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High-compressive-strength low-density material and application thereof

A low-density material, compressive strength technology, applied in the direction of additive processing, single-component polyester rayon, single-component polyamide rayon, etc., can solve the problem of only 30KPa compressive strength

Pending Publication Date: 2020-12-11
上海申蓝装备技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the literature [Adv.Mater., 2019, DOI:10.1002 / adma.201900651], a phenolic resin nanofiber aerosol is obtained through a simple hydrothermal reaction, and then a stable hard carbon-based nanofiber aerosol can be obtained by carbonizing the aerosol , the density is about 1.3-1.4g / cm 3 , but the compressive strength is only 30KPa

Method used

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  • High-compressive-strength low-density material and application thereof
  • High-compressive-strength low-density material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Control the temperature in the reaction kettle to minus 30°C, add 90 parts of concentrated sulfuric acid with a mass fraction of 98% into the reaction kettle, add 1 part of flake graphite, 10 parts of hydrogen peroxide, and 1 part of potassium permanganate in turn under stirring, and react for 2 hours to obtain Sulfur oxide graphite; at room temperature, the sulfur-containing graphite oxide is added to a mixed solution of water and ethanol, stirred and dispersed evenly to obtain a sulfur-containing graphite oxide dispersion; wherein, the volume fraction of water in the mixed solution of water and ethanol is 20 %;

[0030] Under a protective gas atmosphere, add 3 parts of ferrocene to 100 parts of the sulfur-containing graphite oxide dispersion, control the reaction temperature to 1200 ° C, collect gasification products, and obtain a carbon nanotube aerosol; the density of the aerosol is 0.83g / cm 3 ; The TEM result of described carbon nanotube aerosol is as figure 1 As...

Embodiment 2

[0034] Control the temperature in the reaction kettle to minus 20°C, add 70 parts of concentrated sulfuric acid with a mass fraction of 98% into the reaction kettle, add 1 part of flake graphite, 30 parts of hydrogen peroxide, and 1 part of potassium permanganate successively under stirring, and react for 2 hours to obtain Sulfur oxide graphite; at room temperature, adding the sulfur-containing graphite oxide into the mixed solution of water and methanol, stirring and dispersing evenly to obtain a sulfur-containing graphite oxide dispersion; wherein, the volume fraction of water in the mixed solution of water and methanol is 10 %;

[0035] Under a protective gas atmosphere, add 5 parts of ferrocene to 100 parts of the sulfur-containing graphite oxide dispersion, control the reaction temperature to be 1100 ° C, collect gasification products, and obtain carbon nanotube aerosol; the density of the aerosol is 0.84g / cm 3 ; The TEM results of the carbon nanotube aerosol show that t...

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Abstract

The invention relates to a high-compressive-strength low-density material and application thereof, and belongs to the field of composite materials. The preparation method comprises the following steps: preparing sulfur-containing graphite oxide, and then dispersing the sulfur-containing graphite oxide into a water-alcohol mixed solution; then adding ferrocene into the sulfur-containing graphite oxide dispersion liquid in a protective gas atmosphere, controlling the reaction temperature to be 900-1600 DEG C, and collecting a gasification product to obtain carbon nanotube aerosol; and finally mixing the carbon nano tube aerosol with a high polymer material to obtain the carbon nano tube aerosol. According to the invention, the material is low in density and high in compressive strength, andis extruded by screw extrusion equipment to obtain a high-compressive-strength low-density material filament, and the filament is used as a 3D printing material.

Description

technical field [0001] The invention relates to a material with high compressive strength and low density and its application, which belongs to the field of composite materials. Background technique [0002] Sustainable development is a very important initiative of today's era, and it is also the future that mankind will eventually move towards. In today's increasingly severe environmental problems, all industries are trying their best to save energy and reduce emissions. Among them, lightweight technology is particularly important, especially in the fields of automobiles, ships, aerospace vehicles, etc., and the discovery of each lightweight material may promote an industry change. The so-called lightweight is not "unscrupulous" to reduce weight blindly. It means to reduce weight as much as possible while ensuring performance (stiffness, strength). The use of common alloy materials is a good example. [0003] In the field of portable equipment, such as portable seawater d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L25/06C08L77/00C08L69/00C08L23/12C08L55/02C08L67/04C08L81/06C08L67/02C08K3/04D01F6/90D01F1/10D01F6/94B33Y70/10D01F6/46D01F6/44D01F6/92D01F6/88
CPCC08K3/041D01F6/90D01F1/10D01F6/94B33Y70/10D01F6/46D01F6/44D01F6/92D01F6/88C08K2201/005C08K2201/011C08L77/02C08L61/16
Inventor 武桐张广德刘士中
Owner 上海申蓝装备技术有限公司
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