Redispersible hmoov VAE
Re-dispersible polymer hmoov cov khoom lag luam yog ib qho tseem ceeb ntawm kev tsim kho tshiab hauv cheeb tsam ntawm kev tsim kho thiab kev lag luam, muab ntau yam kev daws teeb meem vim lawv cov khoom tshwj xeeb thiab muaj peev xwm. Cov hmoov no feem ntau yog dej-soluble thiab tuaj yeem muab faib ua ntau hom nyob ntawm lawv cov tshuaj muaj pes tsawg leeg, suav nrog ethylene / vinyl acetate copolymers, vinyl acetate / ethylene terephthalate copolymer, thiab acrylic acid copolymer. Txhua hom copolymer muaj cov yam ntxwv sib txawv uas ua tau raws li ntau yam kev siv hauv kev lag luam sib txawv, los ntawm cov nplaum rau cov txheej, yog li nthuav cov peev txheej rau kev siv ntau yam khoom siv. Qhov kev ua tau zoo no yog qhov tseem ceeb hauv kev ua kom tau raws li qhov xav tau ntawm cov khoom siv qib siab uas pab txhawb kev txhim kho kev ua tau zoo thiab kav ntev hauv cov khoom siv niaj hnub.
Kev tsim cov txheej txheem ntawm cov khoom siv rov ua dua cov hmoov polymer muaj cov txheej txheem tshuaj tsuag kom qhuav, uas ua rau tsim cov hmoov zoo uas zoo rau kev tuav thiab ua haujlwm. Qhov tseem ceeb, cov hmoov no muaj kev tiv thaiv los ntawm polyvinyl cawv thaum lub sij hawm tsim khoom, kom ntseeg tau tias lawv tuav lawv txoj kev ncaj ncees kom txog rau thaum lawv npaj rov ua dua. Thaum cov hmoov rov ua kom rov qab mus rau hauv dej, lawv pom tau tias muaj peev xwm tshwj xeeb kom rov qab mus rau lub xeev ua kua, ua kom yooj yim ntawm kev siv ntau yam kev siv. Cov yam ntxwv no muaj txiaj ntsig tshwj xeeb hauv ib puag ncig uas lub sijhawm ua haujlwm tseem ceeb, vim nws tso cai rau cov neeg cog lus thiab cov kws tshaj lij kev lag luam ua haujlwm sib txuas nrog cov ntaub ntawv yam tsis muaj sijhawm tos ntev rau kev sib xyaw lossis ua kom muaj zog.
Kev siv dav dav ntawm cov khoom siv rov ua dua tshiab polymer cov hmoov yog ntxiv txhim kho los ntawm lawv cov yam ntxwv zoo tshaj plaws. Lawv lub peev xwm nplaum nplaum ua rau lawv zoo tagnrho rau kev siv hauv kev tsim cov nplaum nplaum, cov nplaum nplaum nplaum, thiab ntau yam khoom sib txuas, muab kev sib txuas ruaj khov, txhim khu kev qha hauv cov khoom siv hauv tsev. Tsis tas li ntawd, cov dej tsis sib haum xeeb ntawm cov hmoov polymer no muaj kev tiv thaiv kev ya raws, uas yog qhov tseem ceeb rau kev tswj xyuas qhov ntev thiab ua haujlwm ntawm cov qauv. Cov khoom siv hluav taws xob thermal kuj tseem ua rau lub zog ua haujlwm zoo hauv cov tsev, ua rau lawv muaj kev xaiv nrov ntawm architects thiab engineers tsom rau kev tsim qauv daws teeb meem. Raws li kev lag luam txuas ntxiv mus nrhiav cov ntaub ntawv tshiab los txhim kho cov khoom zoo thiab kev ua tau zoo, lub luag haujlwm ntawm cov khoom siv rov ua dua tshiab ntawm cov hmoov polymer yuav tuaj yeem loj hlob ntxiv, qhia txog lawv qhov tseem ceeb hauv kev siv tam sim no thiab yav tom ntej.
