Yuav ua li cas Polydadmac (poly diallyldimethylammonium chloride)

Vim li cas thiaj xaiv Polydadmac?

Raws li Tuam Tshoj lub papermaking tau ntev lawm dominated los ntawm graminaceous cog fiber ntau raw cov ntaub ntawv, thiab herbaceous cog fibers yog luv luv, nrog siab cov ntsiab lus ntawm heterocytes, nyom pulp muaj tsawg tuav thiab tsis zoo dej pom nyob rau hauv papermaking txheej txheem.

Polydadmac tuaj yeem txhim kho qhov teeb meem ntawm kev khaws cia qis thiab dej tsis zoo hauv cov txheej txheem papermaking, txhim kho kev tsim khoom thiab kev siv cov khoom siv raw, txo tus nqi ntawm tons ntawm ntawv thiab ib puag ncig muaj kuab paug.Polydadmac tseem tuaj yeem txhim kho cov dej pom kev ua haujlwm ntawm cov ntaub so ntswg thiab tsim cov ntawv ntawv.

Kab lus no tshawb xyuas cov adsorption, tuav, thiab pom cov yam ntxwv ntawm Polydadmac nrog qhov sib txawv molecular hnyav raws li cov khoom ntxiv ntawm cov bleached reed pulp, thiab tau txais cov lus xaus hauv qab no.

1.Adsorption ntawm Polydadmac ntawm Reed Pulp

Qhov me me qhov hnyav ntawm Polydadmac, qhov ntau dua qhov kev txo qis hauv adsorption nrog nce ntxiv ntawm cov koom haum pab, uas tej zaum yuav yog vim lub fact tias qhov me me molecular hnyav ntawm Polydadmac, muaj peev xwm mus ntes anions ntau dua.Qhov tsawg dua polydadmac yuav tsum tau rau tib tus nqi ntawm anion nyob rau hauv ib tug saturated system.

2.Filtering nyhuv ntawm Polydadmac

Nrog rau qhov ntau npaum li cas ntawm polydadmac, qhov pom kev pom zoo yuav txo qis thiab tom qab ntawd nce, thiab qhov pom pom tau ze rau lossis txawm tshaj li ntawm qhov khoob thaum cov nyiaj ntxiv mus txog thiab ntau dua 0.8%.Qhov no txhais tau hais tias ntau dhau Polydadmac tsis tuaj yeem pab pom, tab sis ua rau cov dej pom ntawm cov tawv nqaij.Qhov ntawd txhais tau hais tias sib txawv molecular hnyav Polydadmac muaj cov nyhuv lim zoo dua ua ntej lawv saturated tus nqi tsis zoo rau ntawm cov tawv nqaij fiber ntau.

3.Retention effect ntawm Polydadmac

Raws li qhov ntau npaum ntawm Polydadmac nce, cov dej dawb concentration ntawm reed pulp maj mam txo ua ntej, thiab tom qab ntawd nce ntxiv.Qhov kev tshawb fawb no qhia tau hais tias ntxiv polydadmac rau reed pulp tuaj yeem txhim kho qhov khaws cia ntawm cov fibers luv luv thiab cov khoom zoo thiab kev siv cov khoom siv raw, thiab txo cov dej ntws tawm.Nws tau pom tias qhov kev pom zoo ntawm polydadmac tsis cuam tshuam los ntawm lawv qhov hnyav molecular;Qhov me me ntawm qhov hnyav molecular ntawm polydadmac, qhov zoo dua cov nyhuv tuav.Tab sis qhov sib txawv tsis pom tseeb, thiab qhov sib txawv molecular hnyav polydadmac muaj qhov cuam tshuam zoo rau ntawm qhov chaw ntawm cov ntaub so ntswg saturated ua ntej cov nqi tsis zoo tshwm sim.

Xaus:

1.Polydadmac nrog qhov sib txawv molecular hnyav muaj qhov pom zoo thiab tuav cov nyhuv ntawm reed pulp;
2.Nws zoo dua pom thiab tuav cov teebmeem tau ua tiav thaum tus nqi ntawm polydadmac siv tsawg dua li tus nqi tsis zoo ntawm qhov chaw ntawm cov ntaub so ntswg saturated;

3.Low molecular hnyav polydadmac muaj zoo tuav nyhuv.High molecular hnyav muaj ib tug zoo filtering nyhuv.Txawm li cas los xij, tsis muaj qhov sib txawv tseem ceeb hauv nws cov txiaj ntsig hauv kev pab pom thiab khaws cia.