Carboxymethyl cellulose CMC-shahaadada warqad samaynta

Carboxymethyl cellulose CMC-Fasalka Warqad-samaynta Sawirka

Sharaxaad Gaaban:

Falcelinta Carboxymethylation waa mid ka mid ah tignoolajiyada etherification.Ka dib markii Carboxymethylation of cellulose, carboxymethyl cellulose (CMC) waa la helay.Xalka aqueous wuxuu leeyahay hawlaha dhumucdiisuna, filim-samaynta, bonding, haynta biyaha, ilaalinta kolloidal, emulsification iyo hakinta.Waxa si weyn looga isticmaalaa batroolka, cuntada, dawooyinka, warshadaha dharka iyo waraaqaha.Waa mid ka mid ah ethers cellulose-ka ugu muhiimsan. Iyadoo khibradeena muddada dheer ee ganacsiga alaabta kiimikada, ma waxaan ku siinaynaa talo xirfadeed oo ku saabsan alaabta iyo xalalka loo habeeyey ujeedadaada gaarka ah.Waxaan ku faraxsanahay inaan kaa caawino inaad dooratid alaabta kugu habboon. Kaliya dhagsii si aad u hesho codsiyada warshadahaaga: CMC ee cuntada, batroolka, daabacaadda iyo dheeha, ceramics, dawada cadayga, faa'iidada sabayn, batari, dahaarka, budada dhejiska ah iyo samaynta waraaqaha.

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Faahfaahinta Alaabta

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Qaabka warqadda ee CMC: NX-1/3/5 , NX-10/30/100, NX-150/300/700
CMC waa wax lagu daro daahan wanaagsan, kaas oo wanaajin kara hantida siman ee daahan, oo uu leeyahay adhesion aad u fiican iyo hantida filim samaynta.Waxay ku habboon tahay dahaarka maaddooyinka adag ee sarreeya iyo daahan xawaaraha sare leh.
CMC waxaa loo isticmaalaa cabbirka dusha sare, kaas oo si wax ku ool ah u wanaajin kara sinnaanta, xoogga iyo xawliga hawada ee warqadda iyo helitaanka daabacaad wanaagsan.
CMC waxaa lagu dabaqaa dhamaadka qoyan ee mishiinka warqadda sida kala firdhiye iyo sii xoojiye si loo hagaajiyo labbiska iyo xoogga warqadda, hagaajinta sii haynta nidaamka, iyo bixinta heer cayiman ee cabbirka.

CMC-Codsiga Warshadaha Warqadaha

1. Doorka ugu weyn ee CMC ee daahan midabka
- Xakamaynta iyo hagaajinta rheology ee dahaarka iyo kala firdhinta midabka si loo hagaajiyo nuxurka adag ee dahaarka;
- Ka dhig dahaarka inuu yeesho pseudoplasticity oo hagaaji xawaaraha daahan;
- Kobcinta xajinta biyaha ee daahan oo ka hortag u guuritaanka xabagta biyaha ku milma;
- Waxay leedahay hanti-samaynta filimka wanaagsan waxayna wanaajisaa dhalaalka dahaarka;
- Hagaajinta heerka haynta ee dhalaalaysa dahaarka iyo hagaajinta cadaanka warqadda;
- Hagaajinta waxqabadka saliidda ee dahaarka, wanaaji tayada dahaarka iyo sii dheeraynta nolosha adeegga qashinka.
2. Doorka ugu weyn ee CMC ee ku darista slurry
- Hagaajinta waxtarka saxarka, kor u sifeynta fiber-ka, soo gaabin waqtiga garaacista;
- Hagaajin kartida saxarka, si siman u kala firdhi fiber-ka, wanaaji mashiinka waraaqaha "waxqabadka koobiyeynta", sii wanaaji bogga samaynta;
- Hagaajinta heerka haynta waxyaabaha lagu daro ee kala duwan, buuxinta iyo fiilooyinka wanaagsan;
- Kordhi xoogga isku xidhka u dhexeeya fiilooyinka, hagaajinta sifooyinka jireed ee waraaqaha;
- Loo isticmaalo wakiilka xoogga qalalan iyo qoyan, waxay hagaajin kartaa qalalan iyo xoogga qoyan ee warqadda;
- Ka ilaali rosin, AKD iyo wakiilada cabbirka ee kale ee saxarka, kor u qaad saamaynta cabbirka.
3. Doorka ugu weyn ee CMC ee cabbirka dusha sare
- Waxay leedahay rheology wanaagsan iyo hantida sameynta filimada;
- Iska yaree daloolada waraaqaha oo wanaaji caabbinta saliidda warqadda;
- Kordhi dhalaalka iyo dhalaalka warqadda;
- Kordhi qallafsanaanta iyo jilicsanaanta warqadda oo xakamee lalaabada;
- Hagaajinta xoogga dusha oo xidho caabbinta warqadda, yarayso timaha iyo luminta budada, oo wanaaji tayada daabacaadda.

Qiyaasta Faahfaahinta

Qadarka lagu daro (%)
NX-1/3/5	0.3-1.5%
NX-10/30/100	0.2-1.0%
NX-150/300/700	0.1-0.8%
Haddii aad u baahan tahay inaad habayso, waxaad bixin kartaa qaacido iyo habraac faahfaahsan.

Tilmaamayaal
	NX-1/3/5	NX-10/30/100	NX-150/300/700
midab	budo jaale khafiif ah ama qayb	budo jaale khafiif ah ama qayb	budo jaale khafiif ah ama qayb
biyaha ku jira	10.0%	10.0%	10.0%
PH	6.0-8.5	6.0-8.5	6.0-8.5
Darajada beddelka	0.8	0.8	0.8
sodium chloride	8%	8%	8%
daahirnimo	80%	80%	90%
Viscosity (b) 1% xal aqueous ah	5-100mPas	100-2000mPas	2000-8000mPas