Hydroxypropyl methylcelculose (hpmc)Ngaba i-polymer ye-soller esenziwe ngamanzi iyadityaniswa ngokutshintsha iimolekyuli zeselfowuni. It combines the natural properties of cellulose with the modified functionality, has good water solubility, viscosity adjustment and film-forming properties, and is widely used in medicine, cosmetics, construction, food and other fields. Ingxoxo malunga nokuba sisinyibilikisi efuna ukwahlula izicelo zayo kunye neepropathi kwimimandla eyahlukeneyo.
Isakhiwo sekhemikhali kunye neePropathi zeHydroxypropyl Methylcelcelce
I-HPMC ilungiselelwe ngokwazisa amaqela amabini afanelekileyo, i-hydroxypropyl (-C2CH (oh) kunye ne-methyl (-C3), kwi-Glucose Molecule. Imolekyuli ye-selsulose i-Polysacchaacchaackacker ende eninzi edityaniswe ngeemolekyuli ezininzi ezinxulumene ne-β-1,4-Glycosidic yeqela, i-hydroxyl (oh) iphucukile ngamaqela ahlukeneyo.
Ngexesha lenkqubo yeSynthesi, iMethyration yenza iimolekyuli ezise selsulofic, ngelixa i-hydroxyplopy iphucula ukubenzela amanzi. Ngezi zinto zimbini, i-HPMC iba yindawo eguqulweyo yePolymer enokuchithwa emanzini.
Ukunyibilikisa kunye nomsebenzi we-HPMC
I-HPMC inesifo esihle emanzini, ngakumbi emanzini ashushu. Njengoko iqondo lobushushu liyaphuma, inqanaba lokutshabalalisa kunye nokugula kuya kunyuka. Nangona kunjalo, i-HPMC ngokwayo ayisiyo "isolwvent" eqhelekileyo, kodwa isetyenziswa njengesinyibilikisi okanye i-thickener. Ngolwelo, inokwenza isisombululo se-colloidal ngokusebenzisana neemolekyuli zamanzi, ngaloo ndlela ukuhlengahlengisa i-viscofity kunye ne-ratheology yesisombululo.
Nangona i-HPMC inokuchithwa emanzini, ayinazo iipropathi ze "smolvent" kwingqondo yesiko. Ii-sollonts zihlala zihlala zinyibilikisi ezinye izinto, ezinje ngamanzi, i-alcohols, amaKetones okanye ezinye izinyibilikisi eziphilayo. Ukuchithwa kwe-HPMC ngokwayo
IZIXHOBO ZE-HPMC
Intsimi yezonyango: I-HPMC ihlala isetyenziswa njengeziyobisi, ngakumbi kulungiselelo lweefomu zomnxeba eziqinileyo (ezinje ngeetafile kunye neetafile), ikakhulu isetyenziselwa ukuthambisa, ukubekwa, ukwenza eminye imisebenzi. Ingaphucula ukufunyanwa kweziyobisi kwaye ikwasetyenziswa kukhululo oluzinzileyo ukunceda ukulawula ukukhutshwa kweziyobisi.
Intsimi ye-Cosmetic: I-HPMC isetyenziswa ngokubanzi kwiimveliso zonyango, i-shampoo, imaski ye-mask, i-cream kunye nezinye i-cosmetics njengearhente ye-gickener, i-stabilizer kunye nearhente yefilimu. Indima yayo kwizikona ikakhulu kukwandisa uzinzo kunye nokuhlengahlengiswa kwemveliso kwaye kukwenze ukhululeke ngakumbi.
Intsimi yokwakha: Kumzi-mveliso wokwakha, i-HPMC isetyenziswa njenge-thi checkener kunye nokusasazeka kwesamente, udaka olomileyo, ipeyinti kunye nezinye iimveliso. Inokonyusa i-viscofity yepeyinti, ukuphucula ukusebenza kokwakha kwaye kwandise ixesha lokwakha.
Intsimi yokutya: I-HPMC isetyenziswa njengesongezo sokutya, ikakhulu isetyenziselwa ukuqina, ukuthandwa kunye nokuphucula incasa, kwaye ihlala ifumaneka ngokutya okuphantsi, iipipi kunye ne-ice cream. Ukongeza, inokusetyenziselwa ukuphucula ukuthungwa, ukungcamla nokutya okutsha kokutya.
Isicelo njengesinyibilikisi
Kwiinkqubo ezithile zokulungiselela ezithile, i-HPMC inokusetyenziswa njengenxalenye ye-auxilive yesolvent. Umzekelo, kumzi-mveliso wamachiza, i-sloubing ye-HPMC iyenza ukuba isetyenziswe njengezilungiselelo zechiza, ngakumbi amalungiselelo olwelo, apho anokukunceda ukuchitha iziyobisi kwaye enze isisombululo esifanayo.
Kwezinye iingubo ezithile ezisekwe emanzini,I-HPMCIngasetyenziswa njenge-arhente yokuncedisa kwi-Solvent yokuphucula iipropathi ze-rihloogical kunye nokusebenza komsebenzi, nangona esona sisombululo siphambili kwi-COOGS sihlala sinamanzi okanye isinyibilikisi esiqhelekileyo.
Nangona i-HPMC inokuchithwa emanzini kwizicelo ezininzi ukwenza i-colloid okanye isisombululo kwaye inyuse i-viscofity kunye nolwelo lwesisombululo, ngokwayo ayithathwa njengesolw kwingqondo yesiko. Endaweni yoko, iqhele ukusetyenziswa ngakumbi njengesixhobo esisebenzayo esifana ne-gickener, iarhente yegicker, kunye nearhente yokwenza ifilimu. Inoluhlu olubanzi lwezicelo kwimimandla eyahlukeneyo, ngakumbi kwindawo yamayeza, enokutya, ukutya, kunye namashishini okwakha. Ke ngoko, xa uqonda indima ye-HPMC, kufuneka ithathwe njenge-polyney ye-polyney ye-scobren engagungqiyo kunokuba inyibilike ilula.
Ixesha lasemva kwexesha: Mar-21 ukuya ku-525