New Epoxy Curing Agent - Amino-terminated Polyether Introduced in Jiangsu

A new type of epoxy resin curing agent, amine-terminated polyoxypropylene ether, was successfully developed by Yangzhou Chenhua Group Co., Ltd. and introduced to the market.
Most of room-temperature curing agents used for epoxy resins are aliphatic polyamines or modified amines. These products have large toxicity, deep color, strong irritation to human skin, large heat release from curing, short life cycle, and high internal stress in cured products. The poor thermal shock resistance and easy cracking of the resin after curing make the application limited. Yangzhou Chenhua Group has developed a new type of epoxy resin curing agent, an amino terminated polyoxypropylene ether (abbreviated as amino polyether). After trials, its performance is comparable to that of the US Texaco/Huntsman company JEFFAMINE. Its main specifications are: Tri-functional T-series and Di-functional D-series, specific grades are: T-5000, T-3000, T-403, D-400, D-2000, D-230 and so on.
Experts said that amino-polyethers are light yellow or colorless transparent liquids at room temperature. They have the advantages of low viscosity, low vapor pressure, and high content of primary amines. They can be dissolved in ethanol, aliphatic hydrocarbons, aromatic hydrocarbons, esters, and B. In glycol ethers, ketones, and water. According to reports, the use of amino polyether cured epoxy resin has a relatively long construction period, a lower exothermic temperature peak, can be a colorless transparent high-gloss material, can improve the state of the coating surface, very suitable for casting and Potting application. It has been proved that epoxy resins cured with D-230 and T-403 are very tough, heat-resistant, and can be used in combination with high-mass T-5000 and D-2000 to improve the flexibility of epoxy resins. At the same time, the amino polyether cured product has good alkali resistance, water resistance, and moderate acid resistance, so the epoxy resin cured using the amino polyether has good electrical properties.
Aminopolyethers have unique properties and cover almost all epoxy applications such as coatings, potting materials, construction materials, composites and adhesives. Compared with other amine curing agents, amino polyethers have low viscosity, light color, good compatibility with many organic substances, moderate reactivity, and can meet special requirements.