Case Research: EP21TDCS-LO: A conductive bonding agent for space-environment assemblies

Conductive bonding brokers play a elementary function in making certain dependable electrical connectivity in lots of electromechanical assemblies designed to function on the extremes of temperature and stress of house. Failure of a single bond between conductive elements in an meeting can ripple quickly via mechanical and electrical techniques, finally threatening spacecraft integrity and crew security. In two purposes, Grasp Bond EP21TDCS-LO conductive epoxy met essential necessities for sustaining strong bonds in electromechanical techniques supposed to function in house circumstances.

Grasp Bond Polymer System EP21TDCS-LO is a two element, silver-filled epoxy designed to make sure high-strength conductive bonds between dissimilar supplies at temperatures all the way down to 4K. In contrast to most two-part silver-filled adhesives, Grasp Bond EP21TDCS-LO makes use of a easy one-to-one combine ratio that is still workable for 30-40 minutes and cures at room temperature in 24-48 hours or in 1-2 hours at 200°F. With quantity resistivity lower than 10^-3 ohm-cm, this adhesive cures to an electrically conductive bond that mixes excessive energy (shear energy over 850 psi) and adaptability (T-peel energy over 5 kilos per linear inch) – properties uncommon in a silver epoxy. Together with its workability and efficiency traits, Grasp Bond EP21TDCS-LO meets essential necessities for house operations together with passing NASA low-outgassing take a look at standards.

The purposes listed within the desk beneath spotlight use of Grasp Bond EP21TDCS-LO in making certain high-strength, conductive bonds in assemblies designed to outlive the cruel circumstances of house.

Purposes of Grasp Bond EP21TDCS-LO

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Sources

¹Dekany, Justin; Johnson, Robert H.; Wilson, Gregory; Evans, Amberly; and Dennison, JR, “Ultrahigh Vacuum Cryostat System for Prolonged Low Temperature Area Atmosphere Testing,” All Physics College Publications, Paper 1455, 2012.

²Sinnamon, Samuel, “Coolant Distribution Management in Satellite tv for pc Structural Panels Utilizing Electrohydrodynamic Conduction Pumping,” MS thesis, Mechanical Engineering, College of New Mexico, Might 2012.