Jiaxing Nanyang Wanshixing Chemical Co., Ltd. articles

What is the epoxy hardener ratio?

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 molecul

What is epoxy hardener made of?

The epoxy resin itself is a thermoplastic linear structure. After heating, the solid resin can be softened and melted into a viscous or liquid state. The thermal viscosity of liquid resin decreases. Only when curing agent is added, epoxy resin can be used practically.

Composition of epoxy resin

A. Resin Composition

(1) Epoxy

Is epoxy glue heat resistant?

1. Epoxy resin AB adhesive classification: can be divided into epoxy resin filling adhesive, epoxy resin thermal conductive adhesive, epoxy resin sealant, epoxy resin high temperature adhesive, epoxy resin fast-drying adhesive.

2. Epoxy resin AB adhesive is a fast curing series, clear and viscous epoxy resin adhesive. It can be cured at low or normal

Methyl tetrahydrophthalic anhydride definition:Methyl tetrahydrophthalic anhydride is a chemical with a molecular formula of C9H10O3.

First, basic information.

Name: Methyl Tetrahydrophthalic Anhydride

Alias: 1,2,3,6-TETRAHYDRO-3-METHYLPHTHALIC ANHYDRIDE;

1-METHYL-5-CYCLOHEXENE-2, 3-DICARBOXYLIC ANHYDRIDE;

3-METHYL-DELTA4-TETRAHYDROPHTHALIC ANHYDRIDE;

3-

What is the curing agent definition? The curing reaction mechanism of anhydrides can be divided into two forms according to the presence or absence of accelerators.

1. In the absence of accelerants, the hydroxyl group in epoxy resin reacts with anhydride first, and the anhydride is turned on, then the addition polymerization is carried out. The order is as follows:

Hydroxyl reacts with anhydrid

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 matri

The epoxy resin itself is a thermoplastic linear structure. After heating, the solid resin can be softened and melted into a viscous or liquid state. The thermal viscosity of liquid resin decreases. Only when curing agent is added, epoxy resin can be used practically.

Composition of epoxy resin

A. Resin Composition

(1) Epoxy resin: Main component of resin composition, Bisphenol A epoxy resin and other types of epoxy resin

(2) Curing agen

Is epoxy glue heat resistant?

1. Epoxy resin AB adhesive classification: can be divided into epoxy resin filling adhesive, epoxy resin thermal conductive adhesive, epoxy resin sealant, epoxy resin high temperature adhesive, epoxy resin fast-drying adhesive.

2. Epoxy resin AB adhesive is a fast curing series, clear and viscous epoxy resin adhesive. It can be cured at low or normal

First, Phthalic acid (PA)

What is Curing agent definition? Phthalic anhydride is a traditional curing agent, which is still used in a large amount up to now, which is mainly used in the casting of electrical appliances. Phthalic anhydride is white crystalline with melting point 128, having the most important characteristics of low price, low curing exothermic peak and excellent elec

Methyl tetrahydrophthalic anhydride is a chemical with a molecular formula of C9H10O3.

First, basic information.

Name: Methyl Tetrahydrophthalic Anhydride

Alias: 1,2,3,6-TETRAHYDRO-3-METHYLPHTHALIC ANHYDRIDE;

1-METHYL-5-CYCLOHEXENE-2, 3-DICARBOXYLIC ANHYDRIDE;

3-METHYL-DELTA4-TETRAHYDROPHTHALIC ANHYDRIDE;

3-METHYLTETRAHYDROPHTHALIC ANHYDRIDE;

4-METHYL-1,2,3,6-TETRAHYDROPHTHALIC ANHYDRID;

4-METHYL-4-CYCLOHEXENE-1, 2-DICARBOX