Sodium Carboxymethyl cellulose (CMC) yog anionic, txoj hlua ncaj, ib qho derivative ntawm ntuj cellulose thiab cloadoacetic acid los ntawm cov tshuaj kho tshuaj. Nws cov kev daws teeb meem aqueous muaj cov haujlwm ntawm thickening, cov tshuaj tiv thaiv, cov tshuaj pleev xim, luam yeeb, luam ntawv, khoom siv tshuaj lom neeg txhua hnub thiab lwm cov teb.

Sodium Carboxymethyl cellulose feem ntau yog cov hmoov zoo, muaj cov ntxhiab tsw tshwj xeeb, tuaj yeem ua rau cov dej tsw qab, tuaj yeem ua rau cov tshuaj uas muaj kuab heev nrog cov xim khov kho. Insoluble hauv cov kev daws teeb meem organic, ether, chloroform thiab benzene, tab sis tuaj yeem ua rau cov tshuaj qeeb, thiab cov kua aqueous muaj qee yam tshuaj viscosity. Cov khoom nyob hauv ib qho chaw dav dav yog qhov ruaj khov dua, vim tias nws muaj qee qhov dej nqus dej thiab cov av noo, tuaj yeem khaws cia rau lub sijhawm ntev.

① Cov Txheej Txheem Ntau Lawm

1. Cov Txheej Txheem Dej Nruab Nrab

Cov txheej txheem-thee yog cov txheej txheem ntau lawm hauv kev lag luam npaj cov sodium carboxymethyl cellulose. Hauv cov txheej txheem no, cov alkali cellulose thiab qhov kev daws teeb meem uas muaj cov tshuaj tiv thaiv oxygen pub dawb, tsis muaj cov tshuaj tiv thaiv organic.

2. Kaus Txoj Kev

Cov qauv siv hluav taws xob yog cov qauv organic cov organic, uas yog cov txheej txheem ntau lawm tsim raws li cov dej hauv nruab nrab yog cov tshuaj tiv thaiv kab mob nruab nrab. Cov txheej txheem ntawm kev sib dhos thiab etherification ntawm alkali cellulose thiab monochloroacetic acid nyob rau hauv ib organic kuab tshuaj. Raws li cov tshuaj tiv thaiv nruab nrab, nws tuaj yeem faib ua kneading txoj kev thiab ua luam dej slurry. Tus nqi ntawm cov kuab tshuaj organic siv nyob rau hauv txoj kev pulping yog qhov ntau ntawm cov kuab tshuaj muaj zog yog qhov piv ntawm qhov hnyav ntawm cov cellulose. Thaum sodium carboxymethyl cellulose tau npaj los ntawm kev ua luam dej slurry kev, cov kev tawm tsam yog nyob rau hauv lub kaw lus, yog li kev ua luam dej slurry yog tseem hu ua lwm txoj kev ncua.

3. Slurry Txoj Kev

Slurry txoj kev yog qhov tseeb thev naus laus zis los tsim cov sodium carboxymethyl cellulose. Slurry txoj kev tsis tuaj yeem tsuas yog tsim cov kev ua kom siab siab sodium carboxymethyl cellulose nrog kev hloov pauv ntawm kev hloov pauv siab thiab cov chav siab. Cov txheej txheem ntau lawm ntawm cov txheej txheem ntawm slurry yog kwv yees li nram no: cov kua txiv kab ntxwv hydropyl uas tau muab alkalized, thiab alkalizing kub yog hais txog 20 ℃. Tom qab cov khoom siv ua ntej, cov khoom siv tau rau txoj kev siv roj hmab ethopoofy, thiab cov roj hmab npau taws ntxiv, thiab qhov kub yog hais txog qhov kub yog li 65 ℃. Raws li cov khoom lag luam tshwj xeeb siv thiab cov kev xav tau zoo, lub sijhawm ua haujlwm ntawm lub sijhawm, tus nqi ntawm lub sijhawm uas muaj hnub nyoog tuaj yeem hloov kho.

② Daim ntawv thov

1. CMC tsis yog tsuas yog ib qho zoo emulsifieding stabilizer thiab cov tuab tuab hauv cov ntawv thov zaub mov, tab sis kuj tseem txhim kho cov khoom tsw thiab ncua sijhawm.

2. Nyob rau hauv cov xab npum, cmc tuaj yeem siv los ua kev tawm tsam tus neeg sawv cev relteposition, tshwj xeeb tshaj yog rau cov nyhuv hydrophibic fiber ntau, ua kom zoo dua cov roj carboxyyl fiber ntau.

3. Nyob rau hauv cov roj drilling tuaj yeem siv los tiv thaiv cov roj cov roj, tus nqi ntawm txhua cov roj ua kom zoo yog 2 ~ 3t ntiav wells, tob tob 5 ~ 6t.

4. Siv rau hauv kev lag luam textile raws li cov neeg sawv cev sizing, luam ntawv thiab tawg slurry thickener, textile luam ntawv thiab stiffening tiav.

5. Siv raws li txheej los tiv thaiv tus neeg sawv cev, dispersive, cov nplaum, tuaj yeem ua rau cov xim muaj zog, yog li cov xim tsis sib xws, tab sis kuj siv hauv kev ua kom muaj sia.

6. Raws li cov flocculant hauv kev tshem tawm calcium ntawm calcium ions dua sodium gluconate zoo dua, raws li kev sib pauv lub peev xwm txog li 1.6ml / g.

7. Hauv daim ntawv kev lag luam siv ua cov ntawv sizing tus neeg sawv cev thiab ntub dej ntawm cov ntawv thiab cov roj nqus thiab dej tsis kam thiab dej tsis kam.

8. Raws li cov tshuaj pleev ib ce hauv cov tshuaj pleev ib ce, siv los ua cov tshuaj txhuam hniav txo qis tshuaj txhuam hniav, nws koob tshuaj yog li 5%.

Kev lag luam wholesale carboxymethyl cellulose (CMC) chaw tsim tshuaj paus thiab chaw muag khoom | EvenBright (Cnchemist.com)