High-Strength Hollow Glass Microsphere/Epoxy Resin Composite Insulation Materials for Deep In-Situ Condition Preserved Coring

Figure 1

Compressive strengths of EP matrixes prepared with different curing agents. The compressive strengths of EP cured by AEEA, 594, CICA, 2E4MI, and mPDA were 82.28 MPa, 87.01 MPa, 93.4 MPa, 143.55 MPa, and 194.09 MPa, respectively.