Polyether ketone ketone sizing agent and method thereof for sizing and preparing carbon fiber composite

A technology of polyether ketone ketone and carbon fiber, which is applied in the direction of carbon fiber, fiber treatment, fiber type, etc., can solve the problems of poor interface bonding performance, macroscopic mechanical properties of composite materials and poor interlayer bonding performance, etc., and achieve strong adhesion , excellent chemical resistance and low production cost

Inactive Publication Date: 2019-03-22
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

However, due to the inert surface of the carbon fiber, its interface bonding performance with the PEKK matrix is ​​poor, resulting in poor macroscopic mechanical properties and interlayer bonding performance of the composite material, which requires surface modification of the carbon fiber.

Method used

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  • Polyether ketone ketone sizing agent and method thereof for sizing and preparing carbon fiber composite
  • Polyether ketone ketone sizing agent and method thereof for sizing and preparing carbon fiber composite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The polyether ketone ketone sizing agent was prepared by weighing each raw material according to the following parts by weight: 0.1 part of low crystal polyether ketone ketone resin, 90 parts of sulfuric acid solution with a mass fraction of 98.3%, and 2 parts of graphene oxide with an average particle size of 5000 mesh. Mix and stir the above raw materials until the polyether ketone ketone dissolves completely in the sulfuric acid solution.

[0022] The CF-PEKK-GO composite material was prepared according to the following steps using the polyetherketoneketone sizing agent:

[0023] 1) Immerse the carbon fiber monofilament in the polyether ketone ketone sizing agent for 1 minute, then take it out and wash it with deionized water until the deionized water is neutral, that is, remove the sulfuric acid residue, dry it, and make the surface of the carbon fiber monofilament form PEKK-GO film;

[0024] 2) if figure 1 As shown, after the surface of the carbon fiber monofilam...

Embodiment 2

[0026] The polyether ketone ketone sizing agent was prepared by weighing each raw material according to the following parts by weight: 5 parts of polyether ketone ketone resin, 50 parts of 90% sulfuric acid solution by mass fraction, and 0.1 part of graphene oxide with an average particle size of 300 mesh. Mix and stir the above raw materials until the polyether ketone ketone dissolves completely in the sulfuric acid solution.

[0027] The CF-PEKK-GO composite material was prepared according to the following steps using the polyetherketoneketone sizing agent:

[0028] 1) Immerse the carbon fiber monofilament in the polyether ketone ketone sizing agent for 20 minutes, then take it out and wash it with deionized water until the deionized water is neutral, and dry it to form a PEKK-GO film on the surface of the carbon fiber monofilament;

[0029] 2) After the surface of the carbon fiber monofilament treated in step 1) is electrostatically adsorbed to absorb a layer of polyether k...

Embodiment 3

[0031] The polyether ketone ketone sizing agent was prepared by weighing each raw material according to the following parts by weight: 3 parts of low crystal polyether ketone ketone resin, 20 parts of 98% sulfuric acid solution by mass fraction, and 0.1 part of graphene oxide with an average particle size of 5000 mesh. Mix and stir the above raw materials until the polyether ketone ketone dissolves completely in the sulfuric acid solution.

[0032] The CF-PEKK-GO composite material was prepared according to the following steps using the polyetherketoneketone sizing agent:

[0033] 1) Immerse the carbon fiber monofilament in the polyether ketone ketone sizing agent for 10 minutes, then take it out and wash it with deionized water until the deionized water is neutral, and dry it to form a PEKK-GO film on the surface of the carbon fiber monofilament;

[0034] 2) After the surface of the carbon fiber monofilament treated in step 1) is electrostatically adsorbed to absorb a layer o...

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Abstract

The invention discloses a polyether ketone ketone sizing agent. The polyether ketone ketone sizing agent is prepared by mixing and stirring the following raw materials in parts by weight: 0.1-5 partsof polyether ketone ketone, 20-99.8 parts of sulfuric acid solution and 0.1-5 parts of graphene oxide; the sulfuric acid solution is 90-99% aqueous sulfuric acid solution; the polyether ketone ketoneis low-crystallizing polyether ketone ketone resin; the graphene oxide is graphene oxide powder with average grain size of 300-5000 meshes. The polyether ketone ketone sizing agent is capable of meeting the requirement for processing temperature of PEKK resin and is capable of effectively promoting adhesiveness of the interface between carbon fiber and PEKK substrate. Preparation technology is simple.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a polyether ketone ketone sizing agent and a method for preparing carbon fiber composite materials by sizing the same. Background technique [0002] Carbon fiber reinforced resin matrix composites (CFRP) have the characteristics of light weight, high strength, strong designability, and corrosion resistance, and have important applications in structural materials and functional materials. Compared with thermosetting resin-based composites (CFRTS), carbon fiber-reinforced thermoplastic resin-based composites (CFRTP) have better impact resistance, fatigue resistance, connection performance, less environmental pollution, short molding cycle, and long raw material storage. The advantages of easy recycling have attracted widespread attention in aerospace, national defense, automobile industry, high-speed trains, and new energy. The interface is the medium for stress transm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/53D06M11/74D06M101/40
CPCD06M11/74D06M15/53D06M2101/40D06M2200/40
Inventor 马芸芸颜春祝颖丹徐海兵刘东宦玉强
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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