Methyl 2-hydroxyethyl cellulose

Details:

CAS 9032-42-2 Methyl 2-Hydroxyethyl Cellulose MHEC Industrial Grade Methyl Hydroxyethyl Cellulose

 

Product Description

Methyl 2-Hydroxyethyl Cellulose: Description

Methyl 2-Hydroxyethyl Cellulose (MHEC) is a non-ionic, water-soluble cellulose derived from natural cellulose. It is chemically modified by introducing methyl and 2-hydroxyethyl groups to the cellulose backbone, which improves its solubility, thickening, and film-forming properties. MHEC is widely used in construction, paints, ceramics, and personal care products, primarily as a binder, thickener, stabilizer, and water-retention agent. It is especially valued for its excellent workability, compatibility with other materials, and thermal stability.

 

Technical Data

Property	Value
Chemical Name	Methyl 2-Hydroxyethyl Cellulose
Chemical Formula	Cellulose backbone with -CH? (methyl) and -CH?CH?OH (hydroxyethyl) substituents
CAS Number	9032-42-2
Appearance	White or off-white powder
Odor	Odorless
pH (1% solution)	5.0–8.0 (neutral to slightly alkaline)
Solubility	Soluble in water; insoluble in organic solvents
Moisture Content	≤5%
Viscosity (2% solution, 20°C)	400–200,000 mPa·s (depending on grade)
Density	~0.3–0.6 g/cm³ (bulk density)
Thermal Gelation Temperature	~60–90°C (depending on substitution degree)
Degree of Substitution (DS)	1.1–2.0 (number of methyl groups per glucose unit)
Molar Substitution (MS)	0.1–0.4 (number of hydroxyethyl groups per glucose unit)
Particle Size	Typically ≤200 µm

 

Key Features

1. Water Solubility:

   • MHEC dissolves easily in cold and hot water, forming clear or slightly turbid solutions.

2. Thickening and Rheology Modification:

   • Provides excellent thickening properties and enables control over the viscosity and flow behavior of formulations.

3. Water Retention:

   • Prevents premature drying in construction materials like cement and plaster, improving workability and adhesion.

4. Film-Forming Ability:

   • Forms tough, flexible, and transparent films, which are useful in coatings and adhesives.

5. Thermal Stability:

   • Stable at high temperatures, with gelation occurring at specific temperatures, depending on the degree of substitution.

6. Non-Ionic Nature:

   • Compatible with a wide range of ionic and non-ionic materials, offering versatility in diverse formulations.

7. Biodegradability:

   • Derived from natural cellulose, MHEC is biodegradable and environmentally friendly.

8. Salt and Electrolyte Tolerance:

   • Maintains performance in the presence of salts and electrolytes, enabling use in diverse environments.

 

Applications

1. Construction:

   • Cement-Based Products: Acts as a water-retention agent, thickener, and binder in tile adhesives, mortars, and plasters to prevent cracking and improve workability.
   • Gypsum-Based Products: Improves adhesion and surface finish in gypsum plasters and fillers.
   • Self-Leveling Compounds: Provides anti-sagging and viscosity adjustment properties.

2. Paints and Coatings:

   • Functions as a thickener, stabilizer, and film former in water-based paints and coatings, enhancing viscosity, brushability, and leveling.

3. Personal Care Products:

   • Used in shampoos, lotions, and creams as a thickener, stabilizer, and emulsifier to provide a smooth texture and enhance product stability.

4. Ceramics:

   • Acts as a binder and plasticizer in ceramic glazes and green bodies, improving shape retention and mechanical strength.

5. Adhesives:

   • Used in wallpaper pastes and other adhesives for its thickening, water retention, and bonding properties.

6. Pharmaceuticals:

   • Serves as a binder and controlled-release agent in tablet formulations and other pharmaceutical products.

7. Food Industry (limited use):

   • Sometimes used as a stabilizer or thickener in specific food applications.

8. Detergents:

   • Enhances viscosity and stabilizes liquid detergent formulations.

Packaging	1kg-15kg packing	2 PE bag inside + 1 foil bag outside in carton
	25kg-50kg packing	2 PE bag inside + 1 foil bag outside in drum
	Other packing	Customized packing
Drum Size	D38cm*H60cm or customized, 25 kg/ drum
Shipping	1-50kg	International Express	Fast and convenient	Door to Door
	50-500kg	Air Transportation	Fast and cheap	To Air Port
	Above 500kg	Sea Transportation	Cheap and convenient	To Port

 

 

 

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