Excellent resistance to fracture and thermal shock

Improving the fracture toughness of epoxy resins without decreasing the modulus or the glass transition temperature - no problem with Albidur®! Further property improvements can be obtained without increasing the viscosity of the resin, e.g. reduced shrinkage and negative coefficient of thermal expansion. 

Product overview
Improvements to properties
How it works

Product overview [back]

Technical data (no specification)

Albidur® EP 2240 and 2240 A differ in the silicone base: The elastomer particles in EP 2240 are based on a condensation curing silicone, while Albidur® EP 2240 A is based on an addition curing mechanism. This results in a different hydrophobicity of the particles which can be utilized to adjust to the polarity of formulations.

Improvements to properties [back]

Albidur® products consist of a reactive resin in which silicone elastomer particles of a defined size (0.1 – 3 µm) are finely distributed. The silicone elastomer particles have an organic shell structure comprising reactive groups (Figure 1). The toughening mechanism is the same as described for Albipox®; however, the rubber domains are already preformed and not built during the curing process.

Figure 1: Schematic representation of an  Albidur® particle

For further details, please contact our application specialists.