Pure polyurethane hmoov txheej muaj ntau yam kev siv, feem ntau suav nrog cov khoom siv sab nraum zoov xws li cov khoom siv hauv tsev, chaw ua si, chaw nres tsheb, thiab lwm yam.
Tsis tas li ntawd, polyurethane hmoov txheej kuj tsim nyog rau txheej txheej hlau nrog cov kev xav tau siab rau cov tshuaj tiv thaiv thiab roj tsis kam, xws li tsheb kauj vab, tsheb, maus taus, roj twj thiab tshuab ua liaj ua teb.
Cov yam ntxwv ua haujlwm
Polyurethane hmoov txheej muaj cov tshuaj zoo heev, cov khoom zoo nkauj zoo nkauj, qib qib, tshuaj tiv thaiv, huab cua tsis kam thiab muaj zog roj. Cov txheej txheem ntsuas kev ua tau zoo muaj xws li:
Impact resistance: 50kg.cm
Cupping xeem: 8mm
Adhesion: Qib 0
cwj mem hardness: 1H-2H
Salt spray test: >500 teev
Wet heat test: >1000 teev
Tshav kub tsis kam: 150 degree / 24 teev (dawb), zoo gloss retention, xim txawv Tsawg dua los yog sib npaug rau 0.3-0.4
Artificial accelerated aging: 60 degree × 8 teev UV + 50 degree × 4 teev condensation, voj voog 500 teev, gloss retention Ntau tshaj los yog sib npaug rau 50%, xim stability xim txawv tsawg dua los yog sib npaug rau 1.5
Cov txheej txheem tsim khoom
Kev tsim cov txheej txheem ntawm polyurethane hmoov txheej feem ntau suav nrog kev sib xyaw ua ntej ntawm cov khoom siv raw, yaj extrusion mixing, txias, granulation, crushing, tshuaj ntsuam thiab muab qhab nia, thiab ntim