Ese hydroxyethylcellulose irashya

Hydroxyethylcellulose (HEC) ni polymer idafite ionic, amazi-elegitoronike ikomoka kuri selile. Bikunze gukoreshwa mu nganda zitandukanye nka farumasi, amavuta yo kwisiga, ibiryo, nibicuruzwa byumuntu ku giti cye kubera kubyimbye, gutuza, hamwe na gell.

Imiterere yimiti ya Hydroxyethylcellulose

HEC ni polymer yahinduwe ya selile, aho hydroxyethyl yinjizwa mumugongo wa selile. Ihinduka ryongerera amazi amazi nibindi bintu bya selile. Amatsinda ya hydroxyethyl (-CH2CH2OH) ahujwe hamwe na hydroxyl (-OH) ya molekile ya selile. Ihinduka rihindura imiterere yumubiri na chimique ya selile, bigatuma ikwirakwira muburyo butandukanye.

Ibiranga umuriro

1

Cellulose isukuye ni ibintu byaka kuko irimo amatsinda ya hydroxyl, ashobora gutwikwa. Ariko, kwinjiza amatsinda ya hydroxyethyl kumugongo wa selile ihindura ibiranga umuriro. Kubaho kwa hydroxyethyl birashobora kugira ingaruka kumyitwarire ya HEC ugereranije na selile idahinduwe.

2. Kwipimisha umuriro

Kwipimisha umuriro ni ngombwa kugirango umenye ingaruka zumuriro zijyanye nibikoresho. Ibizamini bitandukanye bisanzwe, nka ASTM E84 (Uburyo bwikigereranyo cyikigereranyo cyo gutwika hejuru yubutaka buranga ibikoresho byubaka) na UL 94 (Standard for Safety of Flammability of Plastique for Parts in Devices and Appliances), bikoreshwa mugusuzuma umuriro wibikoresho. Ibi bizamini bisuzuma ibipimo nkumuriro ukwirakwizwa, iterambere ryumwotsi, nibiranga umuriro.

Ibintu bigira ingaruka ku gucana

1. Ibirimwo

Kuba hari ubuhehere bushobora kugira ingaruka ku gutwika ibikoresho. Ibikoresho bya selile bikunda gucanwa cyane iyo birimo ubushyuhe bwinshi bitewe no kwinjiza ubushyuhe ningaruka zo gukonjesha amazi. Hydroxyethylcellulose, kuba amazi ashonga, irashobora kuba irimo ubuhehere butandukanye bitewe nibidukikije.

2. Ingano yubunini nubucucike

Ingano yubunini nubucucike bwibintu birashobora kugira ingaruka kumuriro. Ibikoresho bigabanijwe neza muri rusange bifite ubuso burebure, butera gutwikwa vuba. Nyamara, HEC isanzwe ikoreshwa muburyo bwifu cyangwa ingano hamwe nubunini bugenzurwa kugirango byuzuze ibisabwa byihariye.

3. Kuba hari inyongeramusaruro

Mubikorwa bifatika, hydroxyethylcellulose formulaire irashobora kuba irimo inyongeramusaruro nka plasitike, stabilisateur, cyangwa retardants. Izi nyongeramusaruro zirashobora guhindura ibiranga ibicuruzwa bya HEC. Kurugero, flame retardants irashobora guhagarika cyangwa gutinza gutwika no gukwirakwiza umuriro.

Ibyago byumuriro nibitekerezo byumutekano

1. Kubika no Gukemura

Uburyo bwiza bwo kubika no gufata neza ni ngombwa kugirango ugabanye ingaruka ziterwa n’umuriro. Hydroxyethylcellulose igomba kubikwa ahantu humye, ihumeka neza kure y’ahantu hashobora gutwikwa. Hagomba kwitonderwa kugirango wirinde guhura nubushyuhe bukabije cyangwa urumuri rwizuba, bishobora gutera kubora cyangwa gutwikwa.

2. Kubahiriza amabwiriza

Abakora n’abakoresha hydroxyethylcellulose irimo ibicuruzwa bigomba kubahiriza amabwiriza n’umutekano bijyanye. Inzego zishinzwe kugenzura umutekano n’ubuyobozi bushinzwe umutekano n’ubuzima (OSHA) muri Amerika hamwe n’ikigo cy’uburayi gishinzwe imiti (ECHA) mu muryango w’ubumwe bw’ibihugu by’Uburayi zitanga umurongo ngenderwaho mu gufata neza no gukoresha imiti.

3. Ingamba zo Kurwanya umuriro

Mugihe habaye umuriro urimo hydroxyethylcellulose cyangwa ibicuruzwa birimo HEC, ingamba zikwiye zo guhagarika umuriro zigomba gushyirwa mubikorwa. Ibi bishobora kubamo gukoresha amazi, dioxyde de carbone, ibyuma bizimya imiti yumye, cyangwa ifuro, bitewe nimiterere yumuriro nibidukikije.

hydroxyethylcellulose ni polymer yahinduwe ya selile ikunze gukoreshwa munganda zinyuranye kugirango ibyibushye kandi ituze. Mugihe selile yuzuye ishobora gutwikwa, kwinjiza amatsinda ya hydroxyethyl bihindura ibiranga umuriro wa HEC. Ibintu nkibirimo ubuhehere, ingano yubunini, ubwinshi, hamwe ninyongeramusaruro zirashobora kugira ingaruka kumuriro wibicuruzwa birimo hydroxyethylcellulose. Kubika neza, gufata neza, no kubahiriza amabwiriza yumutekano ni ngombwa kugirango hagabanuke ingaruka z’umuriro zijyanye na HEC. Ubundi bushakashatsi no kwipimisha birashobora kuba nkenerwa kugirango wumve neza imyitwarire yumuriro wa hydroxyethylcellulose mubihe bitandukanye.