Melamine Dej Reducer
Oct 25, 2022
Melamine dej reducer
--Los ntawm Baidu Encyclopedia
Nws yog cov khoom ntawm sulfonation ntawm melamine los ntawm sulfuric acid thiab condensation nrog formaldehyde, yog li cov tshuaj lub npe yog sulfonated melamine formaldehyde resin, uas belongs rau anionic surfactants. Cov tsos ntawm hom dej txo tus neeg sawv cev no yog cov hmoov dawb, uas yooj yim soluble hauv dej, muaj kev sib cais zoo rau cov ntaub ntawv hmoov, muaj cov dej txo qis, thiab muaj cov dej ntws zoo thiab kho tus kheej.
Txoj kev npaj: Lub hauv paus ntsiab lus ntawm AsM melamine superplasticizer yog ua kom formaldehyde thiab melamine tsim cov pa roj carbon zoo nyob rau hauv ib qho alkaline nruab nrab, thiab tom qab ntawd condense nyob rau hauv ib tug acidic nruab nrab los mus txuas ib tug ntev-chain qauv, thiab tib lub sij hawm muab sulfamic acid ua. cov qauv molecular Muaj qee qhov nyiaj ntawm polar sulfonic acid radicals, thiab qhov nce ntxiv. Txij li cov khoom siv tshuaj lom neeg ntawm cov tshuaj koom nrog hauv cov tshuaj tiv thaiv kuj tseem muaj zog, cov tshuaj tiv thaiv kub, cov tshuaj tiv thaiv ceev thiab qhov sib piv ntawm cov reactants muaj feem cuam tshuam rau kev ua haujlwm ntawm cov khoom. Yog li ntawd, nws yog ib qho tseem ceeb kom nrhiav tau qhov tsim nyog piv ntawm cov reactants, cov tshuaj tiv thaiv kub thiab cov tshuaj tiv thaiv ceev. Qhov feem ntawm cov khoom xyaw yog: melamine: formaldehyde: sulfamic acid=1: (3.5-4.0): (2-2.5); cov tshuaj tiv thaiv kub yog tswj ntawm 75-80 degree hauv thawj theem thiab 45-60 nyob rau theem thib ob. degree; lub sij hawm tshuaj tiv thaiv yog tswj ntawm 1.5-3 h, cov khoom tau txais muaj kev ua tau zoo heev thiab tus nqi qis tshaj plaws. Nyob rau hauv cov txheej txheem ntau lawm, los ntawm kev ntxiv cov cuab yeej reflux, ib lub lauj kaub series cov tshuaj tiv thaiv yog pom tau, uas ua kom yooj yim rau cov txheej txheem tsim khoom thiab tshem tawm cov tiam ntawm "peb cov khib nyiab".
Daim ntawv thov txheej xwm: AsM melamine series high-efficiency dej-txo tus neeg sawv cev cov khoom tau siv rau prefabricated tivthaiv factories, coj mus muag qhob mixing nroj tsuag thiab lwm yam units. Cov neeg siv ntawm lub Hoobkas feem ntau tshaj tawm tias kev ua haujlwm ntawm cov pob zeb ua haujlwm tau zoo heev, thiab lub sij hawm ua kom sov ntawm cov khoom uas yuav tsum tau steamed yog luv heev; cov neeg siv ntawm cov nroj tsuag batching kuj qhia tias cov khoom muaj zog adaptability rau cov cement, uas tuaj yeem txhim kho cov pob zeb zoo vim yog cov khoom tsis zoo. Qhov teeb meem ntawm kev ua haujlwm tsis zoo thiab lub twj tso kua mis tau txhim kho zoo heev, thiab qhov teeb meem ntawm kev tso dej ntawm qhov siab ntawm 150 m tau raug daws. AsM melamine series superplasticizer tuaj yeem siv ib leeg, thiab nws tsim nyog rau kev siv sib xyaw hauv Taiwan. Ib qho kev ntsuam xyuas qhia tau hais tias ASM melamine superplasticizer tuaj yeem siv ua ke nrog lwm cov khoom siv superplasticizers, thiab nws qhov kev ua tau zoo tau dhau los ua ntau dua. Tom qab recombination nrog qhov sib piv kom zoo, cov nyhuv txo cov dej yuav tshwm sim superimposed, tshwj xeeb tshaj yog rau cov pob zeb uas muaj cov khoom siv cementing ntau, qhov tshwm sim ntawm kev sib tsoo thiab hauv qab yuav tsis tshwm sim ntxiv lawm, yog li lub zog siab thiab kev ua haujlwm siab yog tsim rau cov kev npaj. Yog tias cov khoom ntxiv nrog lignin lossis hydroxycarboxylic acid retarder, tus neeg sawv cev siv nrog kev ua haujlwm zoo tuaj yeem sib xyaw. Kev xa khoom tau zoo heev.