POM Anti Static Compound

Aabstract

POM (polyoxymethylene, also known as polyacetal or acetal or Delrin) is a semi-crystalline, thermoplastic material, which is characterised by its good mechanical properties, high dimensional stability and excellent sliding and wear behaviour.

POM anti static compound is one of ESD protection materials which is based on POM resin ,with dosage level of 10%-25% permanent anti static agent added, can achieve surface resistivity value 10E7-10E10 Ohms/sq, long-term anti static effect,the anti static compound can easily be processed by extrusion and injection molding,suitable for colorable matching,offer reliability and value for applications that requires electro static dissipative. And the resistivity value will not changed after machining or surface grinding.This materials is suitable for automatic lathe machining, especially suitable for the manufacture of precision parts.

POM anti static compound properties

PERMANENCE

Specific Gravity       1.36     D792

Molding Shrinkage   1.40 to 2.60 %   D955

MECHANICAL

Impact Strength, Izod    53 J/m    D256

Tensile Strength         41 MPa     D638

Tensile Elongation 9.5 %     D638

Tensile Modulus 1700MPa   D638

Flexural Strength 60 MPa    D790

Flexural Modulus      2150 MPa   D790

ELECTRICAL

Surface Resistivity  1.0E+8 - 9.9E+11 ohm/sq  D257(23°C, 50%R.H)

GENERAL PROCESSING FOR INJECTION MOLDING

Injection Pressure   69 - 103 MPa

Melt Temperature 185- 210 °C

Mold Temperature  85 °C

Pre-Drying          2 hrs @ 80 °C

Advantages of POM antistatic compound

High chemical resistance.

High dimensional stability.

Low moisture absorption.

Excellent sliding properties.

Little tendency to creep.

Good self lubrication and no water absorption.

Good machinability,favourable electrical and dielectric behaviour.

High abrasion resistance,ideal combination of strength, stiffness and toughness.

Applications of POM antistatic compound

The POM anti static compound can be used for the following engineering applications: Gear wheels, cams, heavily load bearings and rollers, valve seats, snap-fit assemblies.Mechanical transmission components, precision mechanical components, electronic and electrical parts , etc.

INCHR also provides conductive PP compound, conductive PS compound, conductive PE compound, and conductive PET compound for ESD protection. For more information, please contact our technician via mailbox mike@inchr-esd.com or visit www.inchr-esd.com.