| Identification | Back Directory | [Name]
Polyoxymethylene | [CAS]
9002-81-7 | [Synonyms]
F 20
100P
LA 543
Takafest
PARAFORM
Tenac 7010
Tenac 5010
POLYACETAL
Tenac 3010
Polymethanal
ACETAL RESIN
Tenac PT 300
Tenac LA 543
Tenac 3013ABK
POLY(TRIOXANE)
POLYOXMETHYLENE
PARAFORMALDEHYD
Poly-s-trioxane
POLYOXYMETHYLENE
POLYFORMALDEHYDE
POLYACETAL RESIN
FORMALDEHYDE RESIN
Polymethylene oxide
polyoxymethylene rod
Poly(1,3,5-trioxane)
polyformaldehyde（POM）
Poly(methylene ether)
F 20 (polyoxyalkylene)
alpha-Poly(oxymethylene)
Formaldehyde, homopolymer
1,3,5-Trioxane, homopolymer
Modified polyoxymethylene POM
poly(oxymethylene) macromolecule
polyacetalresin(polyformaldehyde)
POLY(OXYMETHYLENE), ACETATE END-CAPPED | [EINECS(EC#)]
200-001-8 | [Molecular Formula]
C3H6O3X2 | [MDL Number]
MFCD00133991 | [MOL File]
9002-81-7.mol | [Molecular Weight]
90.08 |
| Chemical Properties | Back Directory | [Melting point ]
175 °C
| [density ]
1.42 g/mL at 25 °C
| [vapor density ]
1.03 (vs air)
| [vapor pressure ]
<1.45 mm Hg ( 25 °C)
| [Fp ]
158 °F
| [solubility ]
chlorophenol above 70°C: soluble
| [form ]
prilled
| [Dielectric constant]
3.6（Ambient） | [EPA Substance Registry System]
Poly(oxymethylene) (9002-81-7) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn | [Risk Statements ]
31 | [Safety Statements ]
36 | [RIDADR ]
UN 2213 4.1/PG 3
| [WGK Germany ]
3
| [RTECS ]
RV0540000
| [TSCA ]
TSCA listed |
| Hazard Information | Back Directory | [Chemical Properties]
Polyoxymethylene (POM), also known as acetal or polyacetal, is a high-performance engineering thermoplastic valued for its strength, stiffness, and low friction. This semi-crystalline polymer offers excellent dimensional stability and wear resistance, making it ideal for precision parts in mechanical and automotive applications.
Thermal stability: POM possesses an excellent thermal stability, which can endure temperature changes without significant loss of physical properties. This stability makes it ideal for parts requiring high precision and dimensional stability.
Chemical resistance: The material is resistant to a wide variety of solvents and chemicals, including neutral chemicals, aliphatic hydrocarbons, and most oils and greases.
Ultimate Tensile Strength 69 - 83 MPa
Yield Tensile Strength 65 - 69 MPa
Ultimate Compressive Strength 110 MPa
Young’s Modulus (E) 2.9 - 3.2 GPa
Flexural Modulus 2.41 - 3.10 GPa
Elongation at Break 40 - 75%
Rockwell Hardness (R) 120
Melting Point 175 °C
Thermal Conductivity 0.37 W/m·K
Specific Heat Capacity (Cp) 1464 J/kg·K
Coefficient of Thermal Expansion (αL) 8.5×10-5 1/°C
Relative Permittivity (@1 MHz) (εr) 3.8
Electrical Resistivity 1015 Ω·cm
Dielectric Field Strength (Ed) 200 kV/cm | [Uses]
Acetal resins, also known as polyoxymethylene and polyformaldehyde, are polymers of pure formaldehyde with unusually good mechanical properties. They are resistant to elongation and impact and replace light metals in many uses. The finished polymer has not been related to adverse health effects in humans or animals. They can be thermally degraded, for example, in an overheated molding machine, to produce formaldehyde gas, with its well-recognized irritant and sensitizing properties. | [Definition]
ChEBI: A poly(alkylene oxide) macromolecule, composed of repeating methyleneoxy units. | [Industrial uses]
Polyoxymethylene, or polyacetal, resins arepolymers of formaldehyde. With high molecularweights and high degrees of crystallinity, theyare strong and tough and are established in thegeneral class of engineering thermoplastics.
Although somewhat similar to polyethylenein general molecular structure, polyacetal moleculespack more closely, and attract each otherto a much greater extent, so that the polymer isharder and higher-melting than polyethylene.Polyacetals are typically strong and tough,resistant to fatigue, creep, organic chemicals(but not strong acids or bases), and have lowcoefficients of friction. Electrical properties arealso good. Improved properties for particularapplication may be attained by reinforcementwith fibers of glass or polytetrafluoroethylene.
The combination of properties has led tomany uses such as plumbing fittings, pump andvalve components, bearings and gears, computerhardware, automobile body parts, andappliance housings. Other aldehydes may bepolymerized in a similar way. |
|
| Company Name: |
Rhawn Reagent
|
| Telephone: |
400-400-1332688 18019345275 |
| Website: |
http://www.rhawn.cn |
|