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

Nano barium hydroxide/hexagonal boron nitride nano composite material and preparation method thereof

A nanocomposite material, hexagonal boron nitride technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as no fireproof function, and achieve the effect of a simple method

Inactive Publication Date: 2018-04-06
NORTHWESTERN POLYTECHNICAL UNIV
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to avoid the deficiencies of the prior art, the present invention proposes a nano-barium hydroxide / hexagonal boron nitride nanocomposite material and a preparation method to solve the problem that the cultural relics do not have fire protection function after the cultural relics are strengthened by nano-barium hydroxide

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

Embodiment 1

[0019] Mix barium hydroxide octahydrate and hexagonal boron nitride oxide powder into isopropanol and place in a closed container filled with high-purity argon. The mass ratio of barium hydroxide octahydrate, hexagonal boron nitride oxide and absolute ethanol is 1:61.5:100. The above mixture was heated and vigorously stirred to 200 degrees. After 36 hours of heat preservation, it was naturally cooled to room temperature. The cooled solution was poured into a beaker and dried in a vacuum drying oven at 30°C for 6 hours to obtain nano barium hydroxide / hexagonal boron nitride nano composite material.

Embodiment 2

[0021] Mix barium hydroxide octahydrate and hexagonal boron nitride oxide powder into isopropanol and place in a closed container filled with high-purity argon. The mass ratio of barium hydroxide octahydrate, hexagonal boron nitride oxide and absolute ethanol is 1:85.5:100. The above mixture was heated and stirred vigorously to 210°C. After 48 hours of heat preservation, it was naturally cooled to room temperature. The cooled solution was poured into a beaker and dried in a vacuum oven at 40°C for 9 hours to obtain nano barium hydroxide / hexagonal boron nitride nanocomposite material.

Embodiment 3

[0023] Mix barium hydroxide octahydrate and hexagonal boron nitride oxide powder into isopropanol and place in a closed container filled with high-purity argon. The mass ratio of barium hydroxide octahydrate, hexagonal boron nitride oxide and absolute ethanol is 1:110.5:100. The above mixture was heated and stirred vigorously to 215 degrees. After 60 hours of heat preservation, it was naturally cooled to room temperature. The cooled solution was poured into a beaker and dried in a vacuum drying oven at 50°C for 12 hours to obtain the nanometer barium hydroxide / hexagonal boron nitride nanocomposite material.

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 relates to a nano barium hydroxide / hexagonal boron nitride nano composite material and a preparation method thereof. The nano composite material contains the following components in percentage by mass: 10-15% of hexagonal boron nitride and the balance of barium hydroxide. The preparation method comprises the following steps: heating and stirring barium hydroxide octahydrate and oxidized hexagonal boron nitride powder in isopropanol, thereby obtaining the nano barium hydroxide / hexagonal boron nitride nano composite material. According to the method, volume production can be simplyrealized. Furthermore, due to the addition of the hexagonal boron nitride, compared with the conventional barium hydroxide, the barium hydroxide / hexagonal boron nitride nano composite material has the advantages that nano barium hydroxide particles are supported onto the hexagonal boron nitride sheet layer, and after the particles become barium carbonate after absorbing air, the barium carbonateparticles become large-grained barium carbonate due to connection of the hexagonal boron nitride sheets. On one hand, gaps among cultural relics can be connected so as to strengthen the cultural relics; on the other hand, due to excellent thermal stability of the hexagonal boron nitride, the cultural relics can achieve fireproof properties, so that the cultural relics can be prevented from being damaged in accidental fire.

Description

technical field [0001] The invention belongs to the field of material preparation, and relates to a nanometer barium hydroxide / hexagonal boron nitride nanocomposite material and a preparation method. Background technique [0002] Barium hydroxide is a basic chemical raw material with a wide range of uses. At present, the use of barium hydroxide has developed rapidly in the manufacture of barium salts and organic barium compounds. In addition, barium hydroxide is also required for the preparation of refined animal and vegetable oils and sucrose that people usually eat (CN201310240980.8, China). In addition, barium hydroxide can also be used to quantitatively measure carbon dioxide, chlorophyll content and pesticides, rubber production. Unlike most other bases, barium hydroxide is a strong base soluble in water, which makes it suitable for deacidification of cultural relics. With the development of the chemical industry, new uses of barium hydroxide are gradually being expa...

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): C09K21/02B82Y30/00
Inventor 李炫华朱金萌
Owner NORTHWESTERN POLYTECHNICAL UNIV