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Polyurethane composite sheet for automotive headliner and preparation method of polyurethane composite plate

A technology for car roofs and composite panels, applied in the field of polyurethane composites, which can solve the problems of high weight, poor adhesion, and poor sound-absorbing effect, and achieve the effects of low weight, good adhesion, and good sound-absorbing effect

Inactive Publication Date: 2017-12-08
江苏赛胜新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One of the technical problems to be solved by the present invention is the problems of high grammage, poor cohesiveness and poor sound-absorbing effect of the polyurethane sheet in the prior art, and a new polyurethane composite sheet for the roof of the car is provided

Method used

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  • Polyurethane composite sheet for automotive headliner and preparation method of polyurethane composite plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A polyurethane composite sheet used for the roof of the car, from top to bottom is the first layer of PE film (the weight is 50g / m 2 , the melting point is 100°C, the thickness is 20um), the first layer of glass fiber (the diameter of the single filament is 12um, the thickness is 800um), the first layer of polyethylene film (the weight is 15g / m 2 , the melting point is 115°C), the thickness is 50um, the first layer of linear low density polyethylene powder, the thickness is 80um, the second layer of polyethylene film (the weight is 15g / m 2 , with a melting point of 115°C) with a thickness of 50um, a polyurethane sheet (with a thickness of 5mm), and a third layer of polyethylene film (with a weight of 15g / m 2 , with a melting point of 115°C) with a thickness of 50um, a second layer of linear low-density polyethylene powder with a thickness of 80um, a fourth layer of polyethylene film (with a grammage of 15g / m 2 , melting point is 115°C) thickness is 50um, the second lay...

Embodiment 2

[0035] A polyurethane composite sheet used for the roof of the car, from top to bottom is the first layer of PE film (the weight is 35g / m 2 , the melting point is 110°C, the thickness is 60um), the first layer of glass fiber (the diameter of the single filament is 3um, the thickness is 250um), the first layer of polypropylene polymer film (the weight is 25g / m 2 , melting point is 130°C), the thickness is 100um, the first layer of ultra-high molecular weight polyethylene powder, the thickness is 20um, the second layer of polypropylene polymer film (gram weight is 25g / m 2 , melting point is 130°C), thickness is 100um, polyurethane sheet (thickness is 15mm), second layer of PE film (gram weight is 35g / m 2 , with a melting point of 110°C and a thickness of 60um), the second layer of ultra-high molecular weight polyethylene powder, with a thickness of 20um, and the third layer of polypropylene polymer film (weight 25g / m 2 , the melting point is 130°C), the thickness is 100um, the ...

Embodiment 3

[0037] A polyurethane composite sheet used for the roof of the car, from top to bottom is the first layer of spunbond non-woven fabric (thickness is 0.3mm), the first layer of PE film (gram weight is 40g / m 2 , with a melting point of 105°C and a thickness of 40um), the first layer of glass fiber (the diameter of the monofilament is 5um, and the thickness is 600um), the first layer of polyamide polymer film (the weight is 20g / m 2 , melting point is 120℃), the thickness is 80um, the first layer of linear polyethylene powder, the thickness is 40um, the second layer of polyamide polymer film (gram weight is 20g / m 2 , melting point is 120°C), thickness is 80um, polyurethane sheet (thickness is 10mm), the second layer of PE film (gram weight is 40g / m 2 , with a melting point of 105°C and a thickness of 40um), a second layer of linear polyethylene powder with a thickness of 40um, a second layer of spunbonded non-woven fabric (thickness of 0.3mm); oven baking and pressing at a tempera...

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Abstract

The invention relates to a polyurethane composite sheet for an automotive headliner and a preparation method of the polyurethane composite plate, and mainly solves the problems of high gram weight, low release force and poor sound absorption effect of a polyurethane sheet in the prior art. The technical scheme adopted by the invention is that the polyurethane composite sheet for the automotive headliner comprises at least one PE (Polyethylene) membrane layer, at least one fiberglass layer, at least one PE powder layer, at least one polymer membrane layer, at least one polyurethane foam layer and at least one nonwoven fabric layer, wherein the polymer membrane is arranged between fiberglass and PE powder and / or between the PE powder and polyurethane foam; the gram weight of the polymer membrane is 15 to 25 g / m<2>, and the melting point is 115 to 130 DEG C. According to the polyurethane composite sheet and the preparation method thereof, the problems are well solved, and the preparation method can be used for industrial production of the polyurethane composite sheet for the automotive headliner.

Description

technical field [0001] The invention relates to a polyurethane composite sheet and a preparation method thereof, in particular to a polyurethane composite sheet used for the roof of an automobile [0002] Plates and methods for their preparation. Background technique [0003] Polyurethane composite panels have the characteristics of sound absorption, heat insulation, light weight, easy installation, and no irritating odor, and have become an important product in the domestic automobile market. In the prior art, the polyurethane multi-layer composite board is to lay the non-woven fabric roll on the workbench of the composite line, sprinkle chopped glass fiber and solid hot-melt adhesive on the non-woven fabric in turn, and then put it on the polyurethane foam, Sprinkle chopped glass fiber and solid hot-melt adhesive on the polyurethane board in turn, heat and roll to compound, and obtain a multi-layer composite board after cooling. The grammage of the polyurethane composite ...

Claims

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Application Information

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IPC IPC(8): B32B37/06B32B27/32B32B27/12B32B27/34B32B27/40B32B27/08B32B17/02B32B17/10B32B17/06
CPCB32B37/06B32B5/02B32B5/022B32B27/08B32B27/12B32B27/32B32B27/34B32B27/40B32B2262/101B32B2307/102B32B2307/718
Inventor 吴迪朱志浩刘钟
Owner 江苏赛胜新材料科技有限公司