Ukucoca kwimizi-mvelisoEnyanisweni, imbali yayo ineminyaka embalwa kuphela, kodwa ukuvela kwayo kuzise iingenelo ezinkulu kwezoqoqosho nakwezentlalo kwimveliso yemizi-mveliso. Ngokuphucuka ngokukhawuleza kwezobuchwepheshe bokucoca, ukucoca kwimizi-mveliso kuye kwasetyenziswa phantse kuzo zonke iindawo zoshishino, kubandakanya ukuprinta nokudaya amalaphu, iikhemikhali zepetrochemicals, oomatshini, ukumbiwa kwemigodi nokunyibilikisa, unyango lomphezulu, ubunjineli beekhemikhali, izixhobo kunye neemitha, izixhobo ze-elektroniki, ii-semiconductors, iiwotshi kunye nobucwebe, i-biology, kunye ne-optics. Oku kubonisa ngokupheleleyo amandla amakhulu emarike kunye nophuhliso oluqinileyo lokucoca kwimizi-mveliso.
Ngokubanzi, iiarhente zokucoca kwimizi-mveliso zahlulwe zibe ziiarhente zokucoca ngamakhemikhali, ukucoca ngokwasemzimbeni kunye nokucoca iintsholongwane ngokwemigaqo yazo yokusebenza. Ukucoca ngamakhemikhali kunembali ende yophuhliso, uluhlu olubanzi lwezicelo kunye neentlobo ezahlukeneyo zeemveliso. Okwangoku, iiarhente zokucoca ngamakhemikhali zahlulwe zibe ziindidi ezintathu ngokomxholo wazo wamanzi: iiarhente zokucoca i-organic solvent, iiarhente zokucoca ezisekelwe emanzini kunye neearhente zokucoca ezisekelwe emanzini aphantsi.
Eli nqaku lichaza kabanzi ngokwakhiwa kwefomyula, ukusebenza kokucoca kunye neendlela zophuhliso lwexesha elizayo zezi ntlobo zintathu zeekhemikhali zokucoca ngokwahlukeneyo.
1. Izicoci ze-Organic Solvent
Izicoci ze-organic solvent ikakhulu zibhekisa kwizinyibilikisi ze-organic ezingenamanzi kwiifomyula zazo. Uninzi lwazo luthatha ii-hydrocarbons (ii-alkanes, ii-aromatic hydrocarbons), ii-chlorine hydrocarbons, ii-fluorinated hydrocarbons, ii-alcohols, ii-alcohol ethers kunye nezinye izinto njengezinto eziphambili. Indlela yokusebenza yokucoca i-organic solvent kukunyibilikisa ngokuthe ngqo izinto ezinganyibilikiyo emanzini kodwa ezinyibilikayo kwi-organic solvents, ezifana ne-grease, wax, resin, irabha, iidayi, ezinye izincamathelisi kunye nezinye izinto ezingcolileyo ze-organic.
Izicoci ze-organic solvent zinesimo solwelo kubushushu obuqhelekileyo kunye noxinzelelo lomoya, ukunyibilika okuhle kunye nokuxinana okuphantsi. Ziyaguquguquka kakhulu, zishiya intsalela encinci okanye zingabikho kumphezulu wezinto emva kokucoca, kwaye aziyi konakalisa okanye zonakalise izixhobo ezisisiseko ngexesha lenkqubo yokucoca.
Nangona kunjalo, ukuguquguquka okuphezulu kwezinyibilikisi ze-organic, ezihamba namanqaku aphantsi okubila, kuzenza zikwazi ukuphuma ziye kwindalo esingqongileyo. Phakathi kwezi zinto, ii-hydrocarbons ezine-chlorine, ii-hydrocarbons ezine-fluorinated kunye nezinye ii-hydrocarbons ezine-halogenated ziyingozi emzimbeni womntu. Ii-alcohols kunye nee-alcohol ethers zi-lipophilic, nto leyo enokubangela ingozi enkulu ebantwini, kwizilwanyana nakwindalo esingqongileyo.
