New method of silicon nanotube/ wire modified fiber surface

A technology for modifying fibers and silicon nanotubes, which is applied in fiber processing, textile and papermaking, physical processing, etc., can solve the problems of difficulty in controlling the uniformity of fiber surface bonding, reducing the performance and flexibility of the fiber body, and being difficult to industrialize. Achieve the effect of reducing chemical consumption and production cost, improving hydrolysis resistance, and increasing roughness

Inactive Publication Date: 2015-09-02
四川天策聚材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these methods can improve the UV resistance and hydrolysis resistance of high-performance fibers to a certain extent, they have high processing costs and long time (usually the modification time is more than 24 hours), and will reduce the fiber body performance and flexibility at the same time. , or face problems such as difficulty in controlling the uniformity of bonding with the fiber surface
[0005] As a new type of one-dimensional nanomaterial, silicon nanotubes / wires have good application prospects in nanoelectronic devices, optoelectronic devices and integrated circuits. Silicon nanotubes / wires have become an important one because they are compatible with modern semiconductor processes. As one of the nano-semiconductor materials, a variety of methods have been developed to prepare silicon nanotubes / wires, such as laser ablation, thermal evaporation, chemical Vapor deposition (CVD) and template method etc., but these methods equipment is expensive, and method is loaded down with trivial details, is difficult for industrialization

Method used

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  • New method of silicon nanotube/ wire modified fiber surface
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  • New method of silicon nanotube/ wire modified fiber surface

Examples

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Embodiment 1

[0041] (1) Cleaning and drying of fibers: heat and reflux Kevlar49 fibers in acetone, petroleum ether and deionized water for 3 hours respectively, put the cleaned fibers in a vacuum drying oven, and dry them at 80°C for 12 hours. See the whole and part of figure 1 and figure 2 ;

[0042](2) Plasma treatment of fibers: place the fibers obtained in step (1) in a plasma generating device, and process them in an air atmosphere for 5 minutes under the condition of a power of 150W;

[0043] (3) Fiber modification: add 0.1ml methyltriethoxysilane in 90ml toluene, then add 0.6ml hydrochloric acid, stir to get 0.1% acidic methyltriethoxysilane toluene organic solution, the (2) Immerse the treated fibers in the prepared acidic silane organic solution, and stir for 7 hours at 30°C and 450rpm;

[0044] (4) Cleaning and drying of the modified fiber: The modified Kevlar49 fiber was washed with acetone, absolute ethanol and a large amount of deionized water respectively, and then put in...

Embodiment 2

[0047] (1) Cleaning and drying of fibers: Heat and reflux the glass fibers in acetone, petroleum ether and deionized water for 3 hours respectively, then place the cleaned fibers in a vacuum drying oven and dry them at 80°C for 12 hours, see Figure 5 ;

[0048] (2) Plasma treatment of fibers: place the fibers obtained in step (1) in a plasma generating device, and process them in an air atmosphere for 5 minutes under the condition of a power of 150W;

[0049] (3) Fiber modification: 1.2ml methyltriethoxysilane is added in 90ml toluene, then add 0.6ml hydrochloric acid, stir to obtain the toluene organic solution of 1.3% acidic methyltriethoxysilane. (2) Immerse the treated fibers in an acidic silane organic solution, and stir for 3 hours at 30°C and 450rpm;

[0050] (4) Cleaning and drying of the modified fiber: Wash the modified glass fiber with acetone, absolute ethanol and a large amount of deionized water respectively, put it in a vacuum drying oven after cleaning, and d...

Embodiment 3

[0052] (1) Cleaning and drying of fibers: heat and reflux the glass fibers in acetone, petroleum ether and deionized water for 3 hours respectively, then place the cleaned fibers in a vacuum drying oven and dry them at 80°C for 12 hours;

[0053] (2) Plasma treatment of fibers: place the fibers obtained in step (1) in a plasma generating device, and process them in an air atmosphere for 5 minutes under the condition of a power of 150W;

[0054] (3) Fiber modification: 1.2ml methyltriethoxysilane is added in 90ml toluene, then add 0.6ml hydrochloric acid, stir to obtain the toluene organic solution of 1.3% acidic methyltriethoxysilane. (2) Immerse the treated fibers in an acidic silane organic solution, and stir for 7 hours at 30°C and 450rpm;

[0055] Cleaning and drying of the modified fiber: Wash the modified glass fiber with acetone, absolute ethanol and a large amount of deionized water respectively, put it into a vacuum drying oven after cleaning, and dry it at 80°C for 1...

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Abstract

The invention relates to a new method of a silicon nanotube / wire modified fiber surface. The new method of the silicon nanotube / wire modified fiber surface belongs to the technical field of fiber surface modification, and comprises the following steps of heating and refluxing fiber in organic solvent and deionized water sequentially, and vacuum drying for 1-12h at the temperature of 60-120 DEG C; putting the processed fiber into a plasma generation device, and processing for 10s-20min in gas atmosphere under the condition with the power being 50-400W; preparing silane, the organic solvent and protonic acid into acid-stage silane organic solvent with the volume fraction being 0.1-20 percent, putting the processed fiber into the solvent, and stirring for 0.1-36h under the conditions with the temperature being 0-80 DEG C and the rotary speed being 50-1000rpm; cleaning up the modified fiber through the organic solvent and the deionized water sequentially, and vacuum drying for 1-12h at the temperature of 60-120 DEG C. The roughness of the fiber surface modified by the method is obviously increased, the hydrophobicity of the fiber is improved, and the hydrolytic resistant capacity of the fiber is efficiently improved.

Description

technical field [0001] The invention relates to a new method for modifying the surface of fibers by silicon nanotubes / wires, and belongs to the technical field of fiber surface modification. Background technique [0002] High-performance fibers or fiber fabrics have excellent mechanical properties (high specific strength and high specific modulus) and unique low density, good thermal stability and chemical stability, and are widely used in aerospace, electronic information, energy vehicles, textiles, etc. It has been widely used in chemical industry and other fields. However, the sensitivity of these fibers and fiber fabrics to rainwater leads to the degradation of the structure and performance of fibers and fiber fabrics, which seriously affects the safety and reliability of fibers and fiber fabrics. [0003] In order to improve and enhance the hydrolytic corrosion resistance of the fiber and its adhesion with the resin matrix, improve the bonding force and comprehensive p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M10/08
Inventor 李云涛王斌雷兵航李辉赵春霞
Owner 四川天策聚材科技有限公司
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