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Dimethyl Thiotoluene Diamine Application PU waterproof material

   Our One Kind With E-300 As A Curing Agent, Has Good Mechanical Properties Of Low-Density Polyurethane Foam Molded Veins. Hydrogenated MDI As The Isocyanate Component Values, NCO Index Of 1.00, So That E-300 At 23 ℃ Mixed With 30s, When The Gel Division About 28 Min. So That 50 Parts Voranol 4703 Polyether Polyol, 50 Parts Voranol 4925 Polymer Polyol, 1.5 Parts Diethanolamine, 4.0 Parts Water, 4.0 Parts Of Niax Y-10184A, 1. 2 Parts Of Dabco 33 LV, 0 15 Parts Of Niax A-1 Catalyst, 2.5 Parts Of A Mixture Of E-300 And 49.1 Parts Mondur TD-80 (TDI-80) At 230C, 1200 Rev / Min Speed Mixing Under 4s, Then Poured Another Container Between The Milk-Mail Inch Observation Of 7s, Thickening Time Of 38 S, Free Rise Time Of 78 S, The Foam In Good Condition.

   So That The Above-Mentioned Components Are Mixed Non-TDI, Then Added TDI-80, And Stirred At 1200 R / Min Speed 5s, The Reaction Mixture Was Added A Mold And Sealed, 2 Min After The Mold Into An Oven 8 Min 60 ℃, And Then Stripping, The Resulting Foam At 25 ℃ And 50% Relative Humidity Aging 7d, The Mechanical Properties Measured As Follows: Density 30. 24 Kg / M3, Tear Strength 311. 7 N / M, Tensile Strength 142.83 KPa, Elongation Of 108%, 25% IFD 200. 1 KPa, 65% IFD 600. 3 KPa.

  PU Coating With Excellent Softness, Durability, Widely Used In Waterproof Materials And Coatings And Other Fields. However, The Traditional Polyol Used In The Process As A Chain Extender, It Requires The Use Of A Catalyst At A Low Temperature Operation, As When Using MOCA Chain Extender Reaction Too Poor Heat Resistance And Mechanical Properties Of The Resulting Waterproof Material, PU Coating Of Poor Adhesion Between The Coating And Paint And PU Between.    

   A Safety Developed By Our Company, At A Low Temperature 0 ℃ Curing Excellent Properties, Coating Performance And Adhesion And Good PU Waterproof Material [35]. The Main Agent Composition With TDI Based Prepolymers, -NCO Content 1.500 ^ -6 .. %; Hardener Component Consists DMTDA And Other Aromatic Amines, The Acid Catalyst And The Molecular Weight <700 PPG Constitution. N (-NCO) N (-NHZ) _ (0. 8 ^} 3 0.): 1, PPG Amount Satisfies N (-NCO): N (-OH) = (.. 1 1 ^ 10 0): 1 The Catalyst Preferably Partial Organic Acid, Preferably In The Curing Agent Mass Fraction Of 0.0500 ^ 5.000. In Addition, The Formulation May Also Contain A Metal Catalyst, Plasticizers, Fillers, Antioxidants, Antioxidant, And Pigment. Construction, Mixing The Main Agent And Curing Agent, With A Roller Is Applied To The Material Required For Processing (Such As Concrete) Surface Of The Mixture At 20 ℃ Gel Time At 15 ^ -30 Min, Preferably Coated The First Two Days And Then The Next Step After The Construction, It Is A Good Balance Of Time And Curability. The Waterproof Material With Good Mechanical Properties And Heat Resistance.

Contact Us

  • Contacts: Ms.Shao
  • sales@yaruichem.com
  • Skype: yaruichem@hotmail.com
  • Tel: +86-512-58961066
  • Fax: +86-512-58961068
  • QQ: 2880130940