Nts'etsopele ea Rheological Thickener

Nts'etsopele ea li-heological thickeners, ho kenyeletsoa le tse thehiloeng ho cellulose ethers joalo ka carboxymethyl cellulose (CMC), e kenyelletsa motsoako oa ho utloisisa thepa e lakatsehang ea rheological le ho hlophisa sebopeho sa limolek'hule tsa polymer ho fihlela thepa eo. Mona ke kakaretso ea ts'ebetso ea ntlafatso:

1. Litlhoko tsa Rheological: Mohato oa pele oa ho hlahisa rheological thickener ke ho hlalosa boemo bo lakatsehang ba rheological bakeng sa ts'ebeliso e reriloeng. Sena se kenyelletsa liparamente tse kang viscosity, boits'oaro ba ho kuta, khatello ea maikutlo, le thixotropy. Lisebelisoa tse fapaneng li ka hloka thepa e fapaneng ea rheological e ipapisitseng le lintlha tse kang maemo a ts'ebetso, mokhoa oa ts'ebeliso, le litlhoko tsa ts'ebetso ea ho qetela.
2. Khetho ea Polymer: Hang ha litlhoko tsa rheological li hlalositsoe, li-polymer tse loketseng li khethoa ho ipapisitse le thepa ea tsona ea tlhaho ea rheological le ho lumellana le sebopeho. Li-cellulose ethers joalo ka CMC hangata li khethoa bakeng sa ho tenya, ho tsitsisa le thepa ea ho boloka metsi. Boima ba limolek'hule, tekanyo ea ho fetola, le mokhoa oa ho fetola oa polymer o ka fetoloa ho lumellana le boitšoaro ba eona ba rheological.
3. Synthesis le Phetoho: Ho ipapisitse le thepa e lakatsehang, polymer e ka 'na ea etsoa kapa ea fetoloa ho fihlela sebopeho se lakatsehang sa limolek'hule. Mohlala, CMC e ka etsoa ka ho etsa selulose ka chloroacetic acid tlasa maemo a alkaline. The degree of substitution (DS), e khethollang palo ea lihlopha tsa carboxymethyl ho yuniti ea tsoekere, e ka laoloa nakong ea synthesis ho lokisa ho qhibiliha ha polymer, viscosity le katleho e kholo.
4. Ntlafatso ea Tlhahiso: The rheological thickener e ntan'o kenngoa ka har'a sebopeho sebakeng se loketseng ho finyella viscosity e lakatsehang le boitšoaro ba rheological. Ntlafatso ea sebopeho e kanna ea kenyelletsa ho lokisa lintho tse kang polymer concentration, pH, letsoai, mocheso, le sekhahla sa ho kuta ho matlafatsa ts'ebetso e teteaneng le botsitso.
5. Teko ea Ts'ebetso: Sehlahisoa se entsoeng se behiloe tekong ea ts'ebetso ho lekola thepa ea sona ea rheological tlasa maemo a fapaneng a amanang le ts'ebeliso e reriloeng. Sena se ka kenyelletsa litekanyo tsa viscosity, li-profiles tsa shear viscosity, khatello ea maikutlo, thixotropy, le botsitso ka nako. Teko ea ts'ebetso e thusa ho netefatsa hore rheological thickener e fihlela litlhoko tse boletsoeng mme e sebetsa ka ts'epo ka ts'ebeliso e sebetsang.
6. Keketseho le Tlhahiso: Hang ha tlhahiso e ntlafalitsoe 'me ts'ebetso e netefalitsoe, ts'ebetso ea tlhahiso e ea eketseha bakeng sa tlhahiso ea khoebo. Lintlha tse joalo ka ho tsitsa ha batch-to-batch, botsitso ba lishelefo, le ts'ebeliso e ntle ea litšenyehelo li nahanoa nakong ea ntlafatso ho netefatsa boleng bo tsitsitseng le ts'ebetso ea moruo ea sehlahisoa.
7. Ntlafatso e Tsoelang Pele: Tsoelo-pele ea li-thickeners tsa rheological ke ts'ebetso e tsoelang pele e ka kenyelletsang ntlafatso e tsoelang pele e thehiloeng maikutlong a tsoang ho basebelisi ba ho qetela, tsoelo-pele ea saense ea polymer, le liphetoho litlhoko tsa 'maraka. Liqapi li ka ntlafatsoa, ​​​​'me theknoloji e ncha kapa litlatsetso li ka kenyelletsoa ho ntlafatsa ts'ebetso, ts'ebetso e tsitsitseng, le ho baballa litšenyehelo ha nako e ntse e ea.

Ka kakaretso, nts'etsopele ea li-thickeners tsa rheological e kenyelletsa mokhoa o hlophisitsoeng o kopanyang saense ea polymer, botsebi ba tlhahiso, le tlhahlobo ea ts'ebetso ho theha lihlahisoa tse fihlelang litlhoko tse ikhethang tsa rheological tsa lits'ebetso tse fapaneng.