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Glass fiber reinforced PEEK/PES composite material

A composite material and glass fiber technology, which is applied in the field of glass fiber reinforced PEEK/PES composite material and its preparation, to achieve the effects of reducing costs, increasing bending resistance and heat resistance, and increasing the thermal deformation temperature under load

Inactive Publication Date: 2018-06-15
HEILONGJIANG XINDA ENTERPRISE GRP
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  • Description
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Problems solved by technology

[0004] At the same time, when PEEK without any antioxidant is in the molten state, its own molecular chain will degrade and cross-link with the extension of the holding time, which will increase the viscosity of the polymer and reduce some properties, which seriously affects the processing of PEEK. Performance and Product Stability

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  • Glass fiber reinforced PEEK/PES composite material

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Embodiment 1

[0024] The PEEK composite material of the present invention is composed of polyethersulfone (PES), polyetheretherketone (PEEK), glass fiber (GF), coupling agent and antioxidant, wherein the mass ratio of each component added is: polyethersulfone (PES) is 30 parts, polyether ether ketone (PEEK) is 55 parts, glass fiber (GF) is 15 parts, coupling agent is 1 part, and antioxidant is 0.3 parts.

[0025] The preparation method of this PEEK composite material comprises the following steps successively:

[0026] Primary drying: PEEK particles and PES powder are dried in a drying oven, the temperature is set at 150°C, and the drying time is 2 hours;

[0027] High-speed mixing: Use a high-speed mixer to mix the high-temperature-resistant chopped glass fiber, coupling agent, antioxidant, PES and PEEK particles according to the formula to make them evenly mixed;

[0028] Extrusion granulation: Use a twin-screw compounding extruder to extrude and granulate the mixed materials. The parame...

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Abstract

The invention provides a glass fiber reinforced PEEK / PES composite material and a preparation method thereof, wherein the PEEK composite material comprises glass fiber (GF), polyether sulfone (PES), polyether ether ketone (PEEK), a coupling agent and an antioxidant. The preparation method comprises: first drying, high-speed mixing, extrusion granulation, and second drying and injection molding. According to the present invention, by adding the polyether sulfone (PES) resin and the glass fiber (GF) to the medium-viscosity polyether ether ketone (PEEK) resin, the bending resistance of the composite material is remarkably improved; by adding the coupling agent and the antioxidant, the interfacial bonding between the glass fiber and the resin is increased, and PEEK can be prevented from self-molecular chain degradation cross-linking in the molten state; and the bending performance and the temperature resistance of polyether ether ketone are improved while the cost of the PEEK composite material is reduced.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a glass fiber reinforced PEEK / PES composite material and a preparation method thereof. Background technique [0002] PEEK has excellent comprehensive properties, so once it is successfully developed, it immediately shows great application potential in many engineering fields, but it is expensive, and its glass transition temperature is significantly lower than that of high-temperature resistant amorphous plastics, such as polyetherimide (PEI), polyethersulfone (PES), and at the same time, due to the increasingly difficult development of new varieties of high-performance polymers, alloying modification of PEEK to improve its performance and reduce costs has become one of the focuses of research. [0003] Glass fiber reinforced PEEK / PES composite material can make up for or improve the lack of PEEK performance, improve the heat resistance and bending resistanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/16C08L81/06C08K7/14B29B9/06B29C47/92B29C48/92
CPCB29B9/06B29C48/92B29C2948/9259B29C2948/92704C08L61/16C08L2201/08C08L81/06C08K7/14
Inventor 赵岩磊李健成谢众
Owner HEILONGJIANG XINDA ENTERPRISE GRP
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