Overview
2,2'-Dimorpholinodiethyl Ether (DMDEE) is an organic compound widely used as an accelerator in polyurethane (PU) foam production. It belongs to the morpholine family and is valued for its ability to enhance curing rates in PU systems. DMDEE is particularly effective in one-component foams and adhesive formulations due to its balanced reactivity and stability. The compound is synthesized through the reaction of morpholine with diethylene glycol dichloride. Its molecular structure includes two morpholine rings linked by an ether group, contributing to its catalytic properties. DMDEE is commercially available in liquid form, often with high purity grades suitable for industrial applications.
Physical and Chemical Properties
DMDEE is a colorless to pale yellow liquid with a mild amine-like odor. It has a density of approximately 1.06 g/cm³ and a boiling point range of 310-315°C. The compound is soluble in water and most organic solvents, including alcohols, ethers, and ketones, making it versatile for formulation purposes. Key chemical properties include its role as a strong tertiary amine catalyst, which accelerates the reaction between isocyanates and polyols in PU systems. DMDEE exhibits low volatility under standard conditions, reducing emissions during processing. Its stability in storage and compatibility with other PU additives further enhance its industrial utility.
Main Applications
DMDEE is primarily used as a catalyst in the production of polyurethane foams, including flexible, rigid, and spray foams. It accelerates the gelation and blowing reactions, improving foam expansion and curing times. This makes it indispensable in manufacturing insulation panels, automotive seating, and construction materials. Beyond PU foams, DMDEE finds applications in adhesives, coatings, and elastomers where fast curing is required. It is also employed in specialty chemical formulations, such as sealants and encapsulants, due to its compatibility with various polymer systems. Its effectiveness in low-temperature curing further extends its use in cold-climate applications.
Safety and Storage
DMDEE requires careful handling due to its potential health hazards. Direct contact with skin or eyes can cause irritation, and inhalation of vapors may lead to respiratory discomfort. Personal protective equipment (PPE), including gloves, goggles, and respirators, is recommended during handling. Storage should be in tightly sealed containers, away from heat sources and open flames. The compound is stable under normal conditions but may degrade if exposed to moisture or acidic environments. Spills should be contained using inert absorbents and disposed of according to local regulations.
B2B Procurement Guide
When procuring DMDEE, prioritize suppliers with certifications such as ISO 9001 or REACH compliance to ensure product quality and regulatory adherence. Key specifications to verify include purity (typically ≥98%), water content (≤0.5%), and absence of heavy metals. Bulk purchases often offer cost advantages, with prices ranging approximately $15-$30 per kilogram depending on volume and supplier. Request technical data sheets (TDS) and material safety data sheets (MSDS) for compliance and safety assessments. For international shipments, confirm packaging standards (e.g., 200 kg drums) and transportation regulations.
Related Manufacturers
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