Hydroxyethylcellulose ni ibintu bisanzwe cyangwa sintetike?

Intangiriro kuri Hydroxyethylcellulose (HEC):

Hydroxyethylcellulose ikomoka kuri selile, isanzwe ibaho polysaccharide iboneka murukuta rw'utugingo ngengabuzima. Cellulose igizwe no gusubiramo glucose ihuza hamwe na β-1,4 glycosidic. Hydroxyethylcellulose iboneka muguhindura selile binyuze mugutangiza amatsinda ya hydroxyethyl (-CH2CH2OH) kumugongo wacyo.

Uburyo bwo kubyaza umusaruro:

Etherification ya Cellulose: Umusaruro wa HEC urimo etherification ya selile. Ubu buryo busanzwe butangirana na selile ikomoka kumiti cyangwa ipamba.

Igisubizo hamwe na Oxide ya Ethylene: Cellulose noneho ikorwa na okiside ya Ethylene mubihe bya alkaline. Iyi myitwarire iganisha ku gusimbuza amatsinda ya hydroxyl kumugongo wa selile hamwe nitsinda rya hydroxyethyl, bikavamo hydroxyethylcellulose.

Isuku: Igicuruzwa noneho gisukurwa kugirango gikureho reagent zose zidakozwe hamwe nibicuruzwa byo kuruhande.

Ibyiza bya Hydroxyethylcellulose:

Gukemura: HEC irashonga mumazi akonje kandi ashyushye, ikora ibisubizo bisobanutse neza bitewe nubunini.

Viscosity: Yerekana imyitwarire ya pseudoplastique, bivuze ko ububobere bwayo bugabanuka hamwe no kongera umuvuduko wogosha. Ubwiza bwibisubizo bya HEC burashobora guhindurwa nibintu bitandukanye nko kwibanda hamwe nurwego rwo gusimburwa.

Ibiranga firime: HEC irashobora gukora firime zoroshye kandi zifatanije, bigatuma iba ingirakamaro mubikorwa bitandukanye aho bisabwa gukora firime.

Umukozi wibyimbye: Bumwe mu buryo bwibanze bukoreshwa na HEC ni nkibintu byiyongera muburyo butandukanye, nk'amavuta yo kwisiga, imiti, n'ibicuruzwa byita ku muntu.

Porogaramu ya Hydroxyethylcellulose:

Amavuta yo kwisiga hamwe n’ibicuruzwa byita ku muntu: HEC ikoreshwa cyane mu mavuta yo kwisiga n’ibicuruzwa byita ku muntu ku giti cye nk'umubyimba, stabilisateur, hamwe na firime ikora firime mu bicuruzwa nk'amavuta yo kwisiga, amavuta, amavuta, shampo, hamwe n'amenyo.

Imiti ya farumasi: Mubikorwa bya farumasi, HEC ikora nkumukozi uhagarika, uhuza, hamwe na matrix-igenzurwa-isohora ibinini byanditseho ibinini.

Irangi hamwe n’ibifuniko: HEC ikoreshwa mu gusiga amarangi ashingiye ku mazi no gutwikisha nk'impinduka nini kandi ihindura imvugo kugira ngo igenzure ububobere no kunoza imiterere.

Inganda z’ibiribwa: Mu nganda z’ibiribwa, HEC ikoreshwa nkibintu byiyongera kandi bigahindura ibicuruzwa nkibisosi, imyambarire, n’ibikomoka ku mata.

Impaka zisanzwe cyangwa Sintetike Impaka:

Gutondekanya hydroxyethylcellulose nkibisanzwe cyangwa sintetike birashobora kugibwaho impaka. Dore impaka zivuye muburyo bwombi:

Impaka zo gutondekanya nka Sintetike:

Guhindura imiti: HEC ikomoka kuri selile ikoresheje uburyo bwo guhindura imiti irimo reaction ya selile na okiside ya Ethylene. Ihinduka ryimiti rifatwa nkubukorikori muri kamere.

Umusaruro winganda: HEC ikorwa cyane cyane mubikorwa byinganda zirimo reaction zagenzuwe hamwe nintambwe zo kwezwa, zisanzwe zikorana ninganda.

Impamyabumenyi yo Guhindura: Urwego rwo gusimbuza HEC rushobora kugenzurwa neza mugihe cya synthesis, byerekana inkomoko yubukorikori.

Impaka zo gutondekanya nkibisanzwe:

Bikomoka kuri Cellulose: HEC amaherezo ikomoka kuri selile, polymer karemano iboneka cyane mubihingwa.

Inkomoko ishobora kuvugururwa: Cellulose, ibikoresho byo gutangiza umusaruro wa HEC, iboneka mubikoresho bishobora kuvugururwa nkibiti byimbuto nipamba.

Ibinyabuzima bishobora kwangirika: Kimwe na selile, HEC irashobora kwangirika, igacamo ibice bitagira ingaruka mubidukikije mugihe runaka.

Imikorere isa na Cellulose: Nubwo ihindurwa ryimiti, HEC igumana ibintu byinshi bya selile, nko gukomera mumazi na biocompatibilité.

hydroxyethylcellulose ni polymer itandukanye ikomoka kuri selile ikoresheje uburyo bwo guhindura imiti. Mugihe umusaruro wacyo urimo reaction yubukorikori hamwe ninganda zinganda, amaherezo ikomoka kumasoko karemano kandi ashobora kuvugururwa. Impaka zo kumenya niba HEC igomba gushyirwa mubikorwa nkibisanzwe cyangwa ikomatanya byerekana ingorane zo gusobanura aya magambo murwego rwa polimeri karemano yahinduwe. Nubwo bimeze bityo ariko, ibinyabuzima byangiza ibidukikije, amasoko ashobora kuvugururwa, hamwe n’imikorere isa na selile yerekana ko ifite ibiranga ibinyabuzima bisanzwe ndetse nubukorikori, bigahindura imipaka iri hagati yibi byiciro byombi.