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A kind of light-weight fiber composite plate for sound insulation and noise reduction for vehicles and its preparation method

A composite sheet and lightweight fiber technology, applied in chemical instruments and methods, lamination, lamination devices, etc., can solve problems such as insufficient strength, achieve the effects of improving production efficiency, saving production costs, and improving comprehensive mechanical properties

Active Publication Date: 2016-08-03
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on the above-mentioned defects and deficiencies of the prior art, the present invention introduces the hollow fiber with good thermal insulation effect into the glass fiber reinforced polypropylene fiber light board, which not only overcomes the defect of insufficient material strength, but also achieves the sound insulation of vehicle materials Noise reduction requirements, it has a good application prospect in interior materials such as car roofs

Method used

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  • A kind of light-weight fiber composite plate for sound insulation and noise reduction for vehicles and its preparation method
  • A kind of light-weight fiber composite plate for sound insulation and noise reduction for vehicles and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0026] figure 1 It is a schematic process flow diagram of an embodiment of the present invention.

[0027] First weigh 100kg of polypropylene fiber with a length of 80-100mm, and 50kg of glass fiber with a length of 80-100mm, and mix the polypropylene fiber and glass fiber evenly; then put the mixed fiber into the opener for opening treatment; The loosely treated mixed fibers are transported to the carding machine for carding and forming, and then sent to the laminating machine for cross-laying; the laid fiber web is transported to the needle punching machine for needle punching to prepare fiber composite felt coils. The needle punching described above includes pre-needle punching and main needle punching; then the fiber composite felt coil is heated and plasticized for the first time through an infrared oven with a temperature of 160°C and pre-pressed with a pre-pressing roller. After that, it is heated and plasticized for the second time through an electric heating wire ove...

Embodiment 2

[0029] First weigh 100kg of polypropylene fibers with a length of 60-80mm, 50kg of glass fibers with a length of 60-80mm, and 50kg of hollow PP fibers with a length of 60-80mm, and mix the polypropylene fibers, glass fibers and hollow PP fibers evenly; The mixed fibers are put into the opening machine for opening treatment; the opened mixed fibers are transported to the carding machine for carding and forming, and then sent to the web lapper for cross-laying; the laid fiber web is transported to the needle The needle-punched felting machine is used to prepare the fiber composite felt roll, which includes pre-needle felt and main needle-punched felt; then the fiber composite felt roll is passed through an infrared oven at a temperature of 170°C. The first heating and plasticizing and pre-pressing molding with pre-pressing rollers, and then the second heating and plasticizing through an electric heating wire oven at a temperature of 200 ° C, and at the same time covering the uppe...

Embodiment 3

[0031] First weigh 100kg of polypropylene fibers with a length of 90-100mm, 100kg of glass fibers with a length of 90-100mm, and 50kg of hollow PET fibers with a length of 90-100mm, and uniformly mix the polypropylene fibers, glass fibers and hollow PET fibers; The mixed fibers are put into the opening machine for opening treatment; the opened mixed fibers are transported to the carding machine for carding and forming, and then sent to the web lapper for cross-laying; the laid fiber web is transported to the needle The needle-punched felting machine is used to prepare the fiber composite felt roll, which includes pre-needle felt and main needle-punched felt; then the fiber composite felt roll is passed through an infrared oven at a temperature of 180°C. The first heating and plasticizing and pre-pressing molding with pre-pressing rollers, and then the second heating and plasticizing through the electric heating wire oven with a temperature of 220 ° C, and at the same time cover...

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Abstract

The invention discloses a sound isolation and noise reduction light-weight fiber composite plate for a vehicle. The composite plate comprises the following components in parts by weight: 100 parts of polypropylene fibers, 50-100 parts of glass fibers and 0-50 parts of hollow fibers. The invention also discloses a preparation method for the sound isolation and noise reduction light-weight fiber composite plate for the vehicle. According to the sound isolation and noise reduction light-weight fiber composite plate for the vehicle, the hollow fibers with good heat preservation and heat isolation effects are introduced into a glass fiber enhanced polypropylene fiber light-weight plate, so that the comprehensive mechanical property of the plate is improved, and requirements on sound isolation and noise reduction of the plate for the vehicle are met; furthermore, the light weight of the vehicle is facilitated; internal decoration materials in a vehicle ceiling have an extremely good application prospect; the plate is easy to form; the processing technology is simple; the production efficiency can be improved; the production cost can be saved; the industrialization is easy to implement.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a sound-insulating and noise-reducing lightweight fiber composite plate for vehicles and a preparation method thereof. Background technique [0002] With the development of the automobile industry, people have higher and higher requirements for the safety and comfort of automobiles, and research on new automobile materials with excellent performance has become a research focus and goal in this field. When the car is running, the traffic noise from the outside, the noise from the car body itself, and the sound absorption effect of the car's audio system will all affect the comfort of the car. Existing car interiors have poor performance in terms of sound insulation and noise reduction. Therefore, the development of sound insulation and noise reduction functions of automotive interior materials is of great significance. At the same time, as the automobile ind...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B17/02B32B17/10B32B37/15B29C43/00
Inventor 周一新
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD