| Customization: | Available |
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| CAS No.: | 9002-88-4 |
| Formula: | 9002-88-4 |
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| Definition | Polyoxymethylene (POM), also known as acetal, polyacetal, and polyformaldehyde, is used in precision parts requiring high stiffness, low friction, and excellent dimensional stability. |
|---|---|
| Mechanical Properties: | High strength, hardness, and rigidity at temperatures as low as -40°C. Its tensile strength typically ranges from 55 to 80 MPa (8,000 to 12,000 psi) depending on the grade. |
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Density: |
The density of POM ranges from 1.41 to 1.43 g/cm³. |
| Thermal Properties |
polyoxymethylene melting point is between 165 and 175°C (329 to 347°F) and the glass transition temperature is around -50 to -40°C. |
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Chemical Resistance: |
Good resistance to solvents, fuels, and many chemicals; however, it is not resistant to strong alkalis and oxidants. |
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Wear Resistance: |
Low coefficient of friction, making it suitable for applications involving moving parts. |
| Appearance: | Generally opaque white due to its high crystalline composition, but it can be produced in various colors. |
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Applications |
They are used in high-performance engineering components like gear wheels, eyeglass frames, ball bearings, ski bindings, fasteners, gun parts, knife handles, and lock systems. Common in automotive and consumer electronics industries. |
When it comes to choosing between homopolymer POM and copolymer POM, understanding their differences can help you make the best decision for your specific needs. Let's break down their performance and application differences:
Homopolymer POM generally boasts greater mechanical strength and stiffness compared to copolymer POM. This makes it a strong contender for applications that require robust structural integrity.
On the other hand, copolymer POM is more resilient to thermal deterioration. This quality makes it ideal for applications that involve higher temperatures, where heat resistance is crucial.
When it comes to chemical exposure, copolymer POM often outperforms homopolymer POM in resisting certain chemicals and solvents. This enhanced resistance opens up new possibilities for its use in various environments.
Copolymer POM also features a lower melt viscosity, which simplifies manufacturing processes, especially when creating complex part geometries. This can lead to more efficient production methods.
Applications Differences:
In the automotive sector, while copolymer POM is suitable for parts that require superior heat stability and chemical resistance, homopolymer POM is typically favored for applications demanding strong mechanical strength and wear resistance.
For medical applications, copolymer POM is often the preferred choice due to its biocompatibility and ability to withstand cleaning solvents, ensuring safety and reliability in healthcare settings.
In electronics and electrical engineering, copolymer POM is commonly used where higher chemical and heat resistance is needed, making it an excellent option for various components.
Because of its many well-known qualities, polyoxymethylene is an excellent choice for precision engineering applications. Let's examine each of these characteristics in more detail:
| Classification | Features | Grade |
|---|---|---|
| Standard | Standard | M90-44 |
| Standard | High viscosity | M25-44 |
| Standard | High fluidity and short molding cycle | M270-44 |
| Weather resistance | Standard | M90-45 |
| Sliding property | High sliding property | NW-02 |
| Low VOC | Standard | M90LV |
| Low VOC | Weather resistance | M90-45LV |
| Low VOC | Sliding property | NW-02LV |
| Low VOC | Toughness | TF-10LV |
| Low VOC | Sub-glare, Weather resistance | LU-02LV |
| Special | High strength, fuel resistance | H140-54C |
| Special | Chlorinated water resistance | WR-01 |
| Creep resistance | CP15X | |
| Glass fiber reinforced | Glass fiber 25% reinforced | GH-25 |
| Food Contact Grade | Multi-national certification for food contact and drinking water safety Standard | M90-5 |
WAREHOUSE
Hebei Chijiang Import and Export Co., Ltd. is a professional, agile and international plastics chemical supplier, specialising in the plastics and its products industry for more than 10 years, with the most complete international supply chain of plastics raw materials. We offer high quality raw materials, the most agile information on the plastics chemical market and can match you with the most suitable raw material options. Our experience, flexibility and professionalism have LED us to a large number of customers. We have delivered a wide range of different plastic chemicals safely to more than 30 countries and have customers in all regions of the world.
Chijiang′s tenet is: To survive on quality, to be credible and to strive for excellence, and at the same time, as always, adhering to the principle of "credibility first, customer first", always put the interests of customers in the first place, and provide the best products and the best quality service for every customer with all our heart. Chijiang is committed to creating more value and benefits for global users, and to building itself into a competitive first-class enterprise through continuous improvement.
The following questions and answers can help you learn more about us:
a. What kind of company are we?
Hebei Chijiang Import and Export Co., Ltd. Is a new type of company integrating production and trade.
b. Where is the port of export?
Our main ports are Shanghai,Tianjin, and Qingdao ports
c. Whether the product is single?
In fact, for each chemical raw material, we have different grades and corresponding prices, and we have a very detailed product catalog, if you are interested in our products, we can give you a detailed introduction.
d. Why should I choose your company?
For this question, I WANT to know that what's your expectation about price, quality, the factory, and last but not least, about the sales person you are talking to. /deadly, if all things are right, or at least 80% are right,you will know which one is the right one.
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