Hydroxyethyl Cellulose (HEC) isiri-ionic mvura-inonyungudika polima inoshandiswa zvakanyanya mumachira, zvizorwa, mushonga, chikafu, kugadzira mapepa, kuchera mafuta uye mamwe maindasitiri minda. Iro cellulose ether compound inowanikwa ne etherification ye cellulose, umo hydroxyethyl inotsiva chikamu che hydroxyl mapoka e cellulose. Izvo zvemuviri uye zvemakemikari zvimiro zvehydroxyethyl cellulose zvinoita kuti ive imwe yezvakakosha zvikamu zve thickeners, gelling agents, emulsifiers uye stabilizers.
Kubikira poindi yehydroxyethyl cellulose
Hydroxyethyl cellulose ndeyepamusoro molecular polymer ine huremu hombe hwemamorekuru, uye nzvimbo yayo yekubikira haisi nyore kuona seiyo yemakomponi madiki mamorekuru. Mumashandisirwo anoshanda, zvinhu zvakakwirira zvemamorekuru zvakaita sehydroxyethyl cellulose hazvina nzvimbo yekubikira yakajeka. Chikonzero ndechekuti zvinhu zvakadaro zvinoora panguva yekudziya, pane kushandura zvakananga kubva kumvura kuenda kune gasi kuburikidza nechikamu shanduko seyakajairwa diki mamorekuru zvinhu. Naizvozvo, pfungwa ye "boiling point" yehydroxyethyl cellulose haishande.
Kazhinji, kana hydroxyethyl cellulose ichipisa pakupisa kwepamusoro, inotanga kunyunguduka mumvura kana organic solvent kuti igadzire colloidal solution, uyezve patembiricha yepamusoro, cheni yepolymer inotanga kutsemuka uye pakupedzisira kuparara, ichiburitsa mamorekuru madiki semvura, kabhoni dhaidhiyodhi uye zvimwe zvinhu zvinoputika pasina kuita yakajairwa kufashaira. Nokudaro, hydroxyethyl cellulose haina nzvimbo yekubikira yakajeka, asi tembiricha yekuora, iyo inosiyana nehuremu hwayo hwemamorekuru uye dhigirii rekutsiva. Kazhinji, tembiricha yekuora yehydroxyethyl cellulose inowanzopfuura 200°C.
Thermal kugadzikana kwehydroxyethyl cellulose
Hydroxyethyl cellulose ine kugadzikana kwakanaka kwekemikari patembiricha yekamuri, inogona kumirisana nehumwe huwandu hweasidhi uye alkali nharaunda, uye ine kumwe kupikisa kupisa. Nekudaro, kana tembiricha yakakwira zvakanyanya, kunyanya mukushaikwa kwezvinonyungudutsa kana zvimwe zvinodzikamisa, maketani epolymer achatanga kutsemuka nekuda kwekuita kwekupisa. Iyi nzira yekuora yekupisa haiperekedzwe nekubikira kuri pachena, asi kuti zvishoma nezvishoma kutsemuka kweketani uye kupera simba kwemvura, kuburitsa zvinhu zvinoputika uye pakupedzisira kusiya zvigadzirwa zvekabhoni.
Mukushandiswa kwemaindasitiri, kuitira kudzivirira kuparara kunokonzerwa nekupisa kwakanyanya, hydroxyethyl cellulose kazhinji haionekwe kune nharaunda inodarika tembiricha yekuora kwayo. Kunyangwe mukupisa kwekushisa kwepamusoro (sekushandisa kwemafuta ekuchera mvura), hydroxyethyl cellulose inowanzoshandiswa pamwe chete nezvimwe zvinhu kuwedzera kugadzikana kwayo kwekupisa.
Kushandiswa kwehydroxyethyl cellulose
Kunyangwe hydroxyethyl cellulose isina nzvimbo yekubikira yakajeka, kunyungudika kwayo uye kukora zvimiro zvinoita kuti ishandiswe zvakanyanya mumaindasitiri mazhinji. Semuyenzaniso:
Indasitiri yekupfekedza: hydroxyethyl cellulose inogona kushandiswa seyakakora kuti ibatsire kugadzirisa rheology yejasi, kudzivirira kunaya kwemvura uye kuvandudza kuenzana nekugadzikana kwejasi.
Cosmetics uye makemikari ezuva nezuva: Icho chinhu chakakosha mumishonga yakawanda yekuchenesa, ganda rekuchengetedza zvigadzirwa, shampoos uye mazino, izvo zvinogona kupa chigadzirwa chimiro chakanaka, kunyorova uye kugadzikana.
Indasitiri yemishonga: Mukugadzirira kwemishonga, hydroxyethyl cellulose inowanzoshandiswa mukugadzirwa kwemapiritsi anoramba achiburitswa uye machira kudzora kuburitswa kwezvinodhaka.
Indasitiri yechikafu: Seyakakora, stabilizer uye emulsifier, hydroxyethyl cellulose inoshandiswawo muchikafu, kunyanya muice cream, jelly uye sosi.
Kuchera mafuta: Mukuchera muoiri, hydroxyethyl cellulose chinhu chakakosha chemvura yekuchera, iyo inogona kuwedzera viscosity yemvura, kudzikamisa madziro etsime uye kuderedza kurasikirwa kwedhaka.
Sezvinhu zvepolymer, hydroxyethyl cellulose haina painofashaira yakajeka nekuti inoora patembiricha yakakwira pachinzvimbo chezvinofashaira chiitiko. Kupisa kwayo kwekuora kwekupisa kunowanzopfuura 200 ° C, zvichienderana nehuremu hwayo hwema molecular uye dhigirii yekutsiva. Zvakangodaro, hydroxyethyl cellulose inoshandiswa zvakanyanya mumachira, zvizorwa, mushonga, chikafu uye peturu nekuda kwekunaka kwayo kukora, gelling, emulsifying uye kudzikamisa zvivakwa. Mumashandisirwo aya, kazhinji inodzivirirwa kubva pakuratidzwa kune yakanyanya kupisa tembiricha kuti ive nechokwadi chekuita kwayo uye kugadzikana.
Nguva yekutumira: Oct-23-2024