Nguwuphi umahluko phakathi kwe-hydroxypropyl methylcelceluplose ne hydroxyythy sellie?

I-HydroxypropyTolmethylcelcelcelcelcelcelcelcelcel Nangona benokufana, kukho nemahluko omkhulu, kubandakanya ubume bekhemikhali, iipropathi zomzimba kunye nokusetyenziswa.

Isakhiwo sekhemikhali

Umahluko ophambili phakathi kwe-HPMC kunye ne-hec yindlela yabo yekhemikhali. I-HPMC yi-polymer yokwenziwa eyenziwe ngokusabela ngokuphendula nge-seluplose kunye ne-propylene oxide ne methyl chloride. Inkqubo ivelisa i-polymers ebini i-hydrophilic kunye ne-lipophilic, ibenza izithako eziqhelekileyo kwiimveliso ezininzi zemizi mveliso, kubandakanya ukhathalelo lobuqu kunye namayeza.

I-hec, kwelinye icala, i-biopolymer ethathwe kwi-seluplose. Iveliswa yindlela yokusabela kwi-sellylene oxide, eyenza amaqela e-hydroxyythy kwimolekyuli eselseyu. Oku kuqunjelwa i-polymer enyibilikayo yamanzi kunye neepropathi ezigqwesileyo kunye nezahlulo, zenza ilungele uluhlu olubanzi lwezicelo.

iipropathi zomzimba

I-HPMC kunye ne-HEC inepropathi eyahlukileyo eyahlukeneyo ngenxa yezakhiwo zabo ezahlukeneyo zekhemikhali. Umzekelo, i-HPMC i-hydrophobic ngakumbi kune-hec, oko kuthetha ukuba kunyibilikiswe amanzi. Ke ngoko, i-HPMC ihlala isetyenziswa njenge-stabilizer kunye ne-emulsifier kwiimveliso ezisekwe kwi-oyile ezinjengeekhrim kunye neziqwengana. I-hec, kwelinye icala, inyibilikisiwe emanzini kwaye ihlala isetyenziswa njengearhente ye-tickener kunye neqela legxala kwizisombululo ezikhulu.

Enye impahla emzimbeni ye-HPMC kunye ne-hec luhlobo lwabo. I-hec ine-viscovity ephezulu kune-HPMC, oko kuthetha ukuba isebenza ngakumbi kwizisombululo ezikhululekileyo kunye ne-Gels. Le ndawo yenza i-hec ilungele ukusetyenziswa kwiipeyinti kunye neengubo, imibhedu, kunye nezinye iimveliso ezifuna ukufunyanwa kobunzima.

Iindawo zesicelo

I-HPMC kunye ne-hec zisetyenziswa ngokubanzi kumashishini ahlukeneyo. I-HPMC iqhele ukusetyenziswa kumzi-mveliso wamachiza njengoko iincwadana, iingubo, kunye neenkqubo zokuhambisa iziyobisi. Ikwasetyenziswa njenge-thi cokener kunye ne-emulsifier kwiimveliso zobuqu ezifana ne-shampoos, i-soaps kunye ne cosmetics. I-HPMC ikwasetyenziswa njengesongezo sokutya nakwimveliso yeemveliso zamaphepha.

I-hec, kwelinye icala, isetyenziswa njenge-tickener kunye nearhente yegeli kwimizi-mveliso eyahlukeneyo. Kwimizi-mveliso yepeyinti kunye nempahla ethengiswayo, i-HEC isetyenziswa njenge-thi checker, i-Rheoology Modifiers kunye noncedo lokumiswa. Ikwasetyenziswa njengearhente yokugcina amanzi kwishishini lokwakha nakwimveliso yabadlali, amabali kunye ne-ceramics.

I-HPMC kunye ne-HEC zizinto ezimbini zeselfowuni ezineendlela ezahlukeneyo zemichiza, iipropathi zomzimba kunye nokusetyenziswa. I-HPMC i-hydrophobic kwaye isetyenziswa kwimizi-mveliso eyahlukeneyo, ngelixa i-hec inganyikithi ngakumbi kwaye ilungele ukuqina kwezisombululo ze-ackeeth kunye ne-Gels. Kubalulekile ukuba uqonde umahluko phakathi kwezi phunga zimbini seselselose xa ukhetha isithako esifanelekileyo kwisicelo esithile.