Polyurethane wheels have an operating temperature, so when we use them, its performance is very good. Some people may compare it with your director Long. In fact, it is resistant to high temperatures. Features, the above authoritarian is indeed not as good as this nylon material, but in terms of silence, it is actually better than you, because it is used for floors like this, the most important thing is that it has some waterproof properties . These polyurethane materials have some outstanding advantages and are irreplaceable.
In fact, it is mainly because the molecular structure of polyurethane is different from others. Polyurethane is an elastomer between plastic and rubber, and its excellent comprehensive properties are not available in ordinary plastics and rubbers. It has good properties such as oil resistance, abrasion resistance, radiation resistance, high load-bearing capacity and shock absorption.
Nylon is a plastic made of polyamide resin. It has high mechanical strength, good toughness, and high tensile and compressive strength. The ability to absorb shock, stress and vibration is strong, and the impact strength is much higher than that of general plastics. Corrosion resistant, very resistant to alkalis and most salt solutions, also resistant to weak acids, engine oils, gasoline, aromatic compounds and general solvents, inert to aromatic compounds, but not resistant to strong acids and oxidants. It is self-extinguishing, non-toxic, odorless, good weather resistance, inert to biological erosion, and has good antibacterial and mildew resistance.
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