I-Hydroxyyethyl methyl cellulose (hemc)i-cellulose ether ether compound futhi ingeyakwawo ongeyena i-ether ether. I-Hemc itholakala ngokuguqulwa kwamakhemikhali nge-cellulose yemvelo njengento eluhlaza. Isakhiwo saso siqukethe ama-hydroxyethyls kanye ne-methyl substitunts, ngakho-ke inezakhiwo ezihlukile ngokomzimba nangamakhemikhali futhi isetshenziswa kabanzi ezintweni zokwakha, ukugqoka, amakhemikhali nsuku zonke, umuthi kanye nezinye izinkambu.
1. Izakhiwo zenyama nezamakhemikhali
I-Hemc imvamisa i-powder emhlophe noma ye-off-emhlophe noma ama-granules, ancibilika kalula emanzini abandayo ukwakha ikhambi elisobala noma elincanyana le-turmid. Izici zalo eziphambili zifaka:
I-Solubinity: I-hemc ingancibilikisa ngokushesha emanzini abandayo, kepha ine-soubity empofu emanzini ashisayo. I-solubility yayo kanye ne-viscosity ishintsha ngezinguquko ekushiseni nasevezweni se-PH.
Umphumela wokuqina: I-Hemc inekhono eliqinile elikhudlwana emanzini futhi lingakhulisa ngempumelelo ukubonwa kwesixazululo.
Ukugcinwa kwamanzi: Kunokusebenza okuhle kakhulu kokugcina amanzi futhi kungavimbela ukulahleka kwamanzi ekuqukethwe.
Impahla eyakha ifilimu: I-hemc ingakha ifilimu ebonakalayo evamile ebusweni ngokuqina okuthile namandla.
Ukugcona: Ngenxa yesakhiwo sayo esiyingqayizivele samangqamuzana, i-hemc inganikeza ukuthambisa okuhle kakhulu.
2. Inqubo yokukhiqiza
Inqubo yokukhiqiza ye-hemc ikakhulukazi ifaka lezi zinyathelo ezilandelayo:
I-Alkalization: I-cellulose yemvelo iphathwa ngaphansi kwezimo ze-alkali ukuze zithole i-Alkali Cellulose.
Ukusabela kwe-Etherification: Ngokungeza ama-methylating ejenti (njenge-methyl chloride) kanye nama-hydroxyetherlayiting agents (njenge-ethylene onides), i-cellulose ithola ukusabela kokuthelwa kwezinga lokushisa elithile kanye nengcindezi.
Ukwelashwa kwePost: Umkhiqizo ongemiphumela ophumayo awuthathi hlangothi, ugezwe, omisiwe, futhi ochotshoziwe ekugcineni utholeIpikiliimikhiqizo.
3. Izindawo ezikhulu zohlelo lokusebenza
. Kungathuthukisa i-viscosity, ukugcinwa kwamanzi kanye nezindawo ezilwa nama-anti-zivikele izinto zokwakha, zokwanda isikhathi esivulekile, futhi ngaleyo ndlela kuthuthukise ukusebenza kokwakha.
. Ngaphezu kwalokho, inganikeza izakhiwo ezinhle ezakha amafilimu, enze umfaniswano wokupenda ulingana kakhulu futhi bushelelezi.
. Ngenxa yokuphepha kwayo okuphezulu kanye nokuqina, kuvame ukusetshenziswa emikhiqizweni efana namaconsi eso, abahlanza ubuso kanye ne-lotions.
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4. Izinzuzo nokuvikelwa kwemvelo
I-Hemc ine-biodegradeality ephezulu kanye nezimpawu zokuvikela imvelo futhi ngeke kubangele ukungcoliswa kwesikhathi eside kusendaweni. Ngasikhathi sinye, akuyona ingozi futhi ayinangozi, ayicasuli esikhunjeni somuntu kanye nolwelwesi lwama-mucous, futhi ihlangabezana nezidingo zokuvikelwa kwemvelo okuluhlaza kanye nentuthuko esimeme.
5. Amathemba emakethe kanye nezitayela zentuthuko
Ngokuthuthuka kwemboni yezokwakha kanye nemboni yamakhemikhali yansuku zonke, isidingo semakethe se-hemc siyaqhubeka sikhula. Ngokuzayo, njengoba abantu benaka kakhulu izinto zokwakha ezinobungane bemvelo futhi bathuthukise ukusebenza komkhiqizo, i-hemc izosetshenziswa kabanzi emikhakheni ehlukahlukene. Ngaphezu kwalokho, ucwaningo kanye nokuthuthukiswa kwemikhiqizo emisha ye-hemc esebenzayo (efana nohlobo olungamelana khona lokushisa nokuvimbela okusheshayo) kuzothuthukisa nesicelo salo emakethe ephezulu.
Njenge-cellunctional kanye ne-celmulaose ether ephezulu,I-Hydroxyyethyl methylcellulose (hemc)Idlala indima ebalulekile ekwakheni, embonini, emithini kanye nezinye izinkambu ezinezakhiwo zayo ezihlukile zenyama nangamakhemikhali. Ngokuthuthuka kwesayensi nobuchwepheshe kanye nokwanda kwezinkambu zohlelo lokusebenza, i-hemc izodlala indima ebaluleke kakhulu embonini yanamuhla futhi inikeze ukusekelwa okuqinile ekuthuthukiseni izimboni ezihlobene.
Isikhathi sePosi: Nov-11-2024