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Thermoplastic resin-based carbon fiber composite and preparation method thereof

A technology of thermoplastic resin and composite materials, applied in chemical instruments and methods, lamination, layered products, etc., can solve the problems of uneven distribution of carbon fiber and thermoplastic resin, fracture toughness, low damage tolerance, poor environmental adaptability, etc. Achieve the effects of easy realization, low production cost and short production cycle

Active Publication Date: 2010-09-29
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, thermoplastic resin-based carbon fiber composites make up for the inherent shortcomings of thermosetting resin-based carbon fiber composites to a large extent: for example, fracture toughness, low damage tolerance, poor environmental adaptability, long processing cycle, difficult to recycle, etc., for resin The development of carbon fiber-based composite materials has opened up a broad space
Using this method improves the impact strength, toughness and elongation of the product, but there are still the disadvantages of uneven distribution of carbon fiber and thermoplastic resin, and incomplete impregnation of carbon fiber with thermoplastic resin

Method used

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  • Thermoplastic resin-based carbon fiber composite and preparation method thereof
  • Thermoplastic resin-based carbon fiber composite and preparation method thereof
  • Thermoplastic resin-based carbon fiber composite and preparation method thereof

Examples

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preparation example Construction

[0025] Figure 1 to Figure 3c Shown is the schematic diagram of the preparation method of Example 1.

[0026] Wherein the reference numerals are: layered carbon fiber fabric 1, upper layer polypropylene resin film 21, lower layer polypropylene resin film 22, infrared lamp 3, first heating roller 41, second heating roller 42, third heating roller 43, the first One set of pressure rolls 51, second set of pressure rolls 52, first cooling roll 61, second cooling roll 62, third cooling roll 63, first guide roll 71, first guide roll 72, winding roll 8, single layer The polypropylene-based carbon fiber composite sheet 9, the upper heating plate 10, the lower heating plate 11, and the laminated polypropylene-based carbon fiber composite sheet 12.

[0027] A thermoplastic resin-based carbon fiber composite material of the present invention is composed of carbon fiber and thermoplastic resin. In terms of volume percentage, the content of carbon fiber is 50% to 70%, and the content of t...

Embodiment 1

[0030] Example 1: Raw materials: carbon fiber twill fabric and polypropylene resin film

[0031] The width of the carbon fiber twill fabric is 500 mm, the carbon fiber content specification of the monofilament bundle is 3 carbon fibers in the monofilament bundle, the thickness is 0.24 mm, and the mass per unit area is 209 g / m 2 ;The density of polypropylene resin film is 0.92 g / cm 3 , the thickness is 0.2 mm, and the width is 500 mm.

[0032] Preparation process: as figure 1 As shown, the steps for preparing a single-layer polypropylene-based carbon fiber composite material in this embodiment are as follows: a roll of carbon fiber twill fabric 1 is placed on the shelf, and a roll of upper polypropylene resin film is respectively placed at a position perpendicular to the carbon fiber. 21 and a roll of lower polypropylene resin film 22, carbon fiber twill fabric 1, upper polypropylene resin film 21 and lower polypropylene resin film 22 are transported by first guide roller 71 ...

Embodiment 2

[0035] Embodiment 2: Raw material: carbon fiber twill fabric and polycarbonate resin film; The width of carbon fiber twill fabric is 500 millimeters, and the monofilament bundle carbon fiber content specification is that 6 carbon fibers are contained in the monofilament bundle, and the thickness is 0.38 millimeter, and the mass per unit area is 406 g / m 2 ;The density of polycarbonate resin film is 1.19 g / cm 3 , the thickness is 0.4 mm, and the width is 500 mm.

[0036] Preparation process: The steps for preparing a single-layer polycarbonate-based carbon fiber composite material in this example are similar to the steps for preparing a single-layer polypropylene-based carbon fiber composite material in Example 1 above, except that the infrared lamp 3 and the first heating The heating temperatures of the roller 41, the second heating roller 42, and the third heating roller 43 were all 260°C.

[0037] The steps for preparing the laminated polycarbonate-based carbon fiber compos...

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Abstract

The invention discloses a thermoplastic resin-based carbon fiber composite and a preparation method thereof. The thermoplastic resin-based carbon fiber composite comprises the following components in percentage by volume: 50 to 70 percent of carbon fibers and 30 to 50 percent of thermoplastic resin. In the preparation method, according to rheological properties of the thermoplastic resin, the thermoplastic resin-based carbon fiber composite with good interface binding property is prepared by utilizing hot-roller hot-pressing continuous equipment and adjusting process conditions such as machining temperature, machining pressure, machining time and the like. Compared with the prior art, the thermoplastic resin-based carbon fiber composite has the advantages of simple structure, good interface binding property, high impact resistance and recycling property; and the preparation method can realize the uniform distribution of the carbon fibers and the thermoplastic resin and ensure the carbon fibers are immersed by the thermoplastic resin completely, so that the defect of the conventional method is overcome.

Description

technical field [0001] The invention relates to the application field of thermoplastic resin-based composite materials, in particular to a thermoplastic resin-based carbon fiber composite material and a preparation method thereof. Background technique [0002] With the development of carbon fiber composite materials, thermoplastic resin-based carbon fiber composite materials with general-purpose engineering plastics and high-performance engineering plastics as matrix resins have attracted more and more attention, and have become an extremely active research hotspot in the field of composite materials. Compared with thermosetting resin-based carbon fiber composites, thermoplastic resin-based carbon fiber composites have many advantages: for example, high fracture toughness and high elongation at break; no chemical reaction in the molding process, so the molding speed is fast and the molding cycle is short; prepreg The material can be stored indefinitely, and there is no speci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/00C08L23/12C08L77/00C08L27/06C08L25/06C08L69/00C08L71/12C08L81/06C08K7/06B29C70/50B32B37/06B32B37/10B32B5/26
Inventor 朱春燕范欣愉卢桂阳胡东梅丁江平罗勇波
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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