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Modified polyetherimide material, preparation method thereof and cable support

A polyetherimide, modified technology, applied in the field of cable support, modified polyetherimide material and its preparation, can solve the problems of deformation, failure, poor impact performance, etc.

Active Publication Date: 2022-07-29
兰州中科聚润新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pure PEI has poor anti-friction and wear resistance, poor impact performance, and short-term resistance to 180°C
When the PEI cable support is used as a fixed device in the engine, due to long-term high and low temperature conditions, deformation, severe wear and even failure occur, which restricts the development and application of this material product

Method used

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Examples

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Comparison scheme
Effect test

preparation example Construction

[0017] The invention provides a preparation method of a modified polyetherimide material, comprising the following steps:

[0018] The polyetherimide, glass fiber and two-dimensional borophene are co-extruded to obtain a modified polyetherimide material; the mass ratio of the polyetherimide pellets, glass fibers and two-dimensional borophene is: (60~80):(10~30):(1~5).

[0019] In the present invention, without special instructions, the raw materials used are all commercially available commodities well known in the art.

[0020] In the present invention, the particle size of the polyetherimide is preferably 2-5 mm; the diameter of the glass fiber is preferably 7-14 μm; the particle size of the two-dimensional borophene is preferably 15-25 μm.

[0021] In the present invention, the two-dimensional borophene is preferably prepared by itself, and the present invention has no special requirements for the preparation method of the two-dimensional borophene, and any preparation meth...

Embodiment 1

[0038] The PEI pellets, glass fiber (GF), and MBene powder were co-extruded using a screw extruder in a mass ratio of 69:30:1, wherein the screw speed was 60 rpm, the temperature was 330 °C, and the length-diameter ratio of the screw was 25:1, the extruded filaments are cooled, pelletized and dried to obtain modified PEI pellets with a particle size of 3 mm.

[0039] The above-mentioned modified PEI pellets are injection-molded, wherein the temperature of the barrel I, II, and III sections are 315 ° C, 330 ° C, and 340 ° C, respectively, the nozzle temperature is 340 ° C, the back pressure is 1 bar, and the injection pressure is 120 bar. The pressing time is 2s, the cooling time is 20s, and the cable support product is obtained.

Embodiment 2

[0041] The PEI pellets, GF, and MBene powders were co-extruded with a screw extruder at a mass ratio of 67:30:3, wherein the screw speed was 60 rpm, the temperature was 330°C, and the length-diameter ratio of the screw was 25:1. The extruded filaments are cooled, pelletized and dried to obtain modified PEI pellets with a particle size of 3 mm.

[0042] The above-mentioned modified PEI pellets are injection-molded, wherein the temperature of the barrel I, II, and III sections are 315 ° C, 330 ° C, and 340 ° C, respectively, the nozzle temperature is 340 ° C, the back pressure is 1 bar, and the injection pressure is 120 bar. The pressing time is 2s, the cooling time is 20s, and the cable support product is obtained.

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PUM

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Abstract

The invention provides a modified polyetherimide material, a preparation method thereof and a cable support, and belongs to the technical field of insulating materials. The preparation method of the modified polyetherimide material provided by the invention comprises the following steps: coextruding polyetherimide, glass fibers and two-dimensional boron alkene to obtain the modified polyetherimide material, the mass ratio of the polyetherimide to the glass fibers to the two-dimensional boron alkene is (60-80): (10-30): (1-5). The MBene and the glass fiber are introduced into the PEI cable support, so that the strength and the high-temperature resistance of the PEI cable support are effectively improved under the condition of ensuring excellent insulativity of a device.

Description

technical field [0001] The invention relates to the technical field of insulating materials, in particular to a modified polyetherimide material, a preparation method thereof, and a cable support. Background technique [0002] Polyetherimide (PEI) also has excellent high temperature resistance, flame retardancy, insulation, electrical properties and mechanical properties. PEI is widely used in engines as insulated cable supports. However, pure PEI has poor anti-friction and wear resistance, poor impact performance, and short-term resistance to 180 °C. When the PEI cable support is used as a fixed device in the engine, due to the long-term high and low temperature working conditions, deformation, serious wear and even failure occur, which restricts the development and application of this material product. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a modified polyetherimide material, a preparation method thereof, and a cable suppor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/08C08K7/14C08K3/02C08K7/00
CPCC08K7/14C08K3/02C08K7/00C08L2201/08C08L79/08
Inventor 王廷梅谢海张海军
Owner 兰州中科聚润新材料有限公司
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