Analysis of "Epoxy" type adhesives


Epoxy adhesives offer high mechanical strength, low shrinkage, excellent adhesion to a variety of substrates, good electrical insulation as well as incomparable chemical and thermal resistance. Thus, they are essential in various applications such as paints, adhesives, coating of electronic components as well as composites.

Polymerization is carried out either by polycondensation of the epoxy resin with a nucleophilic hardener (more common) or by homopolymerization of the epoxy resin using an ionic catalyst (less common). These are therefore two-component systems (2k) made up of a base (resin) and a hardener to be mixed in stoichiometric proportions.

In the vast majority of cases, the base (resin) will consist of a prepolymer resulting from the polyaddition of a polyepoxide (DGEBA, DGEBF, Epoxy-Novolac, BDDE…) on a polyfunctional (polyamine, polyol, polyester…) and the hardener will consist of a mixture of polyfunctionals (polyamine, polyol, polyester, anhydride, etc.) and adjuvants (catalyst, accelerator, etc.).

Colle epoxy analyse

Study of the composition of an Epoxy material

It is possible to perform structural analyzes by Pyrolysis/GCMS and IRTF to study the nature of the polymer matrix.

  • The adjuvants can be analyzed after solid / liquid extraction by GCMS and UPLC/TOF-MS .
  • The enthalpy and the polymerization temperatures as well as the glass transition temperature (Tg) can be obtained by thermal analysis by DSC.
  • Elemental analysis by SEM/EDX electron microscopy will allow dimensioning and determination of the nature of any charges.
  • Thermal analysis by TGA will give the contents of volatile fraction, polymer and residual charge.
Analyse structurale de résine epoxy




Structural Analysis by Pyrolysis / GCMS of an Epoxy-Novolac resin











Thermal Analysis by DSC of a Silicone Epoxy Resin





Elemental analysis by SEM/EDX electron microscopy of a charged epoxy resin


MEB sur epoxy chargé

Other families of adhesives

Epoxy glue

Epoxy glue

More info

Polyurethane

Polyurethane

More info

Adhesive mortar

Adhesive mortar

More info

Animal glue

Animal glue

More info

Vegetable resins

Vegetable resins

More info