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Moulding equipment and method for reinforced thermoplastic cellular composite sheet material by continuous glass fiber pre-dip polypropylene sheet material

A technology of reinforced thermoplastic and continuous glass fiber, which is applied in chemical instruments and methods, lamination auxiliary operations, lamination, etc., can solve the problems of high manufacturing cost, low production efficiency, and low degree of automation of the production line, so as to improve mechanical properties, The effect of low manufacturing cost and high production efficiency

Inactive Publication Date: 2014-12-24
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a continuous glass fiber prepreg sheet reinforced thermoplastic honeycomb composite sheet molding equipment and method with excellent anisotropic mechanical properties, which effectively solves the problem of the anisotropy of the existing technology. Technical defects such as low mechanical properties, inconsistent product shrinkage, low production line automation, high equipment manufacturing costs, and low production efficiency

Method used

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  • Moulding equipment and method for reinforced thermoplastic cellular composite sheet material by continuous glass fiber pre-dip polypropylene sheet material
  • Moulding equipment and method for reinforced thermoplastic cellular composite sheet material by continuous glass fiber pre-dip polypropylene sheet material
  • Moulding equipment and method for reinforced thermoplastic cellular composite sheet material by continuous glass fiber pre-dip polypropylene sheet material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The upper surface layer and the lower surface layer of the continuous glass fiber prepreg sheet reinforced thermoplastic honeycomb composite sheet are composed of a continuous glass fiber unidirectional preimpregnated polypropylene sheet, the thickness of the sheet is 0.3mm, and the core layer is polypropylene honeycomb sheet. The thickness of the honeycomb panel is 12mm.

[0028] The molding equipment for continuous glass fiber prepreg sheets reinforced thermoplastic honeycomb composite panels includes, in turn, the conveying track for conveying the core layer (1), the infrared radiation preheating device (2) for preheating the core layer, conveying the surface layer, Unwinding system for preheating and tensioning (3), heating and compounding unit for heating, pressurizing and compounding the preheated surface layer and core layer (4), cooling unit for cooling and shaping the compounded sheet (5), A cooling bracket (6) for further cooling the formed composite sheet, a ...

Embodiment 2

[0039] The upper surface and the lower surface of the continuous glass fiber prepreg sheet reinforced thermoplastic honeycomb composite sheet are composed of two continuous glass fiber unidirectional preimpregnated polypropylene sheets, the thickness of the single sheet is 0.3mm, and the They are staggered at 0° / 90°, the core layer is polypropylene honeycomb panel, and the thickness of the honeycomb panel is 12mm.

[0040] The molding equipment of the continuous glass fiber prepreg sheet reinforced thermoplastic honeycomb composite board is the same as that in Example 1.

[0041] The production method of this composite plate is as follows:

[0042] (1) The core polypropylene honeycomb panel placed on the conveying track (1) is guided into the infrared radiation preheating device (1) for preheating. The preheating temperature is 200°C and the preheating time is 1min;

[0043] (2) The upper and lower surfaces placed on the upper and lower unwinding system (3) are pre-impregnate...

Embodiment 3

[0051] The upper surface and the lower surface of the continuous glass fiber prepreg sheet reinforced thermoplastic honeycomb composite sheet are composed of three continuous glass fiber unidirectional preimpregnated polypropylene sheets. The thickness of each sheet is 0.3mm. 0° / 90° / 0° staggered arrangement, the core layer is polypropylene honeycomb panel, the thickness of the honeycomb panel is 12mm.

[0052] The molding equipment for continuous glass fiber prepreg sheets reinforced thermoplastic honeycomb composite panels includes, in turn, the conveying track for conveying the core layer (1), the infrared radiation preheating device (2) for preheating the core layer, conveying the surface layer, Unwinding system for preheating and tensioning (3), heating and compounding unit for heating, pressurizing and compounding the preheated surface layer and core layer (4), cooling unit for cooling and shaping the compounded sheet (5), A cooling bracket (6) for further cooling the for...

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Abstract

The invention relates to a moulding equipment and a method for a reinforced thermoplastic cellular composite sheet material by continuous glass fiber pre-dip polypropylene sheet material. The composite sheet material comprises a polypropylene honeycomb panel core layer and a continuous glass fiber pre-dip polypropylene sheet material surface layer, The moulding equipment of the composite sheet material comprises a conveying track for conveying the core layer, an infrared radiation preheating device for preheating the core layer, an unreeling system used for conveying, preheating and tensioning the surface, a heating composite unit for heating and pressurizing the preheated surface layer and the core layer, a cooling unit used for cooling and fixing the composited sheet material, a cooling carriage for cooling the moulded composite sheet material, a tractor for conveying power, a transverse sawing machine and an elevating packing bench. The core layer polypropylene honeycomb panel is guided into the infrared radiation preheating device for being preheated, the upper surface layer and the lower surface layer are preheated by the continuous glass fiber pre-dip polypropylene sheet material through rollers with a S-shaped arrangement, then synchronously enters into the heating composite unit for respectively realizing the transverse and longitudinal fusion composite, and pass through the cooling unit and the cooling carriage for cooling and fixing. The method has the advantages of low manufacture cost of the production equipment, high manufacture efficiency, high automation degree and low maintenance cost.

Description

technical field [0001] The invention relates to a molding device and method for a composite board, in particular to a molding device and method for a continuous glass fiber prepreg sheet reinforced thermoplastic honeycomb composite board. Background technique [0002] Continuous glass fiber prepreg sheet reinforced thermoplastic honeycomb composite sheet has excellent tensile strength, bending strength / modulus, high and low temperature impact strength, etc., and has the characteristics of relatively low density and recyclability. It has been greatly developed, led by automobiles, many places where metal materials were used in the past, such as ships and building components, have been replaced by continuous glass fiber prepreg sheets reinforced thermoplastic honeycomb composite panels. [0003] In the prior art, plastic honeycomb composite panels produced by compounding multi-layer materials have poor compatibility due to the difference between the upper and lower surface pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/06B32B37/10B32B38/00
Inventor 贾明印陈同海薛平
Owner BEIJING UNIV OF CHEM TECH
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