Lub cev muaj zog ntawm redispersible latex hmoov

Redispersible polymer hmoov (RDP) yog ib qho kev ua haujlwm siab polymer hmoov dav siv hauv kev tsim kho, txheej thiab lwm yam lag luam. Nws yog tsim los ntawm dispersing ib tug polymer emulsion nyob rau hauv dej, ces qhuav los ua ib tug hmoov. Cov hmoov tuaj yeem yooj yim redispersed hauv dej los tsim ib qho emulsion ruaj khov, ua rau nws muaj ntau yam polymer.

Cov yam ntxwv ntawm lub cev ntawm RDP ua lub luag haujlwm tseem ceeb hauv nws qhov kev ua tau zoo thiab tsim nyog rau kev siv sib txawv. Hauv tsab xov xwm no, peb yuav tham txog ntau yam khoom ntawm lub cev ntawm RDP thiab vim li cas lawv tseem ceeb.

Particle Loj thiab Kev faib tawm

Qhov loj me me thiab kev faib tawm ntawm RDP txiav txim siab nws qhov fluidity thiab yooj yim ntawm kev tuav. Qhov me me particle loj, qhov zoo dua qhov fluidity. RDP hmoov yog feem ntau nyob rau hauv 5-200 micron ntau thiab muaj ib tug nqaim particle loj faib. Cov khoom me me me me faib ua kom ntseeg tau tias cov hmoov tawg yooj yim hauv dej thiab muab cov emulsion ruaj khov.

Qhov ntom ntom

Bulk ntom yog qhov hnyav ntawm RDP ib chav tsev ntim. Qhov ntom ntom ntawm RDP hmoov cuam tshuam rau nws qhov chaw cia thiab kev thauj mus los. Tsawg qhov ntom ntom txhais tau tias ntau qhov ntim rau tib qhov hnyav thiab xav tau ntau qhov chaw cia. Ntawm qhov tod tes, qhov ntau dua qhov ceev txhais tau tias tsawg dua rau tib qhov hnyav thiab xav tau qhov chaw cia tsawg dua.

Qhov ntom ntom ntawm RDP txawv ntawm hom, qib thiab cov qauv. Nws qhov ntau yog 200-700 kg / m3. Feem ntau, cov khoom qis qis yog xav tau kom yooj yim tuav thiab thauj.

dej cov ntsiab lus

Cov ntsiab lus dej yog ib qho tseem ceeb ntawm RDP raws li nws cuam tshuam rau nws cov khoom ruaj khov, dispersibility thiab zaj duab xis-tsim cov khoom. Cov ntsiab lus dej tuaj yeem sib txawv nyob ntawm kev tsim khoom, kev cia khoom thiab kev tsim khoom. Feem ntau, cov ntsiab lus dej hauv RDP yog li ntawm 1-3%, ua kom cov dej ntsiab lus qis los txhim kho qhov ruaj khov ntawm cov hmoov.

Zaj duab xis-forming zog

RDP feem ntau yog siv los ua cov nplaum lossis nplaum hauv kev tsim kho thiab txheej txheej. Nws cov khoom ua yeeb yaj kiab, xws li adhesion, cohesion, thiab yoog raws, yog qhov tseem ceeb hauv kev txiav txim siab nws qhov tsim nyog rau ntau yam kev siv.

Cov khoom ua yeeb yaj kiab ntawm RDP nyob ntawm seb hom polymer siv, hom emulsifier thiab polymer concentration. RDPs raug tsim los muab cov yeeb yaj kiab tshwj xeeb tsim kom tau raws li qhov yuav tsum tau muaj ntawm cov ntawv thov sib txawv.

redispersibility

Redispersibility yog hais txog lub peev xwm ntawm RDP los tsim cov emulsion ruaj khov thaum ntxiv rau dej tom qab ziab. Qhov no feature yog qhov tseem ceeb nyob rau hauv ntau daim ntawv thov raws li nws tso cai rau yooj yim tuav thiab sib tov.

Lub redispersibility ntawm RDP nyob ntawm seb hom thiab qhov zoo ntawm emulsifier siv nyob rau hauv cov txheej txheem tsim thiab cov khoom cia ntawm cov hmoov. RDP hmoov tuaj yeem muaj qhov sib txawv ntawm qhov sib txawv ntawm qhov yuav luag tam sim ntawd mus rau feeb.

viscosity

Viscosity yog ib qho kev ntsuas ntawm cov khoom tsis kam ntws. Lub viscosity ntawm RDP emulsion cuam tshuam rau nws daim ntawv thov khoom xws li kis tau tus mob, leveling thiab ntub dej. Cov viscosities siab dua muab kev tsim cov yeeb yaj kiab zoo dua thiab ruaj khov, tab sis yuav ua rau cov ntawv thov nyuaj dua.

Lub viscosity ntawm RDP emulsions nyob ntawm qhov concentration ntawm polymer, emulsifier hom thiab formulation. Nws tuaj yeem nyob ntawm qhov qis mus rau qhov siab, nyob ntawm qhov xav tau ntawm daim ntawv thov.

nyob rau hauv xaus

Hauv kev xaus, cov yam ntxwv ntawm lub cev ntawm RDP ua lub luag haujlwm tseem ceeb hauv nws qhov kev siv tau thiab kev ua haujlwm. Qhov loj me me, qhov ntom ntom ntom ntom, zaj duab xis, recispersibility thiab viscosity yog cov yam ntxwv ntawm lub cev ntawm RDP. Los ntawm kev nkag siab txog cov yam ntxwv no, cov tuam txhab lag luam tuaj yeem tsim kho RDP rau cov ntawv thov tshwj xeeb kom tau raws li cov neeg siv khoom sib txawv. RDP yog suav hais tias yog ib qho ntawm cov khoom siv zoo tshaj plaws thiab muaj txiaj ntsig zoo polymer hmoov, ua rau nws zoo tagnrho rau ntau qhov kev lag luam suav nrog kev tsim kho, txheej txheej thiab cov nplaum.