Hydroxyethyl cellulose (HEC)bụ thickener, stabilizer na rheology regulator nke a na-ejikarị na agba latex. Ọ bụ ihe na-eme ka mmiri na-edozi mmiri nke polymer nwetara site na mmeghachi omume hydroxyethylation nke cellulose eke, nke nwere ezigbo mmiri solubility, adịghị egbu egbu na nchebe gburugburu ebe obibi. Dị ka akụkụ dị mkpa nke agba latex, usoro mgbakwunye nke hydroxyethyl cellulose na-emetụta kpọmkwem ihe ndị rheological, brushing arụmọrụ, nkwụsi ike, gloss, oge ihicha na ihe ndị ọzọ dị mkpa nke agba latex.
1. Usoro ọrụ nke hydroxyethyl cellulose
Ọrụ bụ isi nke hydroxyethyl cellulose na sistemụ agba latex gụnyere:
Ọkpụkpụ na nkwụsi ike: Otu hydroxyethyl dị na agbụ molekụla HEC na-etolite njikọ hydrogen na mkpụrụ ndụ mmiri, nke na-eme ka hydration nke sistem ahụ dịkwuo mma ma mee ka agba latex nwee mmetụta rheological ka mma. Ọ na-eme ka nkwụsi ike nke agba latex dịkwuo elu ma gbochie sedimentation nke pigmenti na fillers site na ịmekọrịta ihe ndị ọzọ.
Usoro Rheological: HEC nwere ike ịhazigharị ihe ndị rheological nke agba latex ma melite nkwusioru na mkpuchi mkpuchi nke agba. N'okpuru ọnọdụ dị iche iche dị iche iche, HEC nwere ike igosi mmiri dị iche iche, karịsịa na ọnụ ọgụgụ dị ala, ọ nwere ike ịbawanye viscosity nke agba, gbochie mmiri ozuzo, ma hụ na otu agba.
Mmiri mmiri na njide mmiri: hydration nke HEC na agba latex nwere ike ọ bụghị naanị ịbawanye viscosity ya, kamakwa ịgbatị oge ihicha nke ihe nkiri agba, belata nkwụsị, ma hụ na arụmọrụ dị mma nke agba n'oge a na-ewu.
2. Usoro mgbakwunye nke hydroxyethyl cellulose
Usoro mgbakwunye nkeHECnwere mmetụta dị mkpa na arụmọrụ ikpeazụ nke agba latex. Ụzọ mgbakwunye a na-ahụkarị gụnyere usoro mgbakwunye ozugbo, usoro mgbasa na usoro mgbasa, na usoro nke ọ bụla nwere uru na ọghọm dị iche iche.
2.1 Usoro mgbakwunye ozugbo
Usoro mgbakwunye kpọmkwem bụ ịgbakwunye hydroxyethyl cellulose ozugbo na sistemu agba latex, ma na-achọkarị mkpali zuru oke n'oge usoro ngwakọta. Usoro a dị mfe ma dị mfe iji rụọ ọrụ, ọ dịkwa mma maka mmepụta nke agba latex. Otú ọ dị, mgbe agbakwunyere ya kpọmkwem, n'ihi nnukwu akụkụ HEC, ọ na-esiri ike ịgbari na ịgbasa ngwa ngwa, nke nwere ike ime ka urughuru agglomeration, na-emetụta ọdịdị na ọdịdị rheological nke agba latex. Iji zere ọnọdụ a, ọ dị mkpa iji hụ na oge mkpali zuru oke na okpomọkụ kwesịrị ekwesị n'oge usoro mgbakwunye iji kwalite mgbasa na mgbasa nke HEC.
2.2 Usoro mgbasa
Usoro mgbaze bụ ịgbari HEC na mmiri iji mepụta ngwọta na-etinye uche, wee tinye ihe ngwọta na agba latex. The mgbasa usoro nwere ike hụ na HEC na-n'ụzọ zuru ezu etisasịwo, zere nsogbu nke urughuru agglomeration, na-eme ka HEC na-kesaa ọbụna na latex agba, na-egwu a mma ndim na rheological mmezi ọrụ. Usoro a dabara adaba maka ngwaahịa agba agba agba agba nke na-achọ nkwụsi ike agba dị elu na akụrụngwa rheological. Otú ọ dị, usoro mgbasa ozi na-ewe ogologo oge ma nwee ihe dị elu chọrọ maka ịkpali ọsọ ọsọ na nkwụsịtụ okpomọkụ.
