Polyoxymethylene
- CAS No.
- 9002-81-7
- Chemical Name:
- Polyoxymethylene
- Synonyms
- F 20;100P;LA 543;PARAFORM;Takafest;POLYACETAL;Tenac 7010;Tenac 5010;Tenac 3010;ACETAL RESIN
- CBNumber:
- CB9233203
- Molecular Formula:
- C3H6O3X2
- Molecular Weight:
- 90.08
- MDL Number:
- MFCD00133991
- MOL File:
- 9002-81-7.mol
- MSDS File:
- SDS
| 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) |
| Flash point | 158 °F |
| solubility | chlorophenol above 70°C: soluble |
| form | prilled |
| Dielectric constant | 3.6（Ambient） |
| Indirect Additives used in Food Contact Substances | POLYTRIOXANE |
| FDA UNII | QHG55SH7ER |
| EPA Substance Registry System | Poly(oxymethylene) (9002-81-7) |
Polyoxymethylene Chemical Properties,Uses,Production
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.
Polyoxymethylene Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21688 | 55 |
| Shaanxi Didu New Materials Co. Ltd | +86-89586680 +86-13289823923 | 1026@dideu.com | China | 9020 | 58 |
| Shanghai Acmec Biochemical Technology Co., Ltd. | +undefined18621343501 | product@acmec-e.com | China | 33350 | 58 |
| Chemwill Asia Co.,Ltd. | 86-21-51086038 | chemwill_asia@126.com | CHINA | 23931 | 58 |
| Shandong fengpan New Material Co., Ltd | 18560028598 | 2584792069@qq.com | China | 75 | 58 |
| Adamas Reagent, Ltd. | 400-6009262 16621234537 | zhangsn@titansci.com | China | 14113 | 59 |
| Shanghai Macklin Biochemical Co.,Ltd. | 15221275939 15221275939 | shenlinxing@macklin.cn | China | 15885 | 55 |
| Chizhou Kailong Import and Export Trade Co., Ltd. | xg01_gj@163.com | China | 9503 | 50 | |
| Shanghai Synchem Pharma Co., ltd | 21-619849051-1 18016477331 | synchempharma@aliyun.com | China | 6456 | 55 |
| Shanghai Orgchem Co.,Ltd. | +86-21-5877 1921 | info@chemofchina.com | China | 9661 | 55 |