Yintoni i-hydroxyythl seluplose

I-HYDROXYTYL: Isishwankathelo
I-HydroxyEtheetheetheetheetheethy (hec) i-polymer engeyiyo i-ionic, i-poly-all-all-i-polymer ethathwe kwi-seluplose, oyena mntu ubalaseleyo we-polymer eninzi emhlabeni. Ngenxa yeepropathi zayo eziguquguqukayo, i-HEC isetyenziswa ngokubanzi kumashishini ahlukeneyo, kubandakanya amayeza, cosmetics, iipeyinti kunye nolwakhiwo.

Synthesis ye-hydroxyythl seluplose
Ukuveliswa kwe-hec kubandakanya ukuthantamisa kwe-seluplose. Le nkqubo iqala nge-selulose ephathwe nge-sodium hydroxide ukuba ivelise i-alkali sellulose. I-Ebanonene Oxide yongezwa kulo mxube, okukhokelela kulwakhiwo lwe-hydroxyyteethyl seluplose. Indlela yokusabela inokumelwa ngolu hlobo lulandelayo:

I-Selsulose-Onna + NCH2C2C2O → Iselilup-Ech2ch2oh

Inqanaba lokufakwa endaweni (DS) kunye ne-molar I-DS ibhekisa kwinani eliphakathi lamaqela e-hydroxyl kwimolekyuli ye-selselose ethe yafakwa endaweni ye-moles, ngelixa i-MS ibonisa inani le-moles ye-ithocone iyunithi nganye ye-Gluolose. Ezi parameter zinefuthe ku-Solubity, i-viscosity, kunye nezinye iipropathi ezisebenzayo zeHec.

I-HEC inezinto ezininzi ezahlukileyo:

Ukunyibilikisa: I-hec inyibilika kumanzi ashushu nabandayo, eyenza ibe ntshukumo yezicelo ezahlukeneyo. Ingayicacisa isisombululo esicacileyo, sizinzileyo esizinzileyo soluhlu lwe-pH.

I-Viskosity: UVenkile weZisombululo zeHec uxhomekeke kubunzima bemolekyuli kunye noxinzelelo. I-hec inokuvelisa uluhlu olubanzi lokuphila, iyenza iluncedo kwizicelo ezifuna iimpawu ezithile zokuhamba.

Isakhono sokwenza ifilimu: Hec sinokwenza iifilimu eziguqukayo, ezibonakalayo. Le ndawo iluncedo ikakhulu kwingubo kunye ne-cosmetics.

Iarhente yokuthambisa: I-HEC yiarhente esebenzayo yokuthambisa, ukubonelela ngokungqinelana okufunwayo kunye nokuzinza kwenkqubo.

Uzinzo: I-Hec iZiziseko zekhemikhali kwaye ixhathise ukonakaliswa kukukhanya, ubushushu, kunye ne-microorganisosm, ephucula ubomi obude kakhulu kwizicelo.

Izicelo ze-hydroxyyl seluplose
Ngenxa yepropathi yayo eyahlukileyo, i-HEC ifumana izicelo kwimihlaba emininzi:

Amayeza: Kumzi-mveliso wamayeza, i-HEC isetyenziswa njenge-binder, ifilimu - yangaphambili, kunye ne-arhente yokuqaqamba kwiitafile kunye neoyile. Kuyanceda ukukhutshwa ngamachiza okulawula iziyobisi kwaye kuphucula ukuthungwa kunye nokuzinza kwefomu.

I-Cosmetics: Hec isetyenziswa rhoqo kwiimveliso zononophelo zobuqu ezifana ne-shampoos, i-lotions kunye neekhrim. Inika i-viscofity efunwayo, iphucula iimvakalelo zemveliso, kwaye ikwazi ukuzinza.

Iipeyinti kunye neengubo: kumzi-mveliso wepeyinti, i-hec isebenza njenge-thi churner, i-stabilizer, kunye nearhente yokugcina amanzi. Iphucula iipropathi zesicelo zepeyinti, zithintela ukungcungcutheka, kwaye iqinisekisa ukuba ifilimu.

Ulwakhiwo: I-HEC isetyenziswa kwizixhobo zokwakha njengesamente kunye nodaka. Iphucula ukusebenza, ukugcinwa kwamanzi, kunye nokunamathela, ukuphucula ukusebenza kunye nokuqina kwezi zinto.

Ishishini lokutya: Nangona liqhelekile, i-HEC lingasetyenziswa njenge-thi cokener kunye nokuzinza kwiimveliso ezithile zokutya, ukuqinisekisa ubume obuthambileyo kunye nokungaguquguquki.

Umzi-mveliso we-imeyile: i-HEC isetyenziswa njengearhente ye-supity kwishishini lendwangu, ebonelela ngamandla kunye nokuzinza kwiintambo ngexesha lenkqubo yokuluka.

UKHUSELEKO NEEMPILO YOKHUSELEKILEYO
I-HEC ithathelwa ingqalelo ukuba ikhuseleke kwizicelo ezahlukeneyo, ngakumbi kwiindawo zamayeza kunye ne cosmetics, apho icinyiwe kakhulu kwityhefu kunye nokucaphukisa. Ayisiyo inetyhefu, engacaphukiyo, kunye ne-hypoallergenic, iyenza ilungele ukusetyenziswa kwiimveliso ezisetyenziswayo kulusu okanye lungenise.

Ukusuka kwimbono yendalo esingqongileyo, i-hec yibhayini enokutsha kwaye ifumaneka kwizibonelelo ezihlaziyiweyo (Seleculose). Ukuveliswa kwayo kunye nokusetyenziswa kwayo kunxulunyaniswa nefuthe elisezantsi lokusingqongileyo. Nangona kunjalo, njengazo zonke iichemicals, ukuphatha ngokufanelekileyo kunye nokulahlwa kuyayimfuneko ukunciphisa nayiphi na ingozi yendalo esingqongileyo.

I-HydroxyEtheetheetheetheetheetheetheetheetheetheetheetheetheetheethl yi-selliley yi-polymer eguquguqukayo nexabisekileyo yoluhlu olubanzi lwezicelo kuwo onke amashishini. Iipropathi zayo ezahlukileyo, ezinjengokungathobeli kwamanzi, ulawulo lwe-viscosity, ubuchule bokwenza ifilimu, kunye nozinzo, zenza ukuba lube nokungabi nazinzo, kuyenzeka ukuba ingabaluleki kwiimveliso ezivela kwizixhobo zokwakha. I-synthesis ye-Hec evela kwi-sellulose imele ukusetyenziswa ngokufanelekileyo kwendalo, igalelo kukuzinza kwazo. Ngeprofayili yokhuseleko eyomeleleyo kunye nefuthe elincinci lokusingqongileyo, uHec uyaqhubeka nokuba nesicelo esibaluleke kakhulu kwiziko ezahlukeneyo zorhwebo kunye nezomveliso.