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

Functional composite material used for spacecraft and preparation method thereof

A composite material and functional technology, applied in the field of functional composite materials for spacecraft and its preparation, can solve problems such as internal electric field rise, polymer dielectric discharge, breakdown and burnout, etc., and achieve electrostatic field strength suppression, high insulation performance, Ease of Charge Level Effects

Inactive Publication Date: 2013-04-17
XI AN JIAOTONG UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Spacecraft operating in the space environment is irradiated by various high-energy particles, which will lead to the deposition of charges in the medium to form an internal electric field, and typical polymer media have extremely high resistivity, so the deposited charges cannot be released and accumulate, leading to a continuous rise in the internal electric field, eventually causing polymerization Physical dielectric discharge phenomenon or even breakdown and burning

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Functional composite material used for spacecraft and preparation method thereof
  • Functional composite material used for spacecraft and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the preparation method of the functional composite material for the spacecraft of this embodiment comprises the following steps:

[0026] Step 1: Zinc oxide ZnO dispersion and surface treatment, weigh the zinc oxide ZnO powder with a powder diameter of 95 μm and add it to alcohol with a volume 5 times the volume of the zinc oxide ZnO powder, then mix the zinc oxide ZnO powder with the alcohol The mixture was dispersed in an ultrasonic vibrator for 30 minutes. During the ultrasonic vibration process, a coupling agent accounting for 1% by mass percentage of zinc oxide ZnO was added to the mixture solution, and then the dispersion solution added with the coupling agent was dried in an oven for 24 hours. The drying temperature is 100°C, and the dispersed and surface-treated zinc oxide ZnO raw material is obtained after drying the alcohol, and the coupling agent is silane coupling agent KH550;

[0027] Pretreatment of polytetrafluoroethylene PTFE ...

Embodiment 2

[0033] Such as figure 1 As shown, the preparation method of the functional composite material for the spacecraft of this embodiment comprises the following steps:

[0034] Step 1: Zinc oxide ZnO dispersion and surface treatment, weigh the zinc oxide ZnO powder with a powder diameter of 50 μm and add it to the alcohol whose volume is 10 times the volume of the zinc oxide ZnO powder, and then mix the zinc oxide ZnO powder with the alcohol The mixture was dispersed in an ultrasonic vibrator for 60 minutes. During the ultrasonic vibration process, a coupling agent accounting for 5% by mass percentage of zinc oxide ZnO was added to the mixture solution, and then the dispersion solution with the coupling agent was placed in an oven and dried for 36 hours. The drying temperature is 80°C, and the dispersed and surface-treated zinc oxide ZnO raw material is obtained after drying the alcohol, and the coupling agent is silane coupling agent KH550;

[0035] Pretreatment of polytetrafluor...

Embodiment 3

[0041] Such as figure 1 As shown, the preparation method of the functional composite material for the spacecraft of this embodiment comprises the following steps:

[0042] Step 1: Zinc oxide ZnO dispersion and surface treatment, weigh the ZnO powder with a preset quality of powder diameter of 10 μm, add it to alcohol with a volume 7 times the volume of the zinc oxide ZnO powder, and then place the mixture of zinc oxide ZnO powder and alcohol Disperse in an ultrasonic vibrator for 50 minutes. During the ultrasonic vibration process, add a coupling agent accounting for 3% of the mass percentage of zinc oxide ZnO to the mixture solution, and then place the dispersion solution with the coupling agent in an oven to dry for 30 hours. The drying temperature at 90°C, dry the alcohol to obtain dispersed and surface-treated zinc oxide ZnO raw materials, and the coupling agent is silane coupling agent KH550;

[0043] Pretreatment of polytetrafluoroethylene PTFE suspension material, weig...

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

No PUM Login to View More

Abstract

The invention discloses a functional composite material used for a spacecraft, comprising the following components: matrix resin and additive, wherein the matrix resin is micrometer-scale poly tetra fluoro ethylene (PTFE); the additive is micro-nano-scale zinc oxide (ZnO); and the composite material comprises the following components in the percentage by weight: 90-99wt% of PTFE and 1-10t% of zinc oxide (ZnO). The preparation method for the functional composite material used for a spacecraft comprises the following steps of: dispersing zinc oxide (ZnO); carrying out surface treatment and PTFEsuspension material pretreatment; mixing the two raw materials; and repeatedly dispersing, grinding and carrying out cold treatment, cold press molding, high-temperature shaping and low-temperature shaping. The composite material prepared with the method disclosed by the invention can quickly and efficiently lower the deep electrified level under the spatial extreme environment, and electrified harm problem brought by environmental factors can be solved.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and in particular relates to a functional composite material for spacecraft and a preparation method thereof. Background technique [0002] Polymer dielectric is a non-metallic material widely used in spacecraft components, mainly for the functions of insulation and support. Polytetrafluoroethylene PTFE is a typical polymer medium for spacecraft, mainly used in cable insulation medium. [0003] Spacecraft operating in the space environment is irradiated by various high-energy particles, which will lead to the deposition of charges in the medium to form an internal electric field, and typical polymer media have extremely high resistivity, so the deposited charges cannot be released and accumulate, leading to a continuous rise in the internal electric field, eventually causing polymerization Physical dielectric discharge phenomenon or even breakdown and burnt. Contents of the...

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 Patents(China)
IPC IPC(8): C08L27/18C08K3/22C08K9/06B29C43/58B29C35/00
Inventor 郑晓泉乌江
Owner XI AN JIAOTONG UNIV