Polyacetal resin, referred to as polyoxymethylene , thermoplastic crystalline polymer, is known as "super steel" or "sail steel", abbreviated as POM. The polymer obtained by the polymerization of formaldehyde has a low degree of polymerization and is susceptible to thermal depolymerization. In the application process, POM usually has the dual advantages of performance and cost, so that the balance of material selection is biased toward polyoxymethylene. So what kind of engineering plastics can POM replace?
1, replace the polyester
POM performs better than PBT (based on better heat resistance and resistance) in some typical applications of PBT, and its electrical performance is sufficient, at which time the cost advantage is highlighted. In premium sedan applications, the cost difference is 20%. Therefore, in the competition between PBT and reinforced polyamide, polycarbonate and polyoxymethylene in the field of automobile manufacturing, the situation of polyoxymethylene eroding its market has occurred frequently.
2, replace polycarbonate
In the automotive industry, PC has a long history of use in interior and exterior decorative parts. However, the inherent performance of POM and the possibility and cost difference caused by related new technologies have replaced a large number of PC structural solutions in the category of interior and exterior decorative parts.
3, replace the polyamide
There are many varieties of polyamides, and the application starts early, and the industrial application base is better. But in a situation where POM is slightly better in a range of properties, it does have the potential to replace nylon in many situations. The use of enhanced polyoxymethylene in place of nylon in the intake manifold was led by leading automakers such as BMW Ford, and other structural components in the engine category followed suit. It is estimated that once successful, it shows a 30% cost advantage.
4. Replacement of polyphenylene sulfide
Although PPS reflects its overall advantages with other general engineering plastics, the actual application area, the gap between the comprehensive performance and polyoxymethylene, and the specialty of polyoxymethylene itself, make POM have a good chance to enter PPS. The area of ​​application occupied.
5. Replacement of PTFE
Friction wear characteristics and fatigue and creep resistance make it possible to replace polytetrafluoroethylene in many applications.
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