Regenerated carbon fiber reinforced PA6 material and preparation method thereof

A fiber-reinforced and recycled carbon technology, which is applied in the direction of plastic recycling and recycling technology, can solve the problems of unstable and stable feeding, limited RCF, and low stacking area density.

Active Publication Date: 2020-02-18
南通复源新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, recycled carbon fiber (RCF) is relatively fluffy, has a small bulk surface density, and is entangled with each other. When using an extruder and

Method used

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  • Regenerated carbon fiber reinforced PA6 material and preparation method thereof
  • Regenerated carbon fiber reinforced PA6 material and preparation method thereof
  • Regenerated carbon fiber reinforced PA6 material and preparation method thereof

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preparation example Construction

[0016] On the one hand, the present disclosure relates to a preparation method of recycled carbon fiber reinforced PA6 material, which comprises:

[0017] The first mixture, the first mixture is made of sizing agent, recycled carbon fiber, BOPA film;

[0018] A second mixture, the second mixture is made of PA6 resin, antioxidant; and

[0019] The first mixture and the second mixture are extrusion pelletized.

[0020] In some embodiments, the first mixture is prepared from 0.1 to 1.5 parts of sizing agent, 10.0 to 30.0 parts of recycled carbon fiber, and 1.2 to 5.0 parts of BOPA film in parts by weight.

[0021] In some embodiments, the second mixture is prepared from 62.9 to 88.5 parts of PA6 resin and 0.2 to 0.6 parts of antioxidant in parts by weight.

[0022] In certain embodiments, the sizing agent is selected from waterborne epoxy resins, polyurethane resins, polyimides, vinyl ester resins, or mixtures thereof.

[0023] In certain embodiments, the sizing agent is selec...

Embodiment 1

[0073] Put 0.3% by weight (0.03 times the weight of FUY-CP) of L-508W in the container, add 9.7% by weight of deionized water, and stir evenly; put 10.0% by weight of FUY-CP into the container to fully saturate the absorption solution , and then dry in an oven at 100 ° C for 3-4 hours to dry the water. Use 2.5% by weight (0.25 times the weight of FUY-CP) of LHA with a width of 18 cm to wrap the sized regenerated carbon fiber layered into a "hamburger" shape, press it into a plate shape at 245 ° C with a flat vulcanizer, and then crush it The machine crushes it into crushed material with a particle size of 8-20mm. Put 86.8% by weight of B3S, 0.2% by weight of 1076, and 0.2% by weight of 168 in the mixing pot at a controlled speed of 850 rpm and stirring time for 4 minutes. After mixing the materials, feed them into the extruder from the main feed, and feed the crushed materials from the side Add to extruder, extrude and granulate. The temperature of each section of the twin-s...

Embodiment 2

[0075] The amount of each raw material is shown in Table 1, the weight of deionized water is the weight of FUY-CP minus the weight of L-508W, and the recycled carbon fiber reinforced PA6 material is prepared according to the method of Example 1.

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Abstract

The invention discloses a regenerated carbon fiber reinforced PA6 material and a preparation method thereof, the regenerated carbon fiber reinforced PA6 material comprises a first mixture and a secondmixture, wherein the first mixture is prepared from sizing agent, regenerated carbon fiber and a BOPA film; the second mixture is prepared from PA6 resin and an antioxidant. By extruding and granulating the first mixture and the second mixture, the regenerated carbon fiber reinforced PA6 material is prepared. The preparation method provided by the invention solves the blanking problem of RCF during extrusion granulation; the RCF reinforced PA6 material prepared by the preparation method of the invention maintains more than 90% of the performance of a CFRP material, and the regenerated carbonfiber reinforced PA6 material maintaining more than 85% of the performance in the industry can be regarded as a qualified regenerated carbon fiber reinforced material; According to the method, it is possible to produce the CFRP composite material by extrusion granulation of uncut RCF and thermoplastic resin, the length of carbon fibers in the CFRP composite material is kept to the maximum extent,and the application of the RCF is widened.

Description

technical field [0001] The invention relates to the technical field of recycled composite materials, in particular to a recycled carbon fiber reinforced PA6 material in the field of recycled carbon fiber application and a preparation method thereof. Background technique [0002] In recent years, carbon fiber reinforced materials (CFRP) have been widely used in aerospace, wind turbine blades, sports and leisure, automobiles, pressure vessels and other fields due to their low density, high strength and modulus, corrosion resistance and good weather resistance. The components of carbon fiber reinforced materials will produce 30%-50% scraps in the production. At the same time, with the development of time, a large number of CFRP components will reach the end of their service life and be scrapped. There are more and more CFRP wastes, resulting in a lot of waste of resources. At the same time, these wastes are extremely difficult to decompose due to the extremely high corrosio...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L77/00C08K9/04C08K9/10C08K7/06C08J5/06
CPCC08J5/06C08J2377/02C08J2477/00C08K9/04C08K9/10C08K7/06Y02W30/62
Inventor 杨斌翁亚楠李鑫倪静娴
Owner 南通复源新材料科技有限公司
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