Hydroxyethyl Cellulose (HEC) ke motsoako o tloaelehileng oa polymer o qhibilihang ka metsing o sebelisoang haholo penteng ea latex. Ha e phethe karolo ea bohlokoa feela ho ntlafatsa ts'ebetso ea sehlahisoa, empa hape e ntlafatsa haholo boiphihlelo ba kopo le boleng ba filimi ea ho qetela ea ho roala.
Thepa ea Hydroxyethyl Cellulose
Hydroxyethyl cellulose ke nonionic cellulose ether e hlahisoang ho tsoa selulose ea tlhaho ka phetoho ea etherification. E na le thepa e ntle ea ho tenya, ho emisa, ho qhalakanya le emulsifying. Lintho tsena li nolofalletsa HEC ho etsa li-colloid tse tsitsitseng ka tharollo ea metsi a nang le viscosity e phahameng le thepa e ntle ea rheological. Ho feta moo, tharollo ea metsi ea HEC e na le pepenene e ntle le bokhoni bo sebetsang ba ho boloka metsi. Litšobotsi tsena li etsa hore e sebelisoe haholo lipenteng tsa latex.
Karolo ea pente ea latex
motenya
E le e 'ngoe ea li-thickeners tse ka sehloohong tsa pente ea latex, mosebetsi oa bohlokoa ka ho fetisisa oa HEC ke ho eketsa viscosity ea mokelikeli oa pente. Viscosity e nepahetseng e ke ke ea ntlafatsa feela botsitso ba polokelo ea pente ea latex, empa hape e thibela pula le delamination. Ntle le moo, viscosity e nepahetseng e thusa ho laola ho theoha le ho netefatsa boemo bo botle le tšireletso nakong ea kopo, ka hona ho fumana filimi e koahelang e tšoanang.
ntlafatso ea botsitso
HEC e ka ntlafatsa haholo botsitso ba lipente tsa latex. Ha ho etsoa pente ea latex, HEC e ka thibela ka katleho li-pigment le li-filler ho rarolla, ho lumella pente hore e lule e qhalakantsoe ka mokhoa o ts'oanang nakong ea polokelo le tšebeliso. Thepa ena e bohlokoa haholo bakeng sa polokelo ea nako e telele, e thusa ho lelefatsa bophelo ba sethala sa pente ea latex.
Ho boloka metsi
Kaho ea pente ea latex hangata e kenyelletsa tšebeliso ea metsi a mangata, 'me thepa e babatsehang ea ho boloka metsi ea HEC e boloka filimi ea ho roala e le mongobo nakong ea ho omisa, ho qoba liphoso tse holim'a metsi tse kang ho phunyeha, phofo le mathata a mang a bakoang ke ho fetoha mouoane ka potlako ha metsi. . Sena ha se thuse feela ho theha filimi ea ho roala, empa hape e ntlafatsa ho khomarela le ho tšoarella ha filimi ea ho roala.
Phetoho ea Rheology
Joaloka mofetoleli oa rheology, HEC e ka fetola boitšoaro ba ho kuta moriri oa lipente tsa latex, ke hore, viscosity ea pente e fokotsehile ka litekanyetso tse phahameng tsa ho kuta (tse kang ho hlatsoa, ho roala, kapa ho fafatsa), ho etsa hore ho be bonolo ho e sebelisa, le litefiso tse tlase tsa ho kuta. Ho hlaphoheloa ha viscosity ka litekanyetso tsa ho kuta (mohlala, ha u phomotse) ho thibela ho theoha le ho phalla. Thepa ena ea rheological e na le tšusumetso e tobileng mohahong le boleng ba ho qetela ba ho roala ha pente ea latex.
Lintlafatso tsa kaho
Kenyelletso ea HEC e ka ntlafatsa haholo ts'ebetso ea pente ea latex, e etsa hore pente e be bonolo le e ts'oanang haholo nakong ea kopo. E ka fokotsa matšoao a borashe, ea fana ka boreleli bo botle le khanya ea filimi ea ho roala, le ho ntlafatsa boiphihlelo ba mosebelisi.
Khetha 'me u sebelise
Litabeng tsa pente ea latex, khetho le litekanyetso tsa HEC li hloka ho fetoloa ho latela litlhoko tse khethehileng tsa kopo. HEC e nang le li-viscosity tse fapaneng le li-degree tsa substitution e tla ba le litlamorao tse fapaneng ts'ebetsong ea lipente tsa latex. Ka kakaretso, HEC e nang le viscosity e phahameng e loketse haholo bakeng sa lipente tsa latex tse teteaneng tse hlokang viscosity e phahameng, ha HEC e nang le viscosity e tlaase e loketse lipente tse koahetsoeng ka tšesaane tse nang le mokelikeli o motle. Ho feta moo, palo ea HEC e kenyellelitsoeng e hloka ho ntlafatsoa ho latela litlhoko tsa 'nete. HEC e ngata haholo e tla baka ho tenya ho feteletseng ha ho roala, e leng ho sa lokelang ho haha.
E le tlatsetso ea bohlokoa ea ts'ebetso, hydroxyethyl cellulose e bapala likarolo tse ngata lipenteng tsa latex: ho tiisa, ho tsitsisa, ho boloka metsi le ho ntlafatsa ts'ebetso. Tšebeliso e utloahalang ea HEC e ke ke ea ntlafatsa feela botsitso ba polokelo le ts'ebetso ea kaho ea pente ea latex, empa hape e ntlafatsa haholo boleng le ho tšoarella ha filimi ea ho roala. Ka nts'etsopele ea indasteri ea ho roala le tsoelo-pele ea theknoloji, menyetla ea ts'ebeliso ea HEC ka pente ea latex e tla ba e pharaletseng.
Nako ea poso: Aug-03-2024