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Composition of Polyglykol M 4000:
Polyethylenglycolmonomethylether
CH3(OCH2CH2)nOH n = about 90
CAS Number: 9004-74-4
Product properties of Polyglykol M 4000:
Polyglykol M 4000 is a waxy white to slightly yellowish solid at room temperature with only very light smell.
Polyglykol M 4000 is available as melt supplied in heated tank truck or as remeltable solid in steel drums.
Polyglycol M 4000 is soluble in water and common used organic solvents like Aceton, Methanol.
Polyglykol M 4000 can be considered as high molecular alcohol and therefore displays typical chemical reactions of alcohols.
Polyglykol M 4000 is a linear, mono hydroxy-functional polyethylene glycol monomethyl ether (M-PEG) that is completely water soluble.
Polyglykol M 4000 is a raw material for 3rd generation superplasticizers.
Benefits of Polyglykol M 4000:
Polyglykol M 4000 has a low diol content to limit formation of crosslinking diesters.
Polyglykol M 4000 is completely water soluble.
PRODUCT FUNCTION:
Intermediate
APPLICATIONS:
Lubes and Greases
Industrial Lubrication
Paint additive manufacturing
Construction
Grinding Aids
Concrete Admixture
Dry mix mortars
Plaster Boards
Superplasticizer
Molar mass [g/mol]: 3500-4770
Diol concentration [area % HPLC]: < 1.5
Hydroxyl value [mg KOH/g]: 11.8-16.0
Solidification point [°C] : approx. 50
Viscosity at 50°C [mm³/s]: approx. 140
Storage of Polyglykol M 4000:
When stored in a cold, dry place in a closed container Polyglykol M 4000 can be kept for at least two years.
Melted Polyglykol M 4000 should be stored under nitrogen at a maximum temperature of 80°C.
Applications of Polyglykol M 4000:
M-type polyglycols are used for a wide variety of chemical reactions.
With isocyanates and polyester they act as endcapping and hydrophilic component.
When reacted with unsaturated monomers like acrylic or methacrylic acid esters are formed which can be copolymerisized in order to increase hydrophilicity and improve dispersing properties of polymers in water.
In the USA some M-type polyglycols are used for pharmaceutical applications.
Product data of Polyglykol M 4000:
consistence at 20°C / wax - like
water content (DIN 51777) / % w/w / max. 0.5
colour Hazen colour (10 % w/w in water) (EN 1557) / max. 30
pH (5 % w/w in water) (DIN 19268) / 5 – 7
hydroxyl number (DIN 53240) / mg KOH/g / 15.0 – 17.0
molecular weight / g/mol / 3300 - 3740
pour point (ISO 3016) / °C / about 55
Product properties of Polyglykol 4000:
The physical and chemical properties of polyethylene glycols are mainly determined by the two hydroxyl end groups, the ether groups as well as the molecular weight.
Polyglykol 4000 is a yellowish wax-like solid at room temperature.
Polyglykol 4000 is soluble in water and polar organic solvents like acetone or methanol.
Polyglykol 4000 is insoluble in pure hydrocarbons.
Polyglykol 4000 shows typical chemical reactions of alcohols/diols and a very low evaporation rate.
The solidification point of Polyglykol 4000 is about 56 °C, the solidification point of Polyglykol 4000 M 50 about -10 °C.
Industrial Applications of Polyglykol 4000:
Due to their physical and chemical properties polyethylene glycols are used for a wide variety of applications as:
-Reactant
Reactive diol/polyether component in polyester or polyurethane resins
-Solvent / Humectant / Plasticizer
Paper, wood, cellulose films, inks, paints, coatings, adhesives, sealants, concrete
-Release agent / Lubricant
mould release agent for rubber and elastomer processing, lubricant formulations, metal working fluids
-Binder for ceramics
-Component of auxiliaries for fiber, textile and leather processing
-Heat transfer medium
Shipping and Storage of Polyglykol 4000:
Polyglykol 4000 can be supplied as 50 % aqueous solution (Polyglykol 4000 M 50) in tank trucks or steel drums on request.
Polyglykol 4000 FL can be supplied in heated tank trucks and should be stored as melt at 60 – 80 °C under nitrogen and not longer than 6 months.
Polyglykol 4000 S, P, PF, PS, and PSK can be supplied in 20 kg sacks or in big packs and can be kept for at least two years, when stored in a cold, dry place in a closed container.
