Abstract:A two-component epoxy adhesive KH-A has been developed,to satisfy the needs for parts adhesion of
the solar array drive assembly(SADA) of satellite under the adverse space environment. The Tg of the cured KH-A is
as high as 143℃. The lap shear strength for carbon steel joints bonded with KH-A adhesive is 23. 0 MPa at 25℃ and
20. 9 MPa at 125℃. In addition,the cured epoxy exhibits good γ-ray radiation resistance. After a radiation dose of 1×
108 rad in γ-ray environments,the electrical breakdown strength of cured KH-A is 25. 2 kV/ mm,which is even higher
than that of the samples before radiation(20. 1 kV/ mm). At last,the cured KH-A possesses low outgassing properties
in vacuum with the total mass loss(TML) value of 0. 97% and collected volatile condensable materials(CVCM) value
of 0. 01%. Properties of adhesives KH-A can satisfy the application requirement of products.
