Izicoci zolwelo luhlobo oluqhelekileyo lwemveliso esetyenziselwa ukucoca indlu. Zisekelwe emanzini kwaye zinokususa ngokufanelekileyo ukungcola, igrisi kunye nobunye ukungcola. Ukuze kuphuculwe amava abo okusetyenziswa, bahlala befuna ukulungiswa kwi-viscosity efanelekileyo. I-viscosity ye-detergent ayifanele ibe phantsi kakhulu, ngaphandle koko iya kuhamba ngokukhawuleza, okwenza kube nzima ukulawula inani, kwaye iya kuziva "incinci" xa isetyenziswe; kodwa akufunekanga ibe phezulu kakhulu, njengoko inokuba ne-viscous kakhulu kwaye kunzima ukuyisasaza kwaye icoceke. Izityebi ke ngoko ziye zaba sesinye sezithako eziphambili kwimixube yesicoci solwelo.
1. I-sodium carboxymethyl cellulose (CMC)
I-sodium carboxymethyl cellulose sisityebi esisetyenziswa kakhulu kwizicoci. Yinto ephuma kwi-cellulose e-soluble yamanzi enokunyusa ngokufanelekileyo i-viscosity yamanzi. I-CMC inala mancedo alandelayo:
Ukunyibilika kakuhle kwamanzi: I-CMC inokunyibilika ngokukhawuleza emanzini kwaye yenze iyunifomu, isisombululo esicacileyo kwisisombululo esinamanzi.
Ithambile kwaye ayicaphukisi: I-CMC yinto ephuma ngokwemvelo yepolymer engenazo iziphumo ezinobungozi eluswini okanye kokusingqongileyo, ukuhlangabezana neemfuno zabathengi banamhlanje kukhuseleko lokusingqongileyo kunye nempilo.
Ukuhambelana okuhle: I-CMC ihambelana kakuhle nezinye izithako kwiifomyula zokucoca, ngaphandle kweengxaki ezifana ne-stratification okanye ukubola, kwaye ayiyi kuchaphazela umphumo wokuhlamba.
2. Xanthan gum
I-Xanthan gum yi-polysaccharide yendalo yendalo eveliswa yi-bacterial fermentation, esetyenziswa ngokuqhelekileyo ekutyeni, kwizinto zokuthambisa kunye ne-detergents. Ukusetyenziswa kwe-xanthan gum kwi-detergents kunezi mpawu zilandelayo:
Isiphumo esigqwesileyo sokuqina: Nokuba kwisixa esisezantsi sokongeza, i-xanthan gum inokunyusa kakhulu i-viscosity yolwelo.
Ukusebenza kwe-Anti-shear dilution: I-Xanthan gum ineempawu ezilungileyo zokucheba. Xa ushukunyiswa okanye ucinezelwe, i-viscosity ye-detergent iya kuncipha okwethutyana, ekulungele ukuhanjiswa kunye nokusetyenziswa; kodwa i-viscosity inokubuyiselwa ngokukhawuleza emva kokusetyenziswa ukunqanda ulwelo olugqithisileyo.
Ukumelana nokushisa okunamandla: I-Xanthan gum inokuhlala izinzile kumaqondo aphezulu okanye aphantsi, ayifuni ukuthotywa okanye ukunciphisa i-viscosity, kwaye i-thickener esaqhuba kakuhle phantsi kweemeko ezinzima.
3. Polyacrylate thickeners
I-Polyacrylate thickeners (efana neCarbomer) zizinto ezenziweyo zepolymer ezinamandla kakhulu zokujiya, ngakumbi zilungele ukujiya izicoci ezibonisa ukukhanya. Iimpawu zayo eziphambili ziquka:
Ukungafihli okuphezulu: I-Polyacrylate inokwenza izisombululo ezicacileyo kakhulu, iyenze ibe lolona khetho lufanelekileyo lokutyeba kwizicoci ezibonakalayo.
Ubuchule bokutyeba obusebenzayo: I-Polyacrylate inokufikelela kwiziphumo ezibalulekileyo zokujiya kwiindawo ezisezantsi kwaye inolawulo oluchanekileyo kwi-viscosity.
Ukuxhomekeka kwe-pH: Isiphumo sokuqina kwesi sityebi sinxulumene ngokusondeleyo nexabiso le-pH yesisombululo, kwaye ngokuqhelekileyo lisebenza kakuhle phantsi kweemeko ze-alkaline ezibuthathaka, ngoko ke i-pH yefomyula kufuneka ihlengahlengiswe xa isetyenziselwa ukufumana umphumo ongcono.