2.3 Usoro mgbasa ozi
Usoro mgbasa ozi na-ejikọta HEC na ihe mgbakwunye ndị ọzọ ma ọ bụ ihe mgbaze ma na-agbasa ya site na iji ngwá ọrụ mgbasa ozi dị elu na-eme ka HEC kesaa ọbụna na agba latex. Usoro mgbasa ozi nwere ike ịzere agglomeration nke HEC nke ọma, nọgide na-enwe nkwụsi ike nke ihe owuwu molekụla ya, ma na-emeziwanye akụrụngwa rheological na brushing nke agba latex. Usoro mgbasa ozi dị mma maka mmepụta ihe dị ukwuu, ma ọ na-achọ iji ngwá ọrụ mgbasa ozi ọkachamara, na njikwa okpomọkụ na oge n'oge usoro mgbasa ozi siri ike.
3. Mmetụta nke Hydroxyethyl Cellulose Addition Method na Latex Paint Performance
Ụzọ mgbakwunye HEC dị iche iche ga-emetụta ihe ndị a bụ isi nke agba latex:
3.1 Njirimara Rheological
The rheological Njirimara nkeHECbụ isi ọrụ egosi agba latex. Site na nyocha nke ụzọ mgbakwunye HEC, achọpụtara na usoro mgbasa na usoro mgbasa ozi nwere ike imeziwanye ihe rheological nke agba latex karịa usoro mgbakwunye kpọmkwem. Na nyocha rheological, usoro mgbasa ozi na usoro mgbasa ozi nwere ike imeziwanye viscosity nke agba latex na ọnụ ala dị ala, nke mere na agba latex nwere ezigbo mkpuchi na nkwusioru, ma na-ezere ihe ngosi nke sagging n'oge usoro ihe owuwu.
3.2 Nkwụsi ike
Usoro mgbakwunye HEC nwere mmetụta dị ukwuu na nkwụsi ike nke agba latex. Agba Latex na-eji usoro mgbasa na usoro mgbasa ozi na-abụkarị nke kwụsiri ike ma nwee ike igbochi sedimentation nke pigmenti na ihe ndochi. Usoro mgbakwunye ozugbo na-adịkarị mfe mgbasa nke HEC na-enweghị isi, nke na-emetụta nkwụsi ike nke agba ahụ, ọ na-adịkarịkwa ka sedimentation na stratification, na-ebelata ndụ ọrụ nke agba latex.
3.3 mkpuchi mkpuchi
Ihe mkpuchi mkpuchi na-agụnye ọkwa, ike mkpuchi na ọkpụrụkpụ nke mkpuchi. Mgbe a nabatara usoro mgbasa ozi na usoro mgbasa ozi, nkesa nke HEC na-eme ka ọ dịkwuo mma, nke nwere ike ịchịkwa mmiri nke mkpuchi ahụ nke ọma ma mee ka mkpuchi ahụ gosipụta ọkwa dị mma na ntinye n'oge usoro mkpuchi. Usoro mgbakwunye ozugbo nwere ike ime ka nkesa na-ezighi ezi nke akụkụ HEC, nke na-emetụta arụmọrụ mkpuchi.
3.4 Oge nkụ
Njide mmiri nke HEC nwere mmetụta dị mkpa na oge ihicha nke agba latex. Usoro mgbasa na usoro mgbasa ozi nwere ike ijigide mmiri dị na agba latex nke ọma, gbatịa oge ihicha, ma nyere aka belata ihe omume nke ihicha oke na mgbawa n'oge usoro mkpuchi. Usoro mgbakwunye ozugbo nwere ike ime ka ụfọdụ HEC gbazee ezughị ezu, si otú ahụ na-emetụta ịdị n'otu ihicha na mkpuchi mkpuchi nke agba latex.
4. Atụmatụ nkwalite
Ụzọ dị iche iche nke ịgbakwunyehydroxyethyl cellulosenwere mmetụta dị ukwuu na arụmọrụ nke usoro agba latex. Usoro mgbasa ozi na usoro mgbasa ozi nwere mmetụta dị mma karịa usoro mgbakwunye kpọmkwem, karịsịa n'ịkwalite njirimara rheological, nkwụsi ike na mkpuchi mkpuchi. Iji mee ka arụmọrụ nke agba latex dịkwuo mma, a na-atụ aro ka iji usoro mgbasa ozi ma ọ bụ usoro mgbasa ozi n'oge usoro mmepụta iji hụ na mgbasa ozi zuru oke na nkesa nke HEC, si otú ahụ na-eme ka arụmọrụ zuru oke nke agba latex dịkwuo mma.
Na mmepụta n'ezie, a ga-ahọrọ usoro mgbakwunye HEC kwesịrị ekwesị dị ka usoro a kapịrị ọnụ na nzube nke agba latex si dị, na ndabere nke a, a ga-emezi usoro mkpali, ịgbasa na ịgbasa iji nweta ezigbo ọrụ agba latex.
Oge nzipu: Nov-28-2024