Ukusebenza kunye nokusetyenziswa kwe-hydroxyethyl cellulose

Iipropati zeHydroxyethyl Cellulose

Iimpawu eziphambili ze-hydroxyethyl cellulose kukuba i-soluble emanzini abandayo kunye namanzi ashushu, kwaye ayinayo i-gel properties. Inoluhlu olubanzi lwe-substitution degree, i-solubility kunye ne-viscosity, ukuzinza okuhle kwe-thermal (ngaphantsi kwe-140 ° C), kwaye ayivelisi i-gelatin phantsi kweemeko ze-acidic. imvula. Isisombululo se-cellulose se-Hydroxyethyl sinokwenza ifilimu ecacileyo, kwaye ineempawu zohlobo olungenayo i-ionic olungahambelani ne-ion kwaye luhambelana kakuhle.

① Ubushushu obuphezulu kunye nokunyibilika kwamanzi: Xa kuthelekiswa ne-methyl cellulose (MC) enyibilika kuphela kumanzi abandayo, i-hydroxyethyl cellulose inokunyibilika emanzini ashushu okanye amanzi abandayo, kwaye ayigqithisi kwiqondo lobushushu eliphezulu okanye ukubilisa, iyenze ibenoluhlu olubanzi lweemveliso. iimpawu ze-solubility kunye ne-viscosity, kunye neempawu ezingezizo ze-thermogelling.

②Ukunyamezela ityuwa: Ekubeni i-non-ionic, inokuhlalisana kunye noluhlu olubanzi lwezinye iipolymers ezinyibilikayo zamanzi, i-surfactants, kunye neetyuwa. Ke ngoko, xa kuthelekiswa ne-ionic carboxymethyl cellulose (CMC), i-hydroxyethyl cellulose inokumelana ngcono netyuwa.

③Ukugcinwa kwamanzi, ukulinganisa, kunye neempawu zokwenza ifilimu: amandla ayo okugcina amanzi aphindwe kabini kune-methyl cellulose, kwaye inolawulo oluhle kakhulu lokuhamba, iipropati ezibalaseleyo zokwenza ifilimu, ukulawulwa kokulahlekelwa kwamanzi, ukungahambi kakuhle, kunye nesondo esikhuselayo se-colloid.

Ukusetyenziswa kwe-hydroxyethyl cellulose

I-cellulose ye-Hydroxyethyl yimveliso ye-cellulose e-ether engekho i-ionic yamanzi, esetyenziswa ngokubanzi kwi-architectural coatings, i-petroleum, i-polymerization, iyeza, ukusetyenziswa kwansuku zonke, iphepha kunye ne-inki, ilaphu, i-ceramics, ukwakhiwa, ezolimo kunye namanye amashishini. Inemisebenzi yokuqina, ukudibanisa, i-emulsifying, ukusabalalisa kunye nokuzinzisa, kwaye inokugcina amanzi, ukwenza ifilimu kunye nokubonelela ngempembelelo yokukhusela i-colloid. I-soluble ngokulula emanzini abandayo kunye namanzi ashushu, kwaye inokubonelela ngesisombululo esinoluhlu olubanzi lwe-viscosity. Luphuhliso kwiminyaka yakutshanje. Enye yee-ether ze-cellulose ezikhawulezayo.

1. Ipeyinti yeLatex

I-Hydroxyethyl cellulose sesona sityebi sisetyenziswa kakhulu kwiipeyinti zelatex. Ukongeza kwipeyinti yelatex etyebileyo, inokuphinda imise, isasaze, izinze kwaye igcine amanzi. Ibonakaliswa yimpembelelo ephawulekayo yokuqina, ukuphuhliswa kakuhle kombala, ukwenza ifilimu kunye nokuzinza kokugcinwa. I-Hydroxyethyl cellulose yi-non-ionic cellulose derivative enokusetyenziswa kuluhlu olubanzi lwe-pH. Inokuhambelana kakuhle kunye nezinye izinto ezikwicandelo (ezifana nee-pigments, izongezo, iifayili kunye neetyuwa). Iingubo ezijiyile nge-hydroxyethyl cellulose zinerheology elungileyo kumazinga ahlukeneyo okucheba kwaye ziyi-pseudoplastic. Iindlela zokwakha ezifana nokugquma ibrashi, i-roller coating kunye ne-spray coating zingamkelwa. Ulwakhiwo oluhle, akukho lula ukuthontsiza, ukunyibilika kunye nokuchaphaza, kunye nepropathi elungileyo yomgangatho.