4. Izinto zokujiyisa ityuwa
Iityuwa (ezifana nesodium chloride, i-sodium sulfate, njl.njl.) nazo zizityebi eziqhelekileyo kwizicoci zolwelo, ngakumbi kwizicoci eziqulethe ii-surfactants. Umgaqo wayo wokusebenza kukutshintsha ilungiselelo leemolekyuli ze-surfactant ngokulungelelanisa amandla e-ionic yenkqubo, ngaloo ndlela ichaphazela i-viscosity. Izinto eziluncedo zokutyebisa ityuwa ziquka:
Ixabiso eliphantsi: Izithambiso zetyuwa zitshiphu ngexabiso eliphantsi kwaye kulula ukuzifumana, ngoko zinexabiso eliluncedo kwimveliso eninzi.
Impembelelo ye-Synergistic kunye ne-surfactants: Izithako zetyuwa zinokuphucula ngokufanelekileyo i-viscosity yenkqubo kwiifomyula ezinomxholo ophezulu we-surfactant.
Uluhlu olubanzi lwezinto ezisetyenziswayo: Le ndlela yokuqina isetyenziswa kwizicoci ezininzi zorhwebo, ngakumbi kwizicoci zemizi-mveliso.
Nangona kunjalo, ukusetyenziswa kwezitshizi zetyuwa nako kunemida ethile. Umzekelo, isixa esongezelelweyo akufuneki sibe sininzi kakhulu, kungenjalo kunokubangela ukunyibilika kwesicoci sehle okanye kube nemvula. Ukongeza, ukuchaneka kohlengahlengiso lwe-viscosity ye-tighteners yetyuwa ayilunganga njengezinye i-thickeners.
5. I-ethoxylated fatty alcohols (njenge-sodium C12-14 i-alcohol ether sulfate)
Ukongeza kumsebenzi wayo ophambili wokucoca, i-ethoxylated fatty alcohol surfactants nayo inefuthe elithile lokuqina. Ngokulungelelanisa umlinganiselo wezi zixhobo ze-surfactants, umphumo othile wokuqina unokufumaneka. Izibonelelo zayo zezi:
I-Versatility: Olu hlobo lwe-surfactant alunakudlala indima yokuqina kuphela, kodwa lukwaphucula ukucocwa kwezicoci.
Ukuhambelana kakuhle nezinye izithako: I-ethoxylated fatty alcohols iyahambelana ne-surfactants eqhelekileyo, i-flavour, i-pigments kunye nezinye izithako, kwaye ayiyi kuchaphazela ukusebenza kwemveliso yokugqibela.
Nciphisa imfuno yezinye i-thickeners: Ekubeni inemisebenzi yokucoca kunye nokuqina, ukusetyenziswa kwee-thickeners ezicocekileyo kunokuncitshiswa kwifomula, ngaloo ndlela kwandisa iindleko.
6. I-acrylate copolymers
I-acrylate copolymers yiklasi ye-synthetic polymer thickeners ehlala isetyenziswa kwi-high-end okanye i-special-function detergents. Iimpawu zabo eziphambili ziquka:
Ukulawulwa kwe-viscosity echanekileyo: Ngokulungelelanisa isakhiwo se-copolymer, i-viscosity yemveliso inokulawulwa ngokuchanekileyo ukufezekisa umphumo oyifunayo.
Uzinzo oluhle: Esi sixhobo sityebileyo sinemichiza elungileyo kunye nokuzinza komzimba kwaye sinokugcina i-viscosity elungileyo kumaqondo obushushu ahlukeneyo, amaxabiso e-pH kunye neenkqubo ze-surfactant.
Akukho lula ukucima: I-acrylate copolymer thickeners ibonisa isakhono esihle sokulwa ne-delamination kwizinto zokucoca ulwelo, ziqinisekisa ukuzinza kwemveliso kwindawo yokugcina ixesha elide.
Ukukhethwa kwe-thickener kwizicoci zolwelo kuxhomekeke kwizinto ezininzi, kubandakanywa uhlobo lwe-surfactant kwifomula, iimfuno ezicacileyo, ulawulo lweendleko kunye namava omsebenzisi. I-sodium carboxymethyl cellulose kunye ne-xanthan gum zidla ngokuba lukhetho olufanelekileyo kwizicoci eziqhelekileyo zasekhaya ngenxa yokunyibilika kwazo kakuhle kwamanzi, ubulali kunye nefuthe elityebileyo. Kwizinto zokucoca ezicacileyo, i-polyacrylate thickeners iyakhethwa. Izithambiso zetyuwa zineenzuzo zeendleko kwaye zifanelekile kwimveliso emikhulu yezokucoca kwimizi-mveliso.
Ixesha lokuposa: Oct-18-2024