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  • Epoxy Curing Agent: Calculation of Anhydride-type Curing Agent Dosage
    Epoxy Curing Agent: Calculation of Anhydride-type Curing Agent Dosage
    Jun 18, 2024
    Calculation of Anhydride-type Curing Agent Dosage   When using anhydride curing agents, we can generally calculate the dosage using the following formula:   Where "c" is the correction factor: For general anhydrides, c=0.85−0.9c = 0.85 - 0.9; For using tertiary amine curing agents, c=1; For using chlorinated anhydrides, c=0.6c = 0.6.   Example: If the relative molecular mass of Methyl Tetrahydrophthalic Anhydride (MTHPA) is 168, and it contains one anhydride group, To calculate the amount of anhydride needed for curing E-51 epoxy resin, the dosage calculation is: This means that approximately 77 grams of MTHPA are needed to cure 100 grams of E-51 epoxy resin.   Precautions Anhydride-type curing agents are quite corrosive. Proper and careful handling is required. Wear gloves, masks, and other protective gear to avoid inhalation and contact. Clean thoroughly after handling.
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