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Hot-melt environment-friendly deadening felt film for automobile and preparation method thereof

A hot-melt, sound-insulating felt technology, applied in the rubber field, can solve the problems of excessive VOC volatiles, increased cabin noise, and increased body vibration, and achieves the effects of improving driving comfort, reducing vehicle vibration, and good damping.

Pending Publication Date: 2020-08-07
XUZHOU COLLEGE OF INDAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, some car sound insulation felt films on the market have the following three major pain points. 1. The product has peculiar smell, voc volatiles exceed the standard, and the product environmental protection does not meet the standard; 2. The product has poor sound insulation performance and cannot effectively reduce the noise in the cabin; 3. The product has low mechanical properties , poor aging performance, and the large temperature difference between the four seasons in the cabin, resulting in a decrease in the mechanical properties of the product, or even embrittlement, and a low service life. The normal performance is that the vibration of the car body increases significantly after the car has been used for three to five years, and the noise in the cabin increases significantly.

Method used

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  • Hot-melt environment-friendly deadening felt film for automobile and preparation method thereof
  • Hot-melt environment-friendly deadening felt film for automobile and preparation method thereof
  • Hot-melt environment-friendly deadening felt film for automobile and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 The influence of different raw material components on the performance of felt film

[0023] (1) Sample preparation

[0024] Keep the same amount of heavy calcium, carbon black, VOC masking agent, white oil, antioxidant 1010, antioxidant 168 and stearic acid in the raw materials, which are respectively: 30 parts by weight of heavy calcium, 10 parts by weight of carbon black, and 10 parts by weight of VOC masking agent 5 parts by weight, 4 parts by weight of white oil, 1 part by weight of antioxidant 1010, 1 part by weight of antioxidant 168 and 1 part by weight of stearic acid; adjust the different consumptions of EVA, POE, EPDM and PE in the raw material, See Table 1 for details.

[0025] Put the above-mentioned raw materials in an internal mixer, mix them evenly at 170°C, and then evenly feed them into the extruder, and then extrude them into a three-roll calender through a die at 200°C, and then press them into sheets. Thereby, three different hot-melt ...

Embodiment 2

[0053] A hot-melt environmentally friendly soundproof felt film for automobiles, made of the following raw materials in parts by weight: 25 parts of EVA, 25 parts of POE, 20 parts of EPDM, 10 parts of PE, 20 parts of heavy calcium, 5 parts of carbon black, and VOC masking agent 5 parts, 3 parts of white oil, 1 part of antioxidant 1010, 1 part of antioxidant 168 and 0.5 part of stearic acid.

[0054] Put the above-mentioned raw materials in an internal mixer, mix evenly at 170°C, and then evenly feed them into the extruder, and then extrude them into a three-roll calender through a die at 200°C, and then press them into sheets, so that A hot-melt environmental protection sound insulation felt film was prepared.

Embodiment 3

[0056] A hot-melt environmentally friendly soundproof felt film for automobiles, made of the following raw materials in parts by weight: 40 parts of EVA, 40 parts of POE, 25 parts of EPDM, 15 parts of PE, 40 parts of heavy calcium, 20 parts of carbon black, and VOC masking agent 5 parts, white oil 4 parts, antioxidant 1010 1.5 parts, antioxidant 168 1.5 parts and stearic acid 1.5 parts.

[0057] Put the above-mentioned raw materials in an internal mixer, mix evenly at 170°C, and then evenly feed them into the extruder, and then extrude them into a three-roll calender through a die at 200°C, and then press them into sheets, so that A hot-melt environmental protection sound insulation felt film was prepared.

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Abstract

The invention belongs to the technical field of rubber, and particularly relates to a hot-melt environment-friendly deadening felt film for an automobile and a preparation method thereof. A damping rubber sheet is prepared from the following raw materials in parts by weight: 25-40 parts of EVA, 25-40 parts of POE, 20-25 parts of EPDM, 10-15 parts of PE, 20-40 parts of heavy calcium carbonate, 5-20parts of carbon black, 5 parts of a VOC shielding agent, 3-4 parts of white oil, 2-3 parts of an anti-aging agent and 0.5-1.5 parts of stearic acid. The damping rubber sheet prepared by the formula has good sound insulation performance, mechanical performance and anti-aging performance, is green and environment-friendly, and can effectively reduce the noise in a vehicle, can reduce the vibrationsense of a vehicle body and can comprehensively improve the driving comfort.

Description

technical field [0001] The invention belongs to the technical field of rubber, and in particular relates to a hot-melt environmentally friendly sound-insulating felt film for automobiles and a preparation method thereof. Background technique [0002] Cars have gradually entered thousands of households. With the improvement of living standards, people's demand for quality of life is also increasing. The sound insulation felt film for automobiles can effectively reduce the noise of the cabin, reduce the vibration of the vehicle, and improve the driving comfort. At present, some car sound insulation felt films on the market have the following three major pain points. 1. The product has peculiar smell, voc volatiles exceed the standard, and the product environmental protection does not meet the standard; 2. The product has poor sound insulation performance and cannot effectively reduce the noise in the cabin; 3. The product has low mechanical properties , Poor aging performance...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/16C08L23/06C08L91/06C08K3/26C08K3/04C08K5/09C08K5/134C08K5/526C08K13/02C08J5/18
CPCC08J5/18C08J2323/08C08J2423/08C08J2423/16C08J2423/06C08K2003/265C08K3/04C08K5/09C08K5/1345C08K5/526C08K13/02
Inventor 杨陈王再学徐云慧孙婷婷柯梦圆孙媛媛杨树林钱德利丁勇章林莉李鹏臧亚南崔媛媛冯骏
Owner XUZHOU COLLEGE OF INDAL TECH
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