What is acetal plastic used for?
Acetal plastic, also called polyacetal and polyoxymethylene (POM), is a general purpose, semi-crystalline, engineered thermoplastic. Acetal is commonly used for parts that need to be very stiff, have low surface friction and good dimensional stability.
How strong is acetal copolymer?
Acetal Properties and Material Options
| UNITS | COPOLYMER ACETAL | |
|---|---|---|
| Tensile strength | psi | 9,800 |
| Flexural modulus | psi | 370,000 |
| Izod impact (notched) | ft-lbs/in of notch | 1.0 |
| Heat deflection temperature @ 264 psi | °F | 230 |
Is acetal copolymer the same as Delrin?
Delrin® is an acetal homopolymer and has a uniform backbone with a larger crystalline block structure than acetal copolymers providing better chemical bonding. As a result, Delrin® is the stiffest and strongest unreinforced technical engineering polymer available.
What are the properties of acetal?
Acetal Characteristics
- Strong, rigid and tough.
- Excellent mechanical stability.
- Excellent creep, moisture and fatigue resistance.
- Low coefficient of friction.
- Easily machined and fabricated.
- Low water absorption.
- FDA approved.
- Good electrical properties.
What is the difference between acetal homopolymer and copolymer?
Well, as mentioned previously, Acetal C is a copolymer whilst Acetal H is a homopolymer. The main difference between copolymers and homopolymers is that homopolymers are created by using one monomer whilst copolymers are produced by using two types of monomer.
What is acetal copolymer used for?
Acetal Copolymer resin is used in applications requiring a combination of strength, low moisture absorption, chemical resistance and dimensional stability. It’s also used for high-performance engineering components. Acetal Copolymer is widely used in the consumer electronics industry and the automotive industry.
Does acetal absorb water?
Because it absorbs little moisture, Acetal demonstrates excellent stability for close-tolerance machined parts. In high-moisture or submerged applications, Acetal bearings can outperform nylon 4 to 1. This material is resistant to a wide range of chemicals, including many solvents.
Is Delrin and POM same?
Acetal is the common name for a family of thermoplastics with the chemical name “PolyOxyMethylene”, or POM. Acetal is available in two general types of resins: Copolymer acetal (POM-C), and homopolymer acetal (POM-H); commonly called Delrin®.
Is acetyl and acetal the same?
As nouns the difference between acetal and acetyl is that acetal is (organic chemistry) any diether of a geminal diol, r2c(or’)2 (where r’ does not = h) while acetyl is (organic chemistry) the univalent radical ch3co- derived from acetic acid.
What is the difference between copolymer and homopolymer?
The main difference between homopolymer and copolymer is that homopolymers are produced by using a single type of monomer, whereas copolymers are formed by using two different types of monomers.