Umzekelo, ezinye izicoci ze-organic solvent eziye zavalwa, ezifana ne-trichlorotrifluoroethane, i-carbon tetrachloride, i-trichloroethane kunye ne-perbromoalkanes, zibonelela ngokusebenza kakuhle kokucoca kwaye zizisa iingenelo zoqoqosho. Nangona kunjalo, ezi zinto ziyawucima umaleko we-ozone kwaye zibe yingozi kuMhlaba. Ukongeza, kunzima kakhulu ukuphinda usebenzise kwaye uqokelele izinto ezisele, ngoko ke ukusetyenziswa kwazo kuye kwavalwa ngokusemthethweni.
2.Iarhente yokucoca esekwe emanzini
Iiarhente zokucoca ezisekelwe emanzini zakuqala zazisebenzisa kakhulu ii-alkaline inorganic okanye iityuwa ezingezona zendalo. Iifomyula zazo ezilula kunye ne-alkaline enamandla zizise iingxaki ezininzi ngexesha lokucoca kwaye zaphazamisa kakhulu ukusebenza kokucoca. Iiarhente zokucoca ezisekelwe emanzini zanamhlanje ziye zoyisa ezi ntsilelo. Ziquka ii-surfactants, ii-complexing agents, ii-corrosion inhibitors, iziqinisi, izinyibilikisi kunye nezinye izithako ezisebenzayo, kunye neefomyula ezenziwe ngokwezifiso ngokweenjongo ezahlukeneyo zokucoca kunye nezixhobo ezisisiseko.
Umzekelo, ukususa amafutha ngaphambi kokusebenzisa i-electroplating kusebenzisa izithako ezidityanisiweyo ezifana ne-polyether, i-triethanolamine oleate kunye ne-sodium fatty alcohol polyoxyethylene ether sulfate. Le fomula edityanisiweyo ayibolisi kwizixhobo ezisisiseko. Ayifuni kufudunyezwa ngexesha lokusetyenziswa, ivelisa i-foam ephantsi, inika iziphumo ezilungileyo zokucoca, inedosi ephantsi kunye nexabiso eliphantsi, kwaye kulula ukuyisebenzisa. Ayinatyhefu kwaye inobuhlobo nokusingqongileyo, ifanelekile ekucoceni ngesandla nangokwemishini ngonyango olulula emva kokucoca.
Ukulungiswa kwefomula yeearhente zokucoca ezisekelwe emanzini kukwavumela ukuba imisebenzi emininzi yenziwe ngaxeshanye. Xa ucoca iindawo zobhedu, izithako zokupolisha zingongezwa kwifomula yokucoca ukuze kugqitywe ukucoca nokupolisha kwinkqubo enye. Ifomula eqhelekileyo iqulathe i-coconut oil fatty acid diethanolamide, i-glycerin kunye ne-dodecylbenzenesulfonic acid, kunye nezithinteli zokubola kunye nezikhanyisi. Igcina amandla okususa amafutha kwaye ilawula ngokufanelekileyo ixabiso le-pH ukuthintela iindawo zobhedu ekuboleni okubangelwa yi-pH ephantsi kakhulu. Izithinteli zokubola kunye nezikhanyisi ezongeziweyo zinika iindawo zobhedu ezicociweyo ukukhanya okuhle. Ukuba izithinteli zokwenza ifilimu zihlanganiswe kwifomyula, ifilimu ekhuselayo iya kwakheka phezu kweendawo zobhedu, izigcine zikhanya ixesha elide emva kokucoca.
Ukuze kuqhutywe ukucoca okunobuhlobo nokusingqongileyo, kuye kwaphuhliswa iiarhente zokucoca ezisekelwe emanzini ezinezixhobo zokucoca eziphilayo ezinokubola nezingenabungozi ezifana ne-alkyl glycosides kunye ne-sophorolipids. Ifomyula eqhelekileyo ithatha ii-alkyl glycosides kunye ne-sophorolipids njenge-surfactants, i-nitrilotriacetic acid njenge-complexing agent, i-sodium alginate njenge-thickener, kunye ne-sodium gluconate njengesithako esincedisayo. Zonke ezi zixhobo zibonisa ukuhambelana okuhle kwezinto eziphilayo, izinga eliphezulu lokubola kweentsholongwane kunye nokukrala okuncinci kolusu. Ngaphandle koko, izixhobo ezincedisayo azina-phosphorus, nto leyo eyenza iimveliso zibe nobuhlobo nokusingqongileyo kakhulu. Ezi arhente zokucoca zisetyenziswa kakhulu njengezicoci eziluhlaza kwiikhitshi, kwigumbi lokuhlambela nakwezinye iindawo zokuhlala, zibonelela ngamathuba amaninzi okusetyenziswa.
