I-ejenti emhlophe ye-Fluorescentubelokhu edlala indima "ye-monosodium glutamate" ekusetshenzisweni kwepulasitiki.Ukwengezwa kwezinkulungwane eziyishumi ezimbalwa kungenza kube mhlophe futhi kukhanye imikhiqizo yepulasitiki futhi kuthuthukise ukubukeka kwamapulasitiki.
Kunezindlela eziningi zokwengeza ama-ejenti amhlophe, kodwa izindlela zabo zokusebenzisa zihlukaniswe ikakhulukazi izigaba ezintathu: ukumhlophe okomile, ukumhlophe okumanzi kanye nokumhlophe kwe-masterbatch.
Ukuhlanza okomile
Ipulasitiki eyomile emhlophe iwukwengeza inani elithile le-fluorescent whitening agent powder eyomile ngokuqondile ku-substrate yepulasitiki ngaphambi kokubunjwa, hlanganisa ne-plastic substrate kuqala, bese ukhipha ingxube lapho i-extruder ifinyelela izinga lokushisa lepulasitiki elincibilikayo.Ncibilikisa isikulufu ukuze wenze i-ejenti emhlophe yepulasitiki isatshalaliswe ngokulinganayo ekuncibilikeni, futhi ekugcineni wenze imbudumbudu noma ukubumba kokucindezelwa.
I-ejenti eyomile ye-plastic whitening agent isetshenziselwa ikakhulukazi ukubumba umjovo mhlophe we-PVC eqinile, i-polyethylene, i-polypropylene, i-ABS nezinye izinsalela ze-thermoplastic.I-fluorescent whitening agents esetshenziswa kuma-ejenti okuhlanza okomile ashibhile, kodwa anobubi bokuhlakazeka kothuli olukhulu kanye nokungcoliswa kwemvelo.
Ukwenza mhlophe kwesigameko
Ukuze uthuthukise umphumela wokuhlakazeka wokuba mhlophe okumanzi, ngezinye izikhathi kuyadingeka ukwengeza inani elithile le-binder ku-ejenti emhlophe yepulasitiki, ukuze i-ejenti emhlophe yepulasitiki ikwazi ukunamathela kangcono ebusweni bezinto ezibonakalayo, ukuze kuncishiswe uthuli lwayo. ukundiza nokungcola.
I-brightener yepulasitiki ingaphinde ihlakazeke kwisisombululo esisizayo futhi yengezwe ngamaqoqo ngendlela yokusabalalisa okusizayo.Isibonelo, ingasetshenziswa ku-polyvinyl chloride ethambile (PVC), engakhiwa ibe yi-phthalic acid engu-10%.Ngemuva kwesixazululo se-dioctyl ester plasticizer, sengezwe ngamaqoqo.
Emanzini abemhlophe, ii-ejenti yokuhlanza ipulasitikiiwudaka oluhlakazeke kahle, olunobubi bokunamathela ngoba into ephilayo engaguquguquki ixutshwa kupulasitiki.I-Hony Chemical ngokuvamile incoma le ndlela yokwenza mhlophe ye-PVC ethambile.
Masterbatch whitening
Njengamanje, ukusetshenziswa kwe-"masterbatch" kumapulasitiki sekuyindlela ebalulekile yombala wepulasitiki.Uma usebenzisa i-masterbatch yombala, inqobo nje uma i-masterbatch yombala ne-resin ixubene ngokulinganayo, ingasetshenziswa ngokuqondile ekubumbeni imikhiqizo yepulasitiki.
Inani elincane lokunyakazisa lidinga ukwenziwa ngesandla kuphela.Endabeni yenani elikhulu lokucubungula, ukuze kuqinisekiswe ukuhlakazeka kwe-masterbatch, ukugqugquzela ngomshini kungasetshenziswa.Ngemuva kokuthi i-masterbatch yombala ixutshwe ngomshini nepulasitiki ye-resin, ingathunyelwa emshinini wokubumba umjovo ngedivayisi yokubunjwa kwangaphambili, futhi umbala uhlanganiswe ngaphambili ngesikhathi esifanayo.
Izinyathelo zokuphepha zokusetshenziswa
Okokuqala, inani le-fluorescent whitening kufanele ilawulwe kahle.Inani le-ejenti emhlophe elengeziwe alilihle ngangokunokwenzeka.Inani eleqile lizokwenza ipulasitiki ibe phuzi.Okwesibili, okokukhanyisa kanye nezinto ezingavuthiwe kumele zinyakaziswe ngokulinganayo.
Nazi izindlela ezimbalwa zokusebenzisa izikhanyisi zepulasitiki, kanye nalezo eziqondile okudingeka uzikhethe ngokuya ngesimo sakho.Uma unemibuzo mayelana nokusetshenziswa kweizibani zepulasitiki, sicela ukhululeke ukushiya umlayezo ebhodini lemiyalezo.
Isikhathi sokuthumela: Mar-26-2022