Cellulose fiber muaj theoretical zog hauvqhuav-mix mortarxws li peb-dimensional reinforcement, thickening, dej locking, thiab dej conduction. Noj cov nplais nplaum ua piv txwv, cia peb saib cov txiaj ntsig ntawm cellulose fiber ntau ntawm qhov fluidity, kev ua haujlwm tsis zoo, qhib lub sijhawm ntawm pobzeb nplaum, thiab nws cov khoom rheological hauv cov kua dej.
Cov nyhuv ntawm cellulose fiber rau kev ua haujlwm ntawm cov nplais nplaum
Kev cuam tshuam ntawm sib txawv aggregates ntawm cov dej xav tau ntawmdaim nplaum nplaum: Qhov sib txawv ntawm cov qauv yooj yim tsuas yog qhov sib txawv ntawm kev muab qhab nia thiab hom xuab zeb, uas ua rau qhov sib txawvdej xav tauntawm mortar.
Cov nyhuv ntawmcellulosefiber ntau ntawm fluidity ntawm pobzeb nplaum
Qhov ntxiv ntawmcellulosefiber ntautxo cov fluidity ntawm freshly mixed pobzeb nplaum, qhia tiascellulosefiber ntau muaj qhov ua kom tuab rau cov pobzeb sib xyaw ua ke tshiab; qhov ntxiv ntawmcellulosefiber ntau yog qhov tsim nyog los ua kom cov dej xav tau ntawm cov qauv ntsuas ntsuas los ntawm 0.5%, kom ntseeg tau tias qhov sib thooj fluidity nyob ntawm (150 ± 5) mm, thiab xyuas kom haum.kev tsim khokev ua tau zoo los ntawm qhov tsim nyog nce cov dej xav tau.
Cov nyhuv ntawmcellulosefiber ntau ntawm cov khoom tiv thaiv plam ntawm cov nplais nplaum
Cellulosefiber ntau tuaj yeem ua kom cov nplais nplaum nplaum thaum ua kom muaj kev tsim kho zoo, yog li kev txhim kho kev ua haujlwm ntawm cov nplais nplaum.
Qhov ntxiv ntawmcellulosefiber ntau ua rau cov viscosity ntawm qhov yooj yim viscosity tov qhia txawv viscosities nyob rau hauv sib txawv shear rog. Nws qhia tau hais tias tsawg viscosity ntawm siab shear quab yuam thiab siab viscosity ntawm tsawg shear quab yuam. Nws yog thixotropic muaj nuj nqicellulosefiber ntau uas enablescellulosefiber ntau muab cov pobzeb sib xyaw ua ke tshiab ua kom zoo dua kev tsim kho (siab shear force) thiab kev ua haujlwm tsis zoo (tsawg shear force). Kev ua haujlwm zoo los tiv thaiv plam tuaj yeem ua tiav cov txheej txheem ntawm cov vuas los ntawm sab saum toj mus rau hauv qab, txhim kho kev tsim kho kom zoo, lossis tuaj yeem ua tiav cov txheej txheem ntawm cov vuas nrog cov khoom loj.
Cov nyhuv ntawmcellulosefiber nyob rau lub sijhawm qhib ntawm pobzeb adhesives
Ntxiv nrog rau kev ua haujlwm tiv thaiv plam, lwm qhov kev ua haujlwm tseem ceeb ntawm cov nplais nplaum yog lub sijhawm qhib.Lub sijhawm qhibhais txog lub sijhawm siab tshaj plaws uas cov nplais nplaum tuaj yeem muab tso rau ntawm phab ntsa tom qab muab combed rau ntawm phab ntsa. Qhov zoo ntawm qhov kev ua tau zoo no cuam tshuam ncaj qha rau kev ceev ntawm cov vuas pasting thiab cuam tshuam rau kev tsim kho kom zoo.
Qhov ntxiv ntawmcellulosefiber ntau ncua lub sijhawm qhib ntawm cov nplaum. Lub sijhawm qhib txuas ntxiv qhia tau tias zoocellulosefiber ntau muaj lub luag haujlwm ntawm kev kaw thiab ua dej.
Cellulosefiber ntau muaj fiber ntau thickening muaj nuj nqi, uas yuav ua rau kom lub Upper txwv ntawm cov dej yuav tsum tau ntawm cov pobzeb adhesives;Ince yanti-saggingcov cuab yeej ntawm cov pobzeb tshiab nplaum thiab txhim kho lawv cov khoom tiv thaiv plam.Cellulosefiber muaj athixotropicmuaj nuj nqi. Thaum lub siab shear quab yuam yog siv rau cov pobzeb tshiab nplaum, lub kaw lus nthuav tawm qis dua viscosity; Thaum ib tug me me shear quab yuam yog siv rau lub system, lub kaw lus muaj viscosity ntau dua. Qhov no muaj nuj nqi ntawmcellulosefiber ntau ua rau cov pobzeb tshiab nplaum yooj yim rau kev siv thaum lub sijhawm tsim kho thiab muaj kev ua haujlwm zoo los tiv thaiv plam tom qab cov vuas tau muab tso rau. Ntawm ib sab,cellulosefiber ntau me ntsis ua kom cov dej xav tau ntawm cov qauv yooj yim, thiab ntawm qhov tod tes, nws muaj cov dej ua haujlwm zoo, uas tuaj yeem txuas ntxiv lub sijhawm qhib ntawm cov pobzeb tshiab nplaum thiab txhim kho kev tsim kho.
Post lub sij hawm: Aug-20-2024