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Recoverable ground felt special for automobile

A carpet and automobile technology, applied to vehicle parts, special positions of vehicles, synthetic resin layered products, etc., can solve the problems of complex manufacturing process, inability to recycle, increase weight, etc., and achieve excellent sound insulation performance and sound absorption performance excellent effect

Pending Publication Date: 2022-05-06
SEOYON E HWA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first coating layer is for molding, and the second coating layer is for sound insulation. Usually, this molding and sound insulation performance is controlled by increasing weight. Therefore, in order to improve performance, weight has to be increased, thereby affecting vehicle fuel consumption and CO. 2 Emissions have an adverse effect
In addition, due to the use of different materials for each layer, not only the manufacturing process is complicated, but also it cannot be recycled.

Method used

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  • Recoverable ground felt special for automobile
  • Recoverable ground felt special for automobile
  • Recoverable ground felt special for automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0051] 1. The automobile special felt (embodiment) according to the invention is prepared, which is composed of skin layer, formed felt layer and sound-absorbing felt layer as shown in Table 2 below.

[0052] [table 2]

[0053]

[0054]

[0055] 2. For comparative evaluation, a traditional automobile special felt was prepared, which is composed of skin layer, molding coating layer and sound insulation coating layer with the composition listed in Table 3 below.

[0056] [table 3]

[0057] classification Area density form Thickness (T) Skin layer 600克 / 米 2

experiment example

[0059] 1. Evaluation of sound absorption performance

[0060] In order to evaluate the sound absorption performance of the prepared embodiment and comparative example, a random event mode evaluation meeting the ISO 354 standard was carried out in a small reverberation room with uniform sound pressure distribution.

[0061] The evaluation results of the sound absorption performance are as follows: Figure 5 It can be confirmed that the embodiment of the invention has better sound absorption performance in the overall frequency range compared with the traditional comparative example.

[0062] 2. Sound insulation performance evaluation

[0063] The sound insulation performance evaluation of the prepared examples and comparative examples is divided into their own sound insulation performance and the sound insulation performance when they are attached to the steel plate with the physical properties in Table 4 below. As a reference, the physical properties of the steel plate are as fol...

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Abstract

The invention relates to a recyclable special ground mat for an automobile, in particular to a special ground mat for an automobile, which is light in weight and good in sound absorption and sound insulation performance because various materials forming multiple layers are in the same series, and discarded waste materials and products after forming can be recycled.

Description

technical field [0001] The invention relates to a recyclable special carpet for automobile. Specifically, since the materials constituting multiple layers are the same series, all waste materials and products discarded after molding can be recycled. In addition, it is also a special carpet for automobile with light weight, sound absorption and sound insulation performance. Background technology [0002] The special carpet for automobile is installed on the bottom plate of the car to block the noise from the floor. [0003] The traditional automobile special felt is usually composed of three layers: skin layer, the first coating layer made of polyethylene (PE) and the second coating layer made of ethylene vinyl acetate (EVA). The first coating layer is for molding and the second coating layer is for sound insulation. This molding and sound insulation performance is usually controlled by increasing the weight. Therefore, in order to improve the performance, the weight has to be inc...

Claims

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Application Information

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IPC IPC(8): B32B27/02B32B27/32B32B27/36B32B7/02B32B27/12B32B33/00B60N3/04
CPCB32B5/022B32B5/02B32B7/02B32B5/26B32B33/00B60N3/048B32B2262/0284B32B2262/0253B32B2307/102B32B2307/10B32B2307/718B32B2605/08B60N3/042B32B5/06B32B7/12B32B2262/0276
Inventor 朴玄濬
Owner SEOYON E HWA
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