Hydroxyethylcellulose (HEC) ipolymer inonyungudika nemvura inoshandiswa zvakanyanya mumaindasitiri akasiyana siyana uye emazuva ese zvigadzirwa zvevatengi, kunyanya muzvigadzirwa zvekuchengetedza uye zvekugezesa. Iyo ine yakanaka thickening, kumisa, emulsifying, firimu-kuumba uye inodzivirira colloid mabasa, saka inowanzoshandiswa seyakakora mune sipo yemvura.
1. Chimiro uye zvimiro zvehydroxyethyl cellulose
HEC is nonionic derivative inowanikwa kubva ku cellulose kuburikidza ne etherification reaction uye ine yakasimba hydration kugona uye hydrophilicity. Iyo molecular cheni yeHEC ine akawanda hydroxyethyl mapoka anotsiva maatomu ehydrogen echisikigo cellulose, achigadzira nhevedzano yeakareba-cheni mamorekuru zvimiro. Iyi molecular structure inobvumira HEC kukurumidza kuzvimba mumvura kuti iite yunifomu viscous solution.
Chinhu chakakosha cheHEC kuchinjika kwayo kune akasiyana pH kukosha. Inochengetedza kukora kwayo pamusoro pehupamhi pH renji, ichipa mukana wakakura mune zvigadzirwa senge sipo yemvura, inogona kunge iine akawanda anoshanda zvinosanganisa uye pH shanduko. Pamusoro pezvo, HEC zvakare ine yakanaka biocompatibility uye chengetedzo, uye yakakodzera kushandiswa mune dzakasiyana zvigadzirwa zvinosangana nemuviri wemunhu, senge sipo yemvura, shampoo, nezvimwe.
2. Kukora mashandiro ehydroxyethyl cellulose mu sipo yemvura
Mukugadzira sipo yemvura, nzira huru yekuita yeHEC seyakakora ndeyekuwedzera viscosity yemvura sipo nekunyungudika mumvura kuti iite viscous solution. Kunyanya, kana HEC yanyungudutswa mumvura, maketani ayo mamorekuru anosanganiswa nemamorekuru emvura kuburikidza neintermolecular hydrogen bond kuti iite yakaoma network. Ichi chimiro chetiweki chinogona kunyatsosunga nhamba huru yemamorekuru emvura, nekudaro zvakanyanya kuwedzera viscosity yemhinduro.
Iyo thickening mhedzisiro yeHEC inowirirana zvakanyanya nehuremu hwayo hwemamorekuru uye huwandu hwekuwedzera. Kazhinji kutaura, hukuru hwema molecular huremu hweHEC, iyo yakakwirira viscosity yemhinduro yakagadzirwa; panguva imwe chete, iyo yakakwirira yeHEC mumhinduro, iyo inonyanya kuoneka iyo thickening mhedzisiro ichave. Zvisinei, mukushandiswa kunoshanda, kunyanya kukoshesa HEC kunogona kuita kuti mhinduro ive yakanyanyisa uye inokanganisa ruzivo rwevashandisi, saka inoda kunyatsogadziriswa panguva yekugadzira dhizaini.
3. Zvakanakira HEC thickening effect
HEC ine akati wandei akakosha mabhenefiti pane mamwe thickeners. Chokutanga pane zvose, ine mvura yakanaka kwazvo yekunyungudika uye inogona kukurumidza kunyungudika mumvura inotonhora kana inopisa uye inogadzira yunifomu viscous solution. Chechipiri, HEC haingori gobvu zvinobudirira pakudzika kwakadzika, asi zvakare inopa yakagadzikana yekukora mhedzisiro, iyo inonyanya kukosha mune yemvura sipo zvigadzirwa zvinoda kuchengetwa kwenguva refu. Chechitatu, se-non-ionic thickener, HEC inogona kuchengetedza viscosity yakagadzikana pasi pemamiriro akasiyana epH uye haisi nyore kukanganiswa nezvimwe zvikamu muhurongwa.
4. Kushandisa maitiro eHEC mukugadzira sipo yemvura
Mukugadzirwa chaiko, HEC inowanzowedzerwa kune yemvura sipo magadzirirwo muupfu fomu. Kuti ive nechokwadi chekuti HEC inogona kunyungudika zvizere uye nekuita iyo thickening mhedzisiro, zvinowanzodiwa kuti utarise kune imwecheteyo yekusanganisa kana uchiwedzera HEC kuti udzivise agglomeration. Pamusoro pezvo, kuitira kuti uwedzere kukwidziridza kushanda kwesipo yemvura, HEC inowanzo shandiswa pamwe chete nemamwe makobvu, humectants kana ma surfactants kuti uwane yakanakira chigadzirwa magadzirirwo uye ruzivo rwemushandisi.
Semukobvu unoshanda, hydroxyethyl cellulose ine tarisiro yakafara yekushandisa mu sipo yemvura. Inogona kuwedzera zvakanyanya viscosity yechigadzirwa uye kuvandudza ruzivo rwemushandisi. Iyo zvakare ine kuenderana kwakanaka uye kugadzikana uye isarudzo yakanaka yekukora sipo yemvura.
Nguva yekutumira: Aug-19-2024