Preparation method and application of carbon-fiber-reinforced macromolecule-based composite

A polymer-based, composite material technology, applied in the coating and other directions, can solve problems such as nanoparticle agglomeration, and achieve the effects of simple and easy-to-control process, short preparation cycle, and easy industrial production.

Active Publication Date: 2016-06-22
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mechanical blending and deposition methods can only physically introduce the synthesized nanoparticles into the composite material, which tends to lead to agglomeration of the nanoparticles
In addition, since the improvement of interfacial bonding is mainly achieved by nanoscale effects, the bonding is weak

Method used

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  • Preparation method and application of carbon-fiber-reinforced macromolecule-based composite
  • Preparation method and application of carbon-fiber-reinforced macromolecule-based composite
  • Preparation method and application of carbon-fiber-reinforced macromolecule-based composite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for preparing a carbon fiber reinforced polymer matrix composite material, comprising the following steps:

[0030] Step 1: Weigh 0.5~5gA (A can be potassium permanganate, ammonium molybdate, sodium tungstate, zinc chloride, copper chloride, titanium chloride, aluminum chloride and other salts required for the synthesis of metal oxides) , dissolved in 40-80ml of B solvent (can be water, ethanol, propanol and ethylene glycol, etc.), configured into a C solution with a molar concentration of 0.01-5mol / L, and adjusted its pH to be acidic;

[0031] Step 2: Put the carbon arrangement in an acetone solution and ultrasonically clean it for 2-10 hours, take it out, wash it with deionized water, and dry it. Then place the dried carbon in 0.1-2mol / L potassium permanganate solution and soak for 12-36 hours (the purpose of soaking in potassium permanganate solution is to remove the organic matter on the surface of the carbon fiber. Of course, it can also be treated with ni...

Embodiment 2

[0036] Step 1: Combine 0.01-5mol / L A solution (A can be the salt required for the synthesis of sulfides such as ammonium molybdate, sodium tungstate, sodium metasquarate, cupric chloride, ferric chloride) and 0.01-5mol / L The B solution (B can be organic or inorganic sulfur source solutions such as thioacetamide, sodium sulfide, copper reagent, sodium diethyldithiocarbamate, sulfuric acid, ammonium peroxodisulfate) is uniformly mixed, and its pH value is adjusted to Acidic, to obtain a mixture C;

[0037] Step 2: Weigh 0.1g-5g of carbon nanofibers and place them in a molding machine, and let them stand for 10min-60min under a pressure of 2Mpa-15Mpa to obtain a carbon nanofiber sheet D with a thickness of 0.5mm-10mm. Wash with ethanol and deionized water for 3 to 6 times respectively, and dry at 60-100°C;

[0038] Step 3: Transfer the C solution into the reaction kettle, and add the nano-carbon fiber sheet D in step 2, seal it and place it in a hydrothermal induction heating de...

Embodiment 3

[0043] Step 1: Weigh 0.5-5g of A (A can be the salt required for the synthesis of non-metallic oxides such as orthosilicate, calcium carbonate, etc.), dissolve it in 40-80ml of B solvent (it can be water, ethanol, propanol and ethanol Diol, etc.), configured as a C solution with a molar concentration of 0.01 to 5 mol / L, and adjusted its pH to be alkaline;

[0044] Step 2: Put the chopped carbon fiber (100um-800um in length, 10-20um in diameter) in an acetone solution for ultrasonic cleaning for 2-10 hours, take it out, wash it with deionized water, and then dry it. Then soak the dried chopped carbon fibers in 0.1-2 mol / L nitric acid solution for 12-36 hours. Finally, the soaked chopped carbon fibers are cleaned and dried with deionized water;

[0045] Step 3: Weighing 1g to 6g of the chopped carbon fiber in step 2 and dissolving it in 50 to 200ml of water, and filtering it through a sand core funnel suction filter device to obtain a chopped carbon fiber sheet D with a certain...

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Abstract

The invention discloses a preparation method and application of a carbon-fiber-reinforced macromolecule-based composite. A saline solution required by an inorganic compound is put in a reaction kettle, a base material used for inducting an alternating magnetic field is put in the reaction kettle, the reaction kettle is sealed and then put into water-heat induction heating equipment, then the reaction kettle is cooled to the room temperature, and the base material loaded with the inorganic compound is taken out to be cleaned and dried; and finally, hot press molding is conducted on the base material, and the carbon-fiber-reinforced macromolecule-based composite is obtained. According to the method and application, the water-heat induction heating technology is applied to surface grafting of a carbon fiber, and the defect that the carbon fiber cannot be combined with other components easily due to surface inertia of the carbon fiber is overcome. In addition, under the action of the alternating magnetic field, multiple kinds of nanometer materials are promoted to grow on the surface of the carbon fiber due to the high temperature of the carbon fiber, more engaged position points are provided for bonding of the carbon fiber and resin, and interfacial bonding of the carbon fiber and the resin and the mechanical performance of the composite are improved.

Description

【Technical field】 [0001] The invention belongs to the technical field of composite material preparation, and relates to a preparation method and application of a carbon fiber reinforced polymer matrix composite material. 【Background technique】 [0002] Carbon fiber is often used as a reinforcing material for polymer matrix composites because of its excellent comprehensive properties (high specific modulus and strength-to-weight ratio, low thermal expansion, high electrical conductivity, high thermal conductivity, wear resistance, and high temperature resistance, etc.) [Zhou Xiya Ed. Composite Materials. Beijing: Chemical Industry Press, 2005.01.]. However, due to the small surface energy of carbon fiber, poor wettability with the resin matrix, and poor interface bonding performance, the mechanical properties of the composite materials prepared by it are often different from the theoretical value [ChoiI, LeeDG. 2013;48:1-8.]. [0003] Therefore, proper treatment of the carb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/40B29C70/54B29B15/10
CPCB29B15/10B29C70/40B29C70/54
Inventor 黄剑锋李文斌
Owner SHAANXI UNIV OF SCI & TECH
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