Imwe yezvinowanzo shandiswa zvekuwedzera mune yakaoma-musanganiswa dhaka ihydroxyethyl cellulose (HEC). HEC isiri-ionic cellulose ether ine thickening, kuchengetedza mvura, kugadzikana, uye kumira. Inoshandiswa zvakanyanya mukuvaka zvinhu, kunyanya mune yakaoma-musanganiswa dhaka.
1. Basa reHEC mune yakaoma-musanganiswa dhaka
Mune yakaoma-musanganiswa dhaka, HEC inonyanya kuita basa rekuchengetedza mvura, kukora nekuvandudza kuita kwekuvaka:
Kuchengetwa kwemvura: HEC ine yakanakisa kuchengetedza mvura uye inogona kuderedza kurasikirwa kwemvura. Izvi zvinonyanya kukosha kune yakaoma-musanganiswa dhaka nokuti inowedzera nguva yakazaruka yedhaka, zvichiita kuti vashandi vagadzirise dhaka kwenguva yakareba uye kuvandudza kushanda kwekuvaka. Mukuwedzera, kuchengetwa kwemvura kunogonawo kuderedza dambudziko rekuputika uye kuve nechokwadi kuti nzira yekuomesa dhaka yakawanda uye yakagadzikana.
Kukora: Iko kukora mhedzisiro yeHEC inopa dhaka yakanaka viscosity, ichibvumira dhaka kuti rinamate zviri nani pamusoro peiyo substrate panguva yekuvaka, kwete nyore kutsvedza, uye inovandudza kufanana kwechikumbiro. Hunhu uhu hunonyanya kukosha mukuvaka kwakamira uye hunogona kuvandudza zvakanyanya kunaka kwekuvaka kwedhaka.
Kuvandudza kushanda kwekuvaka: HEC inogona kuita kuti yakaoma-yakasanganiswa dhaka iite nyore uye nyore kuisa, nokudaro kuderedza kuoma kwekushanda. Inoita kuti dhaka rive nekupararira kwakanaka uye kunamatira pane substrate, zvichiita kuti kuvaka kuwedzere kuponesa basa uye kuvandudza kushanda zvakanaka. Uye zvakare, inogona zvakare kuwedzera iyo anti-sagging kugona, kunyanya mukukora layer yekuvaka.
2. HEC yekusarudza maitiro
Paunenge uchisarudza HEC, zvinhu zvakaita sehuremu hwayo hwemamorekuru, dhigirii rekutsiva uye kunyungudika kunofanirwa kutariswa, izvo zvinokanganisa zvakananga kuita kwedhaka:
Molecular uremu: Saizi yehuremu hwemamorekuru inokanganisa kugona kukora uye kuchengetedza mvura kweHEC. Kazhinji kutaura, HEC ine huremu hwakakura hwemamorekuru ine mhedzisiro iri nani yekukora, asi inononoka kupera mwero; HEC ine huremu hudiki hwemamorekuru ine kukurumidza kunyungudika mwero uye zvishoma zvakanyanya kuipa kukora mhedzisiro. Naizvozvo, zvinodikanwa kuti usarudze uremu hwakakodzera hwema molecular maererano nezvinodiwa zvekuvaka.
Dhigirii rekutsiva: Iyo dhigirii yekutsiviwa kweHEC inosarudza solubility yayo uye viscosity kugadzikana. Iyo yakakwirira yedhigirii yekutsiva, zviri nani solubility yeHEC, asi viscosity ichaderera; apo dhigirii yekutsiva yakaderera, viscosity yakakwirira, asi solubility inogona kunge isina kusimba. Kazhinji, HEC ine mwero dhigirii yekutsiva inonyanya kukodzera kushandiswa mudhaka rakaoma-musanganiswa.
Solubility: The dissolution rate yeHEC inokanganisa nguva yekugadzirira kuvaka. Kune yakaoma-yakasanganiswa dhaka, zvakanyanya kunaka kusarudza HEC iri nyore kuparadzira uye kunyungudika nekukurumidza kuvandudza kushanduka kwekuvaka.
