Re-dispersible latex hmoov yog dab tsi?

Re-dispersible latex hmoov, tseem hu ua redispersible polymer hmoov (RDP), yog ib tug dawb-flowing dawb hmoov tau los ntawm cov tshuaj tsuag kom qhuav aqueous vinyl acetate-ethylene copolymer dispersion. Nws yog ib qho tseem ceeb additive siv nyob rau hauv kev tsim kho cov ntaub ntawv xws li mortars, pobzeb adhesives, self-leveling compounds, thiab sab nrauv rwb thaiv tsev thiab tiav systems (EIFS).

Nov yog qee cov yam ntxwv tseem ceeb thiab cov khoom ntawm rov dispersible latex hmoov:

1. Polymer Composition: Redispersible latex hmoov feem ntau yog tsim los ntawm vinyl acetate-ethylene copolymer, txawm tias lwm cov polymers kuj tseem muaj nyob ntawm cov qauv tsim tshwj xeeb. Cov copolymers no muab cov hmoov nrog nws cov nplaum, cohesive, thiab zaj duab xis-forming zog.
2. Dej Redispersibility: Ib qho tseem ceeb tshaj plaws ntawm cov tshuaj redispersible latex hmoov yog nws lub peev xwm rau redisperse hauv dej tom qab ziab. Thaum sib xyaw nrog dej, cov hmoov hmoov sib cais los ua ib qho kev ruaj khov emulsion, zoo ib yam li thawj polymer dispersion. Cov cuab yeej no tso cai rau kev tuav tau yooj yim, khaws cia, thiab siv cov tshuaj khib nyiab qhuav thiab cov nplaum nplaum.
3. Adhesion thiab Cohesion: Redispersible latex hmoov txhim kho cov adhesion thiab cohesion ntawm cementitious cov ntaub ntawv, xws li mortars thiab pobzeb adhesives. Nws tsim cov ntaub ntawv hloov pauv tau yooj yim thiab ruaj khov polymer zaj duab xis thaum ziab, uas txhim kho kev sib raug zoo ntawm cov substrate thiab cov khoom siv.
4. Flexibility thiab Crack Resistance: Kev sib koom ua ke ntawm redispersible latex hmoov rau hauv cov cement-based formulations imparts yooj thiab tawg tsis kam rau cov khoom kawg. Qhov no yuav pab txo qis kev pheej hmoo ntawm shrinkage cracking thiab txhim kho lub sij hawm ntev ntawm cov khoom siv.
5. Dej Retention: Redispersible latex hmoov tuaj yeem txhim kho cov dej tuav cov khoom ntawm cov ntaub ntawv cementitious, tso cai rau lub sijhawm ua haujlwm ntev thiab txhim kho kev ua haujlwm. Qhov no yog tshwj xeeb tshaj yog nyob rau hauv kub thiab qhuav tej yam kev mob uas sai sai qhuav ntawm mortar los yog nplaum yuav tshwm sim.
6. Kev txhim kho cov cuab yeej cuab tam: Redispersible latex hmoov pab txhim kho ntau yam khoom siv ntawm cov khoom siv cement, suav nrog lub zog compressive, tensile zog, thiab kev cuam tshuam. Nws pab tsim cov khoom tsim kho kom ruaj khov thiab ruaj khov.

redispersible latex hmoov plays lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua haujlwm, kev ua haujlwm, thiab ua haujlwm ntev ntawm cov khoom siv cement-based siv hauv kev tsim kho. Nws cov dej redispersibility, adhesive zog, yooj, thiab tawg kuj ua rau nws muaj txiaj ntsig additive nyob rau hauv ntau yam khoom siv hauv tsev.