EN
Better quality
Better QualityBetter service
Better Quality
The Largest Manufacturer of MTHPA Products in China.

What Is The Ratio Of Epoxy and Hardener?

1. Amine curing agents

W(mass fraction of amine curing agent required for 100 mass fraction resin)/%=(amine equivalent/epoxy equivalent)*100 mass fraction resin=(molecular weight of amine*100 mass fraction resin)/ (number of active hydrogen atoms in amine molecule*epoxy equivalent=(molecular weight of amine/number of active hydrogen atoms in amine molecule)*epoxy value=(molecular weight of amine/number of active hydrogen atoms in amine molecule)*(percentage of epoxy matrix/epoxy group molecular mass)

2. Calculating the dosage of low relative molecular weight Polyamide

Amine value is often used to measure the number of amino groups in the specification of polyamide products in low relative molecule, which can not correctly reflect the number of active hydrogen atoms. Therefore, the amine value can not be simply used as the basis for calculating the amount of polyamide. For typical polyamides, the following formula can be used to calculate the dosage.

W(polyamide)%=(56100/amine value*f)*epoxy value n-3

3. Calculating the dosage of ketoimide

W(ketoimide)%=(curing agent equivalent/epoxy equivalent)*100

"Equivalent" here means that ketimine reacts with water at the same time.
Related News
  • Methyl Tetrahydrophthalic Anhydride Curing Agent

    Methyl Tetrahydrophthalic Anhydride Curing Agent

    May 28, 2019Methyl tetrahydrophthalic anhydride (MTHPA, MeTHPA) is a chemical substance that is used in the processing of some materials. Some common curing agents have the use of methyl tetrahydrophthalic anhydr...view
  • What Is The Fastest Way To Cure Epoxy Resin

    What Is The Fastest Way To Cure Epoxy Resin

    June 5, 2019Epoxy resin belongs to an organic chemical, which is suitable for use on the floor when decorating. At the same time, this product has strong corrosion resistance, which is also an electrical insulati...view
  • How To Avoid Epoxy Resin Cloudy

    How To Avoid Epoxy Resin Cloudy

    June 5, 20191. Reduce the purity of epoxy resin, such as adding other types of epoxy resin.2. Use epoxy resin with low crystallization tendency or without crystallization.3. Storage conditions: Storage temperatur...view
  • Knowledge of Methyl Tetrahydrophthalic Anhydride

    Knowledge of Methyl Tetrahydrophthalic Anhydride

    May 28, 2019Methyl tetrahydrophthalic anhydride (MeTHPA, MTHPA) is a new type of liquid organic acid anhydride epoxy resin curing agent with excellent performance. Because the acid anhydride curing agent has bett...view
  • Method for Producing MTHPA (MeTHPA)

    Method for Producing MTHPA (MeTHPA)

    May 28, 2019Methyl tetrahydrophthalic anhydride (MTHPA, MeTHPA) material, which is widely used in industries such as electronic potting and encapsulation, electrical casting, electrical impregnation, insulation c...view
  • Why Is My Epoxy Resin Cloudy

    Why Is My Epoxy Resin Cloudy

    June 5, 2019In autumn and winter when the temperature is low, many customers often encounter such problems when using epoxy resin adhesive: epoxy resin adhesive sometimes becomes turbid and unclear, and partially...view


Contact Us