Focus on Cellulose ethers

Uyinyibilikisa njani i-hydroxyethyl cellulose emanzini?

I-Hydroxyethyl cellulose (HEC) yipolymer enyibilikayo emanzini edla ngokusetyenziswa kwizicelo ezahlukeneyo ezifana nokuncamathelisa, iingubo, kunye neemveliso zokhathalelo lomntu. Ukuchithwa kwe-HEC emanzini yinkqubo elula enokufezekiswa ngokusebenzisa la manyathelo alandelayo:

Khetha ibakala elifanelekileyo le-HEC: I-HEC ifumaneka kumabakala ahlukeneyo anobunzima beemolekyuli ezahlukeneyo kunye needigri zokutshintsha. Ukukhethwa kwebakala kuya kuxhomekeka kwisicelo esithile kunye neempawu ezifunwayo zemveliso yokugqibela.

Lungiselela amanzi: Inyathelo lokuqala kukulungisa amanzi ngokulinganisa umthamo ofunekayo wamanzi kwaye uwafudumeze kubushushu obuphakathi kwe-70-80 ° C. Ukufudumeza amanzi kuya kunceda ukukhawuleza inkqubo yokuchithwa kunye nokuqinisekisa ukuba i-HEC igcwele ngokupheleleyo.

Yongeza i-HEC emanzini: Emva kokuba amanzi efikelele kwiqondo lokushisa elifunekayo, ngokukhawuleza yongeza i-HEC emanzini ngelixa uvuselela ngokuqhubekayo. Kubalulekile ukongeza i-HEC ngokucothayo kwaye ngokuthe ngcembe ukuphepha ukugoba kwaye uqinisekise ukuba ihlakazwe ngokupheleleyo emanzini.

Qhubeka uvuselela: Emva kokongeza i-HEC emanzini, qhubeka udibanisa umxube malunga nemizuzu engama-30. Oku kuya kunceda ukuqinisekisa ukuba i-HEC inyibilikiswe ngokupheleleyo kwaye ifakwe emanzini.

Vumela umxube ukupholisa: Emva kokuba i-HEC ichithwe ngokupheleleyo, vumela umxube ukuba upholise kwiqondo lokushisa. Njengoko umxube uphola, uya kuqina kwaye ufikelele kwi-viscosity yawo yokugqibela.

Lungisa i-pH kunye ne-viscosity: Ngokuxhomekeke kwisicelo esithile, kunokuba yimfuneko ukulungisa i-pH kunye ne-viscosity yesisombululo se-HEC. Oku kunokwenziwa ngokongeza i-asidi okanye isiseko sokulungelelanisa i-pH kwaye ngokongeza amanzi okanye i-HEC eyongezelelweyo ukulungisa i-viscosity.

ukuchithwa kwe-HEC emanzini yinkqubo elula enokufezwa ngamanyathelo ambalwa asisiseko. Ngokukhetha ibakala elifanelekileyo le-HEC, ukulungiselela amanzi ngokufanelekileyo, kunye nokuvuselela umxube ngokuqhubekayo, kunokwenzeka ukuba ufumane isisombululo se-HEC esichithwe ngokupheleleyo esinokusetyenziswa kwizicelo ezahlukeneyo.


Ixesha lokuposa: Mar-08-2023
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