Is acetal a homopolymer?
Acetal homopolymer is an engineering thermoplastic polymer that provides good strength and stiffness. DuPont Delrin® is a popular acetal homopolymer brand name and the most commonly used acetal homopolymer.
What is acetal homopolymer resin?
Acetal Homopolymer is used in high load mechanical applications. This Acetal resin is also used in plumbing and irrigation applications due to its excellent thread strength & ability to resist scale build-up. Because of its machinability, the Acetal Homopolymer resin is used in prototyping of in vivo medical devices.
What Delrin white?
Delrin (150 NC010) White It is a crystalline plastic which uses a breakthrough in stabilization technology by offering an excellent balance of desirable properties that bridge the gap between metals and plastics. In many important mechanical and structural applications, Delrin will replace metals.
Is Delrin a copolymer?
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.
Is POM and Delrin the same?
Acetal or polyoxymethylene (POM) is a semi-crystalline, non-amorphous type of thermoplastic. Delrin®, which is the DuPont brand name for Acetal, is a homopolymer. It comes in both black and white. One important difference between Acetal and the homopolymer Delrin resin is that Acetal tends to have centerline porosity.
What is centerline porosity?
Centerline porosity occurs when acetal cools during its manufacturing. The outer portions solidify first and as the material cools there is a corresponding loss of volume in the center. Problem is the inflexible extruded “shell” restricts the volume change, causing pockets or voids to form.
What is the difference between acetal homopolymer and copolymer?
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. This means that Acetal C and Acetal H have slightly different properties.