Yangzhou launches new epoxy curing agent

Epoxy curing properties and cured properties can be adjusted by using different curing agents. Most room temperature curing agents used for epoxy resins are aliphatic polyamines or modified amines, but they have large toxicity, deep color, strong irritation to human skin, large heat release from curing, short life cycle, high internal stress in cured products, and curing. The post-resin has poor thermal shock resistance and easy cracking, making its application limited. Yangzhou Chenhua Group Co., Ltd. has successfully researched and developed a new type of epoxy resin curing agent, amino terminated polyoxypropylene ether (abbreviated as amino polyether). After trial, its product performance and the United States Texaco/Huntsman company JEFFAMINE products equivalent.
The main product specifications are: Tri-functional T-series and Di-functional D-series. The specific grades are: T-5000, T-3000, T-403, D-400, D-2000, D-230 and so on.
Aminopolyethers 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, glycol ethers. , ketones, and water solvents. The use of amino polyether cured epoxy resin has a relatively long construction period, a low exothermic temperature peak, can be a colorless and transparent high gloss material, can improve the state of the coating surface, very suitable for casting and potting applications . Epoxy resins cured with D-230 and T-403 are very tough, thermal shock resistant. By blending with high molecular weight T-5000 and D-2000, the flexibility of the epoxy resin can be improved. Aminopolyether cured products have good alkali and water resistance and moderate acid resistance. The use of amino polyether cured epoxy resin 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 application requirements.