Yintoni i-cellulose ether?

Umthombo oyintloko we-cellulose kwimveliso yorhwebo ye-cellulose ether yi-pulp yomthi, nangona ezinye iindawo ezisekelwe kwizityalo ezifana nekotoni kunye nezinye iimveliso zezolimo nazo zingasetyenziswa. I-cellulose ithatha uluhlu lwezonyango zonyango, kubandakanywa ukuhlanjululwa, i-alkalization, i-etherification, kunye nokomisa, ukuvelisa imveliso yokugqibela ye-cellulose ether.

I-Cellulose ether inikezela ngeepropati ezininzi ezinqwenelekayo ezenza ukuba zixabiseke kwizicelo ezahlukeneyo:

1.Ukunyibilika kwamanzi:I-Cellulose ether iqhele ukunyibilika emanzini, eyivumela ukuba isasazwe ngokulula kwaye ifakwe kwiindlela ezahlukeneyo. Yenza izisombululo ezicacileyo nezizinzileyo emanzini, zibonelela ngokugqwesa okugqwesileyo kunye neempawu zokuzinzisa.
2.Ukuguqulwa kweRheology:Enye yeenzuzo eziphambili ze-cellulose ether kukukwazi ukuguqula indlela yokuziphatha kunye ne-viscosity yolwelo. Inokuthi isebenze njenge-ejenti yokuqina, ibonelela ngokuhambelana okuphuculweyo, ukuthungwa, kunye nokuzinza kwiimveliso. Ngokulungelelanisa uhlobo kunye nomthamo we-cellulose ether, kunokwenzeka ukuba ufezekise uluhlu olubanzi lwee-viscosities, ukusuka kwi-low-viscosity fluids ukuya kwi-gel viscous kakhulu.
3.Ukwenziwa kwefilimu:I-ether ye-cellulose inokwenza iifilimu xa isisombululo somisiwe. Ezi filimu ziselubala, zibhetyebhetye, kwaye zinamandla okuqina. Zisenokusetyenziswa njengeengubo zokukhusela, izibophelelo, okanye iimatriki kwizicelo ezahlukeneyo.
4. Ugcino lwaManzi:I-ether ye-cellulose ineempawu ezibalaseleyo zokugcina amanzi. Kwizicelo zokwakha, inokusetyenziswa kwiimveliso ezisekwe kwisamente ukomeleza ukusebenza, ukunciphisa ilahleko yamanzi, kunye nokuphucula inkqubo yokufakwa kwamanzi. Oku kukhokelela ekuphuculweni kophuhliso lwamandla, ukunciphisa ukuqhekeka, kunye nokuqina kokuqina kwekhonkrithi yokugqibela okanye udaka.
5.Ukuncamathela kunye nokuBophelela:I-ether ye-cellulose ibonisa iimpawu zokuncamathelisa, iyenza ibe luncedo njenge-binder kwizicelo ezahlukeneyo. Inokukhuthaza ukunamathela phakathi kwezixhobo ezahlukeneyo okanye isebenze njenge-agent ebophelelayo kwiipilisi, iigranules, okanye iifomyula ezenziwe ngumgubo.
6.Uzinzo lweChemical:I-ether ye-cellulose iyamelana ne-hydrolysis phantsi kweemeko eziqhelekileyo, inika uzinzo kunye nokusebenza kuluhlu olubanzi lwamanqanaba e-pH. Oku kuyenza ilungele ukusetyenziswa kwindawo eneasidi, yealkaline, okanye engathathi hlangothi.
7.Uzinzo lweThermal:I-ether ye-cellulose ibonisa ukuzinza okuhle kwe-thermal, evumela ukuba igcine iimpawu zayo kuluhlu olubanzi lwamaqondo okushisa. Oku kuyenza ilungele izicelo ezibandakanya ukufudumeza okanye iinkqubo zokupholisa.

Ibakala elidumileyo leCellulose ether

I-cellulose ether ifumaneka kumabakala ahlukeneyo, ngalinye lineempawu zalo ezithile kunye neempawu.Amanqanaba e-cellulose ether asetyenziswa ngokuqhelekileyo aquka i-Hydroxypropyl Methylcellulose (HPMC), i-Methyl Hydroxyethylcellulose (MHEC), i-Hydroxyethylcellulose (HEC), i-Carboxymethylcellulose (CMC), i-Ethyl Hydroxyethylcellulose ), i-Ethylcellulose (EC), kunye ne-Methylcellulose (MC). Masiphonononge ibakala ngalinye ngokweenkcukacha ezithe vetshe:

1.IHydroxypropyl Methylcellulose (HPMC):

I-HPMC yenye yezona zisetyenziswa kakhulu ii-ether zeselulosi. Ithathwe kwi-cellulose ngokuguqulwa kweekhemikhali kunye nepropylene oxide kunye ne-methyl chloride. I-HPMC yaziwa ngokugcina amanzi, ukutyeba, kunye neempawu zokwenza ifilim. Ibonelela ngokusebenza okugqwesileyo, ukunamathela okuphuculweyo, kunye nexesha elongeziweyo elivulekileyo kwizicelo zokwakha ezinje nge-drymix mortars, i-adhesives ye-tile, kunye ne-cement renders. Kumashishini amayeza, i-HPMC isetyenziswa njenge-binder, ifilimu yangaphambili, kunye ne-ejenti ekhutshwayo elawulwayo kwi-tablet formulations.
2.Methyl Hydroxyethylcellulose (MHEC):

