Imibuzo ofanele uyazi malunga ne-HPMC

I-HPMC okanye i-hydroxypropyl methylcellulose yikhompawundi edla ngokusetyenziswa kumashishini ahlukeneyo kuquka amayeza, izinto zokuthambisa kunye nokwakha. Nantsi eminye imibuzo edla ngokubuzwa malunga ne-HPMC:

Yintoni i-hypromellose?

I-HPMC yipolima yokwenziwa eyenziwe nge-cellulose, into yendalo efumaneka kwizityalo. Yenziwe ngokuguqulwa kweekhemikhali i-cellulose kunye namaqela e-methyl kunye ne-hydroxypropyl ukwenza i-powder e-soluble yamanzi.

Isetyenziselwa ntoni iHPMC?

I-HPMC inosetyenziso oluninzi kumashishini ahlukeneyo. Kumashishini amayeza, isetyenziswa njenge-binder, i-thickener kunye ne-emulsifier kwiipilisi, ii-capsules kunye ne-ointments. Kwishishini lokuthambisa, lisetyenziswa njenge-thickener, emulsifier kunye ne-stabilizer kwi-creams, i-lotions kunye ne-make-up. Kwishishini lokwakha, lisetyenziswa njenge-binder, i-thickener kunye ne-arhente yokugcina amanzi kwi-samente kunye nodaka.

Ngaba ii-HPMCs zikhuselekile?

I-HPMC ngokuqhelekileyo ithathwa njengekhuselekile kwaye ayinayo ityhefu. Isetyenziswa ngokubanzi kumashishini amayeza kunye ne-cosmetic apho ukhuseleko kunye nokucoceka kubaluleke kakhulu. Nangona kunjalo, njengayo nayiphi na imichiza, kubalulekile ukuphatha i-HPMC ngononophelo kwaye ulandele amanyathelo okhuseleko afanelekileyo.

Ngaba i-HPMC iyabola?

I-HPMC i-biodegradable kwaye inokophulwa ngeenkqubo zendalo ekuhambeni kwexesha. Nangona kunjalo, izinga lokubola kwe-biodegradation lixhomekeke kwizinto ezahlukeneyo ezifana nobushushu, ukufuma kunye nobukho be-microorganisms.

Ngaba i-HPMC ingasetyenziswa ekutyeni?

I-HPMC ayivunywanga ukuba isetyenziswe ekutyeni kwamanye amazwe, kuquka i-United States. Nangona kunjalo, yamkelwe njengesongezo sokutya kwamanye amazwe anjengeJapan neTshayina. Isetyenziswa njenge-thickener kunye ne-stabilizer kokunye ukutya, okufana ne-ayisikrimu kunye nezinto ezibhakiweyo.

Yenziwa njani i-HPMC?

I-HPMC yenziwa ngokuguqula iikhemikhali iselulosi, into yendalo efumaneka kwizityalo. I-Cellulose iphathwa kuqala ngesisombululo se-alkaline ukususa ukungcola kwaye yenze ukuba isebenze ngakumbi. Emva koko isabela ngomxube we-methyl chloride kunye nepropylene oxide ukwenza i-HPMC.

Ngawaphi amabakala ahlukeneyo e-HPMC?

Kukho amabakala amaninzi e-HPMC, ngalinye lineepropati ezahlukeneyo kunye neepropati. Amabanga asekelwe kwizinto ezifana nobunzima bemolekyuli, iqondo lokutshintshwa, kunye nobushushu be-gelation. Amabanga ahlukeneyo e-HPMC asetyenziswa kwizicelo ezahlukeneyo kumashishini ahlukeneyo.

Ngaba i-HPMC ingaxutywa nezinye iikhemikhali?

I-HPMC inokudityaniswa nezinye iikhemikhali ukuvelisa iipropati ezahlukeneyo kunye neempawu. Ihlala idibaniswa kunye nezinye iipolymers ezifana ne-polyvinylpyrrolidone (PVP) kunye ne-polyethylene glycol (PEG) ukuphucula iimpawu zayo zokubopha kunye nokuqina.

Igcinwa njani iHPMC?

I-HPMC kufuneka igcinwe kwindawo epholileyo, eyomileyo kude nokufuma kunye nelanga elithe ngqo. Kufuneka igcinwe kwisingxobo esingangeni moya ukuthintela ukosuleleka.

Ziziphi iingenelo zokusebenzisa i-HPMC?

Izinto ezilungileyo zokusebenzisa i-HPMC ziquka ukuguquguquka kwayo, ukunyibilika kwamanzi, kunye nokubola. Kananjalo ayinayo ityhefu, izinzile, kwaye iyahambelana nezinye iikhemikhali ezininzi. Ngokutshintsha iqondo lokutshintshwa kunye nobunzima be-molecular, iipropati zayo zinokuguqulwa ngokulula, zenze ukuba zilungele izicelo ezahlukeneyo.