HEC ka Pente ea Latex

1. Kakaretso ea Motheo ea HEC

Selulose ea Hydroxyethyl (HEC)ke polymer e sa qhibiliheng metsing e sa ionic, e entsoeng ka ho kopanya cellulose le ethylene oxide ka mor'a alkalization. Jwalo ka sethibisi se qhibilihang metsing se sebetsang hantle haholo, HEC e bapala karolo e ke keng ea nkeloa sebaka penteng ea latex. Sebaka sa hydroxyethyl sebopehong sa eona sa limolek'hule se e fa ho qhibiliha ha metsi hantle le botsitso ba lik'hemik'hale, e leng se etsang hore e be e 'ngoe ea lithibisi tsa ether tsa cellulose tse sebelisoang haholo indastering ea pente e thehiloeng metsing.

2. Likarolo tse ka sehloohong tsa HEC penteng ea latex

Tshebetso e ntle haholo ea ho teteana

Tšobotsi e hlahelletseng ka ho fetisisa ea HEC ke bokhoni ba eona bo botle ba ho tenya:

Bokgoni bo phahameng ba ho teteana: palo e tlase haholo ea ho eketsa (hangata 0.2%-1.0% ea foromo eohle) e ka eketsa haholo viscosity ea sistimi.

Litšobotsi tsa mokelikeli oa pseudoplastic: viscosity e phahameng ha e sa fetohe, viscosity ea fokotseha nakong ea ho beola ha kaho, e leng se sa netefatse feela botsitso ba polokelo empa hape se nolofalletsa ho borashe

Ho feto-fetoha ha viscosity: Lihlahisoa tsa HEC tse nang le boima bo fapaneng ba limolek'hule li ka fana ka mefuta e fapaneng ea viscosity ho tloha ho likete ho isa ho mashome a likete a mPa·s

Taolo e ntle ea ts'ebetso ea rheological

HEC e ka ntlafatsa ka katleho thepa ea rheological ea pente ea latex:

Ho thibela ho kobeha: ho thibela pente ho kobeha ha e sebelisoa holim'a libaka tse otlolohileng

Phallo e ntle le boreledi: e ka batalatsa ka bohona kamora ho borasha, e fokotsa matshwao a borashe

Ho boloka metsi ka mokhoa o itekanetseng: ho liehisa mouoane oa metsi 'me ho lelefatsa nako ea ho bula.

Ho lumellana ho babatsehang le botsitso

HEC tsamaisong ea pente ea latex e bontša:

Ho ikamahanya le maemo ka bophara ba pH: tshebetso e tsitsitseng maemong a pH a 2-12

Mamello e ntle ea electrolyte: ha e angoe ke lintho tse letsoai tsamaisong

Botsitso bo botle ba polokelo: ha ho bonolo ho arola kapa ho fokotsa maemo nakong ea polokelo ea nako e telele

Litšobotsi tsa tšireletso le polokeho ea tikoloho

Jwalo ka setlatsetso se setala, HEC e na le dibopeho tse latelang:

Ha e na chefo ebile ha e kotsi: ha e na APEO, formaldehyde le lintho tse ling tse kotsi

E ka bola: e ka bola ke dikokwana-hloko, e sireletsa tikoloho

Litšobotsi tse tlase tsa VOC: e fihlela litlhoko tsa nts'etsopele ea liphahlo tse sireletsang tikoloho

3. Mesebetsi ea HEC penteng ea latex

Tsitsisa tsamaiso ea ho hasana

HEC e tsitsisa pigment le likaroloana tsa filler ka mekhoa e latelang:

Eketsa viscosity ea mohato o tsoelang pele le ho fokotsa sekhahla sa ho senngoa ha likaroloana

Theha sebopeho sa marangrang a mahlakore a mararo ho thibela ho kopana ha dikarolwana

Hlahisa phello ea sterik e sitisang ka likaroloana tsa latex

Ntlafatsa ts'ebetso ea kaho

HEC e ntlafatsa ts'ebetso ea kaho ea pente ea latex:

Fetola ho hlaka ha pente ho etsa hore e be bonolo ho e phutholla, ho e borasha kapa ho e fafatsa.

