Polyacrylamide(PAM), raws li tus neeg sawv cev kho dej tseem ceeb, tau siv dav hauv ntau yam kev lag luam. Txawm li cas los xij, kev rhuav tshem PAM tuaj yeem yog qhov nyuaj rau ntau tus neeg siv. PAM cov khoom siv hauv cov dej khib nyiab feem ntau tuaj hauv ob hom: hmoov qhuav thiab emulsion. Kab lus no yuav qhia txog txoj kev sib cais ntawm ob hom PAM kom meej kom ntseeg tau tias cov neeg siv tau txais txiaj ntsig zoo tshaj plaws hauv kev ua haujlwm tiag tiag.
Txoj kev sib cais ncaj qha yog txoj kev yooj yim tshaj plaws thiab feem ntau PAM dissolution txoj kev. Txoj kev no yog tsim rau PAM hmoov nrog qis molecular hnyav thiab yooj yim rau yaj. Nov yog cov kauj ruam tshwj xeeb:
Npaj Lub Thawv: Xaiv lub thawv yas huv, qhuav, ruaj khov uas loj txaus los tuav cov PAM hmoov thiab dej. Tsis txhob siv cov thawv hlau lossis cov thawv uas muaj hlau stains.
Ntxiv Solvent: Ntxiv cov dej kom tsim nyog.
stirring: Pib lub stirrer. Thaum stirring, xyuas kom meej tias lub stirrer yog tag nrho submerged nyob rau hauv cov tshuaj kom tsis txhob npuas. Lub stirring ceev yuav tsum tsis txhob siab dhau kom tsis txhob tawg ntawm PAM molecular saw.
Ntxiv PAM Hmoov: Maj mam ntxiv cov hmoov PAM uas xav tau rau hauv lub thawv thaum nplawm maj mam kom tsis txhob ya hmoov av. Txuas ntxiv mus do cov tshuaj kom cov PAM hmoov sib npaug sib npaug hauv cov kuab tshuaj.
Tos rau Dissolution: Cia nplawm thiab saib xyuas qhov kev sib cais ntawm PAM hmoov. Feem ntau, nws yuav tsum tau nplawm rau 1 mus rau 2 teev kom txog thaum PAM hmoov yog yaj tag.
Txheeb xyuas qhov Solubility: Tom qab ua tiav qhov kev sib cais, txiav txim siab seb nws puas tau yaj tag los ntawm kev tshuaj xyuas cov pob tshab lossis qhov ntsuas qhov ntsuas ntawm qhov kev daws teeb meem. Yog hais tias tej yam uas tsis tau dissolved los yog clumps tshwm, txuas ntxiv stirring kom txog thaum yaj tag. Yog tias qhov hnyav molecular ntawm PAM siab dhau lawm thiab kev sib cais qeeb heev, nws tuaj yeem ua kom sov kom tsim nyog, tab sis nws yuav tsum tsis pub tshaj 60 ° C.
Npaj Lub Thawv thiab Cov Cuab Yeej: Xaiv lub thawv loj txaus kom ntseeg tau tias muaj chaw txaus rau kev sib tov. Muaj lub stirrer los yog nplawm nplaum npaj kom paub meej tias cov tshuaj sib tov kom huv si.
Npaj cov tshuaj: Ntxiv dej thiab PAM emulsion ib txhij, thiab pib lub stirrer ib txhij los xyuas kom meej tias cov emulsion thiab dej yog tag nrho tov.
Tswj qhov kawg Concentration: Qhov kawg concentration ntawm PAM emulsion yuav tsum tau tswj ntawm 1-5% kom ntseeg tau qhov zoo tshaj plaws flocculation nyhuv. Yog tias koj xav tau kho qhov concentration, ntxiv dej ntxiv lossis nce PAM emulsion.
Ntxiv stirring: Tom qab ntxiv PAM emulsion, txuas ntxiv stirring cov tshuaj rau 15-25 feeb. Qhov no pab PAM molecules tag nrho disperse thiab yaj, kom ntseeg tau tias lawv txawm faib nyob rau hauv dej.
Tsis txhob sib zog ntau dhau: Txawm hais tias kev sib xyaw kom zoo yuav pab yaj PAM, kev sib xyaw ntau dhau yuav ua rau PAM cov molecules degradation, txo nws cov nyhuv flocculation. Yog li ntawd, tswj lub stirring ceev thiab lub sij hawm.
Cia thiab Siv: Khaws cov tshuaj PAM yaj hauv qhov chaw tsaus, qhuav, kom ntseeg tau tias qhov kub thiab txias yog qhov tsim nyog. Tsis txhob tshav ntuj ncaj qha los tiv thaiv PAM degradation. Thaum siv, xyuas kom meej qhov sib xws ntawm kev daws kom tsis txhob cuam tshuam cov nyhuv flocculation vim qhov tsis sib xws.
Post lub sij hawm: Aug-22-2024