Cellulose fiber muaj cov khoom theoretical hauvcov tshuaj sib xyaw qhuavxws li kev txhawb nqa peb-seem, kev ua kom tuab, kev xauv dej, thiab kev sib txuas dej. Siv cov nplaum pobzeb ua piv txwv, cia peb saib cov nyhuv ntawm cellulose fiber rau qhov fluidity, kev ua haujlwm tiv thaiv kev plam, lub sijhawm qhib ntawm cov nplaum pobzeb, thiab nws cov khoom rheological hauv cov kua dej.
Cov nyhuv ntawm cellulose fiber rau kev ua haujlwm ntawm cov nplaum pobzeb
Kev cuam tshuam ntawm cov pob zeb sib txawv rau qhov xav tau dej ntawmnplaum pobzebQhov sib txawv ntawm cov mis yooj yim tsuas yog qhov sib txawv ntawm qib thiab hom xuab zeb, uas ua rau muaj qhov sib txawvkev xav tau dejntawm cov tshuaj khib.
Cov nyhuv ntawmcellulosefiber ntawm qhov fluidity ntawm cov nplais nplaum
Qhov ntxiv ntawmcellulosecov fibertxo qhov fluidity ntawm cov nplaum pobzeb sib xyaw tshiab, qhia tiascellulosecov fiber muaj lub luag haujlwm ua kom tuab rau cov nplaum pobzeb sib xyaw tshiab; qhov ntxiv ntawmcelluloseCov fiber ntau dua yog qhov tsim nyog dua los ua kom cov dej xav tau ntawm cov qauv ntsuas los ntawm 0.5%, kom ntseeg tau tias qhov sib xws ntawm cov kua dej yog ntawm (150 ± 5) hli, thiab xyuas kom meej tias tsim nyogkev tsim khokev ua tau zoo los ntawm kev nce qhov kev xav tau dej kom tsim nyog.
Cov nyhuv ntawmcellulosecov fiber ntawm cov khoom tiv thaiv kev plam ntawm cov nplaum pobzeb
CelluloseCov fiber tuaj yeem ua rau cov nplais nplaum tuab thaum ua kom muaj kev ua haujlwm zoo, yog li txhim kho kev ua haujlwm tiv thaiv kev plam ntawm cov nplais nplaum.
Qhov ntxiv ntawmcelluloseCov fiber ua rau cov viscosity ntawm cov kua viscosity yooj yim qhia txog cov viscosities sib txawv nyob rau hauv cov quab yuam sib txawv. Nws qhia cov viscosity qis ntawm cov quab yuam siab thiab cov viscosity siab ntawm cov quab yuam qis. Nws yog lub luag haujlwm thixotropic ntawmcellulosefiber uas ua raucelluloseCov fiber ntau ua rau cov nplais pobzeb tshiab sib xyaw ua ke zoo dua qub (lub zog shear siab) thiab tiv thaiv kev plam (lub zog shear qis). Kev ua tau zoo tiv thaiv kev plam tuaj yeem ua tiav kev nplaum cov pobzeb los ntawm sab saud mus rau hauv qab, txhim kho kev ua haujlwm ntawm kev tsim kho, lossis tuaj yeem ua tiav kev nplaum cov pobzeb nrog qhov loj dua.
Cov nyhuv ntawmcellulosefiber ntau rau lub sijhawm qhib ntawm cov nplaum pobzeb
Ntxiv rau qhov kev ua tau zoo tiv thaiv kev plam, lwm qhov kev ua tau zoo tseem ceeb ntawm cov nplaum pobzeb yog lub sijhawm qhib.Lub sijhawm qhibhais txog lub sijhawm ntev tshaj plaws uas cov nplaum pobzeb tuaj yeem nplaum rau ntawm phab ntsa tom qab raug txhuam rau ntawm phab ntsa. Qhov zoo ntawm qhov kev ua tau zoo no cuam tshuam ncaj qha rau qhov ceev ntawm kev nplaum pobzeb thiab cuam tshuam rau kev ua haujlwm ntawm kev tsim kho.
Qhov ntxiv ntawmcelluloseCov fiber ua rau lub sijhawm qhib ntawm cov nplaum ntev dua. Lub sijhawm qhib ntev qhia tau tias zoocelluloseCov fiber muaj lub luag haujlwm ntawm kev xauv thiab kev coj dej.
Cellulosecov fiber muaj cov haujlwm ua kom cov fiber tuab, uas tuaj yeem ua rau kom qhov siab tshaj plaws ntawm qhov xav tau dej ntawm cov nplais pobzeb nplaum;Ince qhovtiv thaiv kev saggingcov khoom ntawm cov nplaum pobzeb tshiab thiab txhim kho lawv cov khoom tiv thaiv kev plam.Cellulosefiber muaj ib qhothixotropickev ua haujlwm. Thaum lub zog shear siab siv rau lub kaw lus nplaum pobzeb tshiab, lub kaw lus qhia txog qhov viscosity qis dua; thaum lub zog shear me me siv rau lub kaw lus, lub kaw lus qhia txog qhov viscosity siab dua. Lub luag haujlwm no ntawmcelluloseCov fiber ua rau cov nplais pobzeb tshiab yooj yim siv thaum lub sijhawm tsim kho thiab muaj lub luag haujlwm tiv thaiv kev plam tom qab cov pobzeb raug nplaum. Ntawm ib sab tes,celluloseCov fiber me ntsis ua rau cov mis yooj yim xav tau dej ntau ntxiv, thiab ntawm qhov tod tes, nws muaj lub luag haujlwm ua dej zoo, uas tuaj yeem ncua lub sijhawm qhib ntawm cov nplaum pobzeb tshiab thiab txhim kho kev ua haujlwm ntawm kev tsim kho.
Lub sijhawm tshaj tawm: Lub Yim Hli-20-2024