TY - JOUR
TI - Preparation and properties of epoxy foam materials for deep in-situ condition-preserved coring device
AU - Yang Jian-Ping
AU - He Zhi-Qiang
AU - Yu Bo
AU - Wei Zi-Jie
AU - Xie He-Ping
JN - Thermal Science
PY - 2025
VL - 29
IS - 2
SP - 1471
EP - 1476
PT - Article
AB - To maintain the in-situ temperature of rock cores, a specialized coring  device equipped with temperature-preserved module is essential. The thermal  insulation material with low thermal conductivity and high compressive  strength is a critical component. In this study, an innovative foaming agent  was utilized to fabricate an epoxy resin-based insulation material.  Nanosilica particles were synthesized via the sol-gel method, followed by  the preparation of porous SiO2 microspheres using the polymer-induced  colloid aggregation method. The porous SiO2 microspheres were combined with  the chemical blowing agent to create a composite blowing agent. Using high  strength epoxy resin as the matrix, the study examined the effects of the  foaming process and blowing agent content on the properties of the resulting  epoxy foam materials.