Ixabiso eliphantsi hec hydroxyethyl cellulose

IHydroxyethyl cellulose (HEC) yipolymer eguquguqukayo esetyenziswa ngokubanzi kumashishini ahlukeneyo, kubandakanya iingubo, izinto zokuncamathelisa, iimveliso zokhathalelo lomntu, kunye namayeza. Njengoko imfuno ye-HEC ikhula kula mashishini, abavelisi bafuna iindlela zokubonelela ngeendlela eziphantsi kwexabiso eliphantsi ukuhlangabezana neemfuno zemarike. Kweli nqaku, siza kuxubusha ezinye zeendlela abavelisi abanokubonelela ngazo ngeemveliso ze-HEC eziphantsi.

Enye yeendlela zokubonelela nge-HEC yamaxabiso aphantsi kukuvelisa kusetyenziswa imathiriyeli ekrwada engabizi kakhulu. I-HEC ithathwe kwi-cellulose, edla ngokufunyanwa kwi-pulp yomthi, iilitha zomqhaphu, okanye eminye imithombo yezityalo. Nangona kunjalo, ixabiso le-cellulose lingahluka ngokuxhomekeke kumthombo kunye nomgangatho. Abavelisi banokusebenzisa i-cellulose ephantsi okanye esetyenzisiweyo ukuvelisa i-HEC, enokunceda ukunciphisa iindleko zokuvelisa.

Enye indlela yokubonelela ngexabiso eliphantsi le-HEC kukwandisa inkqubo yokuvelisa. I-HEC iveliswa ngokuqhelekileyo ngokuphendula i-cellulose nge-ethylene oxide, ilandelwa yi-etherification nge-monochloroacetic acid okanye ezinye iikhemikhali. Inkqubo yemveliso inokulungiswa ngokusebenzisa iimeko zokusabela ezisebenza ngakumbi, ezinje ngamaqondo obushushu aphezulu okanye uxinzelelo, okanye ngokusebenzisa izinto ezahlukeneyo zokusabela. Ukuphucula inkqubo yokuvelisa kunokunciphisa iindleko zemveliso kwaye kukhokelela kwiimveliso ze-HEC eziphantsi.

Indlela yesithathu yokubonelela nge-HEC yexabiso eliphantsi kukugxila ekuveliseni i-HEC ngamabakala aphantsi e-viscosity. I-HEC ifumaneka kumabakala ahlukeneyo e-viscosity, ukusuka phantsi ukuya phezulu. Amanqanaba aphezulu e-viscosity aneempawu ezingcono zokujiya kwaye zibiza kakhulu. Ngokuvelisa amanqanaba asezantsi e-viscosity e-HEC, abavelisi banokunikezela ngeemveliso zamaxabiso aphantsi asahlangabezana neemfuno zemarike.

Ekugqibeleni, abavelisi banokunikezela ngexabiso eliphantsi le-HEC ngokugxila kwiindlela zokuvelisa ezingabizi kakhulu. Ngokomzekelo, abanye abavelisi baye bavelisa iinkqubo ezintsha zokuvelisa ezisebenzisa amandla amancinci okanye iikhemikhali ezimbalwa, ezikhokelela kwiindleko eziphantsi zokuvelisa. Abanye abavelisi banokugxila ekwandiseni ikhonkco labo lokubonelela okanye inethiwekhi yokuhambisa ukunciphisa iindleko zokuhamba kunye nokugcina.

Xa ukhangela iimveliso ze-HEC zamaxabiso aphantsi, abathengi kufuneka baqaphele ukurhweba okunokubakho komgangatho. Iimveliso ze-HEC eziphantsi kwexabiso eliphantsi zinokuba nokuhlambuluka okuphantsi, i-viscosity ephantsi, okanye ezinye izinto ezisemgangathweni ezinokuchaphazela ukusebenza kwazo kwizicelo ezahlukeneyo. Abathengi kwakhona kufuneka balumke kwiimveliso ezinexabiso eliphantsi kakhulu kunomndilili wemarike, njengoko zinokuba kumgangatho ophantsi okanye ezivela kwimithombo engathembekanga.

Isishwankathelo, abavelisi banokunikezela ngeemveliso ze-HEC eziphantsi kwexabiso eliphantsi ngokusebenzisa izinto ezingabizi kakhulu, ukuphucula inkqubo yokuvelisa, kugxininise kumabanga asezantsi e-viscosity, kunye nokusebenzisa iindlela zokuvelisa iindleko ezisebenzayo. Nangona kunjalo, abathengi kufuneka baqaphele urhwebo olunokubakho olusemgangathweni kwaye kufuneka bakhethe iimveliso ezihlangabezana neemfuno zabo kunye neemfuno zomgangatho.