三乙烯二胺

 

簡稱：固胺、TEDA、DABCO

化學名稱：1,4-二氮雜二環[2.2.2]辛烷； 
別名：固胺、三亞乙基二胺
英文名稱：1,4-Diazabicyclo[2.2.2]octane;triethylenediamine 
英文縮寫：DABCO TEDA 
分子式：C6H12N2 
分子量：112.18 
CAS編號：280-57-9

 

物化性能

三乙烯二胺（TEDA）常態為無色或白色晶體，暴露在空氣中易吸濕潮解并結塊，呈堿性，能吸收空氣中的CO2并發黃。易溶于丙酮、苯及乙醇。純TEDA毒性很小，吸入飽和的三乙烯二胺（TEDA）蒸汽會引起輕微的黏膜刺激，對眼睛有損害，刺激皮膚會引起過敏癥。

相對密度（25℃）：約1.14

純品熔點：158-159℃

閃點：60℃

沸點：174℃，易升華，微有氨味

蒸汽壓：21℃約為67Pa，50℃為533Pa，100℃為7.7kPa

 

應用簡介： 

三乙烯二胺（TEDA）是一種雙雜環結構的叔胺催化劑，主要用于生產聚氨酯泡沫的凝膠催化劑，廣泛用于軟質、半硬質、硬質聚氨酯泡沫塑料、彈性體，此外三乙烯二胺（TEDA）還可用作環氧樹脂固化催化劑、乙烯聚合催化劑、丙烯腈聚合催化劑乙基環氧乙烷烴聚合催化劑以及農藥的引發劑和無氫電鍍添加劑等。

 

三乙烯二胺（TEDA）的化學結構很獨特，是一種籠狀化合物，兩個氮原子上連接三個亞乙基。在叔胺催化劑中，三乙烯二胺（TEDA）是最重要的有個品種，可廣泛用于各種聚氨酯泡沫塑料，在一步法發泡工藝中，三乙烯二胺（TEDA）的重要性尤其顯著。一方面它活性高，用量較小；另一方面它對凝膠反應和發泡反應都有較強的催化作用，尤其對聚氨酯與羥基的催化作用選擇性更強。

 

 東莞廣思遠聚氨酯材料有限公司成立于2009年，深耕于聚氨酯原料的細分行業—胺催化劑；研發并復配生產各類型胺催化劑，主營產品：胺催化劑9727、胺催化劑CS90、無味胺催化劑ZF-10、無味胺催化劑Z-131、胺催化劑RP-208、DMDEE、三乙烯二胺、催化劑A300、BDMA、催化劑SMP等，產品適用于海綿、模塑、高回彈、自結皮、PU玩具及各種硬泡和半硬泡等終端產品。

 

 

TEDA

 

Namet: serotonin, TEDA, DABCO ，TRIETHYLENEDIAMINE

Chemical formula: C6H12N2

 

Physical and chemical properties

Normally, triethylenediamine (TEDA) is colorless or white crystal. When exposed to the air, it is easy to absorb moisture and dehydrate and agglomerate. It is alkaline and can absorb CO2 from the air and turn yellow. Soluble in acetone, benzene and ethanol. Pure TEDA is very toxic, and inhaling saturated triethylenediamine (TEDA) vapors can cause mild mucosal irritation, damage to the eyes, and irritation to the skin that can lead to allergies.

Relative density (25℃) : about 1.14

Melting point of pure product: 158-159℃

Flash: 60 ℃

Boiling point: 174℃, easy to sublimate, slightly ammonia taste

Steam pressure: about 67Pa at 21℃, 533Pa at 50℃, 7.7kPa at 100℃

 

Application Introduction:

Triethylene diamine (TEDA) is a kind of double heterocyclic structure of the tertiary amine catalysts, mainly for the production of polyurethane foam gel catalyst, widely used in the soft, semi-hard, rigid polyurethane foam plastics, elastomers, and triethylene diamine (TEDA) can also be used for curing epoxy resin catalyst, ethylene polymerization catalyst, polymerization of acrylonitrile catalyst ethyl epoxy b alkane polymerization catalyst and initiator of pesticide and no hydrogen electroplating additive, etc.

 

The chemical structure of triethylenediamine (TEDA) is unique. It is a cage compound with three ethyl groups attached to two nitrogen atoms. Among tertiary amine catalysts, triethylenediamine (TEDA) is the most important, which can be widely used in various polyurethane foams. In the one-step foaming process, the importance of triethylenediamine (TEDA) is particularly significant. On the one hand, it has high activity and small dosage; On the other hand, it has a strong catalytic effect on both gel reaction and foaming reaction, especially the catalytic effect of polyurethane and hydroxyl is stronger.