Copolyformaldehyde Resin, Acetal copolymer, polyxymethylene, POM CAS NO.:24969-26-4, 1,3,5-Trioxane,polymer with 1, 3-dioxola

Copolyformaldehyde Resin, Acetal copolymer, POM (Polyacetal), CAS NO.:24969-26-4, 1,3,5-Trioxane,polymer with 1, 3-dioxolane,

   Copolyformaldehyde Resin,   Copolyformaldehyde , Acetal copolymer, polyxymethylene, POM(Polyacetal) CAS NO.:24969-26-4, 1,3,5-Trioxane,polymer with 1, 3-dioxolane.  Copolyformaldehyde (POM) is an excellent engineering plastics, in foreign countries have "wins Steel", "super steel" is called. pom has been widely used in electronic and electrical, mechanical , instruments, daily-use light industrial, automotive, building materials, agriculture and other fields. In many new fields of applications such as medical technology, sports equipment, etc., POM has a very low coefficient of friction and good geometric stability, particularly suited to the production of gears and bearings. It also has properties as a result of high temperature, it is also used pipe device (pipe valves, pump casing), lawn equipment, etc.

 M90      Acetal (POM) Copolymer

General     Material Status  Standard-flow grade, with minimized mold deposit

Features:  Acid Resistant   Good Abrasion Resistance   High Hardness  Bacteria Resistant   Good Chemical Resistance  High Stiffness  Base Resistant   Good Dimensional Stability  Low Friction

 Solvent Resistant   Good Electrical Properties   Low Warpage  Fatigue Resistant  Good Flow 

Uses:  Automotive Electonics  Fittings  Thin-walled Parts  Automotive Exterior Parts  Gears  Valves/Valve Parts   Aumomotive Under the Hood  pining  Wheels Bearings  Pump Parts

Forms:  Pellets       Processing Method:   Injection Molding and Extrusion

Physical properties                         Value   Unit    Test Standard

Density                                             1.41   g/cm3        ISO 1183

Melt Mass-Flow Rate (MFR) (190C/2.16Kg) 9 g/10  min ISO 1133

Water Absorption (24 hr, 23 C)         0.6     %            ISO 62

Mechanical properties                       Value   Unit    Test Standard

Tensile Stress at yield                         62    MPa       ISO 527-2

Tensile modulus                                2650  MPa        ISO 527-2

Strain at break                                    35     %         ISO 527-2

Flexural strength                                 88    MPa       ISO 178

Flexural modulus                              2600   MPa       ISO 178

Charpy notched impact strength        6.0    KJ/m2    ISO 179/1eA

Thermal properties                          Value   Unit    Test Standard     

Heat Deflection Temperature 1.8Mpa, Unannealed  95    C        ISO 75

Flammability properties                      Value   Unit    Test Standard

Flame Rating-UL                            HB   class        UL94

Notes to users:Values shown are based on testing of laboratory test specimens and represent data that fall within the standard range of properties for natural materal. These values alone do not represent a sufficient basis for any part design and are not intened for use in establing maximum, minimum, or ranges of values for specification purposes. Colorants or other additives may cause significant variations in data valuse.  

Material Drying : 80-90C, 3-4 hours    Cylinder Temperature: Nozzle :180-210 (C)  Front Section :190-210 (C)  Center Section : 170-200 (C)  Rear Section : 160-180 (C)  Melt Temperature : 180-210 (C)   Mold Temperature : 60-90 (C) (Precision parts are often molede at a mold at a mold temperature as high as 120C)    Pressure : Injection Pressure : 50-100 Mpa  Holding Pressure : 30-80 Mpa Back Pressure:0-0.5 MPa  Screw Rotational Speed : 50-120 rpm 

Recommended Extruded Conditions   Standard extruders with grooved feed zone and short compression screws (min. 25 D) will fit. Melt temperature : 180-190C

Acquired Certifications of  POM    RoHS test  PFOS test Halogen element test  SVHC test   DMF test  EN1186btest  DBT&TBT test  EN71-3 test  Certification W18 test  Certification FDA  Certification UL  Certification NSF