| 초록 |
Silica aerogel and hollow glass microspheres are well known as inorganic thermal insulating particle due to their low thermal conductivity. Effects of this kind of particles on mechanical property, thermal stability and thermal insulating property in polyurethane (PU) films are investigated in this work. For this study, series of PU matrixes are prepared by prepolymer hydroxyl-terminated poly(propylene glycol) and poly(tetrahydrofuran) prepolymers reacted with isocyanate isophorone diisocyanate and poly[(phenyl isocyanate)-co-formaldehyde]. This work is focused on effect of inorganic particle on thermal insulation behavior of PU composites. In order to identify the ability of preventing thermal transfer, thermal conductivity (k) as an important heat insulating property of materials, is measured by a transient plane method, and analyzed by 5 theoretical models published in previous paper. |
