I-Hydroxyethyl cellulose (HEC) yintsika emhlophe okanye ekhaphukhaphu etyheli, engenavumba, engeyotyhefu okanye eqinileyo eyimpuphu elungiswe yi-etherification ye-alkaline cellulose kunye ne-ethylene oxide (okanye i-chlorohydrin). I-Nonionic e-soluble cellulose ethers. Ukongeza kokuqina, ukumiswa, ukubopha, ukujikeleza, ukwenza ifilimu, ukusabalalisa, ukugcina amanzi kunye nokubonelela nge-colloids yokukhusela, inezi mpawu zilandelayo:
1. I-HEC iyancibilika kumanzi ashushu okanye abandayo, kwaye ayigqithisi kwiqondo lokushisa eliphezulu okanye ukubilisa, ukwenzela ukuba inoluhlu olubanzi lwe-solubility kunye neempawu ze-viscosity, kunye ne-gelation engeyiyo i-thermal;
2. I-non-ionic ngokwayo inokuhlalisana kunye nolunye uluhlu olubanzi lwezinye iipolymers ezinamanzi, i-surfactants kunye neetyuwa, kwaye i-colloidal thickener egqwesileyo equlethe izisombululo 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 i-colloid ekhuselayo inamandla amakhulu. Ngenxa yokuba i-HEC ineempawu ezintle zokuqina, ukumisa, ukusabalalisa, i-emulsifying, i-bonding, ifilimu-ifom, ukukhusela umswakama kunye nokubonelela nge-colloid ekhuselayo, isetyenziswe ngokubanzi ekuhlolisweni kweoli, ukugubungela, ukwakhiwa, amayeza kunye nokutya, 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 nokunyibilika emanzini ukuba nje le miba ilandelayo iphawulwe.
1. Ngaphambi nangemva kokongeza i-hydroxyethyl cellulose, kufuneka iqhutywe ngokuqhubekayo de isisombululo sibonakale ngokucacileyo kwaye sicace.
2. Kufuneka ihlulwe kwi-barrel yokuxuba ngokukhawuleza, kwaye ungafaki ngokuthe ngqo i-cellulose ye-hydroxyethyl eye yaqulunqwa ibe yiziqhuma kunye neebhola kwi-barrel yokuxuba.
3. Ubushushu bamanzi kunye nexabiso le-pH lamanzi linobudlelwane obucacileyo kunye nokuchithwa kwe-hydroxyethyl cellulose, ngoko ke ingqwalasela ekhethekileyo kufuneka ihlawulwe kuyo.
4. Ungaze wongeze into yealkaline kumxube phambi kokuba umgubo we-hydroxyethyl cellulose ufudunyezwe ngamanzi. Ukuphakamisa ixabiso le-PH emva kokufudumala kunceda ukutshatyalaliswa.
5. Njengoko kunokwenzeka, yongeza i-antifungal agents ngokukhawuleza.
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. I-cellulose ye-hydroxyethyl emva kokunyanga ayilulanga ngokubanzi ukwenza amaqhuma okanye i-spheres, kwaye ayiyi kubumba i-colloids spherical enganyibilikiyo emva kokufaka amanzi.
Ixesha lokuposa: Nov-15-2022