Unlock instant, AI-driven research and patent intelligence for your innovation.

Polyetherimide-based graphene 3D (three-dimensional) printing composite material and preparation method thereof

A technology of polyetherimide base and polyetherimide resin, which is applied in the field of graphene composite material preparation, can solve problems such as insufficient impact resistance, and achieve improved mechanical strength, expanded applications, excellent economic benefits and social benefit effect

Inactive Publication Date: 2017-09-12
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has the highest heat resistance, chemical resistance and mechanical strength of any FDM thermoplastic, and is the best choice as a polymer matrix for high-performance 3D printing composites; however, its impact resistance is still not excellent enough and needs to be further improved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0016] The preparation method of the polyetherimide-based graphene 3D printing composite material as described above is characterized in that the steps of preparation are as follows:

[0017] 1. Preparation of polyetherimide-based graphene composite material masterbatch:

[0018] Add the weighed graphene, coupling agent and lubricant to the dried polyetherimide resin, stir and mix evenly, and then pass through a twin-screw extruder at a temperature of 350°C to 420°C. Melt blending and extrusion granulation to obtain composite material masterbatch;

[0019] 2. Preparation of polyetherimide-based graphene composite material wire:

[0020] After drying and dehumidifying the masterbatch of the composite material, the wire rod of the polyetherimide-based composite material is produced through a resin drawing machine. The feeding temperature of the wire drawing machine is 320° C. to 400° C., and the diameter of the wire rod is 1 mm to 4 mm.

[0021] The working principle of the pr...

Embodiment 1

[0023] Weigh the graphene powder of 0.3g, the coupling agent of 0.3g, the lubricant of 0.3g and the polyetherimide resin of 299.1g;

[0024] The above raw materials are repeatedly stirred and mixed evenly, and then passed through a twin-screw extruder, fully melted and blended at a temperature of 380°C, and then extruded to obtain a composite material masterbatch; the composite material masterbatch is dried and dehumidified, and then passed through a wire drawing machine The polyetherimide-based composite material wire is prepared under the condition that the adding temperature is 350°C.

Embodiment 2

[0026] Weigh the graphene powder of 3g, the coupling agent of 3g, the lubricant of 3g and the polyetherimide resin of 291g;

[0027] The above raw materials are repeatedly stirred and mixed evenly, and then passed through a twin-screw extruder, fully melted and blended at a temperature of 400°C, and then extruded to obtain a composite material masterbatch; the composite material masterbatch is dried and dehumidified, and then passed through a wire drawing machine The polyetherimide-based composite material wire is prepared under the condition that the adding temperature is 370°C.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

The invention belongs to a preparation technique of a graphene composite material, and relates to a polyetherimide-based graphene composite material and a preparation method thereof. The polyetherimide-based graphene 3D (three-dimensional) printing composite material is prepared from the following components in percentage by mass: 0.1% to 15% of graphene powder, 0.1% to 5% of coupling agent, 0.1% to 5% of lubricating agent, and the balance of polyetherimide resin. The preparation method comprises the following steps of preparing master batch of the polyetherimide-based graphene composite material; preparing a wire of the polyetherimide-based graphene composite material. The polyetherimide-based graphene composite material has the advantages that the upper limit of use temperature of the 3D printing composite material is increased, the range of use temperature is widened, the mechanical strength is improved, particularly, the anti-impact strength is improved, and the application of polyetherimide and graphene in 3D printing is widened.

Description

technical field [0001] The invention belongs to the preparation technology of graphene composite materials, and relates to a polyetherimide-based graphene composite material and a preparation method thereof. Background technique [0002] 3D printing technology, also known as additive manufacturing, can directly use 3D data to realize layer-by-layer processing and superimposed forming processes through 3D printers, so as to generate entities; it is different from traditional mold processing methods, this kind of mold-free free forming The advanced technology gets rid of the shackles of space geometry and design process, and can transform any creative design into a physical product, expanding a huge creative space. Moreover, compared with traditional resin processing methods, it shortens the research and development cycle and reduces research and development costs; it broadens the range of material selection and product application fields; molded parts can be directly manufact...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/08C08K3/04B33Y70/00
CPCC08L79/08B33Y70/00C08K3/04C08L23/30C08L23/12
Inventor 杨程邢悦任志东郝思嘉
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS