三乙烯二胺
化学名称：1,4-二氮杂二环[2.2.2]辛烷；
别名：固胺、三亚乙基二胺
英文名称：1,4-Diazabicyclo[2.2.2]octane;triethylenediamine
英文缩写：DABCO TEDA
分子式：C6H12N2
分子量：112.18
CAS编号：280-57-9
物化性能
三乙烯二胺（TEDA）常态为无色或白色晶体，暴露在空气中易吸湿潮解并结块，呈碱性，能吸收空气中的CO2并发黄。易溶于丙酮、苯及乙醇。纯TEDA毒性很小，吸入饱和的三乙烯二胺（TEDA）蒸汽会引起轻微的黏膜刺激，对眼睛有损害，刺激皮肤会引起过敏症。
相对密度（25℃）：约1.14
纯品熔点：158-159℃
闪点：60℃
沸点：174℃，易升华，微有氨味
蒸汽压：21℃约为67Pa，50℃为533Pa，100℃为7.7kPa
应用简介：
三乙烯二胺（TEDA）是一种双杂环结构的叔胺催化剂，主要用于生产聚氨酯泡沫的凝胶催化剂，广泛用于软质、半硬质、硬质聚氨酯泡沫塑料、弹性体，此外三乙烯二胺（TEDA）还可用作环氧树脂固化催化剂、乙烯聚合催化剂、丙烯腈聚合催化剂乙基环氧乙烷烃聚合催化剂以及农药的引发剂和无氢电镀添加剂等。
三乙烯二胺（TEDA）的化学结构很独特，是一种笼状化合物，两个氮原子上连接三个亚乙基。在叔胺催化剂中，三乙烯二胺（TEDA）是最重要的有个品种，可广泛用于各种聚氨酯泡沫塑料，在一步法发泡工艺中，三乙烯二胺（TEDA）的重要性尤其显著。一方面它活性高，用量较小；另一方面它对凝胶反应和发泡反应都有较强的催化作用，尤其对聚氨酯与羟基的催化作用选择性更强。
东莞广思远聚氨酯材料有限公司成立于2009年，深耕于聚氨酯原料的细分行业—胺催化剂；研发并复配生产各类型胺催化剂，主营产品：胺催化剂9727、胺催化剂CS90、无味胺催化剂ZF-10、无味胺催化剂Z-131、胺催化剂RP-208、DMDEE、三乙烯二胺、催化剂A300、BDMA、催化剂SMP等，产品适用于海绵、模塑、高回弹、自结皮、PU玩具及各种硬泡和半硬泡等终端产品。
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.
