| 摘要 |
PROBLEM TO BE SOLVED: To provide a lightweight wall material excellent in muffling performance, the humidity adjusting function, and heat insulating performance, and having durability. SOLUTION: This wall material is composed of a porous hardening material particle aggregate having a fine continuous pore by bonding spherical resin particles by hardening an O/W type aqueous dispersive body composed of a radical polymerization type thermosetting resin. This wall material is composed of a porous body having an effective pore diameter of 0.1 to 1.0μm, and porosity of 10 to 40 volume %, and is an aggregate by bonding mutual resin particles in the contact part. The resin particles are put in an easily vibration state, and are excellent in absorption efficiency of vibrational energy, and are excellent in a muffling characteristic of a low frequency not more than 400 Hz.
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