Method and device for improving wettability of broad width presoaking material

A prepreg and wettability technology, which is applied in the processing of textile materials, textiles and papermaking, vibration treatment, etc., can solve the problems of impregnation treatment of wide-width fiber cloth and improvement of wettability of prepreg, etc., to achieve Effect of improving wettability and ensuring quality

Active Publication Date: 2006-02-15
HARBIN INST OF TECH
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  • Summary
  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that in the production process of prepregs, fiber surface modification technology cannot improve the wettability of prepregs; ultrasonic vibration glue treatment technology is not suitable for thermosetting resin systems; ultrasonic forced infiltration narrow band treatment A method and device used to improve the wettability of wide-width prepregs provided by the technology cannot realize the problem of dipping of wide-width fiber cloth

Method used

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  • Method and device for improving wettability of broad width presoaking material

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specific Embodiment approach 1

[0007] Embodiment 1: The method for improving the wettability of wide-width prepregs in this embodiment is accomplished as follows: After the dried fiber cloth 19 is immersed in thermosetting resin, it is dried again and rolled into bundles; The fiber cloth 19 passes on the vibrating plate 14-1 on the combined transducer 14 before drying, the vibrating frequency of the vibrating plate 14-1 is controlled by the ultrasonic power source 15, and the vibrating frequency of the vibrating plate 14-1 is 48 ± 1.5kHz, ultrasonic power of 20-700W, running speed of fiber cloth 19 of 40-120m / h, tension of fiber cloth 19 of 10-300N, width W of fiber cloth 19 of 0.1-1.5m.

specific Embodiment approach 2

[0008] Embodiment 2: The difference between this embodiment and Embodiment 1 is: after the fiber cloth 19 of this embodiment passes on the vibrating plate 14-1 on the combined transducer 14, it is soaked in thermosetting material again before drying. resin. The resin content on the fiber cloth 19 after ultrasonic treatment will decrease correspondingly, which will affect the quality of the fiber cloth 19. Therefore, before drying, the fiber cloth 19 impregnated with thermosetting resin will be impregnated with thermosetting resin again, which can make up for the above defects.

specific Embodiment approach 3

[0009] Specific embodiment three: the differences between this embodiment and specific embodiment one are: the vibration frequency of the vibrating plate 14-1 of this embodiment is 48kHz, the ultrasonic power is 30W, the running speed of the fiber cloth 19 is 60m / h, the fiber The tension of the cloth 19 was 145N, and the width W of the fiber cloth 19 was 1.0 m. Using the above technical parameters, the fiber cloth 19 with a width W of 1.0 m can be effectively ultrasonically treated, thereby improving the quality of the composite material.

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Abstract

A process and apparatus for improving the width prepreg soakage property relates to a process and apparatus for improving the prepreg soakage property. This invention solves the following problems in the prepeg production, using the fiber improved technology can't improve the soakage property of the prepreg; using the ultrasonic vibration technology can't fit for the thermosetting tar; using the ultrasonic soakage narrowband technology can't realize the width fiber soakage disposal. The method of this invention as follows: digging the dried fiber cloth 19 into the thermosetting tar, then going through the compound transformer 14 which is under the control of the ultrasonic power 15, and then drying, rolling and bundling, wherein the width of the fiber cloth 19 W is 0.1-1.5m; the device of this invention as follows: the first drying stove 1 and the rolling roller 10 are mounted at the left of the frame, the second drying stove 9 and the curling machine 11 are mounted at the right of the frame, the upper face of the frame fixes with the compound transformer 14, and the ultrasonic power 15 fixes on the frame. Using this device and the method of this invention can improve the width prepreg soakage property greatly.

Description

Technical field: [0001] The invention relates to a method for improving the wettability of a prepreg and a device used therein, in particular to a method for improving the wettability of a wide-width prepreg and a device used therefor. Background technique: [0002] Whether it is a composite material or its semi-finished product - prepregs have resins that are difficult to completely impregnate between fibers during the production process, and a large amount of resin exists in the form of surface floating glue, which results in an interface in the composite material defects, thereby reducing the quality of the composite material. Therefore, improving the wettability and interfacial bonding between the matrix resin and fibers becomes one of the key factors to fully develop the comprehensive mechanical properties of composite materials. [0003] At present, there have been extensive researches on this at home and abroad, mainly focusing on fiber surface modification technolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06B13/00D06M10/02
Inventor 黄玉东刘丽张志谦宋元军孟令辉刘立洵
Owner HARBIN INST OF TECH
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