Thickener nibisanzwe kandi bikoreshwa cyane mumazi yongewe kumazi.Nyuma yo kongeramo umubyimba, irashobora kongera ubwiza bwa sisitemu yo gutwikira, bityo bikarinda ibintu bisa nkaho byuzuye muri kote bituye.Ntabwo hazabaho ibintu byo kugabanuka bitewe nubwiza bwirangi ryoroshye.Hariho ubwoko bwinshi bwibicuruzwa bibyibushye, kandi ubwoko butandukanye bwibicuruzwa bifite amahame atandukanye yo kubyimba kuri sisitemu zitandukanye zo gutwikira.Hariho ubwoko bune bwibibyimbye bisanzwe: umubyimba wa polyurethane, umubyimba wa acrylic, umubyimba wa organic organique hamwe nubunini bwa selile.
1. Uburyo bwo kubyimba bwa polyurethane yibyibushye
Ibiranga imiterere ya polyurethane yibyibushye ni lipofilique, hydrophilique na lipophilique tri-block polymers, hamwe na lipophilique end end end kumpande zombi, ubusanzwe amatsinda ya hydrocarubone ya alipatique, hamwe na polyethylene glycol igice cyamazi hagati.Igihe cyose hari umubare uhagije wo kubyimba muri sisitemu, sisitemu izakora imiterere rusange y'urusobe.
Muri sisitemu yamazi, iyo ubunini bwikinini burenze ubwinshi bwa micelle yibanze, amatsinda ya nyuma ya lipophilique ahuza gukora micelles, naho umubyimba ugakora imiterere y'urusobe binyuze mumashyirahamwe ya micelles kugirango wongere ububobere bwa sisitemu.
Muri sisitemu ya latex, umubyimba ntushobora gushinga ishyirahamwe binyuze mumyanya ya lipophilique ya groupe ya micelles, ariko cyane cyane, itsinda rya lipofilique ya terefone yo kubyimba ryamamajwe hejuru yikintu cya latex.Iyo amatsinda abiri ya nyuma ya lipofilique yamamajwe ku bice bitandukanye bya latex, molekile yibyibushye ikora ibiraro hagati yuduce.
2. Uburyo bwo kubyimba aside polyacrylic aside alkali kubyimba kubyimbye
Acide polyacrylic alkali kubyimba kubyimbye ni emulioni ya cololymer ihuza, copolymer ibaho muburyo bwa acide nuduce duto cyane, isura ni amata yera, ibishishwa ni bike, kandi bifite umutekano muke mubitsina bya pH, kandi ntibishobora gukomera mu mazi.Iyo alkaline agent yongeyeho, ihinduka muburyo busobanutse kandi bwabyimbye cyane.
Ingaruka yibyibushye ya acide polyacrylic alkali kubyimba kubyimbye ikorwa muguhindura aside aside ya karubike na hydroxide;iyo hiyongereyeho agent ya alkali, itsinda rya acide carbokisike itoroha ioni ihita ihindurwamo ionisiyumu ya amonium carboxylate cyangwa ibyuma Muburyo bwumunyu, ingaruka zo kwanga electrostatike zibyara hafi ya anion centre yumunyururu wa macromolecular, kugirango umusaraba -guhuza copolymer macromolecular urunigi rwaguka kandi rurambura vuba.Nkigisubizo cyo gusenyuka kwaho no kubyimba, igice cyambere cyikubye inshuro nyinshi kandi ubwiza bwiyongera cyane.Kubera ko guhuza bidashobora gushonga, kopolymer muburyo bwumunyu irashobora gufatwa nkikwirakwizwa rya copolymer ibice byayo bikaba binini cyane.
Umubyimba wa acide polyacrylic ufite ingaruka nziza zo kubyimba, umuvuduko mwinshi, hamwe nubuzima bwiza bwibinyabuzima, ariko byumva pH, kutarwanya amazi, hamwe nuburabyo buke.
3. Uburyo bwo kubyimba bwa organic organique
Ibibyimbye bidafite ingufu zirimo cyane cyane bentonite, attapulgite, nibindi.Ariko, kubera ko bentonite ari ifu idasanzwe kandi ifata neza urumuri, irashobora kugabanya cyane ububengerane bwubuso bwa firime yipfundikizo kandi ikora nkibintu bihuza.Kubwibyo, mugihe ukoresheje bentonite mumarangi ya glxy latx, hagomba kwitonderwa kugenzura dosiye.Nanotehnologiya yamenye nanoscale yingingo zidasanzwe, kandi iha umubyimba udasanzwe hamwe nibintu bishya.
Uburyo bwo kubyibuha bwa organic organique buragoye.Mubisanzwe bizera ko kwanga hagati yimbere yimbere byongera ubwiza bwirangi.Bitewe no kuringaniza kwayo, bigira ingaruka kumurabyo no gukorera mu mucyo wa firime.Mubisanzwe bikoreshwa kuri Primer cyangwa irangi ryubaka.
4. Uburyo bwo kubyimba bwa selile
Ibibyimba bya selile bifite amateka maremare yiterambere kandi bikoreshwa cyane mubyimbye.Ukurikije imiterere ya molekile yabo, bagabanijwemo hydroxyethyl selulose, hydroxypropyl selulose, hydroxymethyl selulose, carboxymethyl selulose, nibindi, bikunze gukoreshwa hydroxyethyl selulose (HEC).
Uburyo bwo kubyimba bwa selile ya selile ni ugukoresha cyane cyane hydrophobique nyamukuru kumurongo wacyo kugirango habeho guhuza hydrogène namazi, kandi icyarimwe igahuza nandi matsinda ya polar kumiterere yayo kugirango yubake urwego rwibice bitatu kandi byongere ubwinshi bwa rheologiya. ya polymer., gabanya umwanya wubusa wa polymer, bityo wongere ubwiza bwikibiriti.Iyo imbaraga zo gukata zashyizwe mu bikorwa, imiterere y'urusobekerane rw'imiterere itatu irasenywa, imigozi ya hydrogène hagati ya molekile irashira, kandi ubukonje buragabanuka.Iyo imbaraga zo gukata zivanyweho, imigozi ya hydrogène irongera ikorwa, kandi imiterere-y-imiyoboro itatu-yongeye gushyirwaho, bityo bakemeza ko igifuniko gishobora kugira ibintu byiza.imiterere ya rheologiya.
Ibibyimba bya selile bikungahaye mumatsinda ya hydroxyl hamwe na hydrophobique ibice byimiterere yabyo.Zifite umubyimba mwinshi kandi ntabwo zumva pH.Nyamara, kubera kutarwanya amazi kwabo no kugira ingaruka kumurongo wa firime irangi, biroroshye Byatewe no kwangirika kwa mikorobe nizindi nenge, umubyimba wa selile ukoreshwa cyane cyane mubyimbye bya latx.
Muburyo bwo gutegura igifuniko, guhitamo kubyimbye bigomba gutekereza byimazeyo ibintu byinshi, nko guhuza na sisitemu, ubwiza, kubika neza, imikorere yubwubatsi, ikiguzi nibindi bintu.Ibibyimba byinshi birashobora kwongerwaho no gukoreshwa mugutanga umukino wuzuye kubyiza bya buri mubyimbye, kandi bigenzura neza ikiguzi muburyo bwo gukora neza.
Igihe cyo kohereza: Werurwe-02-2023