伊人色综合久久天天五月婷丨女高中生第一次破苞av丨国产内射老熟女aaaa∵丨国产精品亚洲成在人线丨久久不见久久见免费影院www

 ♦Physical Properties

Chemical Name: 4,4'-Methylene-Bis(3-Chloro-2,6-Diethylaniline),Curing Agent Chain Extender MCDEA

Molecular Formula:   C21H28Cl2N2

Molecular Weight: 379.37

CASNo.:  106246-33-7

4,4'-Methylene-Bis(3-Chloro-2,6-Diethylaniline) (Curing Agent Chain Extender MCDEA) Is ?A Derivative Of MDA, And Can Be Prepared With TDI Prepolymers To Produce Excellent Performance PU Elastomer. It Is Mixed With The Corresponding MOCA, 740M, Etc. It Can Improve The Performance Of PU Elastomers, And It Shows A Good Additive Effect. In The PU Casting, Spraying, RIM And Other Process Technology Methods, As Well As Microporous Products, TPU, Adhesives, Coating Agents And Other Products, Have A Wide Range Of Applications. This Product Is Basically Non-Toxic And Approved By The European Union For Food And Drug Contact.

♦Characteristics And Uses

a. This Product Has Good Compatibility And Compatibility With TDI Prepolymers. The Prepared PU Products Have Excellent Physical And Dynamic Mechanical Properties, And Can Be Used In PU Casting, Spraying, RIM And Other Process Technology Methods; In PU The Elastomers, Microporous Products, Adhesives, Coating Agents And Other Products Are Widely Used In The Preparation;

b. This Product Can Also Be Used As A Curing Agent For Epoxy Resin And For The Preparation Of Polyimide, Etc.;

c. Due To The Introduction Of The "Ethyl" Group In The MDA, The Toxicity Of The Product Is Greatly Reduced. For Example, oral Poisoning Value For Rats Is LD50> 5000 Mg/Kg.

♦Packaging

4,4'-Methylene-Bis(3-Chloro-2,6-Diethylaniline) (Curing Agent Chain Extender MCDEA) Is Placed In A Cardboard Drum/Box For PP Bags With 2kg Each , 20kg, 40kg Three Kinds Of Packaging.

Chain extender MCDEA-standard quality checklist-COA