Thickeners

Liquid thickeners and rheol additives

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Cellulose thickeners

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Hydroxyethyl Cellulose

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CELLLOSIZE™ QP 300 HEC

Hydroxyethyl Cellulose CELLOSIZE™ QP 300 (HEC)is a cellulose polymer with a medium to low molecular weight. The product of the brand QP 300 is intended for use as a protective colloid and for thickening water-based paints. The typical usage rate of CELLOSIZE™ QP 300 in the emulsion polymerization process of vinyl and acrylic monomers, resulting in latexes for decorative paints, is 2 wt% of the total monomer mass (in vinyl and vinyl-acrylic formulations), and slightly lower for acrylic fishing recipes. The almost newtonian rheological properties of CELLOSIZE™ QP 300 aqueous solutions make it the ideal thickener for water-based paints of the highest quality. Ether gives paints excellent fluidity and leveling characteristics. The typical content of CELLOSIZE™ QP 300 in water-based paints is 0.3-0.7%. The product is also used as a water-retaining additiveto cements.

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Viscosity of 2% solution (according to Brookfield): 300-400 MPa*s

Water insoluble residue: Max. 0.07%

Volatile Compounds Content: Max. 5.0%

pH of 2% solution: 6.0 - 7.0

Hydration time buffer solution pH 7.2:5 to 15 minutes

Particle size passing through a sieve with cells No. 20: Min. 98.0%

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HYDROXYETHYL CELLULOSE (GETZ)

Chemical Name:Hydroxyethyl Cellulose (HEC)

CAS No.:9004-62-0

Acronym:HЕC - GETZ

Hydroxyethyl cellulose esters are easily soluble in cold water and are used as water-retaining additives, thickeners, binder stabilizers and fillers in aqueous medium, as dispersants, emulsifiers and plasticizers in construction industry, dry mix production, water-based dispersion paints and varnishes. Depending on the tasks, hydroxyethyl cellulose esters with different viscosity are used:

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The marking “S” is used for ordinary GEC marks.

Marking “SE” is used for special microorganism-resistant GEC brands.

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Applications of Hydroxyethyl Cellulose:

  • Production of water varnishes and paints
  • Cement-based adhesives and plasters
  • Repair mixtures based on cement
  • Cement-based grout
  • Mortars for masonry
  • Gypsum-based adhesives
  • Gypsum plasters
  • Gypsum-based crack mixtures and fillers
  • Manufacture of ceramics and polymerization of polyvinyl chloride.

Packing of Hydroxyethyl Cellulose:

The HEC product is supplied in multilayer paper bags of 25 kg with an inner plastic liner. Store in hermetically sealed containers or in waterproof bags.

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Methylhydroxyethyl cellulose (Walocel)

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Cellulose from thickening of alcohol solutions and rinses

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METHOCEL*311 cellulose ester— this is a new product of the spectrum of cellulose derivatives produced by DAU. It has a high solubility in a wide range of organic solvents, as well as in water. Due to the reliable control of particle size, METHOCEL*311 cellulose ether aracteric has good dry fluidity, low dust formation rate, and easy dispersion in water and organic solvents without forming lumps.

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METHOCEL*311has been developed purposefully for use in formulations that require a thickener with controlled solubility in both water and organic solvents. The data from Tables 1 and 2 demonstrate that this novel cellulose ester provides excellent thickening of solvents in both methylene chloride washes and other formulations that do not contain methylene chloride.

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Appearance:Cream-colored granules

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Brookfield viscosity:

In 95% methanol (MeOH):500-650 MPa*s

In 95% ethanol (EtOH):600-900 MPa*s

In methylene chloride (MeCi2):7500-10000 MPa*s

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Moisture content (in factory packaging): Max. 8.0%

Salt content: Max 1.5%

Particle Size:100-500 microns

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Carboxymethyl cellulose