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Thermoplastic continuous fiber composite material and preparation method thereof and production device

A continuous fiber and composite material technology, which is applied in the field of thermoplastic continuous fiber composite materials and its preparation, can solve the problems of hindering the adhesion of the thermoplastic film layer and the fiber fabric, the thermoplastic film porosity is small, and the extrusion device is easily damaged, and achieves excellent performance. Liquid permeability, improved interlayer adhesion, and simple device composition

Inactive Publication Date: 2016-11-16
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the use of thermoplastic polymers to prepare fiber fabric composite materials is a new direction of development in this field. The commonly used raw materials for fiber fabric composite materials include PP, PE, PA6, PA66, TPU, etc. One molding technology is the use of extrusion molding technology. Due to the generally high viscosity of thermoplastic polymers after melting, when using an extruder to prepare fiber fabric composite materials, the fiber fabric and thermoplastic polymer particles are mixed and melted, which is not conducive to mold filling and is easy to damage the extrusion device; the other is to use Thin film technology is used to prepare fiber fabric composite materials, but there is also a problem that the thermoplastic film layer has a small porosity, which hinders the bonding between the thermoplastic film layer and the fiber fabric.

Method used

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  • Thermoplastic continuous fiber composite material and preparation method thereof and production device
  • Thermoplastic continuous fiber composite material and preparation method thereof and production device
  • Thermoplastic continuous fiber composite material and preparation method thereof and production device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This embodiment provides a method for preparing a thermoplastic continuous fiber composite material, which specifically includes the following steps:

[0036] (1) Under the condition of 200°C, the polypropylene particles are heated and melted by a screw extruder to form a melt, and the melt is extruded from the extruder and output to the melt injection die, and then to the Hot air is introduced into the cavity of the melt injection die, so that the melt is ejected from the cavity of the melt injection die under negative pressure to form melt blown fibers, and a part of the obtained Melt-blown fibers are processed by hot rolling to obtain thermoplastic non-woven fabrics made of polypropylene; a part of the melt-blown fibers prepared is made into a 3-dimensional woven fiber fabric; the other part is used as Z-direction reinforcing fibers;

[0037] (2) The fiber fabric is laid between two adjacent layers of the polypropylene thermoplastic non-woven fabric, and the prefabri...

Embodiment 2

[0041] This example provides a method for preparing a thermoplastic continuous fiber composite material, the steps of which are roughly the same as those in Example 1, except that:

[0042] The step (1) also includes spraying nanomaterials on one side of the thermoplastic nonwoven fabric made of polyethylene with a spraying machine at a temperature of 150°C to form a nanomaterial layer, and the nanomaterials can be alumina , zinc oxide, copper oxide, nano-carbon black, carbon nanofibers, carbon nanofibers, nano-graphene, nano-clay tubes, etc.

[0043] The polyethylene continuous fiber composite material prepared by the preparation method of the thermoplastic continuous fiber composite material provided in this embodiment has an eight-layer structure, and the specific structure is as follows image 3 As shown, it includes three layers of thermoplastic non-woven fabric layer 1 made of polyethylene material, and the surface of one side of the thermoplastic non-woven fabric layer ...

Embodiment 3

[0046] This example provides a method for preparing a thermoplastic continuous fiber composite material, the steps of which are roughly the same as those in Example 1, except that:

[0047] The raw material that present embodiment adopts is the combination of TPU and PA6;

[0048] The step (2) also includes the sub-step of using a spraying machine to spray nanomaterials on the surface of the preform at a temperature of 150°C, and the nanomaterials can be aluminum oxide, zinc oxide, copper oxide, etc.

[0049] The thermoplastic continuous fiber composite material prepared by the preparation method of the thermoplastic continuous fiber composite material provided in this example has a seven-layer structure, and the specific structure is as follows Figure 5 As shown, it includes three layers of thermoplastic non-woven fabric layers 1 made of polyethylene, and a layer of carbon fiber fabric 2 is laid between two adjacent layers of thermoplastic non-woven fabric layers 1 made of p...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention provides a preparation method of thermoplastic continuous fiber composite material. Paving parts; pre-pressing the paving parts to obtain preforms; subjecting the preforms to hot pressing and melting molding to obtain thermoplastic continuous fiber composite materials. The preparation method has simple process and is suitable for automatic production. The present invention also provides a thermoplastic continuous fiber composite material prepared by the method and a device for producing the composite material. The layers of the thermoplastic continuous fiber composite material are tightly bonded, and the provided device is simple in composition and easy to adjust. process steps.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a thermoplastic continuous fiber composite material, a preparation method and a production device thereof. Background technique [0002] Thermoplastic polymer materials are widely used in daily necessities, clothing and accessories, automobile decoration and other industries because of their corrosion resistance, small specific gravity, and easy processing. After more than 30 years of rapid development, thermoplastic polymers and their composite materials manufacturing industry Significant progress has been made. In 2013, global plastic consumption reached 299 million tons, and China's plastic consumption was close to 75 million tons, accounting for about 3.3% of GDP and nearly half of the seven strategic emerging industries. At present, the use of thermoplastic polymers to prepare fiber fabric composite materials is a new direction of development in this field. The commonly us...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B27/12B32B27/32B32B17/02B32B17/12B32B9/02B32B9/04
CPCB32B5/02B32B5/022B32B5/26B32B2262/0253B32B2262/101B32B2262/106
Inventor 张娜刘春太申长雨吕广超董梦瑶
Owner ZHENGZHOU UNIV
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