I-Hydroxyethylcellulose vs i-carbomer

IHydroxyethylcellulose (HEC) kunye ne-carbomer zimbini iipolima ezisetyenziswa ngokuqhelekileyo kwishishini lokhathalelo lomntu. Zinezakhiwo ezahlukeneyo zeekhemikhali kunye neempawu, ezenza ukuba zilungele izicelo ezahlukeneyo.

I-HEC yindalo, i-polymer e-soluble yamanzi ephuma kwi-cellulose. Iqhele ukusetyenziswa njenge-thickener, emulsifier, kunye ne-stabilizer kwiimveliso ezahlukeneyo zokhathalelo lomntu ezifana neshampu, i-conditioners, kunye nokuhlamba umzimba. I-HEC iyaziwa ngokuhambelana kwayo okuphezulu kunye nezinye izithako kunye nokukwazi kwayo ukubonelela ngokucokisekileyo kunye ne-creamy texture ekuqulunqweni. Ikwaziwa nangokucaca kwayo kakuhle kunye netyhefu ephantsi.

ICarbomer, kwelinye icala, i-synthetic, i-polymer yobunzima bemolekyuli ephezulu esetyenziswa ngokuqhelekileyo njenge-arhente yokuqina kwiimveliso ezahlukeneyo zokhathalelo lomntu ezifana neegels kunye nelotion. Isebenza kakuhle ekuqinisweni nasekuzinziseni ukwakheka, kwaye inokubonelela ngeqondo eliphezulu lokucaca kunye nokumiswa kwimveliso egqityiweyo. ICarbomer yaziwa ngolawulo lwayo oluhle kakhulu lwe-viscosity kunye nokukwazi ukwandisa ukusasazeka kweemveliso.

Olunye ulwahlulo oluphambili phakathi kwe-HEC kunye ne-carbomer kukunyibilika kwamanzi. I-HEC i-soluble kakhulu emanzini, ngelixa i-carbomer idinga ukungathathi hlangothi kunye ne-agent ye-alkaline efana ne-triethanolamine okanye i-sodium hydroxide ukuze ibe yi-hydrated ngokupheleleyo kwaye igxininiswe. Ukongezelela, i-HEC iyaziwa ngokuba yi-sensitivity ephantsi kwi-pH kunye nokutshintsha kweqondo lokushisa, ngelixa i-carbomer inokuchaphazeleka ngotshintsho kwi-pH kunye nokushisa.

Isishwankathelo, i-HEC kunye ne-carbomer zimbini iintlobo ezahlukeneyo zeepolymers ezinezakhiwo ezizodwa kunye nokusetyenziswa. I-HEC yipolymer yendalo, enyibilikayo emanzini esetyenziswa ngokuqhelekileyo njenge-thickener kunye ne-emulsifier, ngelixa i-carbomer i-synthetic, i-polymer yobunzima bemolekyuli ephezulu kakhulu esebenza kakuhle ekuxubeni nasekuzinziseni ukwakheka. Ukukhethwa kwepolymer kuxhomekeke kwiimfuno ezithile kunye neempawu zokuqulunqwa.