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A kind of sensor and preparation method for monitoring composite material liquid forming process

A technology of liquid molding and composite materials, which is applied in the direction of using electric/magnetic devices to transfer sensing components, nano-carbon, titanium carbide, etc., can solve the problems of incomplete filling of composite material components, and achieve sensitivity improvement, high precision and reliability. Operability, the effect that is conducive to the promotion and application

Active Publication Date: 2021-06-29
SHENYANG AEROSPACE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the object of the present invention is to provide a new type of sandwich structure transition metal carbide (MXene) / carbon nanotube (CNT) with high sensitivity, controllable curved surface, integral molding with composite materials, and low cost. Micro-nano sensors are used for real-time monitoring of composite material liquid molding process, improve the problem of incomplete mold filling of composite material components, and provide useful guidance for material design, mold design, mold filling pressure regulation and process system formulation in composite material production. It has important application value in practical engineering

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  • A kind of sensor and preparation method for monitoring composite material liquid forming process
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Embodiment 1

[0025] The MXene powder in the embodiment of the present invention is that the particle size produced by Forsman Technology (Beijing) Co., Ltd. is 200 mesh Ti 3 C 2 , the carbon nanotubes are multi-walled carbon nanotubes with a diameter of 8-15nm and a length of 50μm produced by Zhongke Nano Times Co., Ltd., the conductive silver paste is produced by Shenzhen Mingbo Electronic Materials Co., Ltd., and the ethanol and acetone are from Galaxy Pharmaceutical Group The reagent company produces, the PU film is produced by Bairong Medical Materials Co., Ltd., the composite material reinforcement is the unidirectional continuous glass fiber cloth with a single layer thickness of 0.4mm produced by Yixing Fuxing Glass Fiber Co., Ltd., and the composite material matrix is ​​Jinan Changhua resin T-158 type vinyl resin produced by Chemical Co., Ltd. The monitoring object is the resin filling process of the typical vacuum assisted resin infusion (VARI) process in LCM.

[0026] A method ...

Embodiment 2

[0035] The MXene powder in the embodiment of the present invention is that the particle size that Fosman Technology (Beijing) Co., Ltd. produces is 300 mesh Ti 3 C 2 , the carbon nanotubes are multi-walled carbon nanotubes with a diameter of 8-15nm and a length of 50μm produced by Zhongke Nano Times Co., Ltd., the conductive silver paste is produced by Shenzhen Mingbo Electronic Materials Co., Ltd., and the ethanol and acetone are from Galaxy Pharmaceutical Group The reagent company produces, the PU film is produced by Bairong Medical Materials Co., Ltd., the composite material reinforcement is a woven basalt fiber cloth with a single layer thickness of 0.6mm produced by Sichuan Tuoxin Research Institute, and the composite material matrix is ​​Jinan Changhua Resin Chemical Co., Ltd. Production of T-158 type vinyl resin. The monitoring object is the resin filling process of the typical vacuum assisted resin infusion (VARI) process in LCM.

[0036] The preparation method of th...

Embodiment 3

[0045] The MXene powder in the embodiment of the present invention is that the particle size produced by Forsman Technology (Beijing) Co., Ltd. is 200 mesh Ti 3 C 2 , the carbon nanotubes are multi-walled carbon nanotubes with a diameter of 8-15nm and a length of 50μm produced by Zhongke Nano Times Co., Ltd., the conductive silver paste is produced by Shenzhen Mingbo Electronic Materials Co., Ltd., and the ethanol and acetone are from Galaxy Pharmaceutical Group The reagent company produces, the PU film is produced by Bairong Medical Materials Co., Ltd., the composite material reinforcement is a unidirectional continuous glass fiber cloth with a single layer thickness of 0.4mm produced by Yixing Fuxing Glass Fiber Co., Ltd., and the composite material matrix is ​​Qingdao Jiaxin. WS-105 type epoxy resin produced by Materials Co., Ltd. The monitoring object is the resin filling process of a typical resin transfer molding (RTM) process in LCM.

[0046] The preparation method of...

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Abstract

A kind of sensor and preparation method for monitoring composite material liquid molding process, it is characterized in that, preparation method comprises the following steps: (1) MXene powder is added into deionized water, ultrasonic peeling obtains the monodisperse aqueous solution of MXene sheet; (2) ) Spray the MXene sheet monodisperse aqueous solution on the PU film, and vacuum dry to obtain the MXene matrix film; (3) spray the CNT monodisperse aqueous solution on the MXene matrix film, and vacuum dry to obtain the MXene-CNT composite matrix film; (4 ) Spray the monodisperse aqueous solution of MXene sheets on the MXene-CNT composite matrix film, and dry in vacuum to obtain the MXene-CNT-MXene sandwich structure film; (5) peel the MXene-CNT-MXene sandwich structure film from the PU film, cut Form it into a circle, and set electrodes at both ends of the diameter to obtain an MXene / CNT sensor. The MXene / CNT sensor prepared by the method of the invention can be deployed and controlled at different positions of the composite material preform body with any shape to perform real-time on-line monitoring of the mold filling process of the LCM process.

Description

technical field [0001] The invention belongs to the field of nanocomposite materials, and in particular relates to a sandwich structure MXene / CNT high-sensitivity sensor for monitoring the liquid forming process of composite materials and a preparation method thereof. Background technique [0002] Liquid Composite Molding (LCM) process is suitable for manufacturing large-sized and complex-shaped composite structures, and has the advantages of strong designability and low cost. It is widely used in aerospace, shipbuilding, transportation and other fields. The performance of LCM parts depends to a large extent on the filling process of the matrix resin. Insufficient filling and impregnation will lead to matrix defects of the composite material, resulting in problems such as delamination, warping and poor mechanical properties of the parts. Although the manufacturer of composite materials will provide a "standard" process system, this process system is usually formulated for an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D5/18C01B32/921C01B32/16
CPCC01B32/16C01B32/921G01D5/18
Inventor 张璐卢少微王晓强马克明马承坤王赛
Owner SHENYANG AEROSPACE UNIVERSITY