izindaba

Imikhiqizo yethu eyinhloko: I-Amino abicah, i-block abicane, i-hydrophilic abicone, yonke i-silicone emulser, i-carbor 6, i-carbor 6), imininingwane ye-mangen +), imininingwane engaphezulu

Abasakazi, abaziwa nangokuthi abahlabezeli be-super, banguhlobo olukhethekile lwe-surfactant ebonakaliswa yisakhiwo sabo samangqamuzana, esiqukethe amaqembu amabili aphikisana ne-solubity nasebusweni obuphikisayo. Enye yalezi yiqembu elifushane le-polar, elibizwa nge-hydrophilic group, elinesakhiwo samangqamuzana esikhona kalula ebusweni bezinto ezibonakalayo noma esibonakalayo sezigaba ezimbili, lapho benciphisa imiphumela emihle yokuvelela kanye nokunikeza imiphumela emihle yokuhlakazeka kwezinhlelo ezinhle kakhulu ezinhlelweni ezinamanzi.

Izinhlobo zabahlakazekile ezisetshenziswa ekuhlakazeni amakhekhe amakhekheyo:

1. Abahlukanisi be-inorganic, njengama-polyphosphate esters, izilindi, njll.

2. I-Organic Shican Molecule dispersants, enjenge-ALKYL POLETHERERS noma i-Anionic Surfactants yohlobo lwe-phosphate.

3. Ama-Super dispersants, anjengeSodium Polyacrylate kanye ne-Acrylic- (Methacrylic) CopolyMoners.

Abahlakazayo bendabuko babhekana nemikhawulo ethile ezinhlakeni zabo zamangqamuzana: Amaqembu a-Hydrophilic awahlanganisi ngokuqinile ezinhlakeni ezinama-particye anezinhlayiyana ezinama-portip Amaqembu we-Hydrophobic ajwayele ukuswela ubude be-carbon chain ka-carbon), okwenza kube nzima ukuhlinzeka ngezithiyo ezanele ezingezona ezinhlelweni zokuphrinta ezingekho emthethweni ukuze zikwazi ukuqina. Ukuze unqobe lemikhawulo, ikilasi elisha labahluphi be-Super Dispersants liye lavela elibonisa imiphumela eyingqayizivele yokuhlakazeka ezinhlelweni ezingalungile. Izici zabo eziphambili zifaka phakathi: Ukuma okusheshayo nokwethelwa ngokuphelele kwezinhlayiya; Okuqukethwe okuqinile okuqinile kokuqukethwe kwezinhlathihla ezintweni zokugaya, ukulondolozwa kwemishini yokucubungula kanye nokusetshenziswa kwamandla; Futhi ukuhlukana okufanayo ngokuqina okuhle, okuholela ekusebenzeni okuthuthuke kakhulu kokusetshenziswa kohlelo lokuhlakazeka.

Izinhlobo ezivamile zabahlakazekile abahle abasetshenziswa ekuhlakazeni amakhekhe amakhekheyo bangabahlakazeli be-polyelectrolyte nabasakazi abangafani nama-ionic. Izakhiwo zabo zingafaka ama-copolymers angahleliwe, ama-coff copolymers, bese uvimba ama-copolymers. Ukwakheka kwezinto ezinhle kakhulu zenziwa izingxenye ezimbili:
Amaqembu e-Anchor: Amaqembu atholakala kaningi afaka -R2N, -R3N +, -Cooh, -SOO-, -SHE42-, ama-polyamine, ama-polyols kanye nama-polyethers. Lokhu kungakha amaphuzu amaningi we-anchicoring ebusweni bezinhlayiyana ngokusebenzisa ukusebenzisana okuhlukahlukene okunamandla, okukhulayo kwamandla ama-adsorption kanye nokunciphisa inyusa.
Amaketanga angenasolwa Zingahlukaniswa ngezigaba ngokususelwa ePolarity I-medium-polarity polyester noma amaketanga e-polylacrylate; futhi amaketanga anamandla ama-polsenetes. Emizamweni yokuhlakazeka enobumba obufanayo, amaketanga axazululiwe abonisa ukuhambisana okuhle okuphakathi nendawo, ukwamukela izindlela ezandisiwe ezibanzi zokwakha isendlalelo esibanzi sokuvikela esiqinile sezinhlayiya eziqinile.

Ukukhetha ama-Super dispersants:

Ukukhethwa ngokuyinhloko kubheka izici ezimbili:

Izakhiwo ze-1.Surface zezinhlayiya ze-pigment: lokhu kufaka phakathi amapholavu angaphezulu, izici ze-acid-base, kanye namaqembu asebenzayo.

- Ngokuthola imibala eqinile enobumba obuqinile nemibala ethile ye-organic, ama-super dispersants angakha amaqembu okusebenza nge-dipole-dipole ukusebenzisana, ukubopha izibopho ze-hydrogen, noma ukubopha izibopho ze-ionic.

- Kumabala we-organic amaningi kanye nemibala ethile enobuntu obunama-polarity aphansi, ama-super dispersants anamaqembu ahlukahlukene asetshenziswayo ukuthuthukisa amandla aphelele e-adchirpl.

- Imibala ye-organic ivame ukudinga ama-super dispersants, futhi ukunakekelwa kumele kuthathwe ukuze kuqinisekiswe ukuhambisana phakathi kwe-resin kanye ne-dispersant. Abasakazi abahambisanayo abahambisanayo baphumela ekuhlanganiseni amaketanga anwetshiwe, okuholela ezingxenyeni zezincane ze-adsorption kanye nemiphumela ephansi ye-Sterient.

