Hnub Tim:9,Jan,2023

Cov dej reducers yog dab tsi?

Dej Reducers (xws li Lignosulfonates) yog hom admixture uas tau ntxiv rau pob zeb ua kom sib xyaw ua ke. Dej Reducers tuaj yeem txo cov ntsiab lus dej los ntawm 12-30% yam tsis muaj kev cuam tshuam nrog kev ua haujlwm lossis cov tshuab muaj zog ntawm cov pob zeb ua kom muaj zog). Muaj lwm cov ntsiab lus rau cov dej txo qis, uas yog superplasticizers, cov yas lossis cov dej muaj roj ntau dua (hrwr).

Hom dej-txo cov lus admixtures

Muaj ntau hom dej-txo cov lus admixtures. Cov tuam txhab tsim khoom muab cov tuam txhab uas muaj sib txawv thiab cov kev faib tawm rau cov kws tshaj lij no xws li cov khoom pov thawj dej, densifiers, kev ua haujlwm, thiab lwm yam.

Feem ntau, peb tuaj yeem categorize dej-reducers mus rau hauv peb hom raws li lawv cov tshuaj lom neeg muaj pes tsawg leeg (raws li hauv lub rooj 1):

Lignosulfonates, Hydroxycarboxylic acid, thiab hydroxylated polymers.

Nyob qhov twg los?

Cov ntaub ntawv ua haujlwm yog cov khoom siv uas sawv cev rau cov kwv yees li 20% ntawm cov kab sib xyaw ntoo. Thaum lub sijhawm ua cov txheej txheem rau kev tsim cov ntawv los ntawm cov ntoo, suav nrog cov khoom lag luam uas muaj cov khoom siv ntawm Lignin, ntau yam carbohydrates (qab zib) thiab dawb sulfurous acid los yog sulfates.

Tom ntej novrumization, nag lossis daus ua ntau yam ntawm cov kab ke, xws li cov txheej txheem nruab nrab, xws li hom thiab hnub nyoog ntawm cov ntoo siv Pulp Feststock.

Lignosulfonates li dej-reducers hauv cov pob zeb

Lignosulfonate SuperPasticizer koob tshuaj feem ntau yog 0.25 feem pua, uas tuaj yeem ua rau kev txo cov dej kom txog ntawm 920,30.30%). Raws li tau siv nyob rau hauv cov tshuaj kom zoo, ua vaj tse ua kom zoo dua los ntawm 15-20% thaum piv rau cov pob zeb siv. Lub zog ntawm 20 txog 30 feem pua ​​tom qab 3 hnub, los ntawm 15-20 feem pua ​​tom qab 7 hnub, thiab los ntawm tib tus nqi tom qab 28 hnub.

Tsis tas hloov cov dej, qhob tej zaum yuav ntws dawb, ua kom yooj yim dua ua haujlwm nrog (piv txwv li nce zuj zus).

Los ntawm kev siv ib qho tonne ntawm Lignosulfonate Superplasticizer hmoov tsis txhob ua kom xisas, koj yuav txuag tau cov pob zeb ua kom zoo ib yam thaum ua kom tiav.

Nyob rau hauv lub xeev txheem, pob zeb sib xyaw nrog tus neeg sawv cev no yuav ncua lub sij hawm kub ntau tshaj li peb teev, thiab lub sijhawm teem sijhawm ntawm cov pob zeb ntau tshaj peb teev los siv cov pob zeb siv. Qhov no yog qhov zoo rau kev tsim kho lub caij ntuj sov, cov khoom lag luam qhob thauj, thiab loj pob zeb.

Lignosulfonate SuperPasticizer nrog Micro-Entraining tuaj yeem txhim kho cov qhob qhov kev ua tau zoo ntawm khov-yaj impermeabery.