Two-dimensional fiber/boron nitride nanotube multistage reinforcement and preparation method thereof

A technology of boron nitride nanotubes and reinforcements, applied in the field of composite material preparation, to achieve the effects of easy availability, low raw material cost, and simple preparation process

Active Publication Date: 2015-09-16
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
View PDF3 Cites 81 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research on introducing boron nitride nanotubes into composite materials is still in its infancy, and

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
  • Two-dimensional fiber/boron nitride nanotube multistage reinforcement and preparation method thereof
  • Two-dimensional fiber/boron nitride nanotube multistage reinforcement and preparation method thereof
  • Two-dimensional fiber/boron nitride nanotube multistage reinforcement and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] The preparation method of the multi-stage reinforcement of the present invention, the specific steps are as follows:

[0027] 1) Iron ball mill tank and iron ball mill:

[0028] ①According to the mass ratio of balls to 1-150:1, put the boron source precursor powder and iron grinding balls in the iron ball milling tank, add non-aqueous solvent as the ball milling medium, or pass NH3 without adding liquid medium for ball milling Protection, ball milling at 150-440rpm for 24-150h;

[0029] ②The precursor after ball milling is added to the non-aqueous solvent consistent with the ball milling medium (if no liquid ball milling medium is added during the ball milling, a non-aqueous solvent can be added directly) to form a slurry, and the two-dimensional fiber fabric is cut. Put it into the above-mentioned slurry for dipping, and perform ultrasound for 1 hour during the dipping process to ensure good suspension of the slurry. Put the impregnated two-dimensional fiber fabric into a d...

Example Embodiment

[0062] Example 1:

[0063] According to the ball-to-material mass ratio of 20:1, the boron powder and stainless steel grinding balls are placed in a stainless steel ball milling tank, ethanol is added as the ball milling medium, and the ball milling is performed at 400 rpm for 80 hours. The precursor after ball milling is added to a proper amount of ethanol to prepare a slurry, a small piece of two-dimensional carbon fiber fabric is cut out, and it is immersed in the slurry, and the dipping process is ultrasonicated for 1 hour to ensure good suspension of the slurry. Then put the impregnated two-dimensional carbon fiber fabric into a drying box and dry it at 85°C for 1 hour. Finally, the impregnated and dried two-dimensional carbon fiber fabric is put into a high-pressure nitriding furnace, and high-purity nitrogen is introduced until the pressure in the high-pressure furnace reaches 2MPa, and the temperature of the high-pressure furnace is increased to 1400°C for the growth temp...

Example Embodiment

[0064] Example 2:

[0065] When the precursor powder is ball milled, the liquid ball milling medium is not added, and only NH3 is passed in for protection. The others are the same as in Example 1. As a result, a two-dimensional fiber / boron nitride nanotube multi-level reinforcement is obtained.

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 relates to a two-dimensional fiber/boron nitride nanotube multistage reinforcement and a preparation method thereof. In the two-dimensional fiber/boron nitride nanotube multistage reinforcement, boron nitride nanotubes are uniformly distributed on the surface of two-dimensional fibers. The preparation method for the two-dimensional fiber/boron nitride nanotube multistage reinforcement is innovatively explored for the first time, and the desired two-dimensional fiber/boron nitride nanotube multistage reinforcement is prepared. The preparation method is simple; raw materials for the reinforcement are cheap, safe and easily available; and a foundation is laid for subsequent construction of a three-dimensional fiber/boron nitride nanotube multistage reinforcement and research and development of a multistage reinforced composite.

Description

technical field [0001] The invention belongs to the technical field of composite material preparation, and in particular relates to a two-dimensional fiber / boron nitride nanotube multilevel reinforcement and a preparation process thereof. Background technique [0002] Since Rubio et al. theoretically predicted the existence of boron nitride nanotubes by tight-binding molecular dynamics in 1994, and in 1995, Chorpa et al. successfully prepared them for the first time by arc discharge method. Boron nitride nanotubes have been It has become another research hotspot of new nanomaterials after carbon nanotubes. The structure of boron nitride nanotubes is similar to that of carbon nanotubes. It can be regarded as a nanotube material in which B and N atoms are replaced by C atoms, and has excellent mechanical properties similar to those of carbon nanotubes. Its tensile modulus is as high as 1.2 TPa. The theoretical prediction of the thermal conductivity of boron nitride nanotubes...

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
IPC IPC(8): C04B35/80C04B35/583C04B35/622
Inventor 董绍明朱广祥阚艳梅王震张翔宇何平高乐
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap