Tam sim no, PVA kua nplaum yog ntau hom kua nplaum, dav hauv kev thov hauv ntau qhov chaw. Nws yog siv ob qho tib si los ntawm cov menyuam kawm ntawv hauv kev kawm ua haujlwm thiab los ntawm cov kws tshaj lij masons rau tso cov vuas luaj ceramic. Qhov muaj koob meej ntawm cov khoom siv no yog vim qhov yooj yim thiab yooj yim ntawm kev siv, tsis muaj tshuaj lom emissions thiab tus nqi pheej yig.
Traditional PVA kua nplaum yog homogeneous, viscous viscous ntawm cov xim dawb, tus cwj pwm los ntawm qib siab ntawm lub zog (thaum gluing) thiab zoo te tiv taus.
Kev lag luam niaj hnub tsim ntau ntau yam ntawm cov khoom no, uas sib txawv ntawm cov khoom sib txawv thiab muaj nyob rau hauv chav kawm load, raws li tus qauv dej tsis kam. Kev xaiv ntawm ib qho los yog lwm cov nplaum ncaj qha nyob ntawm thaj tsam ntawm kev siv thiab cov yam ntxwv tshwj xeeb ntawm cov ntaub ntawv uas yuav raug muab khi. Qhov kawg tshwm sim feem ntau nyob ntawm qhov no.
PVA universal kua nplaum muaj cov txuj ci zoo li noCov yam ntxwv, xws li gluing muaj peev xwm sib npaug li 400-450 N / m, tsawg noj, xws li ib puas mus rau cuaj puas grams ib square meter (nyob ntawm seb hom kev ua hauj lwm), siab Frost tsis kam, uas yog ntau tshaj plaub lub voj voog.
Ntxiv rau, nws tsim nyog sau cia lub sijhawm ua kom tiav ziab, raws li txoj cai, tsis pub tshaj nees nkaum plaub teev, thiab lub txee ntev ntev ntawm rau txog rau xya lub hlis.
Hnub no, PVA kua nplaum pom nws daim ntawv thov nyob rau hauv ntau qhov chaw. Nws yog siv ob qho tib si thaum tso cov vuas luaj ceramic, thiab thaum npog phab ntsa nrog cov phab ntsa, thiab txawm tias yog ib qho yuav tsum tau ntxiv rau hauv iav ntau lawm.
Cov ntaub nplaum nplaum, qhov tshuaj lom tsawg tshaj plaws ntawm txhua hom, yog siv los ua cov ntawv nplaum, duab los yog duab. Joinery, uas muaj dej tsis kam thiab zoo adhesion, yog siv thaum ua hauj lwm nrog ntau yam rooj tog. Glue "Moment", tus cwj pwm los ntawm lub sijhawm nias tsawg kawg, yog siv thaum tso laminate thiab parquet. Tsis tas li ntawd, muaj cov kua nplaum PVA tshwj xeeb rau cov khoom siv ntoo thiab tawv. Xws li cov khoom no kuj yog ib qho tseem ceeb ntawm cov primers thiab putties.
Tseem muaj cov nplaum tshwj xeeb uas tsim los rau cov nplais pobzeb thiab hauv pem teb, PVA homopolymer nplaum siv hauv cov txheej txheem tsim khoom tsim, nrog rau hauv kev lag luam textile thiab porcelain. Cov tom kawg yog lub zog tshajkev teeb tsa.
Ib puag ncig tus phooj ywg, kev nyab xeeb thiab tus nqi tsim nyog ua rau ib qho ntawm cov npe ntawm cov khoom siv tau zoo heev. Qhov no, los ntawm txoj kev, piav qhia txog ib qho ntawm cov laj thawj rau nws qhov muaj koob meej heev. Raws li nws lub hauv paus, lawv txawm tsim "ntse plasticine" - ib qho khoom ua si tshwj xeeb rau menyuam yaus uas tuaj yeem hloov nws lub xeev thiab ua txhua yam zoo.
Qhov pom tseeb zoo dua lwm cov tebchaw ntawm hom no yog qhov tseem ceeb uas niaj hnub no cov tuam txhab tsim khoom tau siv zog los txhim kho cov qauv ntawm PVA kua nplaum, thiab tsis txhob tsim cov nplaum tshiab.