Iiarhente zokucoca ezisekelwe emanzini zilungisa iintsilelo zee-organic solvent cleaners. Zixabiso eliphantsi, zikhuselekile kwaye zinobuhlobo nokusingqongileyo, zinezixhobo eziluhlaza ezifikelelekayo nezihlaziyekayo. Ke ngoko, iiarhente zokucoca ezisekelwe emanzini zinokusebenza njengendawo efanelekileyo yokutshintsha ii-organic solvent cleaners ngelixa zifezekisa iziphumo ezifanayo zokucoca.
3.Iarhente yokucoca esekwe emanzini amancinci
Iiarhente zokucoca ezingamanzi zahlukile kwiiarhente zokucoca ezisekelwe kwi-organic solvent kuba amanzi kunye nee-surfactants zongezwa kwi-organic solvents. Ngenxa yesi sizathu, zikwabizwa ngokuba ziiarhente zokucoca i-emulsion okanye iiarhente zokucoca i-microemulsion kwezinye iincwadi.
Indlela yabo yokucoca idibanisa iindlela zokucoca ezisekelwe emanzini eziqulethe ii-surfactants kunye nee-arhente zokucoca ezisekelwe kwi-solvent. Ii-arhente zokucoca ezinamanzi angaphantsi kwamanzi zigcina iingenelo zee-arhente zokucoca ezisekelwe kwi-solvent zemveli, oko kukuthi, ukucoca okunamandla ngokuchasene namabala eoyile kunye nokusebenza kakuhle kokumanzisa nokungena kwiindawo ezingaphantsi komhlaba. Okwangoku, zibonelela ngomthamo ophuculweyo wokususa izinto ezingcolisayo ezisekelwe emanzini. Xa kuthelekiswa nee-arhente zokucoca ezisekelwe kwi-solvent zendalo, zikwabonisa ukusebenza okuphuculweyo kokucoca kwizinto ezingcolisayo ezingaphiliyo. Ukongezwa kwamanzi kuphakamisa i-flash point kwaye kunciphisa ukuguquguquka kwee-arhente zokucoca, nto leyo ephucula ukhuseleko lwezinyibilikisi zokuqala kwaye yandisa ububanzi bazo bokusetyenziswa.
Ngokusekelwe ekunyibilikeni kwezinto eziphilayo emanzini, izinto zokucoca ezingamanzi aphantsi kwamanzi zihlala zahlulwe zibe ziintlobo zezithambisi ezinyibilikayo emanzini kunye nezo zinganyibilikiyo emanzini. Izinto ezinyibilikayo emanzini ikakhulu ziialcohols, ethers kunye neeketones. Zisebenza ngokufanelekileyo kwizinto ezingcolisayo ezinamafutha nezisekelwe emanzini, kodwa ziyatsha. Ukuzibumba zibe ziiarhente zokucoca ezingamanzi aphantsi ngamanzi amaninzi kunokunciphisa ukutsha ukuze kusetyenziswe ngokukhuselekileyo. Izinto ezinyibilikayo emanzini ziquka ikakhulu izinto ezinyibilikayo ezisekelwe kwi-petroleum, izinto ezinyibilikayo ze-terpene hydrocarbon kunye nee-halogenated hydrocarbons. Zikwanazo neendawo ezikhanyayo kwaye ziyatsha kakhulu kwaye ziyaqhuma. Xa ezo zinto ezinyibilikayo zenziwe izinto zokucoca ezingamanzi aphantsi, umahluko omkhulu kuxinzelelo lomphezulu phakathi kwezinto ezinyibilikayo ezingamanzi kunye namanzi uya kukhokelela ekungahambelani nasekuhlulweni ukuba kongezwa amanzi kuphela. Ke ngoko, izinto ezinyibilikayo kufuneka zifakwe ukunciphisa uxinzelelo phakathi kwala manqanaba mabini, ukuphucula ukuhambelana kunye nokufezekisa ukuxubana okufanayo.
Ixesha leposi: Meyi-28-2026