1. POM is milky white opaque crystalline linear thermoplastic resin, with good comprehensive performance and coloring, with high elastic modulus, high rigidity and hardness, specific strength and specific rigidity close to metal;
2. Excellent tensile strength, bending strength, creep resistance and fatigue resistance, repeated impact resistance, excellent load-recovery recovery;
3. Small friction coefficient, wear resistance, good dimensional stability, good surface gloss, high viscoelasticity, excellent electrical insulation, and not affected by temperature; good insulation resistance and not affected by humidity;
4. Excellent chemical resistance: In addition to strong acids, phenols and organic halides, it is stable to other chemicals and resistant to oil; its mechanical properties are less affected by temperature and has a higher heat distortion temperature.
5. The disadvantage is that the flame retardancy is poor, it burns slowly in fire, and the oxygen index is small. Even if the flame retardant is added, the satisfactory requirements cannot be obtained. In addition, the weather resistance is not ideal. Stabilizers are added for outdoor applications.
6. Homo-formaldehyde has high crystallinity, better mechanical strength, rigidity, heat distortion temperature, etc. than co-formaldehyde. Co-formaldehyde has a lower melting point, thermal stability, chemical resistance, flow characteristics, and processability are better than homo-formaldehyde, new The products developed are ultra-high flow (fast
Molding), impact resistance and reduce mold deposit grades, there are also inorganic filling to enhance grades.
Widely used in manufacturing various sliding and rotating mechanical parts, making all kinds of gears, levers, pulleys, sprockets, especially suitable for bearings, hot water valves, precision metering valves, conveyor chains and rollers, flow meters, in automobiles Exterior handles, cranks and other windows
Rotating machinery, oil pump bearing seats and impeller gas switch valves, electronic switch parts, fastening bodies, terminal mirrors, electric fan parts, heating plates, instrument buttons; bearings for audio and video tapes; various pipes and agricultural sprinkler irrigation systems, valves, sprinklers Water dragon
Parts of the head and bathtub; switch keyboards, buttons, audio and video tape reels; temperature control timer; power tools, garden finishing tool parts; in addition, it can be used as surfboards, sailboats and various sled parts, watch micro gears, sports equipment Frame accessories and backpacks
Various buckles, fasteners, lighters, zippers, buckles; heart pacemakers in medical devices; artificial heart valves, vertebrae, prostheses, etc.