Lub aperture ntawm txheem lim ntawv

Lub aperture ntawm daim ntawv lim txheem yog hais txog qhov loj ntawm lub qhov ntawm cov ntawv lim. Thaum tsim cov qauv lim ntawv, tus qauv pore loj sieve feem ntau yog siv los tshuaj xyuas cov cellulose fibers kom ntseeg tau tias qhov sib xws thiab qhov tseeb ntawm qhov pore loj.

Lub aperture ntawm cov qauv lim ntawv feem ntau yog ntsuas nyob rau hauv units μ Sawv cev los ntawm m (micrometers). Qhov ntau qhov pore sib txawv yog tsim rau cov xwm txheej sib txawv, piv txwv li, qhov pore me me yog qhov tsim nyog rau lim cov khoom me me, thaum lub qhov pore loj dua yog tsim rau lim cov khoom loj.

Feem ntau, qhov pore loj ntau ntawm cov qauv lim ntawv yog {{0}}.2 μ M txog 50 μ Nruab nrab m. Ntawm lawv, 0.2 μ M's lim ntawv yog tsim rau lim cov kab mob, kab mob, kab mob, thiab lwm yam, thaum 50 μ M's filter paper yog tsim rau lim cov khoom loj ntawm sediment, tshem tawm cov khib nyiab, thiab lwm yam.

Ntxiv rau qhov pore loj, qhov porosity ntawm cov qauv lim ntawv kuj yog ib qho tseem ceeb parameter. Porosity yog hais txog qhov feem pua ​​​​ntawm cov voids hauv tag nrho cov ntim ntawm cov ntawv lim, thiab feem ntau yog siv los ntsuas qhov ua tau zoo ntawm cov ntawv lim. Qhov siab dua qhov porosity, qhov pom kev ua haujlwm qis ntawm cov ntawv lim, thiab rov ua dua.

Hauv luv luv, xaiv qhov pore loj thiab porosity ntawm cov qauv lim ntawv tuaj yeem pab peb lim cov khoom xav tau zoo dua, yog li txhim kho kev ua haujlwm thiab qhov tseeb ntawm cov txiaj ntsig.