areas as a new material.
* Vespel® is the registered trademark of U.S. Dupon. |
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