Ibakala lemihla ngemihla lekhemikhali i-hydroxypropyl methylcellulose yipolymer eyenziwe ngeselulosi yendalo ngokuguqulwa kweekhemikhali. I-ether ye-cellulose iphuma kwi-cellulose yendalo. Ukuveliswa kwe-cellulose ether kuyahluka kwiipolymers zokwenziwa. Izinto zayo ezisisiseko ziyi-cellulose, i-polymer compound yendalo. Ngenxa yobungcali besakhiwo se-cellulose yendalo, i-cellulose ngokwayo ayinakho ukusabela kunye nee-etherification agents. Nangona kunjalo, emva kokunyangwa kwe-ejenti yokuvuvukala, iibhondi ze-hydrogen ezomeleleyo phakathi kwamatyathanga e-molecular kunye namatyathanga atshatyalaliswa, kwaye ukukhutshwa okusebenzayo kweqela le-hydroxyl kuba yi-alkali cellulose esebenzayo. Fumana i-ether cellulose.
Umgangatho wemichiza wemihla ngemihla i-hydroxypropyl methylcellulose ngumgubo omhlophe okanye omthubi kancinane, kwaye ayinavumba, ayinancasa kwaye ayinayo ityhefu. Inokunyibilika emanzini abandayo kunye ne-solvent edibeneyo yezinto eziphilayo ukwenza isisombululo esicacileyo se-viscous. Ulwelo lwamanzi lunomsebenzi ongaphezulu, ukukhanya okuphezulu, ukuzinza okuqinileyo, kwaye akuchaphazeli i-pH xa inyibilika emanzini. Ineziphumo ezityebileyo kunye ne-antifreeze kwiishampu kunye neegels zeshawa, kwaye inokugcinwa kwamanzi kunye neempawu ezilungileyo zokwenza ifilimu yeenwele kunye nolusu. Ngokunyuka okubukhali kwezinto ezisisiseko, ukusetyenziswa kweselulosi (antifreeze thickener) kwishampu kunye nejeli yeshawa kunokunciphisa kakhulu iindleko kwaye kufezekiswe umphumo oyifunayo.
Iimpawu kunye nezibonelelo zemihla ngemihla ye-cellulose yeekhemikhali ze-HPMC:
1. Ukucaphuka okuphantsi, ukushisa okuphezulu kunye ne-non-toxic;
2. Ukuzinza kwexabiso le-pH ebanzi, enokuqinisekisa ukuzinza kwayo kuluhlu lwexabiso le-pH 3-11;
3. Ukuphucula imeko;
4. Ukwandisa i-foam, ukuzinzisa i-foam, ukuphucula ukuvakalelwa kwesikhumba;
5. Ukuphucula ngokufanelekileyo ukuhamba kwamanzi kwisistim.
Umda wokusetyenziswa kwe-HPMC yomgangatho wekhemikhali yomgangatho weseli:
Isetyenziswa kwishampu, ukuhlamba umzimba, isicoci sobuso, i-lotion, i-cream, ijeli, i-toner, i-conditioner, imveliso yesitayile, intlama yamazinyo, i-mouthwash, amanzi okudlala.
Indima yemihla ngemihla yomgangatho wemichiza yeselulosi yeHPMC:
Kwizinto zokuthambisa, isetyenziselwa ukutyeba, ugwebu, i-emulsification ezinzileyo, i-dispersion, i-adhesion, ukuphuculwa kokwenza ifilim kunye nokugcinwa kwamanzi kwiipropathi zokuthambisa, iimveliso ze-viscosity ephezulu zisetyenziselwa ukutyeba, iimveliso ezine-viscosity ephantsi zisetyenziselwa ukunqunyanyiswa. ukusasazeka kunye nokwenza ifilimu.
Itekhnoloji ye-HPMC yomgangatho wemichiza yemihla ngemihla:
I-viscosity ye-hydroxypropyl methylcellulose efanelekileyo kwishishini lemichiza lemihla ngemihla liyi-100,000, i-150,000, kunye ne-200,000. Ngokwefomula yakho, inani lokongezwa kwimveliso lihlala li-3 ukuya ku-5/1000.
Ixesha lokuposa: Nov-22-2022