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Thermo plastic extrusion alloy plate material containing waste bast fibre

A technology of alloy sheet and hemp fiber is applied in the field of automobile interior parts as the base material, which can solve the problems of harmful environmental protection and the inability to recycle the frame material, and achieve the effect of saving cost and reducing environmental pollution.

Inactive Publication Date: 2010-05-12
扬州市邗江扬子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

Due to the limitation of manufacturing process conditions, the waste corners and frame materials pressed by the interior molding factory cannot be recycled. Traditional methods can only be landfilled and incinerated, which is harmful to environmental protection.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Thermoplastic extruded waste hemp fiber alloy sheet, which is made of an intermediate substrate, a surface layer of hot-melt copolymerized PP film, and a bottom layer of PET non-woven fabric. The intermediate substrate is composed of: 75% waste hemp fiber board, 10% EVA, 5 % EPDM, 10% PP, each component is blended and extruded by an extruder to form an intermediate substrate, and then compounded to make an alloy plate; the specific production steps are as follows:

[0013] The first step: waste hemp fiberboard treatment

[0014] Sorting, cleaning, crushing and loosening waste hemp fiberboards for use. When sorting, remove the hot-melt copolymerized PP film and PET non-woven fabric layer on the upper and lower surfaces, clean and remove the surface dust, and then crush and open to make the waste hemp fiberboard into powder;

[0015] The second step: mixing and granulation

[0016] Take 75kg of the waste hemp fiberboard powder processed through the above steps, 10kg of ...

Embodiment 2

[0022] Thermoplastic extruded waste hemp fiber alloy sheet, including an intermediate substrate, the upper surface of the intermediate substrate is provided with a hot-melt copolymerized PP film, the bottom layer of the intermediate substrate is provided with a PET non-woven fabric layer, and the weight content of the intermediate substrate is respectively: 70% Waste hemp fiberboard, 10% EVA, 10% EPDM, 10% PP.

[0023] Its production steps are as follows:

[0024] The first step: waste hemp fiberboard treatment

[0025] Sorting, cleaning, crushing and loosening the waste hemp fiberboard for use;

[0026] The second step: mixing and granulation

[0027] Take 70kg of processed waste hemp fiberboard powder, 10kg of EVA, 10kg of EPDM, and 10kg of PP, and mix them at high speed to form pellets;

[0028] Step 3: Extrusion

[0029] The granulated material is extruded into an intermediate substrate through a 92 / 188 conical counter-meshing twin-screw extruder. The die outlet of the...

Embodiment 3

[0033] Thermoplastic extruded waste hemp fiber alloy sheet, including an intermediate substrate, the upper surface of the intermediate substrate is provided with a hot-melt copolymerized PP film, the bottom layer of the intermediate substrate is provided with a PET non-woven fabric layer, and the weight content of the intermediate substrate is respectively: 60% Waste hemp fiberboard, 15% EVA, 5% EPDM, 20% PP.

[0034] Its production steps are as follows:

[0035] The first step: waste hemp fiberboard treatment

[0036] Sorting, cleaning, crushing and loosening waste hemp fiberboards for use.

[0037] The second step: mixing and granulation

[0038] Get 60kg of processed waste hemp fiberboard powder, 15kg of EVA, 5kg of EPDM, and 20kg of PP, and mix them at high speed to form pellets to be extruded.

[0039] Step 3: Extrusion

[0040] The granulated material is extruded into an intermediate substrate through a 92 / 188 conical counter-meshing twin-screw extruder; the die outl...

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PUM

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Abstract

A thermoplastic bast-fiber alloy plate made up by extruding out is composed of a basic plate, a thermofusible copolymer PP film on the top surface of basic plate and a non-woven PET cloth on the bottom surface of basic plate. Said basic plate is prepared from the leftover of bast fiber board, EVA, EPDM and PP proportionally through choosing the leftover of bast fiber board, washing, breaking, opening, mixing with others, granulating and extruding out.

Description

technical field [0001] The invention relates to a board, which is mainly suitable for automobile interior parts as a base material. Background technique [0002] With the rapid development of the automobile industry, the automobile interior parts industry has grown rapidly at the same time. The base material for automobile interior decoration usually adopts waste hemp fiber composite board. This waste hemp fiber board is composed of an intermediate substrate, a hot-melt copolymerized PP film arranged on the upper surface of the intermediate substrate, and a PET non-woven fabric layer arranged on the bottom layer of the intermediate substrate. The intermediate substrate is made of waste hemp fiber, PET yarn, and polypropylene yarn by weaving method, and is pressed and formed by a press; then the intermediate substrate in a hot state is compounded with the surface layer of hot-melt copolymerized PP film and the bottom layer of PET non-woven fabric to obtain the finished produc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B5/00B32B27/06B32B27/04B32B37/06B29C47/14B29C47/92B29C48/305B29C48/92
Inventor 丁韧
Owner 扬州市邗江扬子汽车内饰件有限公司