Redispersible polymer hmoov (RDP) yog cov khoom siv dav siv polymer ntxiv uas tau hloov pauv cov ntaub ntawv tsim kho.Nws tau ua lub luag haujlwm tseem ceeb hauv kev txhim kho qhov zoo thiab ua haujlwm ntawm ntau yam khoom siv hauv tsev.Txawm li cas los xij, kev txheeb xyuas RDP tuaj yeem nyuaj me ntsis, tshwj xeeb tshaj yog rau cov tsis paub txog nws cov yam ntxwv.
Nov yog qee cov lus qhia txog kev txheeb xyuas RDP kom raug:
1. Tshuaj muaj pes tsawg leeg
RDP yog ib copolymer ntawm vinyl acetate thiab ethylene.Nws yog polymerized los ntawm yas acetate, ethylene thiab lwm yam monomers nyob rau hauv lub xub ntiag ntawm surfactants thiab tiv thaiv colloids.Cov tshuaj muaj pes tsawg leeg ntawm RDP plays lub luag haujlwm tseem ceeb hauv nws txoj kev ua tau zoo thiab tus cwj pwm.Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tsum tau kawm cov tshuaj muaj pes tsawg leeg ntawm RDP ua ntej siv nws hauv cov khoom siv hauv tsev.
2. Nta
RDP muaj qee qhov yooj yim paub tus yam ntxwv.Ua ntej, nws yog ib tug zoo dawb, tawm-dawb los yog lub teeb daj hmoov.Qhov thib ob, nws muaj qhov loj me me ntawm 5-100 microns.Thib peb, nws yog dej-soluble thiab muaj cov khoom nplaum zoo.
3. Ntim
RDP feem ntau yog ntim rau hauv lub hnab yas kaw lossis lub thawv kom tiv thaiv kev nqus dej.Feem ntau muaj daim ntawv lo thiab cov lej ntawm lub pob uas muab cov ntaub ntawv hais txog hom, qib thiab cov chaw tsim khoom ntawm RDP.Nws yog ib qho tseem ceeb los tshuaj xyuas lub ntim ua ntej yuav RDP kom paub tseeb tias nws tsis raug cuam tshuam los yog raug rau cov dej noo.
4. Cov yam ntxwv ua tau zoo
RDP nthuav tawm ntau yam kev ua tau zoo uas paub qhov txawv ntawm lwm cov polymers.Piv txwv li, RDP muaj dej tsis kam, zoo adhesion thiab yooj.Nws kuj muaj cov khoom ua yeeb yaj kiab zoo, uas ua rau nws yog qhov zoo tshaj plaws rau cov khoom siv hauv tsev xws li pobzeb adhesives, grout, thiab pob zeb.
5. Kev sib haum xeeb
RDP yog sib xws nrog lwm cov ntaub ntawv hauv tsev xws li cement, gypsum thiab txiv qaub.Nws compatibility nrog cov ntaub ntawv no ua kom paub tseeb tias qhov kev ua tau zoo ntawm cov khoom kawg tsis muaj kev cuam tshuam.Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tau soj ntsuam qhov compatibility ntawm RDP ua ntej siv nws nyob rau hauv lub tsev cov ntaub ntawv.
Hauv cov ntsiab lus, kev txheeb xyuas RDP yuav tsum muaj kev nkag siab yooj yim ntawm nws cov tshuaj muaj pes tsawg leeg, cov khoom, ntim, kev ua tau zoo, thiab kev sib raug zoo.Los ntawm kev tsom mus rau cov xwm txheej no, ib tus tuaj yeem yooj yim sib txawv RDP los ntawm lwm cov polymers thiab xyuas kom nws siv tau zoo hauv cov khoom siv.
Post lub sij hawm: Lub Xya hli ntuj-19-2023