| 摘要 |
<p>PROBLEM TO BE SOLVED: To recycle it as a single material system by using a windable heat insulating material which contains a synthetic fiber material and whose heat conductivity determined according to DIN 4108 Part 1 is not more than a specific value and which has fire resistant behavior of DIN 4102 Part 1 corresponding to a kind of building material B1. SOLUTION: Synthetic fiber is composed of load resistant fiber and binding fiber made of polyester, preferably, polyethylene telephthalate, and the binding fiber exists at least in a part of a surface of polyester having a melting point lower than a melting point of the load resistant fiber. In this heat insulating material, a thickness is 30 to 200mm, and a Metsuke unit is 400 to 300g/m<2> , and density is 15 to 50kg/m<3> . Therefore, a heat insulating material whose heat conductivity determined according to DIN 4108 Part 1 is not more than 0.04W/m*K, and which has fire resistant behavior (DIN 4102 Part 1) corresponding to a kind of building material B1 and contains a single material system of a synthetic fiber material and can be recycled, can be obtained.</p> |
