How to make soundproofing material

Abstract

The present invention relates to a manufacturing method for acoustic foam. More specifically, the manufacturing method for acoustic foam including resin foam containing an open cell and a closed cell includes physically blowing up the closed cell by applying impact to one or both sides of the acoustic foam in a contact or non-contact manner. The method improves shock-absorption, mechanical strength, workability, heat insulation, and noise blocking / dispersion of the acoustic foam.

Description

technical field [0001] The present invention relates to a method for manufacturing a sound-insulating material, and more specifically relates to a material with excellent cushioning properties, mechanical strength, constructability and heat insulation, especially capable of effectively absorbing, dispersing and / or eliminating noise caused by impact and / or vibrating soundproofing materials. Background technique [0002] In complex multi-story buildings such as villas, mansions, apartments, schools, hospitals, and dormitories in the form of multi-family houses and townhouses, there are people living on the upper and lower floors, so impacts applied to the upper floors and / or damage caused by the above impacts The noise brings great inconvenience to the people living on the lower floors. The above-mentioned impact and noise are also called floor impact sound, which refers to the sound and impact generated by the vibration of the floor caused by the falling and moving of object...

AI Technical Summary

Problems solved by technology

[0002] In complex multi-story buildings such as villas, mansions, apartments, schools, hospitals, and dormitories in the form of multi-family houses and townhouses, there are people living on the upper and lower floors, so impacts applied to the upper floors and / or damage caused by the above impacts Noise, which brings great inconvenience to the people living on the lower floors

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