Yintoni ethengiweyo

I-Selessese yathunyelweyo i-Selet Sether liqela lemigangatho yezinto eziguquguqukayo kunye nezemizi-mveliso ezivela kwi-seluplose, yenye yezona bhaduli zininzi emhlabeni. Aba bathe baveliswa ngokuguqulwa kwamachiza amaqela e-hydroxyl (------------------------------------------------------------------------------AB YAMABHUNGA OTHANDO LOKUGQIBELA Izicelo ezivela kwiiPhermaceuticals, ukutya, iimveliso zononophelo lobuqu, izinto zokwakha, izinto ezichaziweyo, nangaphezulu.

Ulwakhiwo lweSellUX:
I-sellyulose yi-polysacchaacchaaccharaide edityaniswe ngokuphindaphinda i-Glucose Units edityaniswe yi-β-1,4-Glycosidic Bonds. Iiyunithi eziphindayo ziquka amaqela amathathu e-hlucose kwiyunithi ye-glucose nganye, eyenza i-seluplose i-hydrophilic kwaye ichaphazeleka kulungiso lweekhemikhali ezahlukeneyo.

I-Synthesis ye-Selessese ethathiweyo:
I-synthesis ye-SeleSulose ethabathiweyo iquka ukumiliselwa kwamaqela ahlukeneyo asebenzayo kumaqela e-hydroxyl ye-selsulose. Iindlela eziqhelekileyo zokuzibandakanya ezi zinto zibandakanya i-ether kunye nokuhlonisa.

Ukuphendula kwe-etheriyaist kubandakanya ukufaka endaweni yamaqela e-hydroxyl nge-alkyl okanye amaqela e-Aryl ukwenza unxibelelwano lwe-Ether. Oku kunokufezekiswa ngokuphendula nge-alkyl Hallides, i-alkyl sulfmates okanye i-alkyl yathi phantsi kweemeko ezifanelekileyo. Iiarhente eziqhelekileyo eziqhelekileyo ezisetyenziswayo kwezi zinto zibandakanya i-methyl chloride, i-ethyl chloride, kunye ne-benzy chloride.

Ukudebeka, kwelinye icala, kubandakanya ukutshintsha iqela le-hydroxyl ngeqela le-ACYL ukwenza iqhina le-ster. Oku kunokufezekiswa ngokuphendula nge-acid chloride, amandla omzimba okanye acids phambi kwe-catalysts. Iiarhente eziqhelekileyo ezisetyenziswayo kwezi zinto zibandakanya i-acetic anhydride, i-acetyl chloride, kwaye inamafutha acid.

Iindidi ze-Selesse ethanjisiweyo
I-Methyl Selelose (MC):

I-methylcelfulose iveliswa yi-ether ye-seluplose ne methyl chloride.
Isetyenziswe ngokubanzi njenge-tickener, i-stabilizer kunye ne-mulsifier kwimizi eyahlukeneyo kubandakanya ukutya, amayeza kunye neemveliso zononophelo lomntu.
I-MC ichaza ijeli ecacileyo xa ihlikive kwaye ibonise indlela ye-pseudoplastic, iyenza ilungele izicelo ezifuna ulawulo lwe-viscomity.
HydroxyEthylcelcelce (hec):

I-HydroxyEtheetheetheetheetheetheetheetheetheetheetheetheetheetheetheethl selupose idityaniswe ngu-Etherusase eSelelUlose nase-Ebhonene oxide.
Iqhelekile isetyenziswa njenge-tickener, iarhente yokwakha ifilimu kwi-coyiangs, cosmetics, amayeza kunye namanye amashishini.
I-HEC inika indlela yokuziphatha ye-pseudoplastic kwisisombululo kwaye ibonelela ngeepropathi ezibalaseleyo zokugcina amanzi.
Hydroxypropylcelceluplose (HPC):

I-Hydroxypropyl seluplose iveliswa ngu-Etherpulose ye-seluplose nge-propylene oxide.
Isetyenziswa njenge-thi checker, i-sticker kunye ne-binder kwifomu yamayeza, ngakumbi kwimveliso yetafile kunye nokulawulwa kwenkqubo yokuhambisa iziyobisi.
I-HPC ineepropathi ze-thermogel, yenziwa ngamandla kubushushu obuphakamileyo.
I-carboxeymethylcelcelcelse (cmc):

I-carboxeymethylcelcelcelcelose idityaniswe ngu-Etherpulose ye-Selelose kunye neSodium Moochloortate phantsi kweemeko ze-alkaline.
Isetyenziswe ngokubanzi njenge-thi choner, i-sticker kunye ne-emulsifier ekutyeni, kwizicelo zamayeza kunye nezithuthi.
I-CMC inika i-viscofity kunye nokuziphatha okucekeceke kwiSolutions kwiZisombululo kunye neeNdawo zokusasazeka ezizinzileyo.
I-Ethyl hydroxyyl seluplose (EIC):

