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Flame-retardant light GMT composite board for interior and exterior ornaments of automobile and preparation method of flame-retardant light GMT composite board

A composite sheet, lightweight technology, used in vehicle parts, applications, household appliances, etc., can solve problems such as little flame retardant effect

Inactive Publication Date: 2020-07-07
浙江华江科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flame retardant method is only to carry out appropriate flame retardant treatment on the surface of the GMT-based felt compounded with a flame retardant film. Although this flame retardant treatment method can achieve a certain effect in the initial stage of material fire prevention and ignition, when the flame burns through the flame retardant skin layer When it burns to the GMT core layer, the flame retardant effect will be negligible

Method used

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  • Flame-retardant light GMT composite board for interior and exterior ornaments of automobile and preparation method of flame-retardant light GMT composite board
  • Flame-retardant light GMT composite board for interior and exterior ornaments of automobile and preparation method of flame-retardant light GMT composite board

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This embodiment is a kind of flame-retardant light-weight GMT composite sheet material used for preparing the car bottom guard plate, including fiber mat and upper and lower surface layers, the upper surface layer is a non-woven fabric, the lower surface layer is a reinforced composite film, and the fiber mat is made of glass fiber, polyester Composed of propylene fiber and expanded graphite flame retardant powder, glass fiber accounts for 30wt% of the total weight of the fiber mat, expanded graphite accounts for 10wt% of the total weight of the fiber mat, expanded graphite is evenly dispersed in the fiber mat, and the area density of the flame retardant lightweight GMT composite sheet 1600g / m 2 , bulk density is 0.5g / cm 3 .

[0029] After the non-woven cross-lapping process and before the acupuncture process, the expanded graphite flame retardant powder is evenly dispersed on the surface of the fluffy fiber felt by the powdering process, and then the expansion of the ...

Embodiment 2

[0037] This embodiment is a kind of flame-retardant lightweight GMT composite sheet material for preparing the inner lining of the automobile roof, including fiber felt and upper and lower surface layers, the upper surface layer is non-woven fabric, the lower surface layer is polyethylene adhesive film, and the fiber felt is made of basalt Composed of fiber, ES fiber and magnesium hydroxide flame retardant powder, Wuyan fiber accounts for 55wt% of the total weight of the fiber mat, magnesium hydroxide accounts for 20wt% of the total weight of the fiber mat, magnesium hydroxide is evenly dispersed in the fiber mat, and is flame retardant and lightweight The surface density of GMT composite sheet is 1000g / m 2 , bulk density is 0.3g / cm 3 . .

[0038] After the non-woven cross-lapping process and before the acupuncture process, the magnesium hydroxide flame retardant powder is uniformly dispersed on the surface of the fluffy fiber felt by the powdering process, and then the surf...

Embodiment 3

[0046] This embodiment is a kind of flame-retardant lightweight GMT composite board for preparing the car trunk shelf board, including fiber felt and upper and lower surface layers, the upper surface layer is non-woven fabric, the lower surface layer is polypropylene adhesive film, fiber felt Composed of hemp fiber, PET fiber and phosphorus-nitrogen composite intumescent flame retardant powder, hemp fiber accounts for 45wt% of the total weight of the fiber mat, the intumescent flame retardant powder accounts for 30wt% of the total weight of the fiber mat, and the intumescent flame retardant powder is evenly dispersed in the fiber mat Among them, the areal density of the flame-retardant lightweight GMT composite sheet is 2500g / m 2 , bulk density is 0.7g / cm 3 .

[0047] The intumescent flame retardant powder is uniformly dispersed on the surface of the fluffy fiber mat by the powder-sprinkling process after the non-woven cross-lapping process and before the acupuncture process,...

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Abstract

The invention provides a flame-retardant light GMT composite board for interior and exterior ornaments of an automobile and a preparation method of the flame-retardant light GMT composite board. The flame-retardant light GMT composite board comprises a fiber felt and an upper surface layer or a lower surface layer or upper and lower surface layers; the fiber felt comprises reinforcing fibers, thermoplastic synthetic fibers and flame-retardant powder, and is formed by the following steps: flame-retardant powder is uniformly dispersed on the surface of a fluffy fiber felt net through a powder spreading process after a traditional non-woven cross lapping process, and then surface flame-retardant powder is uniformly immersed into a fiber base felt through a mechanical vibration and ultrasonicvibration dispersion process, so that the fiber felt is prepared. The flame-retardant light GMT composite board has the characteristics of light weight, high strength, high flame retardancy and the like, and can be widely applied to various interior and exterior ornaments of automobiles.

Description

technical field [0001] The invention belongs to the technical field of thermoplastic composite materials for interior and exterior decoration of automobiles, and in particular relates to a flame-retardant lightweight GMT composite plate used for interior and exterior decorations of automobiles and a preparation method thereof. Background technique [0002] Lightweight GMT is a new type of composite material made of glass fiber mat and thermoplastic resin. Because of its light weight, environmental protection, sound absorption and heat insulation, high strength and toughness, excellent chemical resistance and environmental adaptability, And it has become the most actively developed variety in today's automotive interior and exterior materials, and has been widely used in various types of automotive interior and exterior accessories (automobile bottom shielding protection devices, load-bearing plates, roof linings, door decorations, luggage racks, roof moldings, etc.) parts, e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B5/02B32B33/00B29C70/34B29C70/22B60R13/02
CPCB29C70/224B29C70/34B29L2007/002B32B5/02B32B33/00B32B2307/3065B32B2605/003B32B2605/08B60R13/02
Inventor 方晶马国维赵程波吕超目花东龙曹安东周立梅金波
Owner 浙江华江科技股份有限公司
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