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Preparation method of resin matrix composite material toughened by nano-scale aluminum oxide hydroxide sheet material

A technology of aluminum oxyhydroxide and sheet material, which is applied in the field of preparation, can solve the problems of increased resin viscosity, difficulty in molding and processing composite materials, and failure to meet the load-bearing structure, and achieve the effect of improving interlayer fracture toughness

Active Publication Date: 2017-02-01
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the toughening effect of the first two methods is very good, the viscosity of the resin increases after toughening, which makes it difficult to form and process the composite material, and the mechanical properties are also greatly reduced, which cannot meet the requirements of the load-bearing structure.

Method used

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  • Preparation method of resin matrix composite material toughened by nano-scale aluminum oxide hydroxide sheet material
  • Preparation method of resin matrix composite material toughened by nano-scale aluminum oxide hydroxide sheet material
  • Preparation method of resin matrix composite material toughened by nano-scale aluminum oxide hydroxide sheet material

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Embodiment 1

[0023] Weigh 30g of aluminum nitrate, 9.1g of carbonamide, and 60ml of deionized water, mix them in a Erlenmeyer flask, place them in an oil bath at 50°C, and stir with a magnetic stirrer for 1 hour, then put the mixed solvent into the reaction kettle, together with the reaction kettle Put them together in an oven, raise the temperature to 160°C at a rate of 1°C / min, and keep it warm for 24 hours, then cool to room temperature naturally, pour the paste liquid in the reaction kettle into a beaker, and carry out ultrasonic stirring in deionized water , spread the filter paper into the suction filter funnel, then pour the liquid into the suction filter funnel for vacuum filtration several times, turn off the vacuum pump, soak and dry the reactant in the funnel with deionized water for 20 minutes, and repeat the suction filter, so Repeat several times until the filtrate dripping out of the funnel is not alkaline, and then filter it with ethanol several times in the funnel until the...

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Abstract

The invention discloses a preparation method of a resin matrix composite material toughened by a nano-scale aluminum oxide hydroxide sheet material, and belongs to the technical field of high performance of composite materials. The method comprises the steps that aluminum nitrate powder, carbamide powder and deionized water are mixed, stirred and transferred into an oil bath, and a mixing solution is obtained; sealing is performed under the temperature of 160 DEG C for 24 h, and a paste is obtained; the paste is washed and filtered in a decompression mode till a filtrate is neutral, and a filter cake is obtained; ethyl alcohol is used for washing, and finally the obtained filter cake is dispersed into ethyl alcohol again for use; dried nano-scale aluminum oxide hydroxide sheet powder m-phenylenediamine crystals are placed into an acetone solvent, and a mixed solvent is obtained; the mixed solvent is added into epoxy resin, and uniform stirring is performed to obtain a glue solution containing the nano-scale aluminum oxide hydroxide sheet material. The nano-scale aluminum oxide hydroxide sheet material is prepared through the simple and low-cost method, the nanometer material is added into the carbon fiber / epoxy composite material, the composite material is toughened, and the interlaminar fracture toughness of the composite material is greatly improved.

Description

technical field [0001] The invention relates to a method for preparing a toughened resin-based composite material made of nano-alumina oxyhydroxide sheet material, and belongs to the technical field of functional material preparation and composite material high performance. Background technique [0002] Lightweight and high-strength fiber-reinforced resin-based composite materials are widely used in aviation, aerospace, navigation, automobile, industry and other fields due to their excellent performance. With the improvement of performance requirements for composite materials in various fields, especially for high toughness Requirements, the toughening of resin-based composites has become an important direction of advanced composites research. Through the toughening treatment, the fracture toughness of the composite material can be effectively improved, and the weight reduction efficiency of the composite material can be improved. At present, the toughening methods of compo...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08K7/00C08K3/22C08K5/18
CPCC08K3/22C08K5/18C08K7/00C08K2003/2227C08K2201/011C08L63/00
Inventor 刘新武湛君孙涛何辉永
Owner DALIAN UNIV OF TECH
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