Laola ts'ebetso ea ho fafatsa le ho fokotsa tahlehelo ea kaho

Eketsa nako ea ho kolobisa metsi bakeng sa ts'ebetso e bonolo ea manonyeletso

Ntlafatsa boleng ba filimi ea pente

HEC e thusa ho etsa filimi ea pente ea boleng bo holimo:

Khothaletsa kabo e tšoanang ea mebala le ho ntlafatsa matla a ho pata

Fokotsa ho fokotseha le ho petsoha ha ho omisoa

Ntlafatsa bongata ba filimi ea pente le ho ntlafatsa ho hanyetsa ho hlatsuoa

4. Melemo ea ho bapisa ea HEC le li-thickeners tse ling

Ha e bapisoa le li-thickeners tse sa tloaelehang

Ha ho bapisoa le bentonite, silicate ea aluminium ea magnesium, jj.:

Bokgoni bo phahameng ba ho teteana

Ha e ame ho benya ha filimi ea pente

Ha e bake liphetoho boleng ba pH ba sistimi

Ha e bapisoa le li-thickeners tsa polymer tsa maiketsetso

Ha ho bapisoa le polyurethanes (HEUR) le acrylics (HASE):

Theko e qothisanang lehlokoa haholoanyane

Ha a amehe hakaalo ke liphetoho tsa foromo

Botsitso bo betere ba polokelo

Ha e bapisoa le li-ether tse ling tsa cellulose

Ha ho bapisoa le methyl cellulose (MC) le hydroxypropyl methyl cellulose (HPMC):

Ho qhibiliha ho betere, ha ho na moeli oa mocheso oa gel

Ho hanyetsa hlobo hamolemo

Ho tsamaisana hantle le li-emulsions

5. Litšobotsi tsa ts'ebeliso ea HEC penteng e khethehileng ea latex

Ka pente ea latex e benyang haholo

Fana ka viscosity e itekanetseng ea sebopeho ntle le ho ama khanya

Fokotsa tšekamelo ea ho arohana ha metsi ea litsamaiso tse phahameng tsa PVC

Thusa phofo ea aluminium le mebala e meng e sebetsang ho lumellana

Ka pente ea latex e tenyetsehang

Leka-lekanya khohlano pakeng tsa ho tenyetseha le ho thibela ho kobeha

Thibela ho rotha ha ho penta ka thata

Boloka ts'ebetso ea ho khutlela morao ha seaparo

Ka pente ea latex e sebetsang

Ha e ame sekoahelo sa antibacterial = Tšusumetso katlehong ea metsoako e sebetsang

Fana ka ts'ebetso e loketseng ea ho emisoa bakeng sa liphahlo tsa ho thibela mocheso

Sebelisana le li-preservative ho eketsa nako ea ho boloka lintho ka har'a nkho.

6. Litlhokomelo tšebelisong ea HEC

Mokhoa oa ho qhibiliha: Mokhoa o nepahetseng oa ho hasana o lokela ho sebelisoa ho thibela ho kopana ha lintho. Ho khothalletsoa ho kopanya le phofo e omileng kapa ho lokisa gel pele ho nako.

Nako ea ho eketsa: Hangata e eketsoa mohatong oa ho kopanya pente ho qoba ho kopana ka kotloloho le lintho tse itseng tse hasanyang pente.

Khetho ea ho lumellana: Hangata e sebelisoa hammoho le mefuta e meng ea li-thickeners ho fihlela liphello tsa tšebelisano-'moho

Maemo a polokelo: E lokela ho kwalwa le ho bolokwa tikolohong e omileng ho thibela ho monngoa ha mongobo le ho kopana ha tsona.

7. Mekhoa ea nts'etsopele ea nakong e tlang

Ka tsoelo-pele ea theknoloji ea pente ea latex, lihlahisoa tsa HEC le tsona li ntse li ntlafala khafetsa:

HEC e tlase ea molora e fokotsa tšusumetso filiming ea pente

HEC ea Instant e nolofatsa ts'ebetso ea tlhahiso

HEC e phekotsoeng holim'a metsi e ntlafatsa ts'ebetso ea ho hasana

E kopantsoe le nanotechnology ho nts'etsapele lihlahisoa tse sebetsang ka bongata

HECe na le boemo ba bohlokoa lefapheng la pente ea latex ka litšobotsi tsa eona tse ikhethang tsa ts'ebetso. Tšusumetso ea eona e ntle ea ho teteana, ts'ebetso e ntle ea kaho le litšobotsi tse tsitsitseng tsa polokelo li etsa hore e be e 'ngoe ea li-thickeners tse ratoang bakeng sa li-formulator tsa pente tse thehiloeng metsing. Ka litlhoko tse ntseng li thatafala tsa ts'ireletso ea tikoloho le nts'etsopele e tsoelang pele ea theknoloji ea ho roala, menyetla ea ts'ebeliso ea HEC penteng ea latex e tla ba kholo.