2. Ukwenziwa kwePolymerization

I-Hydroxyethyl cellulose inemisebenzi yokusabalalisa, i-emulsifying, ukumisa kunye nokuzinzisa kwi-polymerization okanye i-copolymerization components of synthetic resins, kwaye ingasetyenziselwa njenge-colloid ekhuselayo. Ibonakala ngobuchule obunamandla bokusasaza, iqhekeza elincinci "ifilimu", ubungakanani besuntswana elilungileyo, imilo yamasuntswana afanayo, uhlobo oluxekethileyo, ulwelo oluhle, ukucaca okuphezulu kwemveliso kunye nokusebenza ngokulula. Ngenxa yokuba i-cellulose ye-hydroxyethyl inokunyibilika emanzini abandayo kunye namanzi ashushu, kwaye ayinayo indawo yokushisa ye-gelation, ifanelekile kwiimpendulo ezahlukeneyo ze-polymerization.

Iimpawu zomzimba ezibalulekileyo zokuphanda umgangatho we-dispersant yi-tension (okanye i-interfacial) yoxinzelelo, amandla okudibanisa ubuso kunye nobushushu be-gelation yesisombululo sayo samanzi. Ezi mpawu ze-hydroxyethyl cellulose zifanelekile kwi-polymerization okanye i-copolymerization ye-synthetic resins. Iselulosi ye-Hydroxyethyl inokuhambelana kakuhle nezinye ii-ether ze-cellulose ezinyibilikayo emanzini kunye ne-PVA. Inkqubo edibeneyo eyenziweyo inokufumana isiphumo esibanzi sokufunda omnye komnye. Iimveliso ze-resin ezenziwe emva kokudibanisa azigcini nje ngokuba nomgangatho omhle, kodwa zinciphisa ukulahlekelwa kwezinto.

3. Ukwemba ioli

Kwi-oyile yokugaya kunye nemveliso, i-high-viscosity hydroxyethyl cellulose isetyenziswa kakhulu njenge-thickener yokugqibezela ulwelo kunye nokugqiba ulwelo. I-viscosity ephantsi ye-hydroxyethyl cellulose isetyenziswa njengokunciphisa ukulahleka kolwelo. Kwiidaka ezahlukeneyo ezifunekayo ukugaya, ukugqitywa kakuhle, ukusebenza kakuhle kwe-cementing kunye ne-fracturing, i-cellulose ye-hydroxyethyl isetyenziswa njenge-thickener yokufumana umbane olungileyo kunye nokuzinza kodaka. Ngexesha lokugaya, kunokuphucula amandla okuthwala isanti kunye nokwandisa ubomi benkonzo ye-drill bit. Kwinqanaba elisezantsi lokugqibezela ulwelo kunye ne-cementing fluid, ilahleko ebalaseleyo yamanzi ekunciphiseni ukusebenza kwe-hydroxyethyl cellulose inokuthintela umthamo omkhulu wamanzi ukuba ungangeni kumaleko we-oyile ukusuka eludakeni, kwaye unokuphucula amandla okuvelisa umaleko we-oyile.

4. Iikhemikhali zemihla ngemihla

I-Hydroxyethyl cellulose yi-ejenti esebenzayo yokwenza ifilimu, i-binder, i-thickener, i-stabilizer kunye ne-dispersant kwii-shampoos, izitshizi zeenwele, i-neutralizers, i-conditioner yeenwele kunye nezithambiso; kwi-powder yokuhlamba Yi-arhente yokubuyisela umhlaba. I-Hydroxyethyl cellulose ichitheka ngokukhawuleza kwiqondo lokushisa eliphezulu, elinokukhawuleza inkqubo yokuvelisa kunye nokuphucula ukusebenza kakuhle kwemveliso. Isici esicacileyo se-detergent equkethe i-hydroxyethyl cellulose kukuba inokuphucula ukuguda kunye ne-silika yelaphu.

