Ndi zinthu ziti zomwe zimagwira bwino ntchito, nylon kapena polyurethane?

Nthawi zambiri timawona zipangizo ziwiri, nayiloni ndi polyurethane, muzinthu zosiyanasiyana, makamaka m'munda wa casters. Koma kodi pali kusiyana kotani pakati pawo, ndi iti yomwe ili ndi magwiridwe antchito abwino? Tiyeni tifufuze pamodzi.
Choyamba, tiyenera kumvetsetsa kusiyana kwakukulu pakati pa zida ziwirizi. Mwachidule, polyurethane ndi zinthu zotanuka zomwe zimakhala zofewa, choncho zimakhala ndi phokoso komanso zimakhala ndi mikangano yambiri. Izi zikutanthauza kuti zoponya za polyurethane zimagwira ntchito mopanda phokoso, koma sizingakhale zolimba ngati zoponya za nayiloni.

Ndipo nayiloni ndi chinthu cholimba, chomwe chimakhala ndi kukana kwabwino kwambiri kwa abrasion. Chifukwa chake ngati mukufuna caster yokhala ndi katundu wambiri komanso kukana kuvala, zoyika za nayiloni zitha kukhala zoyenera kwa inu!

Nanga n’chifukwa chiyani zipangizo ziwirizi ndi zosiyana kwambiri? Kwenikweni, zonse zimachokera ku kapangidwe kake ka mankhwala ndi katundu. Polyurethane amapangidwa ndi polymerizing isocyanate ndi hydroxyl mankhwala, ndipo ali wabwino kukana mafuta, kulimba, kukana abrasion, kukana kukalamba ndi adhesion. Nayiloni, kumbali ina, imakhala ndi kutentha kwakukulu, kukana kutopa ndi kukana abrasion, komanso mphamvu yabwino yamakina ndi kukhazikika kwa mawonekedwe.