Tetrahydrophthalic anhydride (C9H10O3) epoxy resin curing agent performance characteristics: high purity, light color: can be directly prepared or prepared in various colors of epoxy resin curing agent products. Low viscosity: good processability in casting and potting. A large amount of filler can be added during casting to make the cured product excellent in performance. Stable performance: long pot life, low freezing point, long-term storage at room temperature. Low volatility: low toxicity, low heat loss, toxicity is only one forty times lower than amine curing agents. Can obtain high-quality cured products, cured products not only have higher mechanical strength, but also have good electrical properties and heat and corrosion resistance. It has good transparency, weather resistance, and potting and casting stability. It is especially suitable for white potting casting materials. It is an ideal curing agent to replace B-570 imported by Dainippon Ink Chemical Company. During storage and transportation, avoid light, seal, and moisture. If it is improperly stored, precipitation will occur after absorbing moisture, and it only needs to be heated to 140 ° C to restore the original state without affecting the original performance.
Phthalic anhydride composition-tetrahydrophthalic anhydride
Tetrahydrophthalic anhydride is a widely used chemical raw material. It is used as a curing agent for epoxy resins, plasticizers for atomic ash resins, adhesives, paints, modifiers for unsaturated polyesters, agents for the fiber industry, and pesticides. Insecticide, humectant, polyester resin, etc. It is an acid anhydride curing agent with a cyclic structure. It has high heat resistance with epoxy resin cured products, good mechanical strength and electrical properties, but it is not prone to intramolecular movement and is brittle curing Agent. Tung oil has the best dryness, and the oil film has strong non-stick, strong adhesion, water resistance, alkali resistance, sunlight resistance and other properties. Methyl tungrate anhydride (MeMA) is an experiment of this kind of flexible anhydride curing agent obtained from tung oil through transesterification reaction and D-A addition reaction.