5. Ukwakha

Iselulosi yeHydroxyethyl ingasetyenziswa kwiimveliso zokwakha ezifana nemixube yekhonkrithi, udaka olutsha, udaka lwegypsum okanye ezinye iisamente, njl. njl., ukugcina amanzi ngexesha lokwakha phambi kokuba zisete kwaye ziqine. Ukongeza ekuphuculeni ukugcinwa kwamanzi kwimveliso yokwakha, i-hydroxyethyl cellulose iphinda ikhulise ukulungiswa kunye nexesha elivulekileyo le-plaster okanye i-mastic. Inokunciphisa ulusu, ukutyibilika kunye nokuhexa. Ngaloo ndlela, ukusebenza kolwakhiwo kunokuphuculwa, ukusebenza kakuhle kunokunyuswa, kwaye ixesha linokugcinwa. Kwangaxeshanye, izinga lokwandiswa komthamo we-stucco linokuphuculwa, ngaloo ndlela kugcinwe imathiriyeli ekrwada.

6. Ezolimo

I-Hydroxyethyl cellulose isetyenziselwa ukuqulunqwa kwe-emulsions ye-pesticide kunye nokumiswa, njenge-thickener ye-emulsions yokutshiza okanye ukumiswa. Inokunciphisa ukukhukuliseka kweekhemikhali kwaye iyenze incamathele ngokuqinileyo emagqabini ezityalo, ngaloo ndlela inyusa isiphumo sokutshiza ngamahlamvu. Iselulosi yeHydroxyethyl ingasetyenziswa njenge arhente yokwenza ifilim kwiiarhente zokugquma imbewu; njenge-binder kunye ne-ejenti yokwenza ifilimu ekuhlaziyweni kwamagqabi ecuba.

7. Ukwenza iphepha kunye ne-inki yokuprinta

Iselulosi yeHydroxyethyl ingasetyenziswa njengesixhobo sokulinganisa iphepha kunye nebhodi kwaye njengesixhobo sokujiya kunye nokuxhoma kwii-inki ezisekelwe emanzini. Kwinkqubo yokwenza iphepha, iipropati eziphezulu ze-hydroxyethyl cellulose ziquka ukuhambelana neentsini ezininzi, i-resin kunye ne-salts ye-inorganic, i-foam ephantsi, ukusetyenziswa kwe-oksijeni ephantsi kunye nokukwazi ukwenza ifilimu epholileyo. Ifilimu ine-permeability ephantsi kunye ne-gloss ephezulu, enokunciphisa iindleko. Iphepha elilingana ne-hydroxyethyl cellulose, elinokusetyenziswa ukuprinta imifanekiso ekumgangatho ophezulu. Ekwenziweni kwe-inki esekwe emanzini, i-inki esekwe emanzini ejiyelwe nge-hydroxyethyl cellulose yoma ngokukhawuleza, inombala olungileyo, kwaye ayibangeli ukuncamathela.

8. Ilaphu

Ingasetyenziswa njenge-binder kunye ne-agent yokulinganisa kwi-laphu yoshicilelo kunye ne-paste yokudaya kunye neepeyinti ze-latex; njengento etyebisayo yokulinganisa imathiriyeli ngasemva kweekhaphethi. Kwifiber yeglasi, isetyenziswa njenge-arhente yokwenza kunye ne-binder; kwincama yesikhumba, ingasetyenziswa njengesilungisi kunye nesibophelelo. Ukubonelela ngoluhlu olubanzi lwe-viscosity kwezi zigqubuthelo okanye i-adhesives, yenza i-coating ifane kwaye ikhawuleze, kwaye uphucule ukucaca kokuprinta kunye nokudaya.

9. IiCeramics

Ingasetyenziselwa ukwenza izibophelelo eziphezulu zamandla kwiiseramikhi.

10. Intlama yamazinyo

Ingasetyenziswa njenge-thickener xa kusenziwa intlama yamazinyo.