Chii chinonzi hydroxyethyl cellulose?

Hydroxyethyl cellulose (HEC) ipolmer inonyungudika nemvura inotorwa kubva muselulosi, polysaccharide inongoitika inowanikwa muzvirimwa. HEC inogadzirwa kuburikidza nekushandurwa kwe cellulose nekuwedzerwa kwemapoka e-hydroxyethyl, ayo akabatanidzwa kune zvikamu zveglucose zve cellulose molecule. Iyi shanduko inoshandura zvimiro zve cellulose uye inoita kuti ishande mumhando dzakasiyana dzekushandisa, senge mumaindasitiri ezvekudya, ekuzora, uye emishonga.

HEC imhando yepolymer ine zvakawanda zvakasiyana-siyana, ine huwandu hwehuremu hwemamorekuru uye madhigirii ekutsiva, iyo inosarudza zvimiro zvayo, sekunyungudika kwayo, viscosity, uye gelation. Chiyero chekutsiva chiyero chenhamba yemapoka e-hydroxyethyl akabatanidzwa kune yega yega glucose unit ye ​​cellulose molecule, uye inogona kubva pa1 kusvika ku3, ine madhigirii epamusoro anoratidza huwandu hukuru hwemapoka ehydroxyethyl.

HEC inoshandiswa mumhando dzakasiyana-siyana seyakakora, stabilizer, uye binder. Inogona kushandiswa kuwedzera viscosity yekuumbwa kwemvura, kuvandudza magadzirirwo uye muromo wezvigadzirwa zvekudya, uye kuwedzera kugadzikana kwema emulsions. Muindasitiri yemishonga, HEC inoshandiswa sebhainda remapiritsi, seyakakora yekugadzira topical, uye seyakagadziriswa-inoburitsa mumiriri wehurongwa hwekuunza zvinodhaka.

Chimwe chezvinhu zvinonyanya kukosha zveHEC kugona kwayo kugadzira gels mumvura. Apo HEC yakanyungudutswa mumvura, inogona kuumba gel kuburikidza nenzira inozivikanwa se hydration. Iyo gelation process inotsamira pane dhigirii rekutsiva, molecular uremu, uye kusungwa kweHEC mumhinduro. Iyo gelation process yeHEC inogona kudzorwa kuburikidza nekugadziriswa kwezviyero izvi, izvo zvinoita kuti zvive zvakakosha mumhando dzakasiyana dzekushandisa.

HEC inowanzoshandiswa muindasitiri yezvekudya seyakakora uye inodzikamisa muzvigadzirwa zvakaita sesosi, madhirezi, uye soups. Inogona kuvandudza magadzirirwo uye muromo wezvigadzirwa izvi, uye kuwedzera kugadzikana kwavo nekufamba kwenguva. HEC inogonawo kushandiswa kugadzirisa emulsions, yakadai semayonesi, nekudzivirira kuparadzaniswa kwemafuta nemvura zvikamu.

Muindasitiri yezvizorwa, HEC inoshandiswa mumhando dzakasiyana dzezvigadzirwa zvekuchengeta munhu, zvinosanganisira shampoos, conditioners, lotions, uye creams. HEC inogona kuvandudza magadzirirwo uye kuenderana kwezvigadzirwa izvi, kusimudzira hunhu hwavo hwekunyorova, uye kupa hunyoro, velvety kunzwa. Inogonawo kudzikamisa emulsions mumagadzirirwo ezvizoro uye kubatsira kudzivirira kuparadzaniswa kwemafuta nemvura zvikamu.

Muindasitiri yemishonga, HEC inoshandiswa sebhainda mukugadzirwa kwehwendefa kuti ive nechokwadi chekuti zvigadzirwa zvepiritsi zvinoramba zvakamanikidzwa pamwechete. Iyo inoshandiswa zvakare seyakakora kune topical formulations, iyo inogona kusimudzira viscosity uye kugadzikana kwemafuta ekuzora. Uyezve, HEC inoshandiswa seyakagadziriswa-yakasunungurwa mumiririri wekutengesa zvinodhaka, iyo inogona kudzora chiyero icho mishonga inobudiswa mumuviri.

HEC ine akati wandei akasiyana zvivakwa zvinoita kuti ive inobatsira polymer mune akasiyana maapplication. Zvimwe zvezvivakwa izvi zvinosanganisira:

Mvura-solubility: HEC inonyanya kunyunguduka mumvura, izvo zvinoita kuti zvive nyore kuisa mumvura-based formulations.

Kwete-chepfu uye biocompatible: HEC inowanzoonekwa seyakachengeteka uye biocompatible zvinhu, izvo zvinoita kuti ive yakakosha mumishonga uye zvizorwa application.

Yakasiyana-siyana: HEC ipolymer inosiyana-siyana inogona kushandiswa mumhando dzakasiyana dzemashandisirwo nekuda kwekugona kwayo kugadzira gels uye kugadzirisa kune akasiyana madhigirii ekutsiva uye mamorekuru uremu.

Mukupedzisa, hydroxyethyl cellulose ipolmer inonyungudika nemvura inotorwa kubva museru kuburikidza nekuwedzera kwemapoka ehydroxyethyl.