Chifukwa chiyani?Disperant NNOntchito?
Disperant NNOmamolekyu ali ndi magulu okhazikika ndi magawo okhazikika. Ntchito ya gulu loyikirapo ndikupereka mphamvu zokwanira zomangira ma pigment filler particles. Ma molekyulu a dispersant samagwa pamwamba pa tinthu tating'onoting'ono, zomwe ndizofunikira kuti dispersant agwire ntchito. Ntchito ya okhazikika mbali ndi kukhazikika pigment akaphatikiza particles omwazika ndi makina mphamvu kudzera electrostatic repulsion ndi malo kukana mu madzi gawo kuteteza particles ku aggregating.
Mu organic solvents, pamene khola gawo laDisperant NNOkukhazikika kwa omwazika pigment particles ndi kukana malo, pamene katayanitsidwe wa dispersant particles ndi ang'onoang'ono kuposa kukula kwa unyolo zosungunulira, ndi zosungunulira unyolo kufinya wina ndi mzake ndi entropy amachepetsa. M'madzi, ionization imapezeka mozungulira magulu a ionic kupanga wosanjikiza wapawiri, ndipo electrostatic repulsion imalepheretsa tinthu tating'onoting'ono. Ngati polyether yopanda ionized ndi yokhazikika, polyether imakhazikika mabala a pigment omwazika ndi kukana kwamalo.
Popanga zamkati ndi kupanga mapepala, mapepala ambiri otulutsa mankhwala amafunikira kuti athetse mavuto a kubalalitsidwa, kusunga, kusefera ndi zina zotero. Kuonjezera zothira mankhwala ku zamkati kumatha kuchepetsa kupindika kwa ulusi ndikupangitsa pepala kukhala losalala komanso kuchita bwino. Kawirikawiri, zowonjezera mankhwala ntchito zamkati kusefera, monga kutuluka AIDS, zosefera, dispersants, kulimbikitsa wothandizira, thovu wothandizila thovu, zoteteza, tizilombo michere, etc. Mu mndandanda wa kukonzekera, ena ndi payekha, ena osakaniza, kugwirizana wina ndi mzake. kupititsa patsogolo tsamba, kukonza bwino kupanga, kuchepetsa mtengo wopanga.
Fiber ndiye chinthu chofunikira kwambiri chomwe chimakhudza mtundu wa pepala pakupanga mapepala. Monga ulusi wina wautali ndi wosagwirizana bwino, kupanga zowonjezera, zodzaza ndi zina zotalikirana, ndiyeno zimakhala zovuta kupeza magwiridwe antchito, mphamvu yoyenera ya pepala. Komabe, ndi kuwonjezera kwa dispersant yoyenera, pamwamba pa tinthu tating'onoting'ono tating'onoting'ono titha kupanga mawonekedwe a bimolecular, ndipo kuchuluka kwa chinyezi cha tinthu tating'onoting'ono kumatha kusintha. Zina zabwino zotulutsa ulusi zimafunikira zinthu zina za pyrolytic, zomwe zimatha kupititsa patsogolo kubalalitsidwa ndi kuchuluka kwa kutentha. Ndiye kuchepetsa mamasukidwe akayendedwe a zamkati, kusintha pepala pamwamba kusalala ndi softness.
Nthawi yotumiza: May-26-2022