I-MHEC ibakala le-cellulose ether eveliswa ngokuphendula i-cellulose kunye ne-methyl chloride kunye ne-ethylene oxide. Inika iipropati ezifanayo kwi-HPMC kodwa inamandla okugcina amanzi aphuculweyo. Ngokuqhelekileyo isetyenziswe kwi-adhesives tile, i-grouts, kunye nezixhobo ezisekelwe kwi-samente apho ukuphuculwa kokusebenza, ukugcinwa kwamanzi kunye nokubambelela kuyadingeka. I-MHEC iphinda ifumane isicelo kwishishini lamachiza njenge-binder kunye ne-agent-forming agent kwi-tablet formulations.
3.I-Hydroxyethylcellulose (HEC):

I-HEC ivela kwi-cellulose ngokudibanisa amaqela e-ethylene oxide. Iyanyibilika emanzini kwaye ibonelela ngokutyeba okugqwesileyo kunye neempawu zolawulo lwerheology. I-HEC isetyenziswa ngokuqhelekileyo kwiimveliso zokunyamekela komntu, ezifana ne-shampoos, i-conditioners, kunye ne-lotions, ukubonelela nge-viscosity, ukuphucula ukuzinza kwe-foam, kunye nokuphucula iimpawu ze-sensory. Ikwasetyenziswa njenge-thickener kunye ne-binder kwiipeyinti, i-coatings, kunye ne-adhesives.

4.Carboxymethylcellulose (CMC):

I-CMC iveliswa ngokusabela i-cellulose kunye ne-sodium monochloroacetate ukwazisa amaqela e-carboxymethyl kwikhonkco leselulosi. I-CMC inyibilika kakhulu emanzini kwaye ibonisa ukutyeba okugqwesileyo, ukuzinzisa, kunye neempawu zokwenza ifilim. Isetyenziswa ngokuqhelekileyo kushishino lokutya njengento etyebisayo, i-stabilizer, kunye ne-emulsifier kuluhlu olubanzi lweemveliso, kubandakanywa ubisi, i-bakery, i-sauces, kunye neziselo. I-CMC ikwaqeshwa kumachiza, kukhathalelo lomntu, nakumashishini amalaphu.

5.Ethyl Hydroxyethylcellulose (EHEC):

I-EHEC yibakala le-cellulose ether edibanisa iimpawu ze-ethyl kunye ne-hydroxyethyl substitutions. Inika ukuqina okuphuculweyo, ulawulo lwerheology, kunye nokugcina amanzi. I-EHEC isetyenziswa ngokuqhelekileyo kwiingubo ezisekelwe emanzini, i-adhesives, kunye nezixhobo zokwakha ukuphucula ukusebenza, ukuxhathisa i-sag, kunye nokwakheka kwefilimu.
6.Ethylcellulose (EC):

I-EC yi-ether ye-cellulose engeyiyo i-ionic esetyenziswa ngokuyinhloko kumashishini amayeza kunye neengubo. Ayinyibiliki emanzini kodwa iyanyibilika kwizinyibilikisi zendalo. I-EC ibonelela ngeempawu zokwenza ifilim, iyenza ilungele ukukhutshwa kweenkqubo zokuhanjiswa kweziyobisi ezilawulwayo, i-enteric coatings, kunye ne-barrier barriers. Ikwasetyenziswa nasekuveliseni ii-inki ezikhethekileyo, iilacquers, kunye nezincamathelisi.
7.Methylcellulose (MC):

I-MC ithathwe kwi-cellulose ngokongezwa kwamaqela e-methyl. Iyanyibilika emanzini kwaye ibonisa ifilimu ebalaseleyo, ukujiya, kunye neempawu zokumisela. I-MC iqhele ukusetyenziswa kwishishini lamachiza njengesibophelelo, i-disintegrant, kunye ne-viscosity modifier kwi-tablet formulations. Ikwasetyenziswa kushishino lokutya njengento etyebisayo, ukuzinzisa, kunye ne-emulsifier kwiimveliso ezahlukeneyo.
La mabakala e-cellulose ether anika uluhlu olubanzi lwemisebenzi kwaye akhethwe ngokusekelwe kwiimfuno ezithile zesicelo ngasinye. Kubalulekile ukuqaphela ukuba ibakala ngalinye linokuba neenkcukacha ezahlukeneyo kunye neempawu zokusebenza, kubandakanywa i-viscosity, ubunzima bemolekyuli, inqanaba lokutshintsha, kunye nobushushu bejeli. Abavelisi banikezela ngamaxwebhu edatha yobugcisa kunye nezikhokelo zokuncedisa ekukhetheni ibakala elifanelekileyo lokuqulunqwa okanye ukusetyenziswa okuthile.

amabakala e-cellulose ether afana ne-HPMC, i-MHEC, i-HEC, i-CMC, i-EHEC, i-EC, kunye ne-MC ineempawu ezahlukeneyo kwaye zisetyenziswa kumashishini ahlukeneyo. Banikezela ngokugcinwa kwamanzi, ukuqina, ukwenza ifilimu, ukunamathela, kunye neempawu zokuphucula ukuzinza. Lawa mabakala e-cellulose ether adlala indima ebalulekileyo kwizinto zokwakha, amayeza, iimveliso zokunakekelwa komntu, ukutya, iipeyinti kunye neengubo, i-adhesives, kunye nokunye, okunegalelo ekusebenzeni kunye nokusebenza koluhlu olubanzi lokuqulunqwa kunye neemveliso.

