I-HydroxyEtheethlcelcelse Le computha isuselwa kwisellulose, i-polymer yendalo efumaneka kwiindonga ezikhulu kwiindonga zeseli. Iipropathi zika-hec zenza ukuba kube lula ukuthambisa iintlobo ngeentlobo zeemveliso, kwiimveliso zobuqu kwiziko lemizi-mveliso.
Ushwankathelo
I-seluplose yi-carbohydrate entsokothileyo ye-glucose molecus edityaniswe yi-β-1,4-Glycosidic Bonds. Yeyona nto iphambili yolwakhiwo lweendonga zeseli zezityalo, ukubonelela ngobuqili kunye namandla okutyala iiseli. Nangona kunjalo, ifom yalo yezommivelo ayisebenzi kwaye inomsebenzi olinganiselweyo kwizicelo ezithile.
I-selsulose Derivatives
Ukwenzela ukuphucula ukusebenza kwe-seluplose, i-dervietes eyahlukeneyo idityanisiwe ngokutshintsha isakhiwo sayo. Elinye i-DydroxyEtheetheethyl seluplose (Hec), apho amaqela e-hydroxyytethy azaziswa kwi-selsebone. Olu hlengahlengiso lunika i-hec i-hec eyahlukileyo, iyenza inyibilike emanzini kwaye iphumelele kakhulu njenge-thi coker.
Iimpawu ze-hec
Ukunyibilikisa
Enye yeempawu eziphambili ze-hec kukomeleza kwawo amanzi. Ngokungafaniyo se-sellyulose yendalo, i-hec inyibilikisa ilula emanzini, yenza isisombululo esicacileyo. Oku kulambance kwenza kube lula ukubandakanya kwiintlobo ezahlukeneyo zefomu.
Iipropathi ze-ROOOOOLOT
I-HEC ibonisa i-pseudoplastic okanye indlela yokuziphatha ye-shear, intsingiselo yokuba ukuvelelwa kwayo kuncitshiswa phantsi koxinzelelo lwe-Shear kwaye kwandiswa kwakhona emva kokuba uxinzelelo luyakhululwa. Le mpahla ibaluleke kakhulu kwizicelo ezifuna lula ukusasazeka okanye ukugalela, njengokuqulunqwa kweepeyinti, imifuno kunye neemveliso zononophelo.
Uzinzo lwePH
UHec uzinzile malunga ne-PH ye-PH, esenza ilungele ukusetyenziswa kwi-acidic, engathathi cala kunye ne-alkaline. Oku kuqalisa ukuba negalelo ekwemkelweni kwawo ngokuxhaphakileyo kumashishini ahlukeneyo kubandakanya i-cosmetics, amayeza kunye nokutya.
Izicelo zakheC
iimveliso zononophelo lomntu
I-shampoos kunye nee-conditioners: hec zihlala zisetyenziselwa ukukhathalela iinwele zeenwele, ukubonelela ngohlobo olufanelekileyo kunye nokuphucula ukuthungwa ngokubanzi.
Iikhrim kunye ne-outs: Kwindlela yokhathalelo lolusu, i-HEC inceda ukufezekisa ukuguquguquka okufunekayo kwaye iphucule ukusasazeka kweekhrim kunye nezilonda.
Izinyo le-Izitisi
Iipeyinti kunye neengubo
Ipeyinti ye-Latex: hec inceda ukukhulisa i-viscofity kunye nokuzinza kwepeyinti ye-Latex, ukuqinisekisa ukusebenza komphezulu.
Iincwadana ezinemidlalo: Kwimidlalo yokunamathela, i-HEC iyanceda ukulawula uViscosity kunye nokuphucula iipropathi zokubonisa.
ichiza
Ukunqunyanyiswa komlomo: I-HEC isetyenziselwa ukunqunyulwa komlomo okunyanzeliswayo ukubonelela ngefom emiselweyo nengxamisekileyo yecandelo lamayeza.
I-Gels ePhezulu: Ukuzalwa kwe-hec emanzini kwenza ukuba kube lufaneleke ukwenziwa kweegels eziphezulu, ukuqinisekisa lula ukusetyenziswa kunye nokuthathwa.
Ishishini lokutya
Iisosi kunye nokunxiba: I-HEC isetyenziselwa ukukhulula iisosi kunye nokunxiba, ukuphucula ubume babo kunye nomlomo.
Iimveliso ezibhakiweyo: Kwiindawo zokupheka ezihambayo, i-HEC inceda amagqabi kunye neengcongconi.
Ukuvelisa kunye nokulawulwa komgangatho
synthesis
I-hec idla ngokuveliswa yi-ether ye-seluplose ne-ithoynene oxide phantsi kweemeko ezilawulwayo. Inqanaba lokufakwa endaweni yeqela le-hydroxyyl linokuhlengahlengiswa ngexesha lenkqubo yeSynthesi, ngaloo ndlela ichaphazela intsebenzo yokugqibela ye-hec.
QC
Amanyathelo olawulo esemgangathweni kubalulekile ukuqinisekisa ukusebenza okungaguqukiyo kwe-hec kwizicelo ezahlukeneyo. Iiparamitha ezinje ngobunzima bemolekyuli, isidanga sokufaka kunye nokucoceka kujongwa ngononophelo ngexesha lenkqubo yemveliso.
Ukuqwalaselwa kokusingqongileyo
Njengayo nayiphi na into yecandelo lemichiza, izinto zokusingqongileyo zibalulekile. I-Hec isuselwa kwisellum kwaye ingenangqondo ngakumbi kunamatye amanye amanzi anokwenziwa. Nangona kunjalo, kubalulekile ukuqwalasela ifuthe lendalo esingqongileyo lemveliso kunye nokusetyenziswa kwezicelo ezahlukeneyo.
ukuququmbela
Kwisishwankathelo, i-hydroxylcetrase (hec) ivela njenge-gickener esebenzayo nenguqulelo yezicelo kumashishini amaninzi. Iipropathi zayo ezizodwa, kubandakanya ukubenzela amanzi, indlela yokuziphatha kakuhle kunye nokuzinza kwe-PH, yenza isithako esixabisekileyo kwizinto ezahlukeneyo zemveliso. Njengoko amashishini aqhubeka nokufuna iindlela ezizezinye zendalo, i-hec's biodegramd ye-biodegraphid efumaneka kwi-selsulose yesityalo yenza ukhetho oluzinzileyo lwezicelo ezahlukeneyo. Ukuqhubeka kophando kunye nezinto ezintsha kwii-selsulose zeselselese ezinjenge-HCC kunokukhokelela kwinkqubela phambili ngakumbi, ukubonelela ngentsebenzo ephezulu kunye nokuncitshiswa kwendalo.
IXESHA LOKUQALA: I-DEC-02-2023