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A kind of sound-absorbing and heat-insulating material for vehicles, its preparation method, and the prepared sound-insulating pad for vehicles

A technology of thermal insulation material and sound insulation pad, applied in chemical instruments and methods, vehicle parts, lamination and other directions, can solve the problems of aging, high cost, low sound absorption performance, etc., to meet the flame retardant performance, improve sound absorption performance, sound absorption The effect of improved performance

Inactive Publication Date: 2015-07-29
武汉新环球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

This kind of fiber felt sound insulation pad mainly has the following problems: 1. The fiber felt reinforced with phenolic resin has a strong smell and is easy to pollute the environment; 2. The fiber felt is exposed, which is likely to cause unqualified volatile organic compounds (VOC), and the smell cannot satisfy the host. Factory technical requirements; 3. Although materials such as glass fiber can meet good flame retardant performance, the sound absorption performance is low
[0004] Chinese patent application CN 103031666 A discloses a sound and heat insulation material, the sound and heat insulation material is made of glass fiber and nylon short fiber as raw materials, but the sound and heat insulation material The main purpose of thermal materials is to solve the properties of non-degradable, aging, sound insulation and heat insulation, etc., and no solution is proposed for the flame retardancy
However, the production process of this material is complicated and the cost is high

Method used

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  • A kind of sound-absorbing and heat-insulating material for vehicles, its preparation method, and the prepared sound-insulating pad for vehicles
  • A kind of sound-absorbing and heat-insulating material for vehicles, its preparation method, and the prepared sound-insulating pad for vehicles
  • A kind of sound-absorbing and heat-insulating material for vehicles, its preparation method, and the prepared sound-insulating pad for vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: Please refer to the attached figure 1 , a sound-absorbing and heat-insulating material for vehicles, the components of the sound-absorbing and heat-insulating material include: glass fiber 1, PP fiber 2, and PET fiber 3; the sound-absorbing and heat-insulating material is divided into five layers, which are: Glass fiber layer; the second layer 2 is a mixed fiber of glass fiber, PP fiber and PET fiber; the middle layer 3 is a mixed fiber of PP material and PET; the fourth layer 4 is a combination of glass fiber, PP fiber and PET fiber The mixed fiber; the surface layer 5 is glass fiber; the five layers are melted and connected into one.

[0028] In this embodiment, the weight ratio of the glass fiber 1 , the PP fiber 2 and the PET fiber 3 is: glass fiber 1 : PP fiber 2 : PET fiber 3 =6:2:2.

[0029] In this embodiment, the weight percentage of glass fiber 1 is 60%; the weight percentage of PP fiber 2 is 20%; the weight percentage of PET fiber 3 is 20%.

[...

Embodiment 2

[0031] Example 2: A sound-absorbing and heat-insulating material for vehicles. The components of the sound-absorbing and heat-insulating material include: PP, PET, and glass fiber; the sound-absorbing and heat-insulating material is divided into five layers, which are: bottom glass fiber; the second layer is The mixed fiber of glass fiber, PP fiber and PET fiber; the middle layer is the mixed fiber of PP material and PET; the fourth layer is the mixed fiber of glass fiber, PP fiber and PET fiber; the surface layer is glass fiber; The layers are fused into one.

[0032] In this embodiment, the weight ratio of the glass fiber, PP and PET is: glass fiber:PP:PET=8:1:1.

[0033] In this embodiment, the weight percentage of the glass fiber is 80%; the weight percentage of PP is 10%; the weight percentage of PET is 10%.

[0034]In this embodiment, the diameter of the glass fiber is between 7-11 μm, and the length is between 45-70 mm; the PP is fibrous, and the diameter of the PP f...

Embodiment 3

[0035] Example 3: A sound-absorbing and heat-insulating material for vehicles. The components of the sound-absorbing and heat-insulating material include: PP, PET, and glass fiber; the sound-absorbing and heat-insulating material is divided into five layers, which are: bottom glass fiber; the second layer is The mixed fiber of glass fiber, PP fiber and PET fiber; the middle layer is the mixed fiber of PP material and PET; the fourth layer is the mixed fiber of glass fiber, PP fiber and PET fiber; the surface layer is glass fiber; The layers are fused into one.

[0036] In this embodiment, the weight percentage of the glass fiber is 60%; the weight percentage of PP is 20%; the weight percentage of PET is 20%.

[0037] In this embodiment, the glass fiber has a diameter of 7-μm and a length of 45 mm; the melt-blown PP fiber has a diameter of 4 μm and a length of 40 mm; the melt-blown PET fiber has a diameter of 4 μm and a length of 40 mm.

[0038] The car uses sound-absorbing ...

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Abstract

The invention discloses a vehicular sound-absorption and thermal-insulation material and a preparation method of the vehicular sound-absorption and thermal-insulation material; the vehicular sound-absorption and thermal-insulation material comprises the components including PP, PET and glass fibres; the vehicular sound-absorption and thermal-insulation material is divided into five layers sequentially including a bottom glass fibre layer, a second mixed fibre layer comprising glass fibres, PP fibres and PET fibres, a medium mixed fibre layer comprising a PP material and PET, a fourth mixed fibre layer comprising the glass fibres, the PP fibres and the PET fibres, and a surface glass fibre layer; and the five layers are molten and connected into a whole. By means of the manner, the vehicular sound-absorption and thermal-insulation material disclosed by the invention not only can satisfy the flame-retardant property but also is capable of improving the sound-absorption property; in addition, on the basis of that of a traditional sound-absorption and thermal-insulation material, the sound-absorption property is increased by 30-50%.

Description

technical field [0001] The invention relates to the technical field of automotive interior parts, and more specifically relates to a sound-absorbing and heat-insulating material for an engine compartment of an automobile. Background technique [0002] In the era of more and more pursuit of high performance, environmental protection, light weight and comfort, car interior has become an important factor for people to choose a car just like car appearance, so the requirements for car interior parts are getting higher and higher. The comfort of the car interior is also reflected in functional features such as shock absorption, sound absorption, and heat insulation. In the prior art, automobile sound-insulating pads made of various sound-insulating materials are generally utilized to realize sound-absorbing and shock-absorbing effects when the automobile is running, so as to ensure the comfort of passengers in the car. Car sound insulation pads can be applied to various parts of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B17/02B32B17/10B32B27/02B32B37/04B60R13/08
CPCB32B17/02B32B17/10B32B37/04B32B2262/0253B32B2262/0276B32B2262/101B32B2307/102B32B2307/304B32B2307/3065B32B2605/003B60R13/0815B60R13/0838
Inventor 黄姫曹阳成杜斌王乐文强
Owner 武汉新环球汽车内饰件有限公司
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