I-Ethyl HydroxyEtheetheetheetheetheetheetheetheetheethy yi-Subilose Ether, eveliswa sisiseko esilandelelanayo se-sellyulose ethylene oxide kunye ne-ethyl chloride.
Isetyenziswa njenge-thiicker, i-raduology modifier kunye nefilimu yangaphambili kwizicelo ezahlukeneyo kubandakanya ukunxiba, imibhede kunye neemveliso zononophelo lomntu.
I-EIC ineentshukumo eziphezulu zokungasebenzi kwamanzi kunye nokuhambelana kunokunxibelelana nabantu abahenyuziweyo.
Iimpawu zeSelesese
Iipropathi zeselsulose etshintshiwe Nangona kunjalo, bahlala bebonisa ezi mpawu zilandelayo:

I-hydrophility: i-Selessese yathatha indawo ye-Hydrophilic ngenxa yobukho bamaqela e-hydroxyl kwisakhiwo sabo, esivumela ukuba banxibelelane neemolekyuli zamanzi nge-hydrogen.

Ukutyibilika kunye nokuGqibela: Uninzi lweeSelessese eSelelsulose Talling kunye nePropathi yePropathi, ezikhokelela ekuqulunqweni kwezisombululo ze-viscous okanye iigels kwi-geldration. I-Viscosity kunye namandla e-Gel ixhomekeke kwizinto ezinje nge-polymer gxini kunye nobunzima bemolekyuli.

Ukuqulunqwa kwefilimu: Ezinye ze-Selessesses ezifakelweyo ziyakwazi ukwenza iifilimu ezicacileyo neziguquguqukayo xa ziphoswa kwisisombululo. Le ndawo inoncedo kwizicelo ezinje ngokunxiba, imihlambi, kunye neenkqubo zokuhambisa iziyobisi.

Uzinzo: I-Selesese yeSelsulose ye-Selession ibonakalisa uzinzo oluhle kuluhlu olubanzi lwe-PH kunye neemeko zobushushu. Baxhathisa ukonakaliswa kwentsholongwane kunye ne-encyrolysis ye-hydrolysis, ebangela ukuba balungele iindlela ezahlukeneyo.

Ukuziphatha kakuhle: i-Selessese yeselselose e-Tseudose i-Pseudoplastic okanye indlela yokuziphatha ye-Shear, ethetha ukuba i-viscoting yabo iyancipha phantsi koxinzelelo lwe-Shearcal. Le ndawo inqwenelekayo kwizicelo ezifuna ukuqhubekeka okanye ukuSebenza.

Izicelo zoonyana abathe bangena endaweni yeselsese:
I-Selessese yangaphambi kokuba kutewe isetyenziswe ngokubanzi kumashishini amaninzi ngenxa yepropathi yawo yobuninzi. Ezinye izicelo eziphambili zibandakanya:

Umzi-mveliso wokutya: I-Telulose yathatha indawo efana ne-carboxymethylcelose (CMC) isetyenziswa njenge-thi chulkers, izilo ezisetyenziswayo kunye nee-enulssiber zokutya, iimveliso zobisi kunye neemveliso zobisi. Baphucula ukuqunjelwa, uzinzo kunye nomlomo ngelixa udlulisa ubomi beshelf.

Amayeza: Izinto ezithe zabethelwa ezisele zisetyenziswe ngokubanzi kwiifomu zamayeza njengababizi, ii-venters kunye neearhente ezikhutshelweyo ezilawulwa kwiitafile, iicapbules kunye neefomu eziphambili. Baphucula ukuhanjiswa kweziyobisi, kufungozelwe ukuthotyelwa koguli.

Iimveliso zononophelo lobuqu: endaweni yezithako eziqhelekileyo ziimveliso zononophelo zobuqu ezifana ne-shampoos, i-lotions kunye neekhredithi ngenxa yezixhobo zabo, ukumiswa kwefilimu. Bayazikonza uzinzo lwemveliso, ukuthungwa kunye neempawu zemvakalelo.

Izixhobo zokwakha: Okunye okunye oo kanina basetyenziswa njengezongezo kwizixhobo zokwakha ezifana nesamente, udaka kunye neemveliso ezisekwe gypsim ukuphucula ukusebenza, ukugcinwa kwamanzi kunye nokunamathela amanzi. Baphucula intsebenzo kunye nokuqina kwezi zinto.

Izibalo: endaweni yokutshintsha ii-selsulose esuka kwiinkqubo zokuprinta okubhaliweyo kunye nokugqiba kwenkqubo yokubonelela ngolawulo lwe-viscofity, i-adhesion kunye nokuhlamba ngokukhawuleza ngokukhawuleza. Banceda ekungasebenziyo kwi-DYE yedayi kunye nee-pigment kwi-fastricale.

Ishishini leoyile negesi: Gita ii-seluplose ii-vills kunye neearhente zokuphulukana ne-fluid ekuqhubeni ukusebenza nokhuseleko lweoyile kunye negesi.