nkhani

Dispersant ndi interfacial yogwira wothandizila zinthu ziwiri zosiyana za lipophilicity ndi hydrophilicity mkati mwa molekyulu.

Kubalalika kumatanthauza kusakaniza komwe kumapangidwa ndi kubalalitsidwa kwa chinthu chimodzi (kapena zinthu zingapo) kupita ku chinthu china ngati tinthu ting'onoting'ono.

Dispersants akhoza uniformly kumwazikana olimba ndi madzi particles wa inorganic ndi organic inki kuti n'zovuta kupasuka mu zakumwa, komanso kupewa sedimentation ndi condensation wa particles, kupanga amphiphilic reagents chofunika khola suspensions.Houhuan mankhwala R & D ndi kupanga zowonjezera madzi ndi mafuta opangira mafuta m'mafakitale osiyanasiyana, okhudzana surfactant magulu.

Dongosolo lobalalitsa limagawidwa kukhala: yankho, colloid ndi kuyimitsidwa (emulsion).Kuti athetse, solute ndi dispersant ndipo solvent ndi dispersant.Mwachitsanzo, mu NaCl solution, dispersant ndi NaCl, ndipo dispersant ndi madzi.Dispersant imatanthawuza zinthu zomwe zimamwazikana mu tinthu tating'onoting'ono mu dongosolo lobalalika.Chinthu china chimatchedwa dispersed substance.

Ntchito zogwiritsira ntchito mafakitale a pigment dispersant ndi awa:

1. Gwiritsani ntchito kunyowetsa dispersant kuchepetsa nthawi ndi mphamvu zofunikira kuti amalize kubalalitsidwa, kukhazikika kwa mtundu wa pigment obalalika, PP adhesion promotioner, kusintha mawonekedwe a pamwamba a pigment particles, ndi kusintha kayendedwe ka pigment particles.

2. Chepetsani kukangana kwapakati pakati pamadzi-zamadzimadzi ndi olimba-zamadzimadzi.Dispersants nawonso ndi surfactants.Dispersants ndi anionic, cationic, non-ionic, amphoteric ndi polymeric.Pakati pawo, mtundu wa anionic umagwiritsidwa ntchito kwambiri.

3. Dispersant wothandizira amene angathe kusintha dispersibility wa zinthu zolimba kapena madzi.


Nthawi yotumiza: Aug-03-2022