- Ngokuvamile, ama-super dispersants nama-Amino Anchor Amaqembu asebenza ngempumelelo kumabala we-acidic, kuyilapho labo abanamaqembu acidical basebenza kangcono kumagagasi ayisisekelo.

2 I-solvent idlala indima enkulu, ikakhulukazi okuphakathi nendawo, okuthonya ukuhamba nokungafani kwezinhlayiya ze-pigment. Ukuqinisekisa ukuthi iSuper Displayerant ihlinzeka ngokuqina okwanele kwendawo yezinhlayiya ze-pigment ezixazululweni ze-aqueve, izingxenye ezihlanganisiwe ze-chain kumele zamukele izindlela ezelulwe ngokwanele phakathi nendawo. Ngakho-ke, kubalulekile ukukhetha amaketanga we-solvent ahambisana kakhulu nesisombululo esinamanzi.

Ukukhonjwa kwabaphikisi abaphezulu:

Ama-Super Depsants akhombisa umsebenzi osakazayo ongcono. Esikhathini esifanayo sokucubungula, bangakhulisa kakhulu okuqukethwe kwe-pigment ku-slurry, ngaleyo ndlela bathuthukise ukusebenza kahle noma banganciphisa ukubonwa kwama-slurries ngokuqukethwe kwe-pigment efanayo. Le mpahla yodwa ingahlukanisa phakathi kokuhlakazeka kwesisindo samangqamuzana aphezulu kanye nokusatshiswa kwesisindo okuphansi kwamanye ama-molecular. Ukuhlolwa okunekhabhoni enzima ukusabalalisa kalula ukugqamisa lolu mehluko. Abahlabelelayo abaphansi bamangqamuzana bavame ukuzabalaza ukufezekisa okusebenzayo ekugxiliseni okuphezulu kwekhabhoni ngenxa yokumanzisa okunganele, okuholela ekuhlakazekeni okumpofu kanye nokuvezwa okuphezulu. Ngokuphambene nalokho, ama-super dispersants abhekana nalolu daba.

Ama-Super Diversants abonisa ukuqina kwesitoreji kangcono. Umbala we-pastes okhiqizwe nabahluphi abakhulu bagcina ukuqina kwesitoreji okuhle kwezikhathi ezengeziwe, kanti ama-pastes enziwe ngezindlela eziphansi ze-molecular ajwayele ukubonisa ukuqina okungatheni, ikakhulukazi ngaphansi kokuhlolwa okwenziwe ngebhayisikile, okuholela ekuhlolweni okulula noma okuhlangene.

Kusukela ama-Super dispersants ekhombisa izakhiwo ezinjenge-resin-like resin, ngezinsimbi zamamolekyuli ezifinyelela noma ukweqa lezo zama-resins enhlanganiso, lesi sici siyindlela elula yokuhlonza. Isampula yalowo ohlakazayo ingamiswa kuhhavini; Uma okusanhlamvu kwakha ifilimu ye-resin eqinile, kukhonjwa njengokuhlakazeka kwesisindo esiphakeme. Kubalulekile ukuqaphela ukuthi ama-super abahlukanisi abajwayelekile athela i-resin ye-resin ephuzi noma ephuzi ngokumiswa komile. Uma okusanhlamvu kwakha i-Transparent, Flittle Film, kungakhombisa kuphela i-resin ye-acrylic eguquliwe, okuthi, ngenkathi kukhombisa umphumela wokuhlakazeka, akunakuhlukaniswa njengokuhlakazeka kwesisindo esiphakeme.

Ukusetshenziswa kwabahluphi abaphezulu:

Ukuzuza imiphumela ephezulu yokuhlakazeka, ukusetshenziswa kwezinto ezihlekisayo kakhulu zibalulekile. In terms of the order of addition, for inorganic pigments in polar resins containing active functional groups, they can be added before or after the resin without significant impact since the resin plays a major role. Kodwa-ke, uma i-resin ingenawo ukusebenza okusebenzayo, kungakuhle ukwengeza i-pigment kuqala, kulandelwe abahlakazekile, futhi ekugcineni i-resin.

Inani le-dispersant elengeziwe lizimisele ngokuvamile ngokususelwa kwizici zezinhlamvu ze-pigment, ikakhulukazi izakhiwo zalo ezinesisekelo se-acid, indawo ethize ye-acid-base, kanye nokwakheka komhlaba. Inani elifanele livame ukusungulwa ukuze kufinyelelwe ungqimba oluminyene lwe-monolecular adederter on the picment yizinhlayiyana zezinhlayiyana. Amanani amaningi angenyukela izindleko futhi athinte ikhwalithi yomkhiqizo, ngenkathi amanani anganele kungenzeka angafinyeleli umphumela wokuhlakazeka oyifunayo. I-pigment ngayinye inenani elithile lokuhlushwa elifanele kuhlelo oluthile lokuhlakazeka, oluthonywa yindawo ekhethekile ye-pigment, ukumunca uwoyela, ukunqwabelana nobunzima, isikhathi sesihlabathi, kanye nezimpawu ze-resin yesihlabathi-milling resin; Ngakho-ke, ukusetshenziswa kufanele kulunge futhi kunqunywe ngovivinyo oluphindaphindwayo.


Isikhathi sePosi: Sep-11-2024