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Double-layer peek resin composite material module and preparation method thereof

A resin composite material, double-layer technology, applied in the direction of coating, etc., can solve the problems of the decline of the surface smoothness of the slide rail, easy to scratch, affecting the sliding efficiency, etc. Effect

Active Publication Date: 2018-06-26
NANJING COMPTECH COMPOSITES CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, glass fiber and carbon fiber reinforced PEEK resin exist on the surface of the fiber fracture head, which is easy to scratch the slide rail in contact with the guide block, resulting in a decrease in the smoothness of the slide rail surface and affecting the sliding efficiency.

Method used

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  • Double-layer peek resin composite material module and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The preparation method of this double-layer PEEK resin composite material module, its step comprises:

[0017] A. Dry and mix 18% chopped glass fiber, 4% carbon fiber, 4% graphite and 72% PEEK, add 2% silane coupling agent, heat injection molding with conventional technology, and make the inner core layer;

[0018] B. Use a high-pressure spray device to spray concentrated sulfuric acid solution on the surface of the module, the spray pressure is 300mmAq, control the size of the spray droplets and spray volume, so that the module forms a rough surface;

[0019] C. Spray ethanol solution on the surface of the module with a high-pressure spray device, and purge the surface of the module;

[0020] D. Combine 75% PEEK, 20% PTFE and 5% nano-Si 3 N 4 After the powder is mixed evenly, it is melted at 430°C, and the molten body is sprayed onto the surface of the module by a high-pressure spray device to form an outer coating. The thickness of the outer coating is controlled at...

Embodiment 2

[0023] The preparation method of this double-layer PEEK resin composite material module is consistent with embodiment 1, and the distribution ratio of each component in the inner core layer is: 22% chopped glass fiber, 8% carbon fiber, 6% graphite, 61% PEEK and 3% silane Joint agent; the distribution ratio of each component in the outer coating is: PEEK 82%, PTFE 15%, nano-Si 3 N 4 3%. The performance test of the prepared double-layer PEEK resin composite module was carried out, and the test results are shown in Table 1.

Embodiment 3

[0025] The preparation method of this double-layer PEEK resin composite material module is consistent with embodiment 1, and the distribution ratio of each component in the inner core layer is: 20% chopped glass fiber, 6% carbon fiber, 5% graphite, 66.5% PEEK and 2.5% silane Joint agent; the distribution ratio of each component in the outer coating is: PEEK 78%, PTFE 18%, nano-Si 3 N 4 4%. The performance test of the prepared double-layer PEEK resin composite module was carried out, and the test results are shown in Table 1.

[0026] The percentages mentioned above in the present invention are all percentages by mass.

[0027] Table 1 Performance test results of double-layer PEEK resin composite modules

[0028]

[0029] Remarks: Friction and wear test conditions: initial load 196N, speed 200r / min, dry friction 2h. Pair of grinding wheels: 45 steel, 42-45HRC.

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Abstract

The invention discloses a double-layer PEEK resin composite material module. The double-layer PEEK resin composite material module comprises an inner core layer and an outer coating on the surface of the inner core layer. The inner core layer comprises short glass fibers and carbon fiber combined reinforced PEEK resin. The outer coating comprises PEEK / PTFE resin. The short glass fibers and carbon fiber combined reinforced PEEK resin fill the PEEK resin according to a certain ratio so that PEEK resin hardness and wear resistance are improved. The surface of a module is subjected to concentrated sulfuric acid roughening treatment, then is blow-washed by ethanol and then is spray-coated with a thin PEEK / PTFE resin as an outer coating. The prepared module has excellent mechanical properties and cracked fiber heads on the surface of the module are coated with the PEEK / PTFE resin so that a surface frictional coefficient is low and surface scratches of a material contacting with the module are prevented. Through the surface subjected to roughening treatment, bonding strength of the outer coating and the inner core layer is high. After long-term use, the outer coating is easily separated from the inner core layer.

Description

technical field [0001] The invention relates to a double-layer PEEK resin composite material module and a preparation method thereof, belonging to the field of composite materials. Background technique [0002] Polyetheretherketone (PEEK) is a linear aromatic polymer compound containing chain segments in the main molecular chain, and is a high-temperature-resistant, high-performance thermoplastic special engineering plastic. PEEK has good mechanical properties, chemical resistance, wear resistance, hydrolysis resistance, etc.; light specific gravity, good self-lubricating performance, and very good processing performance. It can be applied to high-tech industries such as aviation, machinery, electronics, chemicals, and automobiles. industrial field. The high-performance composite material prepared with glass fiber combined with carbon fiber reinforced PEEK has excellent wear resistance, impact resistance and compression resistance are also better. Good mechanical strength ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/04C08L61/16C08K13/04C08K7/14C08K7/06C08K3/04C09D161/16C09D127/18C09D7/61
CPCC08J7/0427C08J2361/16C08J2461/16C08K3/04C08K7/06C08K7/14C08K13/04C08K2201/003C08K2201/004C08K2201/011C09D7/61C09D161/16C08L61/16C08L27/18C08K3/34
Inventor 杨文光陈佩民靳予孙克原支永潮杨勇
Owner NANJING COMPTECH COMPOSITES CORP