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Hydroxyethyl Cellulose

Hydroxyethyl Cellulose
Hydroxyethyl Cellulose
Offer Type: Sell
Offer Post Time: 2009-09-03
Expiration Date: 2010-01-21
Details: Hydroxyethyl cellulose

Brand No Appe-arance Gram-mole repla-Cement
Value ( m ° S ) mois-ture (%) indiss-Olubility
(%) Pervio-usness of light (2%) NDJ-1 rotary viscometer mPa. S 2% 20 º Cwater solution
Viscosity range Spindle No. Rotary speed of spindle
H-50 powder 1.8-2.0 <6 <0.5 ¡Ý 80 <100 1 30
H-1000 powder 1.8-2.0 <6 <0.5 ¡Ý 80 800-1200 2 12
H-6000 powder 1.8-2.0 <6 <0.5 ¡Ý 80 4000-7000 3 12
H-10000 powder 1.8-2.0 <6 <0.5 ¡Ý 80 8000-12000 3 6
H-15000 powder 1.8-2.0 <6 <0.5 ¡Ý 80 13000-17000 3 6
H-20000 powder 1.8-2.0 <6 <0.5 ¡Ý 80 18000-24000 4 12
H-30000 powder 1.8-2.0 <6 <0.5 ¡Ý 80 26000-34000 4 12
H-40000 powder 1.8-2.0 <6 <0.5 ¡Ý 80 36000-44000 4 12
H-60000 powder 1.8-2.0 <6 <0.5 ¡Ý 80 55000-65000 4 6
Hydroxyethyl cellulose

Method A:
Putting in on production directly, the method is most simple and short time is meeded, the precedure is as follows.
1. Pour clear water into a big tub fitted with high pressure stirrer
2. At first, keep stiring slowly, then gradually and equally sieve CELLULOSE ETHER into solution
3. Do not stop stirring until all the granules are fully wetted.
4. Add antimildews and various additives such as pigment dispersing agent, ammonia water etc.
5. Do not put other ingredients of concerned formula and preceed to chemical reaction until all the CELLULOSE ETHER is thoroughly dissolved (viscosity of the solution is obviously increased)

Method B:
Prepare mother liquor for use.
The method is to prepare in advance high density mother liquor, then put it in product. Advantage of the method consists in flexibility, the liquor may be put in product directly, but suitable storage is needed. The procedure is similar to the steps (1)~(4) of the method A, the difference is no need of high pressure stirrer, only such a stirrer is needed as has enough power to keep CELLULOSE ETHER equally dispersing in solution. And stirring till entirely dissoled into viscouse solution. Please note antimildews must be put into the mother liquor as early as possible.

Method C:
Compounding into gruel-like substance for use
Since organic solvents are poor solvents for CELLULOSE ETHER, therefore these solvents may be used to pripare the gruel-like substance, the most often used organic solvents are ethylene glycol, propyl glycol and filming agent (such as adipic glycol or buty1 carbitol acetate). Ice water is also a poor solvent and hence also often used with organic liquid to prepare the gruel-like substance.

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