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Nylon wheel is an important branch product of abrasives, and it is an abrasive
product after strong cutting abrasive products such as abrasive belt wheels.
Nylon wheel products are mainly composed of nylon fiber mesh, grinding media
(ore), bonding resin and other main components, and various additives such as
heat absorption additives, fillers, and pigments may be added. The English name
of nylon is Polyamide, which is the general name for polymers containing amide
groups in the repeating units of the main chain of macromolecules. Polyamides
can be prepared by ring-opening polymerization of internal acid amines, and can
also be obtained by polycondensation of diamines and dibasic acids.
Polyurethane is made by polymerizing isocyanate (monomer) and hydroxyl
compound. Because it contains strong polar urethane groups, it is insoluble in
non-polar groups, and has good oil resistance, toughness, abrasion resistance,
aging resistance and adhesion. Different raw materials can be used to produce
materials suitable for a wide temperature range (-50~150℃), including
elastomers, thermoplastic resins and thermosetting resins. It is not resistant
to hydrolysis at high temperatures, nor is it resistant to alkaline media.
Therefore, the wheel hardness of nylon materials is generally higher and
more wear-resistant. It is better in terms of load-bearing. Polyurethane wheels
are softer, and have relatively weaker strength than nylon wheels, but the
noise reduction effect is much better and the overall ability is higher. Of
course, nylon is also soft, and polyurethane has high hardness, and sometimes
the hardness of the two can be similar. In short, it depends on the specific
situation, and choosing the most suitable is the best choice.Speaking of the difference between nylon wheels and polyurethane wheels,
we still mainly look at where and for what purpose.