Iselulosi yeHydroxyethyl (HEC)imhlophe okanye ikhanyayo tyheli, ayinavumba, ingenabungozi kwifibrous okanye umgubo oqinileyo, olungiswa yi-etherification reaction yealkaline cellulose kunye ne-ethylene oxide (okanye i-chlorohydrin).I-Nonionic e-soluble cellulose ethers.Ukongeza kokuqina, ukumiswa, ukubopha, ukudada, ukwenza ifilimu, ukusabalalisa, ukugcina amanzi kunye nokubonelela nge-colloid yokukhusela, inezi mpawu zilandelayo:
1. I-HEC iyancibilika emanzini atshisayo okanye kumanzi abandayo, ukushisa okuphezulu okanye ukubilisa ngaphandle kwemvula, ukuze ibe noluhlu olubanzi lwe-solubility kunye neempawu ze-viscosity, kunye ne-gelation engeyona i-thermal;
2. Ayina-ionic kwaye inokuhlalisana kunye noluhlu olubanzi lwezinye iipolymers ezinyibilikayo zamanzi, i-surfactants, kunye neetyuwa.Yinto egqwesileyo ye-colloidal thickener yezisombululo eziphezulu ze-electrolyte;
3. Umthamo wokugcinwa kwamanzi uphindwe kabini kunalowo we-methyl cellulose, kwaye unolawulo olungcono lokuhamba.
4. Xa kuthelekiswa ne-methyl cellulose eyaziwayo kunye ne-hydroxypropyl methyl cellulose, ikhono lokusabalalisa i-HEC libi kakhulu, kodwa ikhono lokukhusela i-colloid linamandla.Ngenxa yeempawu zayo ezintle zokuqina, ukumisa, ukusabalalisa, ukuxutywa, ukubambelela, ukwenza ifilimu, ukukhusela umswakama kunye nokubonelela nge-colloid ekhuselayo, i-HEC isetyenziswe ngokubanzi ekuhloliseni ioli, ukugubungela, ukwakhiwa, amayeza, ukutya, i-textile, iphepha kunye ne-polymerization. kunye neminye imimandla.
Ukulumkela:
Ekubeni i-cellulose ye-hydroxyethyl ephathwayo i-powder okanye i-cellulose eqinile, kulula ukuyiphatha kunye nokuyinyibilika emanzini nje ukuba ezi zinto zilandelayo ziqwalaselwe.i
1. Ngaphambi nangemva kokongeza i-hydroxyethyl cellulose, kufuneka iqhutywe ngokuqhubekayo de isisombululo sibonakale ngokucacileyo kwaye sicace.i
2. Kufuneka ihlanjululwe ngokukhawuleza kwitanki yokuxuba, ungafaki ngokuthe ngqo inani elikhulu le-hydroxyethyl cellulose okanye i-hydroxyethyl cellulose eyenze izibonda kunye neebhola kwi-tank yokuxuba.i
3. Ubushushu bamanzi kunye nexabiso le-PH emanzini linobudlelwane obucacileyo bokuchithwa kwe-hydroxyethyl cellulose, ngoko ke ingqwalasela ekhethekileyo kufuneka ihlawulwe.i
4. Musa ukongeza ezinye izinto zealkaline kumxube phambi kokuba umgubo we-hydroxyethyl cellulose ufudunyezwe emanzini.Ukuphakamisa ixabiso le-PH emva kokufudumala kuya kunceda ukunyibilika.i
5. Kangangoko kunokwenzeka, yongeza i-anti-fungal agent ngokukhawuleza.i
6. Xa usebenzisa i-high-viscosity hydroxyethyl cellulose, ukuxinwa kotywala komama akufanele kube ngaphezu kwe-2.5-3%, ngaphandle koko utywala omama kuya kuba nzima ukuphatha.Iselulosi ye-hydroxyethyl yasemva kokunyanga ayilulanga ngokubanzi ukwenza amaqhuma okanye iingqukuva, kwaye ayiyi kubumba i-insoluble spherical colloids emva kokongeza amanzi.
Ixesha lokuposa: Dec-27-2022