POM (Polyoxymethelene)

 
Formula chimica POM

Polyoxymethylene (POM) also known as acetal resin or polyformaldehyde is a crystalline thermoplastic polymer. It is used where excellent dimensional stability, low friction and high resistance are required. Repeating chains are composed of a methylene group and an oxygen atom. The material is very resistant with a relatively low cost. It has a very low friction coefficient and excellent thermal resistance.

Chemical formula POM: (CH2O)n
CAS Number POM: 9002-81-7
Chemical Name POM (IUPAC): poly(oxymethylene)
Recycling Code POM: number 7
Recycling Symbol POM: simbolo riciclo POM

POM commercial names and producers:

 

  • Bergaform (PolyOne)
  • Celcon (Celanese)
  • Delrin (DuPont)
  • Duracon (Polyplastics)
  • Formocon (Formosa Plastics)
  • Heraform (Radici)
  • Hostaform (Celanese)
  • Isoform (Sirmax)
  • Isotal (Sabic)
  • Iupital (Mitsubishi)
  • Kematal (Celanese)
  • Kepital (KEP)
  • Kocetal (Kolon)
  • Latan (Lati)
  • Lucel (LG Chemical)
  • Polyform (Polykemi)
  • Rialform (Rya-Polymers)
  • Sabic POM (Sabic)
  • Ultraform (BASF)
  • Tarnoform (Azoty)
  • Tenac (Asahi)

POM European Distributors:

 

  • BIGLER (Kepital, Heraform)
  • Schulman (Schulaform, Lucent, Accucomp)
  • Mega Polymers (Celcon, Delrin, Hostafrom, Kepital, Tenac, Ultraform)
  • Tekuma (Kepital)
  • KD Feddersen (Hostaform)
  • PolyOne (Delrin)
  • ALBIS (Alcom, Ultraform)
  • Biesterfield (Delrin)
  • Nexeo (Electrafil, HiFill, InLube, Lubricomp, Lubriloy, Stat-kon, Thermocomp, Plaslube, Ultraform)
  • RESINEX (Hostaform, Resinex POM)
  • Ultrapolymers (Tenac-C, Ultraform, Latan, Latilub, Latiohm, Latishield, Latistat, Luvocom, Lubricomp, Lubriloy, Stat-kon, Stat-loy, Thermocomp, Kepital, Tenac,)
  • TER Plastics (Duracon, Tarnoform)

Main compound POM:

 

  • POM-GF30 (Polyoxymethelene with 30% fibre glass)
  • POM with lubricant

 

 

Chemical and physical properties:

POM is used a lot for its excellent mechanical characteristics. It has an excellent creep resistance, low friction, and excellent performance at low temperatures. However, chemically it has some disadvantages such as easy combustion and the production of toxic fumes which consequently severely limit its field of use. POM is divided into two main categories, POM homo, and POM copo which differentiates itself from the former by the presence of groups –CH2CH2O–.

POM standard density: 1,35 - 1,44 g/cm3 (ISO 1183)
POM melting point Tm: 165 - 185 °C
POM glass transition temperature Tg: -50 °C

 

POM market applications

 

  • gears
  • precision mechanics
  • screws
  • plumbing
  • piping
  • zips
  • electronics
  • automotive
  • medical
  • construction
  • clothing
  • musical

POM transformation technologies

 

  • Blow-molding,
  • Compression molding
  • Extrusion
  • Injection molding
  • Rotational molding

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Polymer

POM polyoxymethylene (acetal) resin

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

DELRIN DE 12017 BLACK602
granule/pellet Black 2975 Kg bags on pallet 6.00 €/Kg

Polymer

POM polyoxymethylene (acetal) resin

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

KEPITAL MX25BT03
granule/pellet Natural / Neutral 375 Kg bags on pallet 4.92 €/Kg

Polymer

POM polyoxymethylene (acetal) resin

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

HOSTAFORM C 9021 M XAP²
granule/pellet Black 250 Kg bags on pallet 4.90 €/Kg

Polymer

POM polyoxymethylene (acetal) resin

First choice - virgin QUALITY-PRIME QUALITY-PRIME

LATILUB 73/13-10T Y/15
granule/pellet Black 157 Kg bags on pallet 1.40 €/Kg

Polymer

POM polyoxymethylene (acetal) resin

Off specs QUALITY-PRIME QUALITY-PRIME

DERLIN900NC010
granule/pellet White 1240 Kg bags on pallet 3.50 €/Kg

Polymer

POM polyoxymethylene (acetal) resin

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

Delrin 100 NC010
granule/pellet Natural / Neutral 3600 Kg bags on pallet 2.20 €/Kg

Polymer

POM polyoxymethylene (acetal) resin

Off specs QUALITY-PRIME QUALITY-PRIME

Delrin 300TE NC010
granule/pellet Natural / Neutral 23500 Kg bags on pallet 3.60 €/Kg
 

Polymer

POM polyoxymethylene (acetal) resin

DELRIN DE 12017 BLACK602

2975 Kg 6.00 €/Kg

Polymer

POM polyoxymethylene (acetal) resin

KEPITAL MX25BT03

375 Kg 4.92 €/Kg

Polymer

POM polyoxymethylene (acetal) resin

HOSTAFORM C 9021 M XAP²

250 Kg 4.90 €/Kg

Polymer

POM polyoxymethylene (acetal) resin

LATILUB 73/13-10T Y/15

157 Kg 1.40 €/Kg

Polymer

POM polyoxymethylene (acetal) resin

DERLIN900NC010

1240 Kg 3.50 €/Kg

Polymer

POM polyoxymethylene (acetal) resin

Delrin 100 NC010

3600 Kg 2.20 €/Kg

Polymer

POM polyoxymethylene (acetal) resin

Delrin 300TE NC010

23500 Kg 3.60 €/Kg