Carbon fiber continuous fiber reinforcing polyether-ether-ketone matrix composite material and preparing method thereof

A polyetheretherketone multifilament and polyetheretherketone technology, which is used in the field of carbon fiber long fiber reinforced polyetheretherketone-based composite materials and its preparation, can solve the problem of difficult to precisely control fiber content, difficult fiber dispersion and impregnation effect, and inconvenience. It is suitable for problems such as high viscosity resins to achieve the effects of improving mechanical properties and thermal stability, improving mechanical properties and continuity, and reducing pore defects

Active Publication Date: 2017-10-13
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the commonly used G-LFT and E-LFT have problems such as unsatisfactory structural design, unsuitability for high-viscosity resins, and difficulty in accurately controlling the content of fibers. It is difficult to achieve g

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The special material for spinning grade polyetheretherketone resin (produced by Changchun Jida Special Plastic Engineering Research Co., Ltd.) with a melt index of 15g / 10min was selected to prepare a polyetheretherketone multifilament with a fineness of 366D / 12F ( Spinning process conditions: the temperature range of each heating zone of the spinning extruder, the first zone is 330°C, the second zone is 370°C, the third zone is 400°C, the fourth zone is 410°C, the fifth zone is 410°C, the sixth zone is 415°C, the seventh zone 415°C, eight zones 410°C, spinning speed 150m / min, fiber draw ratio 1.7:1, post-drawing temperature 210°C), polyether ether ketone multifilament and carbon fiber (T300-12k, Japan Toray company production) chopped to 50mm to obtain polyether ether ketone PEEK long fibers and carbon fiber CF long fibers; then polyetheretherketone PEEK long fibers and carbon fiber CF long fibers were opened with a needle opener (provided by Tianjin University of Techno...

Embodiment 2

[0021] The polyether ether ketone multifilament (polyether ether ketone) with a fineness of 272D / 12F ( Spinning process conditions: the temperature range of each heating zone of the spinning extruder, the first zone is 330°C, the second zone is 370°C, the third zone is 375°C, the fourth zone is 390°C, the fifth zone is 390°C, the sixth zone is 393°C, the seventh zone 395°C, eight zone 395°C, spinning speed 170m / min, fiber draw ratio 2.1:1, post-drawing temperature 155°C), polyetheretherketone multifilament and carbon fiber (T300-12k, Japan Toray company production) chopped to 50mm to obtain polyether ether ketone PEEK long fibers and carbon fiber CF long fibers; then polyetheretherketone PEEK long fibers and carbon fiber CF long fibers were opened with a needle opener (provided by Tianjin University of Technology) , so that bundles of PEEK and CF fibers are expanded into monofilaments, which are transported to the cotton feeding machine (provided by Tianjin University of Techn...

Embodiment 3

[0023] The special material for spinning grade polyetheretherketone resin (produced by Changchun Jida Special Plastic Engineering Research Co., Ltd.) with a melt index of 45g / 10min was selected to prepare polyetheretherketone fibers with a fineness of 272D / 12F (spun by spinning) by melt spinning. Silk process conditions: the temperature range of each heating zone of the spinning extruder, the first zone is 330°C, the second zone is 370°C, the third zone is 375°C, the fourth zone is 390°C, the fifth zone is 390°C, the sixth zone is 393°C, and the seventh zone is 395°C ℃, eight zone 395 ℃, spinning speed 170m / min, fiber draw ratio 2.1:1, post-drawing temperature 155 ℃), polyether ether ketone fiber and carbon fiber (T300-12k, Japan Toray company production) Chopped to 50mm to obtain polyether ether ketone PEEK long fibers and carbon fiber CF long fibers; then polyetheretherketone PEEK long fibers and carbon fiber CF long fibers are respectively opened with a needle opener (provid...

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Abstract

The invention discloses a carbon fiber continuous fiber reinforcing polyether-ether-ketone matrix composite material and a preparing method thereof, and belongs to the technical field of thermoplastic composite materials. The preparing method comprises the first step of adopting a spinning-grade polyether-ether-ketone special material to prepare polyether-ether-ketone multifilament with the linear density being 12-380D/12F through a melt spinning method; the second step of chopping the polyether-ether-ketone multifilament into 30-80 mm through a fiber cut-off machine to obtain polyether-ether-ketone continuous fiber, and chopping the carbon fiber into 20-70mm to obtain carbon fiber continuous fiber; the third step of conducting mixing, carding, lapping, needling on the polyether-ether-ketone PEEK continuous fiber and carbon fiber CF continuous fiber according to the mass ratio of 50%-70% to 50%-30% to prepare a CF/PEEK compound needled felt prefabricated part; the fourth step of conducting hot-pressing, exhausting, cooling and demolding on the obtained CF/PEEK compound needled felt prefabricated part on a vacuum hot-pressing machine to obtain the carbon fiber continuous fiber reinforcing polyether-ether-ketone matrix composite material. No solvent is involved in the process, the carbon fiber continuous fiber reinforcing polyether-ether-ketone matrix composite material does not pollute the environment, the technology is short in process, the prepared composite material is higher in intensity, the material aspect ratio of strength is lowered.

Description

technical field [0001] The invention belongs to the technical field of thermoplastic composite materials, and in particular relates to a carbon fiber long fiber reinforced polyetheretherketone-based composite material and a preparation method thereof. Background technique [0002] As a new type of composite material that can be designed and recycled repeatedly, long fiber reinforced thermoplastic resin matrix composites (LFT) make up for the shortcomings of poor performance of short fiber reinforcement and high cost of continuous fiber reinforcement. Due to its broad application prospects in recent years It has been widely concerned by domestic and foreign scientific research institutes and industrial circles. The fiber length of traditional short fiber reinforced resin matrix composites (SFT) is generally less than 3 mm, and the fibers are randomly distributed in the resin, which cannot fully exert the reinforcing effect on the resin. In contrast, long fiber reinforced ther...

Claims

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Application Information

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IPC IPC(8): D04H3/002D04H3/009D04H3/105D04H3/153D01D5/08
CPCD01D5/08D04H3/002D04H3/009D04H3/105D04H3/153
Inventor 张梅赵文砚赵贺栾加双盖须召许治平
Owner JILIN UNIV
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