Umvelisi weselulosi yeHydroxyethyl

I-Hydroxyethyl cellulose (HEC) yipolymer engeyiyo i-ionic yamanzi enyibilikayo esetyenziswa kakhulu kumashishini ahlukeneyo afana namayeza, izithambiso, ukwakhiwa, kunye namalaphu. Njengenxalenye ephambili kwizicelo ezininzi, abavelisi be-HEC badlala indima ebalulekileyo ekuveliseni nasekuhanjisweni kwale mveliso eguquguqukayo.

I-HEC yi-cellulose ether derivative eveliswa ngokuguqulwa kweekhemikhali zeselulosi yendalo. Inkqubo yokuvelisa iqala ngokucocwa kweefiber ze-cellulose, ilandelwa yi-etherification nge-ethylene oxide kunye ne-mono-chloroacetic acid ukuvelisa imveliso yokugqibela ye-HEC. Umgangatho we-HEC uxhomekeke ekucocekeni kweselulosi kunye neqondo lokutshintshwa (DS) kwamaqela e-ether kwi-cellulose backbone.

Njengomvelisi ohamba phambili we-HEC, inkampani kufuneka ibe nezixhobo zanamhlanje kunye nezixhobo zokuqinisekisa imveliso ephezulu kakhulu. Inkqubo yokwenziwa kwe-HEC yibhalansi ethambileyo phakathi kwekhemistri kunye nobunjineli, efuna ulawulo oluchanekileyo lweemeko zokusabela ezifana nobushushu, uxinzelelo kunye nexesha lokuphendula. Umenzi we-HEC kufuneka abe nobuchule bobugcisa bokwandisa iimeko zokusabela ukuvelisa i-HEC kunye neempawu ezifunwayo kunye nokusebenza.

Iipropati ze-HEC zingenziwa ngokwezifiso ngokuhluka kwe-DS yamaqela e-ether kwi-backbone ye-cellulose. I-DS ephezulu iphumela kwi-HEC ene-hydrophilic eneempawu ezingcono zokugcina amanzi, ngelixa i-DS ephantsi ivelisa i-HEC ye-hydrophobic eneempawu ezingcono zokuqina. Umenzi we-HEC kufuneka abe namandla okuvelisa i-HEC kunye nemilinganiselo eyahlukeneyo ye-DS ukuhlangabezana neemfuno ezahlukeneyo zezicelo ezahlukeneyo.

Ukongeza ekuveliseni i-HEC kunye neempawu ezifunwayo, umenzi kufuneka kwakhona aqinisekise ukuba imveliso ihlangabezana nemigangatho yomgangatho ofunekayo. Ukucoceka kunye nokungaguquguquki kwe-HEC kubaluleke kakhulu ekusebenzeni kwayo kwizicelo ezahlukeneyo. Umenzi kufuneka abe nenkqubo yolawulo lomgangatho olomeleleyo endaweni yokubeka iliso umgangatho wemveliso kuwo onke amanqanaba enkqubo yokuvelisa. Umvelisi kufuneka enze uvavanyo olubanzi ukuqinisekisa ukuba imveliso iyahlangabezana neenkcukacha ezifunekayo kwisicelo ngasinye.

Abavelisi be-HEC kufuneka nabo bazibophelele kuzinzo kunye noxanduva lokusingqongileyo. Ukuveliswa kwe-HEC kubandakanya ukusetyenziswa kweekhemikhali kunye namandla, kwaye umenzi kufuneka abe nemilinganiselo yokunciphisa impembelelo kwindalo. Oku kuquka ukunciphisa inkunkuma, ukurisayikilisha imathiriyeli, kunye nokwandisa ukusetyenziswa kwamandla.

Ekugqibeleni, umenzi ogqwesileyo we-HEC kufuneka abonelele ngenkonzo yabathengi ebalaseleyo. Bamele babe neqela lenkonzo yabathengi eliphendulayo nelinolwazi elinokujongana nayo nayiphi na imibuzo okanye iinkxalabo ngokukhawuleza. Kufuneka kwakhona babonelele ngenkxaso yobugcisa kubathengi babo ukuqinisekisa ukuba imveliso isetyenziswa ngokuchanekileyo nangokufanelekileyo.

Ukuqukumbela, i-HEC yinxalenye ebalulekileyo kumashishini amaninzi, kwaye umenzi obalaseleyo we-HEC udlala indima ebalulekileyo ekuveliseni nasekuhanjisweni kwale mveliso. Bamele babe nezixhobo zanamhlanje kunye nezixhobo, ubuchule bobugcisa, kunye nokuzinikela kumgangatho kunye nokuzinza. Ngokubonelela ngemveliso ekumgangatho ophezulu kunye nenkonzo yabathengi egqwesileyo, abavelisi be-HEC banokunceda abathengi babo ukuba baphumelele kwizicelo zabo.