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Sound insulation/ damping material for floor of building

A shock-absorbing material and inter-floor technology, which can be used in buildings, building structures, floors, etc., can solve the problems of inability to effectively prevent the transmission of floor noise, inability to effectively absorb noise and vibration, and achieve excellent sound insulation performance

Active Publication Date: 2008-03-26
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the existing resin foam cannot effectively absorb and disperse (shock-absorb) the noise and vibration caused by the impact, so that it cannot effectively prevent the noise between floors. transfer

Method used

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  • Sound insulation/ damping material for floor of building
  • Sound insulation/ damping material for floor of building
  • Sound insulation/ damping material for floor of building

Examples

Experimental program
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Effect test

Embodiment 1 to 6

[0061] A polyurethane (PU) foam was used as a test piece in this example, and FIG. 3 is a scanning electron microscope (SEM) photograph of a section of the polyurethane foam used in this example.

[0062] Table 1 shows the physical properties and the single-value reduction of heavy noise according to the thickness of the above-mentioned polyurethane foam. In Table 1, the compressive strength of the polyurethane foam is based on KS M 6579, and the dynamic modulus of elasticity is the value measured based on KS F2868. The single value reduction of heavy noise is calculated by the following formula.

[0063] *Individual value reduction of heavy noise (C) = measured value of single value of impact noise (A) for floor only - measured value of single value of impact noise after construction of foam material (B)

[0064] In the formula, the single-value measured value (A) of the impact noise when only the floor is used is the value obtained by measuring according to the KS F2810-2 m...

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Abstract

The present invention relates to a floor sound proof / damping material containing resin foam material for building. A floor sound proof / damping material for building is provided in the present invention, it comprises an opening unit comprising resin foam material whose diameter is 0.05 mm to 2.0 mm, the open rate is more than 20 percent, density is 10kg / m<3> to 25g / m<3>, anti-pressure strength is 5kgf / 314cm<2> to 15kgf / 314cm<2>. The floor sound proof / damping material of the present invention can effectively absorb and disperse (damping) noise and vibration brought by collision, thereby effectively shade collision noise.

Description

technical field [0001] The present invention relates to floor sound insulation / shock-absorbing materials for buildings, in particular, it has excellent heat insulation and shock-absorbing properties, and can effectively disperse (shock-absorb) and absorb noise and vibration caused by impacts, and has excellent interlayer Floor sound insulation / shock-absorbing material for buildings with sound-insulating effects. Background technique [0002] Buildings, such as multi-storey houses, row house buildings, internally divided into many office buildings, apartments, schools, hospitals, dormitories and other co-living multi-storey buildings, have walls and floors with soundproofing material. The noise caused by the impact from upstairs brings a lot of trouble to the users downstairs. Therefore, shock-absorbing materials for shock absorption and sound-insulating materials for shielding noise are indispensable for floor construction of buildings. [0003] Korean Patent No. 0166993 ...

Claims

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Application Information

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IPC IPC(8): E04F15/20
CPCB32B27/065B32B2266/06B32B2307/102B32B2307/7265E04F15/203E04F2290/041
Inventor 李忠和金成灿金俊烨姜宪成申世永朴性赞金哲焕
Owner LG CHEM LTD
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