Hydroxyethylcellulose (HEC) is nonionic, mvura-soluble polymer inotorwa kubva ku cellulose. Nekuda kweiyo yakasarudzika rheological zvimiro, inowanzoshandiswa mumaindasitiri akasiyana siyana anosanganisira mishonga, zvizorwa uye kuvaka. Chimwe chezvinhu zvakakosha zvehydroxyethyl cellulose ndeye viscosity yayo, iyo inoita basa rakakosha pakuona kushanda kwayo mumashandisirwo akasiyana.
Viscosity chiyero chekuramba kwemvura kuyerera. Panyaya ye hydroxyethylcellulose, viscosity yayo inobatwa nezvinhu zvakati wandei, kusanganisira kutarisisa, tembiricha uye shear rate. Kunzwisisa zvinhu izvi zvakakosha pakugadzirisa kushandiswa kweHEC mune zvakasiyana-siyana.
Iyo viscosity ye hydroxyethylcellulose zvakanyanya zvinoenderana nekusangana kwayo mumhinduro. Muzhinji, sezvo HEC yakawedzera, viscosity yayo inowedzerawo. Aya maitiro akafanana nemapolymer mhinduro uye anowanzo kutsanangurwa nemagetsi mutemo modhi inoenderana viscosity nekufungisisa.
Tembiricha zvakare ine yakakosha mhedzisiro pane viscosity yehydroxyethyl cellulose mhinduro. Muzviitiko zvakawanda, viscosity inoderera nekuwedzera kwekushisa. Iyi tembiricha senitivity yakakosha kune maapplication apo zvinhu zvinoda kuchinja mune viscosity, senge panguva yekugadzira kana kana ichiiswa kune akasiyana nzvimbo.
Shear rate ndechimwe chinhu chakakosha chinokanganisa viscosity yehydroxyethyl cellulose. Chiyero cheshear (shear rate) zvinoreva mwero wekuti matinji ari pedyo anofamba achienderana. Iyo viscosity yeHEC mhinduro inowanzo ratidza shear kuonda maitiro, zvichireva kuti sezvo shear rate inowedzera, viscosity inoderera. Ichi chivakwa chinobatsira mumashandisirwo akadai semachira uye anonamira panodiwa nyore kushandisa.
Iyo molecular huremu hwehydroxyethyl cellulose inosarudzawo viscosity yayo. Yakakwira molecular uremu HECs inowanzove nepamusoro viscosities pane yakapihwa concentration. Hunhu uhwu hwakakosha pakusarudza giredhi chairo reHEC kune imwe application.
Mukugadzirwa kwemishonga, hydroxyethylcellulose inowanzoshandiswa seyakakora mumiriri mumuromo uye topical dosage mafomu. Iyo viscosity yeHEC inovimbisa kumiswa kwakaringana kwezvikamu uye inopa kuenderana kunodiwa kwekuita nyore dosing. Uyezve, iyo shear-kuonda maitiro eHEC inogona kuvandudza kupararira kweiyo topical formulations.
Muindasitiri yezvizorwa, hydroxyethylcellulose inoshandiswa mumhando dzakasiyana dzezvigadzirwa, zvinosanganisira shampoos, lotions uye makirimu. Yayo viscosity-inogadzirisa zvivakwa inobatsira kuvandudza kugadzikana uye magadzirirwo ezvigadziriso izvi, nekudaro zvichiwedzera ruzivo rwese rwemushandisi.
Muindasitiri yekuvaka, hydroxyethylcellulose inowanzoshandiswa seyakakora muzvigadzirwa zvine simende. Iyo viscosity yeHEC inobatsira kudzora kuyerera uye processability yezvinhu panguva yekushandisa. Izvi zvinonyanya kukosha kune zvikumbiro zvakadai sematairi adhesives uye grouts.
Iyo viscosity yehydroxyethyl cellulose ndiyo yakakosha parameter inokanganisa kuita kwayo mumashandisirwo akasiyana. Kunzwisisa zvinhu zvinopesvedzera viscosity, senge kutarisisa, tembiricha, uye shear rate, yakakosha pakugadzirisa kushandiswa kweHEC mumaindasitiri akasiyana. Se polymer inoshanda zvakasiyana-siyana, hydroxyethyl cellulose inoramba ichiita basa rakakosha mukuvandudza mashandiro ezvigadzirwa zvakasiyana mumaindasitiri akasiyana.
Nguva yekutumira: Jan-25-2024