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Coiling micro-carbon spring and preparation method thereof

A micro-carbon and spring shaft technology, applied in the field of multi-functional carbon fiber materials, can solve the problems of difficult synthesis, irregular spring shape, and elasticity (limited stretchability, etc.)

Active Publication Date: 2015-08-19
GUANGDONG SHUANGHONG NEW MATERIAL TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The synthesized double-coil spring carbon fiber (two fibers are coiled synchronously), when the gap between the fibers is small or even zero, the elasticity (stretchability) is limited; when the gap between the fibers is relatively large , good elasticity, but the shape of the spring is not regular enough, so it is not suitable for micro-electromechanical circuits or micro-heating elements in the form of a single or several springs
[0005] The first-heavy spiral micro-carbon spring (convoluted by a single carbon filament) has better microelectromechanical properties than the double-helical micro-carbon spring, but it is difficult to synthesize in large quantities. The spring also has the problem that the shape of the spring is not regular enough, and it is not suitable for use in a micro-electromechanical circuit or a micro-heating element in the form of a single or several springs

Method used

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  • Coiling micro-carbon spring and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Incorporate 70% by weight mineral Cu 5 FeS 4 and 30% mineral FeS 2 Mixing, the granular carrier aluminum oxide (Sumitomo Chemical KC~501, particle size 1.5μm, specific surface area 200m 2 / g) into the ball mill jar, and then sieve the powder catalyst into the ball mill in batches, the ratio of catalyst and carrier is 0.07, and the ball mill mixes the catalyst to evenly disperse the catalyst on the micro surface of the carrier powder to form a carrier catalyst.

[0048] Spread 0.5g of the supported catalyst on the 300cm of the reaction tube 2 On the surface of the rectangular flat substrate, heat the reaction tube to 650°C under a nitrogen atmosphere of 250 sccm, then introduce 140 sccm of acetylene and 300 sccm of hydrogen, and at the same time introduce a small amount of iron sulfide powder with the nitrogen flow at both ends of the reaction tube, and maintain the reaction temperature for 2 hours. Get a double coil micro carbon spring.

[0049] The average diameter...

Embodiment 2

[0051] CuFeS 2 The powder catalyst is ground into minerals with a nano grinder, and the granular carrier silica (particle size 0.5μm, specific surface area 300m 2 / g or more) into the ball mill jar, and then sieve the powder catalyst into the ball mill in batches, the mass ratio of the catalyst to the carrier is 0.18, and the ball mill mixes the catalyst to evenly disperse the catalyst on the micro surface of the carrier powder to form a carrier catalyst.

[0052] Spread 1.5g of the supported catalyst on the surface of the rectangular flat plate substrate in the reaction tube, heat the reaction tube to 750°C in the reaction tube under a nitrogen atmosphere of 250 sccm, then introduce 180 sccm of acetylene, 400 sccm of hydrogen, and use the nitrogen flow at both ends of the reaction tube Introduce a small amount of iron sulfide powder and maintain the reaction temperature for 3 hours to obtain a double spiral micro carbon spring.

[0053] The average diameter of the obtained o...

Embodiment 3

[0055] Incorporate 80% by weight mineral FeS 2 and 20% mineral Cu 2 FeSnS 4 Mix and grind into a powder catalyst with a nano grinder, sieve the granular carrier Al2O3 KC~501 into the ball mill jar, and then sieve the powder catalyst into the ball mill in batches, the mass ratio of the catalyst to the carrier is 0.7, and ball mill to mix The catalyst is uniformly dispersed on the micro-surface of the carrier powder to form a supported catalyst;

[0056] Spread 3.5g of the supported catalyst on the 300cm in the reaction tube 2 On the surface of the rectangular flat substrate, heat the reaction tube to 820°C in a nitrogen atmosphere of 250 sccm, then introduce 160 sccm of acetylene and 360 sccm of hydrogen, and at the same time introduce a small amount of iron sulfide powder with the nitrogen flow at both ends of the reaction tube, and maintain the reaction temperature for 2 hours. Get a double coil micro carbon spring.

[0057] The average diameter of the prepared one-fold s...

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Abstract

The invention discloses a coiling micro-carbon spring and a preparation method thereof. The diameter of the micro-carbon spring ranges from 0.5 micrometer to 50 micrometers, the screw pitch of the spring ranges from 0.1 micrometer to 50 micrometers, the diameter of a carbon filament (namely a single wire) forming the micro-carbon spring ranges from 0.05 micrometer to 2 micrometers, the length of the spring is increased along with prolonging of reaction time and can reach 2-5mm when the reaction time reaches 2 hours, the micro-carbon spring regularly coils along a spring shaft by the aid of invariable diameter and screw pitch of the spring and has fine elasticity, telescopic characteristics of the spring meet a Hooke law, and the electrical resistivity of the spring ranges from 10 omega to 4 omega. The coiling micro-carbon spring easily bears pressure and stress from various aspects, is not easily broken and is applicable to micro-electronic mechanical circuits or micro-heating elements. By the preparation method, the yield of the coiling micro-carbon spring can be improved and reaches more than 5mg / cm<2>, and the purity of the coiling micro-carbon spring in a product is higher than 95%.

Description

【Technical field】 [0001] The invention relates to a single-heavy spiral micro-carbon spring and a preparation method thereof, belonging to the technical field of multifunctional carbon fiber materials. 【Background technique】 [0002] In the field of carbon fiber materials, spring-like carbon fibers (referred to as micro-carbon springs) have excellent properties of carbon materials and unique shapes like coil springs, making them suitable for use in micro-electromechanical components, micro-heating elements, micro-sensor devices, electromagnetic materials, and composite materials. The application of material additives and other aspects has broad prospects. Therefore, the industrial preparation of micro-carbon springs and the optimization of their own characteristics are the key research objects in the field of this type of carbon fiber materials. The application performance of the micro carbon spring depends on its own morphological characteristics, including the multiplicit...

Claims

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Application Information

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IPC IPC(8): C01B31/02
Inventor 杨少明
Owner GUANGDONG SHUANGHONG NEW MATERIAL TECH CO LTD
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