I-cellulose ethers isetyenziswa ngokubanzi kwiimveliso zesamente ngenxa yeempawu zabo ezizodwa kunye nokukwazi ukuphucula imiba eyahlukeneyo yokusebenza.Nangona kunjalo, ukuqinisekisa iziphumo ezichanekileyo, kubalulekile ukulawula ngokufanelekileyo ukusebenza kwe-cellulose ether kwiimveliso zesamente.Eli phepha liphonononga amaqhinga aphambili kunye nobuchule bokufikelela kulawulo oluchanekileyo lweepropathi ze-cellulose ether, ukudweba ingqiqo kwiincwadi ezinxulumene nophando.
Ukuqonda indima yeCellulose Ether kwiiMveliso zeSamente:
I-cellulose ethers, njenge-methyl cellulose (MC), i-hydroxyethyl cellulose (HEC), i-hydroxypropyl methylcellulose (HPMC), kunye nabanye, badlala indima ebalulekileyo kwiimveliso zesamente.Basebenza njengama-agent okugcina amanzi, i-rheological modifiers, izixhasi zokubambelela, kunye nokuphucula ukusebenza, ukuqina, kunye nezinye iimpawu ezibalulekileyo.Ukuqonda iindima ezithile kunye neendlela ze-cellulose ether kwiinkqubo zesamente zibalulekile kulawulo lokusebenza olusebenzayo.
Ukukhethwa kweentlobo ezifanelekileyo ze-cellulose ether:
Ukhetho oluchanekileyo lohlobo lwe-cellulose ether lubalulekile ekufezekiseni iimpawu ezinqwenelekayo kwiimveliso zesamente.Uhlobo ngalunye lunikeza iipropati kunye nemisebenzi ekhethekileyo.Ngokomzekelo, i-MC iyaziwa ngokugcina amanzi kunye nokuqina kwamandla, ngelixa i-HEC inikeza ulawulo oluphezulu lwe-rheological.I-HPMC idibanisa izibonelelo ezininzi, kubandakanya ukunamathela okuphuculweyo, ukusebenza kakuhle, kunye nokugcinwa kwamanzi.Zivavanye ngononophelo iimfuno ezithile zemveliso yakho yesamente kwaye ukhethe uhlobo lwe-cellulose ether oluhambelana kakuhle nezo mfuno.
Ukulawula idosi kunye nobungakanani beNcam:
Ukulawula umthamo kunye nobukhulu be-particle ye-cellulose ether kubalulekile ukufezekisa iipropati ezifunwayo kwiimveliso zesamente.Ubungakanani be-particle nabo budlala indima kwi-dispersibility kunye nokusebenza ngokubanzi.Idosi efanelekileyo kunye nobungakanani bamasuntswana bunokumiselwa ngamalingo ovavanyo kunye nokuqwalasela iimfuno ezithile zesicelo.
Impembelelo yokwakheka kwesamente kunye nemixube:
Ukubunjwa kwe-samente kunye nobukho bezinye izinto ezixutywayo kunokuchaphazela iipropati ze-cellulose ether. yezinye ii-admixtures ezifana ne-superplasticizers okanye i-air-entrainers zinokusebenzisana ne-cellulose ethers kwaye zichaphazela ukusebenza kwazo.
Ulawulo lomgangatho kunye noVavanyo:
Ukuphumeza imilinganiselo engqongqo yokulawula umgangatho kunye nokuqhuba iimvavanyo eziqhelekileyo kubalulekile ukuqinisekisa ukusebenza okuhambelanayo kwe-cellulose ether kwiimveliso zesamente..Ulawulo lomgangatho kufuneka lubandakanye ukuvavanywa kweeparamitha eziphambili ezifana ne-viscosity, ukugcinwa kwamanzi, ixesha lokuseta, ukunamathela, kunye neempawu zomatshini..Rhoqo. ukuvavanywa kunye nokubeka iliso kwezi parameters kuyo yonke imveliso kuya kunceda ukuchonga nakuphi na ukutenxa kunye nokwenza uhlengahlengiso olusexesheni ukugcina umsebenzi ofunekayo.
Intsebenziswano nabaBoneleli kunye neNkxaso yobuGcisa:
Ukusebenzisana nabanikezeli be-cellulose ether kunye nokufuna inkxaso yobugcisa kunokubonelela ngengqiqo ebalulekileyo kunye noncedo ekulawuleni ngokufanelekileyo ukusebenza kwabo kwimveliso yesamente. izikhokelo zesicelo, kunye noncedo ekulungiseni i-ether cellulose ukuhlangabezana neemfuno ezithile.
Ukulawula ngokufanelekileyo ukusebenza kwe-cellulose ethers kwiimveliso zesamente ngumsebenzi ohlukeneyo ofuna ukuqonda ngokubanzi indima yabo, ukukhethwa kweentlobo ezifanelekileyo, ukulawulwa kwemilinganiselo echanekileyo, ukuqwalaselwa kwe-samente ukubunjwa kunye ne-admixture, ukulawulwa komgangatho ongqongqo, kunye nentsebenziswano kunye nabanikezeli. .Ngokuphumeza ezi zicwangciso kunye nobuchule, abavelisi banokuqinisekisa ukusebenza okuhambelanayo kunye nokulungiswa kwe-cellulose ethers, okukhokelela ekuphuculweni komgangatho wemveliso yesamente, ukuqina okuphuculweyo kunye nokwaneliseka jikelele kwabathengi.
