Cov cellulose muaj kev hais ua yog cov khoom xyaw uas siv rau hauv cov xim pleev xim thiab pleev xim xws li cov hmoov stainless. Putty yog hmoov-raws li cov lim siv los sau cov khoob, cov kab nrib pleb thiab qhov nyob hauv txhua qhov chaw. Cellulose ether txhim kho cov hmoov zoo puilty los ntawm kev txhim kho nws cov nplaum, cohesiveness thiab lwm yam khoom. Thaum xaiv cellulose cellulose kev ua kom muaj cov hmoov ua kom muaj hmoov, yuav tsum tau ceev faj tias yuav tsum tau coj los ua kom muaj txiaj ntsig zoo.
Muab cov lus qhia tshwj xeeb rau cov teeb meem uas yuav tsum tau them siab rau thaum xaiv cellulose ether rau patty hmoov.
Nco tseg # 1: Txiav txim siab hom ntawm cellulose ether
Muaj ntau yam sib txawv ntawm cov kws ua haujlwm hauv cellulose, suav nrog methylcellulose, ethylcellulose, hydroxyethylcellulose, thiab carboxymethylcellulose. Txhua hom cellulose ether muaj cov khoom tshwj xeeb uas ua rau nws haum rau cov ntawv thov tshwj xeeb. Yog li ntawd, ua ntej xaiv cellulose ether rau putty hmoov, nws yog qhov tsim nyog los txiav txim siab hom cellulose tsim rau hom putty hmoov tsim.
Piv txwv li, hydroxyethyl cellulose (HEC) yog qhov haum rau kev siv rau hauv putty hmoov vim tias nws txhim kho lub zog rheological ntawm cov hmoov putty. Hec thickens txoj kev daws teeb meem, txwv tsis pub sagging, thiab ua rau viscosity ntawm cov hmoov putty. Methylcellulose, ntawm qhov tod tes, tsis haum rau siv rau hauv hmoov putty vim tias nws tsis muaj tib qho thickening cov khoom raws li HEC.
Nco tseg # 2: txiav txim siab cov qhab-nees ether yuav tsum tau
Cov neeg muaj kev hais ua haujlwm cellulose muaj nyob rau hauv cov qib sib txawv nyob ntawm kev coj dawb huv thiab siab. Cov hom ntawm cellulose xav tau rau putty hmoov yuav tsum tau txiav txim siab raws li cov kev xav tau ntawm cov hmoov ua kom muaj.
Kev ua kom muaj kuab heev ntawm cellulose cov neeg ua kom muaj kev cuam tshuam ntau dua cov neeg hais tsawg dua vim tias lawv ua tau zoo ib yam kev ua tau zoo ntawm cov hmoov uas muaj sia. High-purity cellulose ether tsis muaj tshauv, nyob thiab lwm yam impurities uas cuam tshuam rau hmoov zoo putty.
Nco tseg # 3: Ntsuas cov solubility ntawm cellulose muaj kev pab
Cov neeg ua kom muaj tus neeg hais ua haujlwm yog soluble hauv dej, tab sis kev kawm ntawm solubility txawv nyob ntawm seb tus kheej cellulose ether. HydroxyPropenCellulose (HPC) yog ib qho piv txwv ntawm lub cellulose ether tias yog insoluble hauv dej; Hloov chaw, nws disperses yooj yim hauv dej.
Nws yog qhov tseem ceeb los txiav txim siab rau solubility ntawm cellulose siv nyob rau hauv putty hmoov los xyuas kom meej yooj yim hauv dej thiab tsis ua rau ib qho clumping lossis tsis sib xws hauv cov hmoov putty.
NCO TSEG # 4: Xav Txog Qhov Chaw Siv
Kev tsim kho qhov kub ntawm putty hmoov cellulose ether kuj tseem yog qhov kev txiav txim siab tseem ceeb. Txhua ntu ntawm cellulose ether muaj qhov ntsuas kub tshwj xeeb uas nws ua haujlwm zoo tshaj plaws. Yog li ntawd, nws yog qhov tseem ceeb los xaiv cov kws ua haujlwm cellulose uas tuaj yeem tiv taus cov kev siv kub ntawm cov hmoov txhuas.
Cellulose ether muaj zoo thermal stability thiab yog qhov tsim nyog rau siv nyob rau hauv putty hmoov vim tias nws yuav tsis muaj kev txwv lossis tsis txaus ntseeg siab. HydroxyPropyyl methylcellose (HPMC) yog ib qho piv txwv ntawm lub cellulose ether uas ruaj khov thiab ua haujlwm zoo hauv cov hmoov zaub mov.
Nco tseg # 5: Ntsuas kev cia khoom
Cov neeg hais kom lwm tus neeg muaj kev hais tsis raug kev hloov pauv hloov qhov kub thiab av noo; Yog li ntawd, lawv yuav tsum muab khaws cia raws cov mob tshwj xeeb kom tsis txhob muaj kev tsis txaus ntseeg. Cellulose Cov neeg hais ua neeg raug hais yuav tsum muab cia rau hauv qhov chaw qhuav nrog kev tswj kub thiab av noo kom ntseeg tau lawv ruaj khov.
Ruaj khu cellulose cov neeg muaj kev pab txhim kho kom zoo ntawm cov hmoov uas muaj putty, ua rau nws zoo ib yam nkaus, ruaj thiab siv tau.
Kev ceev faj # 6: Ua raws kev nyab xeeb ceevfaj
Thaum lub sij hawm tsim kev tsim khoom, kev ceev faj yuav tsum tau ua kom tiv thaiv kom tiv thaiv kev ua haujlwm raug cov neeg ua haujlwm cellulose. Thaum tuav cellulose cellulose muaj neeg muaj kev pab muaj xws li hnab looj tes tiv thaiv kev tiv thaiv, khawm kom tsis txhob muaj kev sib cuag nrog daim tawv nqaij, qhov muag, lossis ua pa.
Ib qho ntxiv, nws yog qhov tseem ceeb rau cov ntawv sau uas muaj cov cim qhia cellulis nrog cov kev phom sij ceeb toom thiab ua raws li cov kev phom sij ceeb toom kom tsis txhob muaj kev sib kis ib puag ncig.
Hauv kev xaus
Xaiv lub cellulose zoo ether rau putty hmoov yog qhov tseem ceeb kom tau txais cov txiaj ntsig zoo. Kev ceev faj yuav tsum tau coj thaum txiav txim siab txog hom thiab qib ntawm cellule etrability, ua kom muaj kev cia khoom cia kom zoo, thiab ua raws li kev ceev faj hauv qab kev nyab xeeb.
Noj cov kev ceev faj no tsis tsuas yog ua kom muaj cov hmoov tsis zoo, tab sis kuj tiv thaiv cov neeg ua haujlwm thiab ib puag ncig. Siv cov hmoov cellulose txoj cai, Putty hmoov tuaj yeem tsim kev nyab xeeb thiab ua tau zoo rau cov neeg siv khoom xav tau thiab muaj zog.
Lub Sijhawm Post: Sep-12-2023