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Impact-resistant automobile front wall sound insulation pad and preparation method thereof

An impact-resistant and sound-insulating pad technology is applied in the field of automobile parts preparation, which can solve the problems of poor product strength, unfavorable vehicle lightweight, energy saving, and large product weight, etc., and achieve the effect of improving surface roughness.

Pending Publication Date: 2021-04-09
常州迪声声学科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing front wall sound insulation pads adopt separate heavy coating adsorption molding and cotton felt glue bonding. The disadvantages are: 1) The sound absorption performance index cannot meet the requirements; 2) The product is heavy, which is not conducive to the lightweight and energy saving of the whole vehicle ;3) The strength of the product is poor, especially long-sized products are easy to deform

Method used

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  • Impact-resistant automobile front wall sound insulation pad and preparation method thereof
  • Impact-resistant automobile front wall sound insulation pad and preparation method thereof

Examples

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Effect test

example 1

[0040] Weigh the pork bone and wash it and put it into a pulverizer to pulverize it to obtain the pulverized pork bone. The pulverized pork bone, water and protease are mixed in a mass ratio of 10:100:3 and then put into an enzymatic hydrolysis tank. Incubate the enzymolysis for 10 hours under the condition of ℃, and obtain the enzymolysis powder after the end of the enzymolysis;

[0041] Put the enzymolysis pulverized product obtained above into a carbonization furnace, heat up to 300°C under the protection of nitrogen, heat-preserve and carbonize for 3 hours, and obtain porous pig bone charcoal after carbonization;

[0042] Weigh the straw and put it into a ball mill, mill it for 1 hour, pass it through a 200-mesh sieve, collect the sieved straw powder, then mix the sieved straw powder and porous pig bone charcoal at a mass ratio of 1:2 and put it into ultrasonic vibration In the instrument, after 3 hours of ultrasonic vibration treatment at a frequency of 25kHz, the modifie...

example 2

[0047] Weigh the pig bone and wash it and put it into a pulverizer to pulverize it to obtain the pulverized pig bone. The pulverized pig bone, water and protease are mixed in a mass ratio of 10:100:3 and then put into an enzymatic hydrolysis tank. Incubate the enzymolysis for 11 hours under the condition of ℃, and obtain the enzymolysis powder after the end of the enzymolysis;

[0048] Put the enzymolysis pulverized product obtained above into a carbonization furnace, heat up to 350°C under the protection of nitrogen, heat-preserve and carbonize for 3 hours, and obtain porous pig bone charcoal after carbonization;

[0049] Weigh the straw and put it into a ball mill pulverizer, pass it through a 200-mesh sieve after ball milling for 2 hours, collect the sieved straw powder, then mix the sieved straw powder and porous pig bone charcoal according to the mass ratio of 1:2 and put it into ultrasonic vibration In the instrument, the modified porous pig bone charcoal was obtained af...

example 3

[0054] Weigh the pork bone and wash it and put it into a pulverizer to pulverize it to obtain the pulverized pork bone. The pulverized pork bone, water and protease are mixed in a mass ratio of 10:100:3 and then put into an enzymatic hydrolysis tank. Incubate the enzymatic hydrolysis for 12 hours under the condition of ℃, and obtain the enzymatic crushed product after the end of the enzymatic hydrolysis;

[0055] Put the enzymolysis pulverized product obtained above into a carbonization furnace, heat up to 400°C under the protection of nitrogen, heat-preserve and carbonize for 4 hours, and obtain porous pig bone charcoal after carbonization;

[0056] Weigh the straw and put it into a ball mill pulverizer, pass it through a 200-mesh sieve after ball milling for 2 hours, collect the sieved straw powder, then mix the sieved straw powder and porous pig bone charcoal according to the mass ratio of 1:2 and put it into ultrasonic vibration In the instrument, the modified porous pig b...

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Abstract

The invention relates to an impact-resistant automobile front wall sound insulation pad and a preparation method thereof, and belongs to the technical field of automobile part preparation. The EVA resin and the polyethylene glycol terephthalate are used as raw materials, and the modified porous pig bone charcoal and the modified natural bamboo fibers are added to prepare the sound insulation pad, so that the sound insulation performance and the impact resistance of the finally prepared sound insulation pad are greatly improved, and the sound insulation pad has a wide application prospect.

Description

technical field [0001] The invention relates to an impact-resistant automobile front wall sound insulation pad and a preparation method thereof, belonging to the technical field of automobile parts preparation. Background technique [0002] At present, automotive interior parts are generally installed on the roof, trunk, and under the floor of the car to play the role of heat insulation, sound insulation, beauty and sound absorption. In the era of more and more pursuit of high performance, environmental protection, energy saving, lightweight, and individualization, the interior of a car, like the shape of a car, has become an important factor for people to choose a car. Therefore, the requirements for automotive interior parts are getting higher and higher. [0003] In the prior art, performance indicators such as high sound absorption, low grammage, and high strength of the cowl sound-insulating pad become bottlenecks in the development of this type of interior trim, restr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L67/02C08L97/02C08K7/24C08H8/00C01B32/05
CPCC08L23/0853C08H8/00C01B32/05C08L2205/03C08L2205/16C08L67/02C08L97/02C08K7/24
Inventor 蒋成虎李昀
Owner 常州迪声声学科技有限公司
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