Diamine extender chain agent

Diamine extender chain agent, DETDA and DMTDA is liquid aromatic diamine blocking, developed by baton rouge companies in the United States in the 80 s, the brand is respectively 100 and 300 Ethacure Ethacure, later the Albemarle (yabao) adopt the two brand production. Both chain extender is a liquid aromatic diamine, including DETDA and NCO's reaction speed is faster than DMTDA several times, about 30 times faster than MOCA, in the field of polyurethane (pu) is mainly used for research in motion (RIM) process; DMTDA type can be used for casting polyurethane elastomer and so on. These two are used for spraying polyurethane - urea system.

Unilink diamine extender chain is relatively well-known polyurethane pre polymers curing agent.

Unilink and Clearlink diamine curing agent of the property of relatively typical points viscosity (38 ℃) relative density flash point moisture LD50

MPa s. PMCC % mg/kgUnilink 4100 220 8.5 8.5 (16 ℃) 121 < 8.5 Unilink Unilink 4102 220-8.0-4102, 4200, 310, 115, 0.99 (16 ℃) 163 ~ 177 < 0.051380

Mixture Unilink 4230 265 1.01 (16 ℃) < 0.05 > 177 177

Unilink 7100 305 32.4 0.88 ~ 0.92 > Clearlink, 100-780, 1000, 322, 110 (16 ℃ (20 ℃) < 0.06482 Clearlink 141, 3000, 350, 270 (16 ℃ (20 ℃) 93 < 0.03523 Clearlink of 8000

63.4 0.88 (27 ℃) - 434

Unilink chemical name for 1, 4-4100 double base sec-butylamine benzene, is a kind of low cost liquid diamine chain extension agent, used for curing polymers has a long shelf life (in life), is a slow chain extension agent, can be used in the MDI polyurethane elastomer, polyurethane and different melamine urea rigid acid ester, improve the dimension stability of the foam, liquidity and adhesion. Can see the "double sec-butylamine base 1, 4 - benzene" the content of the entry.

Unilink 4200 chemical name 4, 4 '- double sec-butylamine diphenyl methane, is of secondary amine liquid aromatic compounds can be used for all kinds of polyurethane foam and polyurethane foam, slower, curing polyurethane material has good adhesion, can see the "4, 4' - double sec-butylamine diphenyl methane" the content of the entry.




Chinese name: Diethyl toluene diamine(DETDA)

Chinese alias: aryl, aryl diethyl - aryl - methyl-p-phenylenediamine

English name: Benzenediamine, ar, ar-diethyl-ar-methyl-English aliases:Diethyltoluenediamine; ar, ar-Diethyl-ar-methylbenzenediamine;Diethylmethylbenzenediamine;

CAS No. :68479-98-1

EINECS No. :270 -877-4

Molecular formula: C11H18N2

Molecular Weight: 178.28

Boiling point: 310 ℃

Refractive index: 1.581

Flash Point: > 140 ℃

Inchi: InChI = 1/C11H18N2/c1-4-8-6-7 (3) 10 (12) 11 (13) 9 (8) 5-2/h6H ,4-5,12-13H2 ,1-3H3 density : 1.022

Risk Codes: R10; R35

RIDADR: UN 3082

Safety instructions: S2; S26; S39; S61

Packing Group: III

Hazard Class: 6.1


Unilink chemical name 1, 2-4102 double base sec-butylamine benzene, English name 1, 2 - Bis - (SEC - butylamino) - benzene. It is isophthalic secondary amine, has the similar performance as Unilink 4100, curing speed slower than Unilink 4100.

Unilink 4230 is a special diamine extender chain agent and crosslinking agent (2 - hydroxypropyl) and the mixture of ethyl diamine, viscosity (16 ℃) 4000 mPa s., apparent hydroxyl value (amine) 432 mgkoh/g, recommended for TDI polyurethane elastomer, coating, adhesive, sealant, soft and hard elastomer can be used, a long pot life, cure the MOCA curing soft, hardness can be obtained under shao A60 elastomer.

Unilink 1, 4-7100 double ZhongGeng amino benzene, structured similar to Unilink 4100 brown liquid, can be used for all kinds of polyurethane products, has a long life in the kettle.

Clearlink 1000 is a new type of two secondary amine liquid aliphatic chain extender. Appearance is colorless liquid, low viscosity, pour point - 42 ℃. Low moisture sensitivity, good compatibility with other polyurethane raw materials. Generally used to combine with aliphatic isocyanate, the light stability of the polymer. Reactivity is lower than the other diamine active on the market. Light stability can be obtained using conventional spray technology of polyurethane and polyurea coatings.

Clearlink 3000 is a new type of aliphatic secondary amine, molecular structure is unknown. Is mainly used to combine with aliphatic isocyanate, the light stability of the polymer. Appearance is colorless liquid, low viscosity, pour point - 30 ℃, low moisture sensitivity, good compatibility with other polyurethane raw materials. Much lower than 1000 Clearlink reactivity, also is lower than the other diamine active on the market. Reaction of urea base generally increase strength, hardness and heat resistance.

Versalink series end amino polyether is for room temperature curing polyurethane elastomer crosslinking agent, curing agent, polymers with TDI and MDI pre polymers of elastomer system.

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Diethyl toluene diamine(DETDA)  http://www.yaruichem.com