(Hydroxypropyl)methyl cellulose | I-CAS 9004-65-3

(Hydroxypropyl)methyl cellulose, eyaziwa sisishunqulelo sayo HPMC okanye inombolo yayo CAS 9004-65-3, yi cellulose ether ephuma kwi cellulose yendalo. Yipolymer eyisemi-synthetic esetyenziswa kakhulu kumashishini ahlukeneyo ngenxa yeempawu zayo ezizodwa kunye nokuguquguquka. Nalu ujongo olusondeleyo kule khompawundi:

Ulwakhiwo neePropati:
Isakhiwo se-1: I-HPMC idityaniswe ngokuguqulwa kweekhemikhali ze-cellulose, apho zombini i-methyl (-CH3) kunye ne-hydroxypropyl (-CH2CHOHCH3) amaqela aziswa kwi-cellulose backbone.
I-2 Degree of Substitution (DS): Iqondo lokutshintsha libhekiselele kumyinge wenani lamaqela abambeleyo kwiyunithi yeglucose kwikhonkco leselulosi. Imisela iipropati ze-HPMC, ezifana nokunyibilika, i-viscosity, kunye nokukwazi ukwenza ifilimu.
3 Iipropati: I-HPMC ibonisa iipropati ezinjengokuqina, ukugcinwa kwamanzi, ukwakhiwa kwefilimu, kunye nomsebenzi ongaphezulu. Iipropati zinokuhlengahlengiswa ngokulawula i-DS ngexesha lokudibanisa.

Imveliso:
1.Ukufumana iCellulose: Iselulosi, eyona imathiriyeli ekrwada ye-HPMC, ifunyanwa kwimithombo ehlaziyekayo efana nentlaka yeplanga okanye umqhaphu.
I-Etherification: I-Cellulose idlula kwi-etherification, apho iphendulwa ngepropylene oxide ukwazisa amaqela e-hydroxypropyl kwaye emva koko nge-methyl chloride ukongeza amaqela e-methyl.
2.Ukuhlanjululwa: I-cellulose elungisiweyo ihlanjululwe ukuze isuse ukungcola kunye neemveliso, okukhokelela kwimveliso yokugqibela ye-HPMC.
Usetyenziso:
3.Ishishini loKwakha: I-HPMC isetyenziswa kakhulu kwizinto zokwakha ezifana nodaka olusekwe kwisamente, iiplates, kunye nokuncamatheliswa kweethayile ukuphucula ukusebenza, ukugcinwa kwamanzi, kunye nokunamathela.
I-4.I-Pharmaceuticals: Isebenza njenge-binder, i-thickener, ifilimu yangaphambili, kunye ne-stabilizer kwi-formulations yamachiza kuquka iipilisi, ii-capsules, izisombululo ze-ophthalmic, kunye ne-topical creams.
5.Ishishini lokuTya: I-HPMC isebenza njenge-thickener, i-stabilizer, kunye ne-emulsifier kwiimveliso zokutya ezahlukeneyo ezifana neesosi, izinxibo, ii-ice creams, kunye nezinto ezibhakiweyo.
I-6.I-Cosmetics kunye neNkathalo yoMntu: Kwizinto zokuthambisa kunye neemveliso zokunyamekela, i-HPMC isetyenziswa njenge-thickener, i-agent yokumisa, ifilimu yangaphambili, kunye ne-moisturizer kwi-creams, i-lotions, i-shampoos, kunye ne-gel.
I-7.Iipeyinti kunye neeNgqungquthela: Iphucula i-viscosity, i-sag resistance, kunye neempawu zokubunjwa kwefilimu yepeyinti esekelwe emanzini, i-adhesives, kunye neengubo.
Isiphelo:
(Hydroxypropyl) methyl cellulose, kunye noluhlu lwayo olwahlukeneyo lwezicelo kunye neempawu eziluncedo, sithako esibalulekileyo kwiimveliso ezininzi zemizi-mveliso kunye nezorhwebo. Indima yayo ekwandiseni intsebenzo, uzinzo, kunye nokusebenza koqulunqo olwahlukeneyo luyenza ibaluleke kakhulu kumacandelo amaninzi. Njengoko amashishini eqhubeka nokwenza izinto ezintsha, imfuno ye-HPMC kulindeleke ukuba iqhubeke, iqhubela phambili ukuqhubela phambili kwiindlela zayo zemveliso kunye nokusetyenziswa.