Makumbo maajenti senge hydroxyethyl cellulose (HEC) anowanzoshandiswa mumaindasitiri akasiyana siyana, kusanganisira zvekuzora, mishonga yemishonga, uye kugadzira chikafu, kuwedzera viscosity uye kugadzikana kwekuumbwa. HEC isiri-ionic, mvura-inonyungudika polima yakabva muselulosi uye inozivikanwa nekunaka kwayo kukora zvinhu, pamwe nekukwanisa kwayo kugadzira mhinduro dzakajeka uye dzakagadzikana. Kana iwe uri kutsvaga kukora mhinduro ine HEC, pane akati wandei matekiniki aunogona kushandisa.
1. Kunzwisisa Hydroxyethyl Cellulose (HEC)
Chemical Structure: HEC inobva kune cellulose, inova inongoitika polima inowanikwa mumiti. Kuburikidza nekuchinja kwemakemikari, mapoka ehydroxyethyl anounzwa muchimiro che cellulose, achiwedzera kunyungudika kwemvura uye kukora zvivakwa.
Kunyungudika kweMvura: HEC inonyanya kunyungudika mumvura, ichigadzira mhinduro dzakajeka uye dzakajeka pamusoro pehuwandu hwehuwandu.
Kuomesa Mechanism: HEC inokora zvigadziriso kunyanya kuburikidza nekugona kwayo kupinza uye kuteya mamorekuru emvura mukati mengetani dzepolymer, ichigadzira network inowedzera viscosity.
2.Techniques for Thickening HEC Solutions
Wedzera Kuwedzera: Imwe yedzakareruka nzira yekukora mhinduro ine HEC ndeyekuwedzera iyo yekuisa pfungwa. Sezvo huwandu hweHEC mune mhinduro inokwira, ndizvo zvinoitawo viscosity yayo. Nekudaro, panogona kunge paine zvipimo zvinoshanda kune iyo yakanyanya kusungirirwa nekuda kwezvinhu zvakaita sekunyungudika uye chinodiwa chigadzirwa zvivakwa.
Nguva yeHydration: Kubvumira HEC kuti iite hydrate zvizere isati yashandiswa inogona kuvandudza kunaka kwayo. Nguva yeHydration inoreva nguva inodiwa kuti HEC zvimedu zviputike uye zvipararire zvakafanana mune zvinonyungudutsa. Nguva yakareba ye hydration kazhinji inoguma nemhinduro dzakakora.
Tembiricha Kudzora: Tembiricha inogona kukanganisa viscosity yeHEC mhinduro. Kazhinji, tembiricha yepamusoro inodzikisira viscosity nekuda kwekuderedzwa kwepolymer chain entanglement. Sezvineiwo, kudzikisa tembiricha kunogona kuwedzera viscosity. Nekudaro, tembiricha yakanyanyisa inogona kukanganisa kugadzikana kwemhinduro kana kutungamirira kune gelation.
pH Kugadziriswa: Iyo pH yemhinduro inogona kukanganisa kushanda kweHEC seyakakora. Nepo HEC yakagadzikana pamusoro pehupamhi pH renji, kugadzirisa iyo pH kune yayo yakakwana huwandu (kazhinji yakatenderedza isina kwayakarerekera) inogona kuwedzera kukora kushanda.
Co-solvents: Kuunza co-solvents inoenderana neHEC, senge glycols kana madoro, inogona kushandura mhinduro zvivakwa uye kuwedzera kukora. Co-solvents inogona kufambisa HEC kupararira uye hydration, zvichikonzera kuwedzera viscosity.
Shear Rate: Shear rate, kana chiyero chekushungurudzika kunoshandiswa kune mhinduro, inogona kukanganisa viscosity yeHEC mhinduro. Yepamusoro shear mazinga anowanzo konzera kudzikira viscosity nekuda kwekurongeka uye kutaridzika kwema polymer cheni. Sezvineiwo, yakaderera shear mitengo inofarira kuwedzera viscosity.
Kuwedzerwa kweMunyu: Mune zvimwe zviitiko, kuwedzerwa kwemunyu, zvakadai se sodium chloride kana potassium chloride, inogona kuwedzera kuwedzera kweHEC. Minyu inogona kuwedzera iyo ionic simba remhinduro, zvichitungamira kune yakasimba polymer kupindirana uye yakakwirira viscosity.
Kusanganiswa nemamwe maThickeners: Kubatanidza HEC nemamwe makobvu kana rheology modifiers, senge xanthan chingamu kana guar gum, inogona synergistically kuwedzera thickening zvivakwa uye kunatsiridza kugadzikana kwese kuumbwa.
3.Practical Kufunga
Muedzo Wekuenderana: Usati waisa HEC mukugadzira kana kushandisa maitiro ekukora, zvakakosha kuita bvunzo yekuenderana kuti uve nechokwadi chekuti zvikamu zvese zvinopindirana. Kuenderana kuyedzwa kunogona kuona zvingangoitika sekuparadzana kwechikamu, gelation, kana kuderedzwa kushanda.
Optimization: Kuomesa HEC mhinduro dzinowanzoda chiyero pakati pe viscosity, kujeka, kugadzikana, uye zvimwe zvekugadzira zvivakwa. Optimization inosanganisira yakanaka-tuning paramita senge HEC kusungwa, pH, tembiricha, uye zvekuwedzera kuti uwane inodiwa chigadzirwa maitiro.
Formulation Stability: Kunyange zvazvo HEC inowanzogadzikana pasi pemamiriro ezvinhu akasiyana-siyana, zvimwe zvinhu zvakadai sekushisa kwakanyanya, pH yakanyanyisa, kana zviwedzere zvisingaenderani zvinogona kukanganisa kugadzikana kwekugadzirisa. Kungwarira dhizaini dhizaini uye kugadzikana kuyedzwa kwakakosha kuti uve nechokwadi chemhando yechigadzirwa uye kuita nekufamba kwenguva.
Regulatory Mafungiro: Zvichienderana nekwakagadzirirwa kushandiswa kwechigadzirwa chakakora, nhungamiro yemitemo inogona kuraira zvinotenderwa zvinosanganisirwa, kutariswa, uye kunyorwa zvinodiwa. Izvo zvakakosha kutevedzera zvinoenderana nemitemo uye zviyero kuti ive nechokwadi chekutevedzera uye kuchengetedzwa kwevatengi.
Kuomesa mhinduro dzine hydroxyethyl cellulose (HEC) inoda kunzwisiswa kwakadzama kwezvivakwa zvayo uye hunyanzvi hwakasiyana hwekuita kuti viscosity uye kugadzikana. Nekugadzirisa zvinhu zvakaita sekutarisa, nguva ye hydration, tembiricha, pH, zvinowedzera, uye shear rate, zvinokwanisika kugadzirisa HEC maumbirwo kuti asangane nezvinodiwa zvekushandisa. Nekudaro, kuwana iyo inodiwa yekukora mhedzisiro uchichengetedza kujeka kwechimiro, kugadzikana, uye kuenderana kunoda kungwarira kuyedza, optimization, uye kuomerera kune zvinongedzo zvinongedzo. Nekugadzira kwakaringana dhizaini uye kuyedzwa, HEC inogona kushanda seyakagwinya gobvu mumiriri kune akasiyana siyana maindasitiri, ichiwedzera mashandiro uye kukwezva kwezvigadzirwa zvisingaverengeki.
Nguva yekutumira: Mar-29-2024