I-ether yeCellulose ifumana usetyenziso olubanzi kumashishini ahlukeneyo:

I-1.Ishishini loKwakha: Kulwakhiwo, i-cellulose ether isetyenziswa njengesongezo esibalulekileyo kwi-drymix mortars, i-adhesives tile, i-grouts, i-cement renders, kunye ne-self-leveling compounds. Iphakamisa ukusebenza, ukugcinwa kwamanzi, ukunamathela, kunye nokuqina kwezi zixhobo. Ukongezelela, i-ether ye-cellulose iphucula ukusebenza kweenkqubo zangaphandle ze-thermal insulation systems (ETICS) ngokunyusa ukunamathela kunye nokuguquguquka kwe-adhesive mortar.

I-2.Ishishini lezamayeza: I-ether ye-cellulose isetyenziswa ngokubanzi kwimixube yamayeza. Isebenza njenge-binder, i-disintegrant, kunye ne-ejenti yokukhululwa elawulwayo kwiifom ze-tablet. Ibonelela ngobulukhuni obuphuculweyo bethebhulethi, ukuqhekeka okukhawulezayo, kunye neempawu zokukhutshwa kweziyobisi ezilawulwayo. Ngaphezu koko, i-ether ye-cellulose ingasetyenziswa njenge-modifier ye-viscosity kwi-formulations yolwelo, ukumiswa, kunye ne-emulsions.

I-3.Ukunyamekelwa koBuntu kunye neZithambiso: Kwiimveliso zokunyamekela komntu, i-cellulose ether iqeshwe njenge-agent agent, i-stabilizer, kunye ne-agent-forming agent. Inika ukuthungwa okufunwayo kunye neepropathi zerheological kwiikhrimu, izinto zokuthambisa, iijeli, iishampu, kunye nezinye iindlela zokhathalelo lomntu. I-ether ye-cellulose inceda ukuphucula ukuzinza, ukusasazeka, kunye namava oluvo ngokubanzi kwezi mveliso. Isenokuphucula umgangatho we-foam kwiifom zokucoca.

I-4.Ishishini lokuTya: I-ether ye-Cellulose isetyenziswa kwishishini lokutya njenge-ejenti yokuqina, i-emulsifier, i-stabilizer, kunye ne-fiber supplement supplement. Inokuphucula ukuthungwa, umlomo, kunye nobomi beshelufu yeemveliso zokutya. I-Cellulose ether idla ngokusetyenziswa kwisaladi enxitywayo, i-sauces, i-bakery fillings, izimuncumuncu ezikhenkcezisiweyo, kunye ne-fat-low or low-calorie formulations.

I-5.Iipeyinti kunye neeNgqungquthela: I-ether ye-cellulose isetyenziswe kwiipende kunye neengubo njenge-rheology modifier kunye ne-agent agent. Inceda ukulawula i-viscosity, ukuhamba, kunye neempawu zokulinganisa zeengubo. I-ether ye-cellulose iphinda iphucule ukuzinza kunye nokusabalalisa kwee-pigments kunye nezigcwalisi kwiifom zepeyinti.

I-6.I-Adhesives kunye ne-Sealants: I-ether ye-cellulose ifumana isicelo kwi-adhesives kunye ne-sealants ukuphucula i-viscosity yabo, i-adhesion, kunye nokuguquguquka. Iphucula ukusebenza kunye nokunyanzeliswa kokuqulunqwa, okwenza ukuba ukudibanisa okusebenzayo kwezinto ezahlukeneyo.

I-7.Ishishini le-Oyile kunye neGesi: I-ether ye-cellulose isetyenziselwa ukugrumba ulwelo kunye nolwelo olugqityiweyo kwishishini leoli kunye negesi. Inika ulawulo lwe-viscosity, ukunciphisa ukulahleka kwamanzi, kunye neempawu zokuthintela i-shale. I-cellulose ether inceda ukugcina uzinzo kunye nokusebenza kolwelo lokomba phantsi kweemeko ezinzima.

8. Ushishino olulukiweyo: Kushishino olulukiweyo, i-cellulose ether isetyenziswa njenge-ajenti ejiyayo yokuprinta intlama yelaphu. Iphucula ukuhambelana, ukuhamba, kunye nokudluliselwa kombala kweepasti zokuprinta, iqinisekisa ukuprintwa okufanayo kunye nokuqina.