Yuav ua li cas systematically tswj thiab tswj cov waterproof thiab breathable membrane

1. Cia ntawm cov dej tsis zoo thiab ua tsis taus pa
Thaum cov ntaub ntawv khaws cia rau lub sijhawm ntev, nws yuav tsum muaj kev ua haujlwm zoo thiab muaj txiaj ntsig siv, yog li lub neej ntawm cov dej tsis zoo thiab ua pa membrane yog qhov tseem ceeb. Yog li ntawd, yuav tsum tau saib xyuas tshwj xeeb hauv kev khaws cia.
Kev khaws cia ntawm cov dej tsis zoo thiab ua tsis taus pa microfiltration tuaj yeem muab faib ua cov chaw ntub dej thiab cia qhuav. Txawm li cas los xij, lub hom phiaj yog los tiv thaiv hydrolysis ntawm daim nyias nyias, tiv thaiv kev loj hlob thiab yaig ntawm cov kab mob, shrinkage thiab deformation ntawm daim nyias nyias, thiab lwm yam.
① ntub dej cia
Tus yuam sij rau kev khaws cia ntub yog ib txwm ua kom cov membrane ntub nrog cov tshuaj khaws cia. Cov tshuaj tiv thaiv tuaj yeem siv cov qauv hauv qab no: dej: glycerin: formaldehyde {{0}}.5: 20: 0.5. Lub luag haujlwm ntawm formaldehyde yog los tiv thaiv kev loj hlob thiab kev loj hlob ntawm cov kab mob ntawm cov kab mob ntawm daim nyias nyias thiab tiv thaiv kev yaig ntawm daim nyias nyias. Lub hom phiaj ntawm kev ntxiv glycerin yog txo qis qhov chaw khov ntawm cov tshuaj khaws cia thiab tiv thaiv kev puas tsuaj rau daim nyias nyias vim khov. Cov formaldehyde hauv cov mis kuj tuaj yeem hloov tau los ntawm tooj liab sulfate thiab lwm yam fungicides uas tsis ua mob rau daim nyias nyias. Kev khaws cia ntawm cellulose acetate zaj duab xis yog kub 5-40 degree , pH =4.5-5, thiab qhov kub thiab pH ntawm non-cellulose acetate zaj duab xis preservation yuav dav dua.
② Qhuav cia
Waterproof thiab breathable microfiltration daim nyias nyias yog feem ntau muab nyob rau hauv lub lag luam nyob rau hauv ib tug qhuav lub xeev, vim hais tias nws yog ib qho yooj yim mus khaws thiab thauj. Tsis tas li ntawd, yog tias cov zaj duab xis ntub dej yuav tsum tau muab cia rau hauv txoj kev qhuav, cov yeeb yaj kiab yuav tsum tau kho los ntawm cov txheej txheem hauv qab no. Txoj kev tshwj xeeb yog: cov cellulose acetate membrane tuaj yeem tsau rau hauv 50 feem pua ​​​​glycerin aqueous tov los yog 0.1 feem pua ​​​​sodium dodecylsulfonate aqueous tov rau 5-6 hnub, thiab qhuav ntawm cov txheeb ze av ntawm 88 feem pua. Polysulfone daim nyias nyias tuaj yeem qhuav ntawm chav tsev kub nrog 10 feem pua ​​​​glycerin, sulfonated roj, polyethylene glycol thiab lwm yam kev daws teeb meem raws li lub cev qhuav dej. Tsis tas li ntawd, cov surfactant kuj muaj txiaj ntsig zoo rau qhov deformation ntawm qhov pores ntawm cov yeeb yaj kiab tiv thaiv.
2. Cov teeb meem uas yuav tsum tau them sai sai rau hauv kev saib xyuas thiab kev saib xyuas ntawm cov dej tsis zoo thiab breathable membrane system
Kev saib xyuas thiab kev saib xyuas ntawm daim nyias nyias yuav tsum tsom rau cov teeb meem hauv qab no.
① Raws li cov txheej txheem sib txawv, kev saib xyuas tshwj xeeb yuav tsum tau them rau ib puag ncig ntawm kev siv, tshwj xeeb tshaj yog kub thiab pH tus nqi ntawm cov kua pub, thiab txawm tias cov ntsiab lus chlorine hauv cov kua pub.
② Thaum lub kaw lus membrane kaw rau lub sijhawm luv luv, yuav tsum tau them nyiaj rau cov dej noo ntawm daim nyias nyias, vim hais tias ib zaug ntawm daim nyias nyias poob dej thiab tsis muaj kev ntsuas kho, lub qhov hws ntawm cov dej tsis zoo thiab ua pa ntawm daim nyias nyias yuav ntsws thiab deform, txo kev ua haujlwm ntawm daim nyias nyias.
③ Thaum nres, tsis txhob sib cuag nrog cov kua uas muaj kuab paug siab.
④ Tsis tu ncua ntxuav thiab tswj cov daim nyias nyias nrog kev saib xyuas kom txo tau cov pa phem.
⑤ Hauv kev siv, ua haujlwm raws li kev ua haujlwm ntawm cov txheej txheem membrane tuaj yeem tiv taus, thiab zam kev ua haujlwm ntev ntev kom tsis txhob muaj kev puas tsuaj rau daim nyias nyias.