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Soundproof pad and preparation method thereof

A technology of sound insulation mat and ABS resin, which is applied in the direction of chemical instruments and methods, lamination, vehicle parts, etc., can solve the problems of easy pollution of the environment, strong smell of fiber felt, insufficient toughness of the facing layer, etc., and achieve environmental friendliness and light weight , good sound-absorbing effect

Inactive Publication Date: 2018-03-09
镇江长江汽车内饰件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The fiber mat reinforced with phenolic resin has a strong smell and is easy to pollute the environment; 2. The fiber mat is exposed, which is likely to cause volatile organic compounds (VOC) to exceed the standard, and the smell cannot meet the technical requirements of the main engine factory; 3. The facing layer has insufficient toughness; 4. , poor sound insulation

Method used

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  • Soundproof pad and preparation method thereof
  • Soundproof pad and preparation method thereof
  • Soundproof pad and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) Weigh 50 parts of PC resin, 40 parts of ABS resin, 5.0 parts of nano-silica, 0.50 parts of stearyl alcohol pentaerythritol diphosphite, and 0.45 parts of fatty acid amide. The relative molecular weight of the PC resin is 20000g / mol, the glass transition temperature is 135℃;

[0044] (2) Disperse nano-silica in purified water through an ultrasonic oscillation device to form an inorganic nano-particle dispersion;

[0045] (3) Add the obtained dispersion and ABS resin into the extruder, such as figure 1 As shown, the auxiliary function of the feed drive assembly 202 can make the material fall quickly along the feed hopper 201 and enter the barrel 501. At the same time, the drive motor 101 in the drive assembly 100 drives the screw 502 in the cylinder 501 to rotate through the transmission action of the reduction box 102 and the coupling 103. The material entering the barrel 501 is pelletized by the rotation of the screw 502. Among them, the motion parameters of all the c...

Embodiment 2

[0068] (1) Weigh 55 parts of PC resin, 45 parts of ABS resin, 4.5 parts of nano-silica, 0.45 parts of stearyl alcohol pentaerythritol diphosphite, and 0.50 parts of fatty acid amide. The relative molecular weight of the PC resin is 20000g / mol, the glass transition temperature is 135℃;

[0069] (2) Disperse nano-silica in purified water through an ultrasonic oscillation device to form an inorganic nano-particle dispersion;

[0070] (3) Add the obtained dispersion and ABS resin into the extruder, such as figure 1 As shown, the auxiliary function of the feed drive assembly 202 can make the material fall quickly along the feed hopper 201 and enter the barrel 501. At the same time, the drive motor 101 in the drive assembly 100 drives the screw 502 in the cylinder 501 to rotate through the transmission action of the reduction box 102 and the coupling 103. The material entering the barrel 501 is pelletized by the rotation of the screw 502. Among them, the motion parameters of all the c...

Embodiment 3

[0093] (1) Weigh 55 parts of PC resin, 40 parts of ABS resin, 5.0 parts of nano-silica, 0.50 parts of octadecyl alcohol pentaerythritol diphosphite, and 0.45 parts of fatty acid amide. The relative molecular weight of the PC resin is 20000g / mol, the glass transition temperature is 135℃;

[0094] (2) Disperse nano-silica in purified water through an ultrasonic oscillation device to form an inorganic nano-particle dispersion;

[0095] (3) Add the obtained dispersion and ABS resin into the extruder,

[0096] The main structure of the extruder involved in this embodiment mainly includes five component units, which are a drive system 100, a feed system 200, a control system 300, a support system 400, and a compression molding system 500, respectively.

[0097] Such as Figure 2~5 As shown, the driving system 100 includes a driving motor 101, a reduction box 102 and a coupling 103, which are connected in sequence to form a transmission mechanism. The feeding system 200 includes a feeding ...

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Abstract

The invention discloses a soundproof pad and a preparation method thereof. According to the preparation method, the soundproof pad is prepared from raw materials of PC resin, ABS resin, nano-silica, dioctadecyl pentaerythritol diphosphite and fatty acid amide. The soundproof pad is light, effective in sound absorption, environmentally friendly and recyclable, capable of meeting service requirements of customers well, and also meeting requirements on light weight, environmental-friendliness and high comfortableness of the modern life.

Description

Technical field [0001] The invention belongs to the technical field of sound insulation pads, and specifically relates to a method for preparing sound insulation pads and sound insulation pads. Background technique [0002] Car sound insulation is to improve the comfort of driving and riding: reduce noise, reduce sheet metal vibration, improve sound quality, heat insulation, paint protection, body sealing, etc. In short, sound insulation is to bring coolness and quietness to the cab. [0003] At present, automobile sound insulation pads are mainly made of recycled fiber felt and PU foam. The existing fiber felt sound insulation pads mainly have the following problems: [0004] 1. The phenolic resin reinforced fiber felt has a strong smell and is easy to pollute the environment; 2. The exposed fiber felt easily causes the volatile organic compound (VOC) to exceed the standard, and the smell cannot meet the technical requirements of the host factory; 3. The finish layer is insufficien...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08K13/02C08K3/36C08K5/524C08K5/20D01F8/06D01F8/14B32B37/12B32B3/12B32B27/02B32B27/12B32B27/36B32B27/30B32B27/32B32B33/00B32B7/12
CPCC08L69/00B32B3/12B32B5/08B32B5/26B32B27/12B32B27/302B32B27/308B32B27/365B32B33/00B32B37/12B32B2262/023B32B2262/0246B32B2262/0253B32B2262/0284B32B2262/14B32B2307/102B32B2605/08C08K2201/011D01F8/06D01F8/14C08L55/02C08K13/02C08K3/36C08K5/524C08K5/20
Inventor 黄良胜
Owner 镇江长江汽车内饰件有限公司