3. Kuchengetedza paunenge uchishandisa HEC
Paunenge uchishandisa HEC, iwe unofanirwa kutarisisa kune huwandu hwayo hwekuwedzera uye mamiriro ekushandisa kuti uve nechokwadi chemhedzisiro yakanaka:
Kuwedzera huwandu hwekutonga: Kuwedzera huwandu hweHEC inowanzodzorwa pakati pe0.1% -0.5% yehuremu hwese hwedhaka. Kuwedzeredza kuwedzera kuchaita kuti dhaka rive rakakora uye kukanganisa fluidity yekuvaka; kusakwana kuwedzera kunoderedza mhedzisiro yekuchengeta mvura. Naizvozvo, bvunzo dzinofanirwa kuitwa zvinoenderana nezvinodiwa chaizvo kuona iyo yakakwana yekuwedzera huwandu.
Kuenderana nezvimwe zvinowedzera: Mumatope akaoma-akavhenganiswa, HEC inowanzoshandiswa pamwe chete nezvimwe zvinowedzera zvakadai se redispersible latex powder, cellulose ether, etc. Ngwarira kuenderana kweHEC nezvimwe zvinoshandiswa kuti uone kuti hapana kukakavara uye kukanganisa. mhedzisiro.
Mamiriro ekuchengetedza: HEC is hygroscopic, inokurudzirwa kuichengeta munzvimbo yakaoma uye kudzivirira zuva rakananga. Inofanirwa kushandiswa nekukurumidza sezvinobvira mushure mekuvhurwa kudzivirira kuderedzwa kwekuita.
4. Maitiro ekushandisa kweHEC
Muchishandiso chinoshanda, HEC inogona kuvandudza zvakanyanya mashandiro ekuvaka edhaka-yakasanganiswa dhaka uye kugadzirisa huwandu hwese hwedhaka. Iko kusimba uye kuchengetedza mvura kweHEC kunoita kuti dhaka rakaoma-rakasanganiswa rive nekunamatira kwakanaka uye kugadzikana, izvo zvisingangogadziri kunaka kwekuvaka, asiwo zvinowedzera nguva yakazaruka yevhu, zvichiita kuti vashandi vashande zvakadzikama. Mukuwedzera, HEC inogona kuderedza kuitika kwekuputika pamusoro pevhu, zvichiita kuti dhaka rakaoma rive rakasimba uye rakanaka.
5. Kuchengetedzwa kwezvakatipoteredza uye hupfumi hweHEC
HEC ndeye zvakatipoteredza ine hushamwari cellulose inotorwa iyo biodegradable uye ine hushamwari kwezvakatipoteredza. Uye zvakare, HEC ine mwero mutengo uye inodhura-inoshanda, ichiita kuti ive yakakodzera kupararira kwekusimudzira uye kushandiswa mumhando dzakasiyana dzezvirongwa zvekuvaka. Kushandiswa kweHEC kunogona kuderedza chiyero chemvura-samende yedhaka, nokudaro kuderedza kushandiswa kwemvura, iyo inopindiranawo nemamiriro ezvinhu ezvino ekudzivirira kwezvakatipoteredza mumhizha yekuvaka.
Kushandiswa kweHEC mune yakaoma-yakasanganiswa dhaka kunogona kuvandudza zvakanyanya mashandiro edhaka uye chinhu chakakosha chekuwedzera mukuvaka. Kuchengetwa kwayo kwemvura kwakanaka, kukora uye kuchinjika kwekuvaka kunovandudza kushanda kwekuvaka uye kuita kuti hunhu hugadzikane. Kusarudza
iyo HEC yakakodzera uye kuishandisa nemazvo haigone kungovandudza hutano hwekuvaka, asiwo inosangana nekuchengetedzwa kwezvakatipoteredza uye zvinodiwa zvehupfumi.
Nguva yekutumira: Nov-01-2024