Preparation method of ultrathin continuous fiber reinforced thermoplastic prepreg

A technology for enhancing thermoplasticity and continuous fibers, applied in the direction of coating, etc., can solve problems such as the difficulty of the molten resin matrix penetrating into the interior of continuous fiber bundles, and achieve good fiber opening effect and uniform distribution

Active Publication Date: 2020-11-03
JIANGSU UNIV
View PDF10 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art, the present invention provides a preparation method of ultra-thin continuous fiber reinforced thermoplastic prepreg, which effectively solves the problem that the molten resin matrix is ​​difficult to penetrate into the continuous fiber bundle

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of ultrathin continuous fiber reinforced thermoplastic prepreg

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0022] Such as figure 1 Shown, a kind of preparation method of ultra-thin continuous fiber reinforced thermoplastic prepreg of the present invention specifically comprises the following steps:

[0023] Step (1), using laser drilling, by controlling the laser frequency 20KHz, laser power 16W, spot diameter Parameters such as the number of impacts 20 times, on the surface of 1050-H14 aluminum sheet 1 with a length and width of 100mm×100mm and a thickness of 1mm, an array of tapered holes with 30 rows×30 columns, a diameter of 0.8mm, and a depth of 1mm is processed. A metal mold 2 with a micro-taper hole array feature is taken, wherein the diameter, number of rows, and number of columns of the array of tapered holes are determined by the degree of fiber opening, and the de...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a preparation method of an ultrathin continuous fiber reinforced thermoplastic prepreg. The preparation method comprises the following steps of processing a metal mold with micro-taper hole array characteristics, duplicating a splitting plate with micro-taper bulge array characteristics, conducting primary splitting on ultrathin fiber cloth, conducting vibrating and powder scattering on matrix resin powder, conducting secondary splitting, conducting primary overturning for homogenizing the powder, conducting secondary overturning for replacing a mold, conducting vacuum heating and melting and carrying out hot-press molding. Array taper holes are machined in the surface of the metal mold, a high-performance thermoplastic PEEK resin thin plate is used for duplicating the splitting plate with the micro-taper bulge array characteristics, full splitting of the ultrathin continuous reinforced fiber cloth is achieved, and the splitting effect is good; and in cooperationwith two times of high-frequency low-amplitude vibration powder spreading of a flow-controllable three-dimensional movable discharge spout and the splitting plate, uniform distribution of the matrixresin powder in the reinforced fiber cloth is achieved, and the problem that it is difficult to make a molten resin matrix go deep into continuous fiber bundles is effectively solved.

Description

technical field [0001] The invention relates to the field of preparation of fiber-reinforced composite materials, in particular to a preparation method of ultra-thin continuous fiber-reinforced thermoplastic resin matrix prepreg. Background technique [0002] In recent years, continuous fiber-reinforced thermoplastic resin matrix prepregs have attracted widespread attention in the fields of automobiles, ships, and rail transit due to their high specific strength, high specific stiffness, and low density. For continuous fiber-reinforced thermoplastic prepregs, especially ultra-thin prepregs, the distribution uniformity of continuous fibers in the resin matrix and the impregnation effect of the resin matrix on the continuous fibers will directly affect the quality of the composite component. Stability of mechanical properties and service safety. [0003] On the one hand, in the whole process of continuous fiber reinforced thermoplastic prepreg preparation, the process link di...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B29B15/10B29C41/16
CPCB29B15/105B29C41/16
Inventor 郭玉琴陆铭段梦思陈龙李富柱徐凡吴雪莲许桢英
Owner JIANGSU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap