| 摘要 |
PURPOSE: An interlayer sound insulating material with improved durability is provided to reinforce durability and to improve the modulus of elasticity by arranging a bridge like a foaming material or a damping material orthogonally or circularly to a sound insulating material, to maintain sound insulating and shock absorbing efficiencies without the physical property change of the existing interlayer sound insulating material and to prevent defects like deflection, cracks, etc. CONSTITUTION: An interlayer sound insulating material(100) with improved durability includes: a sound insulating material(110) having a single layer or multilayer structure; a through hole formed through the sound insulating material and having the fixed arrangement structure; and a bridge(130) inserted to the through hole to form a circular or orthogonal arrangement structure and made with a foaming material or a damping material to improve the modulus of elasticity of the sound insulating material.
|
