Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for improving oxidation resistance of active Ti/2B nano powder material

A nano-powder and anti-oxidation technology, which is applied in the field of improving the oxidation resistance of active Ti/2B nano-powder materials, can solve problems such as safety hazards, activity loss, etc., to prevent agglomeration, improve oxidation resistance, and improve the preparation process Effect

Active Publication Date: 2018-10-12
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for improving the oxidation resistance of active Ti / 2B nano powder materials in order to solve the problems of activity loss and potential safety hazards caused by oxidation of active Ti / 2B nano powder materials. First synthesize nano-scale Ti powder and B powder, disperse the active Ti / 2B nano-powder by ball milling method, and then pre-polymerize with isocyanate and hydroxyl-terminated polymer to form a thin layer of polyurethane film on the surface of nanoparticles , to cover the Ti / 2B nano-powder particles to isolate them from the air to prevent further oxidation. Finally, the weight gain of the sample was tested. The analysis results showed that the prepared active Ti / 2B nano-powder material , its antioxidant activity was significantly 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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for improving oxidation resistance of active Ti/2B nano powder material
  • Method for improving oxidation resistance of active Ti/2B nano powder material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for improving the oxidation resistance of active Ti / 2B nano powder material, the specific steps are as follows:

[0031] (1) Preparation of active Ti / 2B nanopowder

[0032] (1) Synthesis of elemental boron powder

[0033] Pass boron trichloride and magnesium powder through a 200-mesh sieve, weigh 350g of boron trichloride and 180g of magnesium powder, mix for 10 minutes, heat to 700°C, continue the reaction for 1 hour, rinse with 30% hydrochloric acid after cooling down, and then rinse with distilled water Rinse, filter and dry to obtain the product for use.

[0034] Add 95g of KBF 4 and 75g of KHF 2 Put the mixture into the above product, heat to 900°C for 1 hour, rinse with 30% hydrochloric acid after cooling down, then rinse with distilled water, filter and dry to obtain 28g of elemental boron powder.

[0035] (2) Preparation of nano boron powder

[0036] Under low temperature (lower than 20°C), drying, and under the protection of argon, pass the obtain...

Embodiment 2

[0046] A method for improving the oxidation resistance of active Ti / 2B nano powder material, the specific steps are as follows:

[0047] (1) Preparation of active Ti / 2B nanopowder

[0048] (1) Synthesis of elemental boron powder

[0049] After diboron trioxide and magnesium powder pass through 80 mesh sieve, weigh 100g of diboron trioxide and 180g of magnesium powder, mix for 10min, heat to 700°C, continue to react for 1h, rinse with 40% hydrochloric acid after cooling down, and then Rinse with distilled water, filter and dry to obtain the product for use.

[0050] Add 95g of KBF 4 and 75g of KHF 2 Put the mixture into the above product, heat to 900°C for 1 hour, rinse with 40% hydrochloric acid after cooling down, then rinse with distilled water, filter and dry to obtain 30g elemental boron powder.

[0051] (2) Preparation of nano boron powder

[0052] Under low temperature (less than 20°C), drying, and under the protection of argon, pass the elemental boron powder obtai...

Embodiment 3

[0062] A method for improving the oxidation resistance of active Ti / 2B nano powder material, the specific steps are as follows:

[0063] (1) Synthesis of elemental boron powder

[0064] Pass the diboron trioxide and magnesium powder through a 100-mesh sieve, weigh 100g of diboron trioxide and 180g of magnesium powder, mix for 10min, heat to 600°C, continue the reaction for 1h, rinse with 45% hydrochloric acid after cooling down, and then use distilled water Rinse, filter and dry.

[0065] Add 95g of KBF 4 and 75g of KHF 2 The mixture was heated to 800° C. for 1 hour, rinsed with 45% hydrochloric acid after cooling down, and then rinsed with distilled water, filtered and dried to obtain 27.5 g of elemental boron powder.

[0066] (2) Preparation of nano boron powder

[0067] Under low temperature (lower than 20°C), drying, and under the protection of argon, pass the obtained elemental boron powder through a 30-mesh sieve, use a high-energy nano-mill, adopt dry ball milling, ...

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
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for improving oxidation resistance of an active Ti / 2B nano powder material, and belongs to the technical field of surface treatment of nano energy-containing materials. In view of the oxidizing problem of active Ti / 2B nanopowder, the active Ti / 2B nanopowder is dispersed by a high temperature ball milling method in an absolutely dry and anaerobic environment underpure Ar gas, and then in-situ polymerization is carried out to form a thin polyurethane film on the surface of nanoparticles to coat the Ti / 2B nano-powder particles, so that the Ti / 2B nano-powder particles are separated from air to prevent further oxidation. The prepared active Ti / 2B nano powder material has markedly-improved oxidation resistance. The thin polyurethane film is formed on the surface of the nanoparticles to coat the Ti / 2B nano-powder particles to improve the oxidation resistance according to the preparation process. The prepared active Ti / 2B nano-powder material is measured as follows: the weight gain of a sample is measured, and the reduction of measured oxide increment reaches 79%, and indicates that the oxidation resistance is remarkably improved.

Description

technical field [0001] The invention relates to a method for improving the oxidation resistance of active Ti / 2B nanometer powder materials, and belongs to the technical field of surface treatment of nanometer energetic materials. Background technique [0002] Nano-boron (B) powder is oxidized faster in an environment containing an oxidizing atmosphere. If there is moisture in the production and storage environment, the oxide layer on the surface of the boron powder and the water vapor in the environment will combine to form H 3 BO 3 . Existing research results have shown that the hindering effect of oxides in the ignition and combustion stages is the key factor restricting the wide application of boron in the field of energetic materials. Moreover, in the process of preparing energetic materials for casting, adding more nano-boron powder will cause the viscosity of the system to increase and the process to deteriorate. Therefore, attention should be paid to the storage of...

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): C06B27/00C01B35/02B82Y40/00
CPCB82Y40/00C01B35/023C06B27/00
Inventor 刘吉平刘晓波
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com