Polyurethane Catalyst DMDEE in a Nutshell

Polyurethane Catalyst DMDEE in a Nutshell
Overview:

Morpholine diethyl ether is used as a catalyst (or curing agent) in one-component polyurethane systems (e.g. one-component polyurethane caulks, one-component polyurethane foams, one-component polyurethane grouting materials, etc.). As one-component polyurethane prepolymers require long storage stability, di-morpholindiethyl ether plays the most critical role in the stabilisation and polymerisation of polyurethane prepolymers, which also places extremely high demands on the quality of di-morpholindiethyl ether products.

Basic information:

Synonyms: 2,2-Bis(morpholinodiethyl) ether, di-morpholinodiethyl ether, bis(2,2-morpholinoethyl) ether.

Abbreviations: DMDEE, Di-morpholinyl diethyl ether, CAS 6425-39-4, Catalyst DMDEE, Polyurethane catalyst DMDEE, Foaming catalyst DMDEE DMDEE, Dabco DMDEE, Jeffcat DMDEE, Lupragen N106, PC CAT DMDEE, Addocat 118

English name: 2,2-dimorpholinodiethylether;bis(2,2-morpholinoethyl)ether.

Molecular formula: C12H24N2O3

Relative molecular mass: 244.0

Structural formula: Bis(morpholinodiethyl) ether CAS 6425-39-4

Physical and chemical properties: Bis-morpholinoethyl ether is a colourless to light yellow liquid, soluble in water.

Typical physical properties are: Viscosity (25°C): 18 mPa-s.

Relative density (25°C): 1.06;

Boiling point: greater than 225°C; Melting point: less than -28°C;

Flash point (TCC): 146°C;

Amine value: 7.9~8.1mmol/g.

The purity of the industrial product is generally ≥99% or ≥98%, and the water content is ≤0.5%.

Applications: 2,2-bis-morpholinodiethyl ether is suitable for water curing system, it is a strong foaming catalyst, and can extend the storage period of NCO components due to the site resistance effect of amine, it is suitable for the catalytic reaction of NCO and water in TDI, MDI, IPDI and other systems; 2,2-bis-morpholinodiethyl ether is mainly used in one-component rigid polyurethane foam system, it can also be used in polyether type and polyester type polyurethane Flexible foams, semi-rigid foams, CASE materials, etc., added at 0.3-0.55% of the polyether/ester component.

Safety: Di-morpholino diethyl ether can burn the eyes and skin. In case of contact with eyes, wash eyes immediately with plenty of water and seek immediate medical attention. In case of contact with skin, the contaminated area should be washed immediately with water. Wear splash-proof eye protection, butyl rubber gloves, rubber lab coat and rubber boots during material handling.

Storage and transportation: Should be kept sealed and stored in a dry, cool and ventilated warehouse

Packaging: 210 KG/ drum

Storage: It is recommended to store in a dry and cool area with proper ventilation. Fasten the lid as soon as possible after the original packaging to prevent the mixing of other substances such as moisture from affecting the performance of the product. Do not breathe dust and avoid contact with skin and mucous membranes. Do not smoke, eat or drink in the workplace. Shower and change clothes after work. Store contaminated clothing separately and wash before use. Maintain good hygiene practices.