Dab tsi yog iav-hloov kub (Tg) ntawm redispersible polymer hmoov?

Lub iav-hloov kub (Tg) ntawm redispersible polymer hmoov tuaj yeem sib txawv raws li cov khoom siv polymer tshwj xeeb. Redispersible polymer hmoov feem ntau yog tsim los ntawm ntau yam polymers xws li yas acetate ethylene (VAE), vinyl acetate versatate (VAE VeoVa), thiab ethylene vinyl acetate (EVA), thiab lwm yam.

Tg ntawm VAE-raws li redispersible polymer hmoov feem ntau yog li ntawm -10 ° C txog 10 ° C. Lub Tg ntawm EVA-raws li redispersible polymer hmoov tuaj yeem sib txawv nyob ntawm qhov tshwj xeeb EVA copolymer siv, tab sis feem ntau nyob rau hauv thaj tsam ntawm -50 ° C txog 0 ° C.

Nws yog ib qho tseem ceeb kom nco ntsoov tias Tg ntawm redispersible polymer hmoov tuaj yeem cuam tshuam rau lawv cov khoom thiab kev ua tau zoo hauv ntau daim ntawv thov, xws li hauv cov cementitious systems, pobzeb nplaum, thiab renders. Yog li ntawd, nws tseem ceeb heev uas yuav tau xav txog Tg ntawm cov hmoov polymer tshwj xeeb uas tau siv thiab nws yuav cuam tshuam li cas rau daim ntawv thov.