First, The Product Basic Information
Chinese Name: Diethyl toluene diamine, Curing Agent Chain Extension DETDA Cas No.: 68479-98-1
English Name: Diethyl Toluene Diamine detda
Appearance: Light Yellow To Amber Transparent Viscous Liquid, Slightly Soluble In Water, Soluble In Alcohol, Ether, Ketone And Other Polar Organic Solvents, And Polyether, Polyester Polyol Compatibility.
Molecular Weight: 178.28
Molecular Formula: C11H18N2
Relative Molecular Mass: 178.3
Boiling Point: 301.4 ° C At 760 MmHg
Steam Pressure: 0.00106mmHg At 25 ° C
Flash Point: 161.1 ° C Density: 1.013g / Cm3
Packing: Net Weight 200KG / Galvanized Iron Drum (A Small Cabinet Playing With 16 Tons), 1000KG / IB Bucket (A Small Cabinet 18 Tons) Or 23 Tons ISOTANK.

Foreign Similar Products: The United States AIbemarle Company (Grade Ethacure 100), Switzerland Lonza Group (Brand Lonzacure DETDA 80), Germany Nitroil Company (Brand PCAmine ADA L80)
The Following Is A Foreign Factory Production Of Product Targets:
The Ratio Of The Relative Molecular Mass To The Average Number Of Reactive Groups In Each Molecule Is About 89.1 To 89.5, Which Is The Same As That Of The Epoxy Resin Equivalent To About 44.3.
1. United States A1bemarle Company DETDA Products (Grades Ethacure100) Typical Composition Of The Quality Score:
Moisture <0.08%
Dialkyl And Other Compounds 0.5% To 3%
3,5-Diethyl-2,4-Diamine 75% To 81%
3,5-Diethyl-2,6-Diamine 18.0% To 20.0%
2. Lonza'S DETDA Product (Grade Lonzacure DETDA 80), 3,5-Diethyl Diamine Purity ≥ 97.5%, The Quality Of The Components:
Moisture: <0.10%
Diamine: ≤0.015%
Ethylenediamine: ≤1.0%
3,5-Diethyl-2,4-Diamine: 77.0% To 81.0%
3,5-Diethyl-2,6-Diamine: 18.0% ~ 22.0%
According To The Above Data Comparison, I Plant Production Of Diethyl Toluene Diamine (DETDA) Product Quality Equivalent To Foreign Production Of DETDA.

Second, Product Use
Isothamine Is A Very Effective Polyurethane Elastomer Chain Extender, Especially For RIM (Reactive Injection Molding) And SPUA (Sprayed Polyurea Elastomer); Also Can Be Used As Is A Polyurethane Diamonds And Epoxy Resin Aromatic Diamine Curing Agent For Pouring, Paint, RIM And Adhesives, But Also Polyurethane And Polyurea Elastomer Chain Extender. Diethyltoluene Diamine Curing Agent Chain The DETDA Is A Sterile Diamine, And The Steric Hindrance Of Ethyl And Methyl Makes Its Activity Much Lower Than That Of Tolylenediamine (TDA). It Reacts With Polyurethane Prepolymer Faster Than DMTDA , Which Is About 30 Times Faster Than MOCA. It Is Mainly Used In RIM Polyurethane System And Spray Polyurethane (Urea) Elastomer Coating System, Which Has The Advantages Of Quick Reaction Speed, Short Mold Release Time, High Initial Strength, Hydrolysis Resistance And Heat Resistance. Products Can Also Be Used As Elastomers, Lubricants And Industrial Oils Of Antioxidants, As Well As Chemical Synthesis Intermediates.


Three, Diethyltoluene Diamine (DETDA) And Dimethyl Thiomethylenediamine (DMTDA) Two Products
Commonly Used Are Two Kinds Of Liquid Amine Chain Extender: Diethyltoluenediamine (Detda, Ethacurel00), Dimethyl Thiomethylenediamine (DMTDA, Ethacure 300). Liquid Amine Chain Extender DMTDA Reacts With The Prepolymer At A Faster Rate Than The Liquid Amine Chain Extender Detda, Which Is Used In Combination With Detda To Impart Good Surface Leveling Properties To The Elastomer And Has Little Effect On Mechanical Properties. However, Because Its Molecules Contain Methylthio (-SCH3), So Easy To Use In The Outdoor Discoloration, Yellowing, Can Not Be Used For High Color Retention Requirements Of The Occasion.

A Steric-Type Secondary Amine-Based Chain Extender Such As N, N'-Dialkylmethylenediamine Can Be Used. The Structural Formula Contains An Unstable H And One Alkyl, Alkyl In The Molecule Is Equivalent To The Internal Plasticizer. Compared With Other Aromatic Amine Chain Extender, N, N'-Dialkyl Methyl Diamine And Isocyanate Reaction Speed Is Slow, Can Get A Better Surface State. Mix With The Detda, Can Adjust The Gel Time, And Improve The Adhesion And Surface State.


Fourth, The Production Process
Diethyltoluene Diamine Detda Is A Polyurethane Elastomer And Epoxy Resin Aromatic Diamine Curing Agent For Pouring, Coating, RIM And Adhesives, But Also Polyurethane And Polyurea Elastomer Chain Extender.

Diethyltoluene Diamine Detda Is A Steric Hindrance Of Aromatic Diamines, Ethyl And Methyl Steric Hindrance Makes Its Activity Much Lower Than Toluene Diamine (TDA). It Reacts With Polyurethane Prepolers Several Times Faster Than DMTDA, About 30 Times Faster Than MOCA. It Is Mainly Used In RIM Polyurethane System And Sprayed Polyurethane (Urea) Elastomer Coating System. It Has The Advantages Of Quick Reaction Speed, Short Mold Release Time, High Initial Strength, Hydrolysis Resistance And Heat Resistance. In Addition The Product Can Also Be Used As Elastomers, Lubricants And Industrial Grease Antioxidants, As Well As Chemical Synthesis Intermediates.


Fifth, Export Essential Information
Chinese Name: Diethyl Toluene Diamine
English Name: Diethyl Toluene Diamine, DETDA
Appearance: Light Yellow To Amber Transparent Viscous Liquid, Slightly Soluble In Water, Soluble In Alcohol, Ether, Ketone And Other Polar Organic Solvents, And Polyether, Polyester Polyol Compatibility.
Cas Number: 68479-98-1
Customs Code HS: 292159090
Belong To Several Types Of Dangerous Goods: 9 Categories Of Dangerous Goods Exports.
Raw Materials: Toluene Diamine (TDA) And Ethylene As Raw Materials.
Tax Rebate: The Current Diethylene Toluene Diamine (DETDA) Tax Rebate Of 17%.
The Most Important Indicators Of The Product: Light Yellow To Amber Transparent Liquid, Content ≥ 98%, Water ≤ 0.1%, Color Number 2-8.
Packing: Net Weight 200KG / Galvanized Iron Drum (A Small Cabinet Playing With 16 Tons), 1000KG / IB Bucket (A Small Cabinet 18 Tons) Or 23 Tons ISOTANK.