Check patentability & draft patents in minutes with Patsnap Eureka AI!

Technology for improving compression performance of composite material laminated board

A composite material layer and pressing board technology, which is applied in the field of composite material laminate preparation, can solve the problems of different resin content and different glue absorption, and achieve the effect of increasing compression performance and expanding the application range

Inactive Publication Date: 2015-11-25
HENGSHEN
View PDF3 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, sometimes the same parts have the same number of layers, but the resin content of the final composite laminate is different due to the different amount of glue absorbed when preparing the composite laminate.

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
  • Technology for improving compression performance of composite material laminated board
  • Technology for improving compression performance of composite material laminated board
  • Technology for improving compression performance of composite material laminated board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 2 , lay 6 prepreg laminates on a flat glass mold of 1200mm×2500mm, the size is 300mm×300mm, after laying, a layer of release cloth is placed on top of the prepreg blank, and three layers of absorbent Adhesive plaster, one layer of non-porous isolation film, one layer of air felt, one layer of vacuum bag, seal the vacuum bag with yellow sealant, the air felt should completely cover the isolation film, the vacuum bag should completely cover the air felt, and the vacuum pump 4b passes through the vacuum joint 3b is connected to the vacuum bag 1b. At this time, turn on the vacuum pump 4b and pump the vacuum. It can be observed through the vacuum gauge 2b that the actual vacuum degree is -0.97MPa. After the laying is completed, the laminate is cured. The thickness of the cured board was tested, and it was found that the thickness of the glue-absorbed laminate was 3.3% thinner than that of the non-absorbed laminate, and the compressive strength increased by 7....

Embodiment 2

[0030] Parts with more complex structures are selected for testing. The selected mold has a larger curvature, and then place the auxiliary materials and the same quantity and specification of the suction cloth in the same order as in Implementation 1, such as image 3 As shown, the vacuum pump 4c is connected to the vacuum bag 1c through the vacuum connector 3c. At this time, turn on the vacuum pump 4c and pump the vacuum. It can be observed through the vacuum gauge 2c that the actual vacuum degree is -0.97MPa. After the laying is completed, the laminate is cured . The thickness of the cured board was tested, and it was found that the thickness of the glue-absorbed laminate was 3.75% thinner than that of the non-absorbed laminate, and the compressive strength increased by 8.3%.

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 discloses a technology for improving the compression performance of a composite material laminated board. The technology comprises the steps that after a prepreg workblank is laid on a glass mold, a demolding cloth, a glass fiber adhesive absorbing cloth, an imperforate isolation film, ventilated felt and a vacuum bag are sequentially placed in place; the vacuum bag is sealed by a sealing adhesive, and the isolation film is completely covered with the ventilated felt which is completely covered with the vacuum bag; the vacuum bag is connected with a vacuum pump through a vacuum connector; the vacuum pump is started for vacuumizing; and finally the laminated board is solidified. On the conditions of neither changing a resin system formula nor increasing the difficulty of a prepreg production technology and a composite material laminated board manufacturing technology, the compression performance of the composite material laminated board is improved, and the material application range is expanded.

Description

technical field [0001] The invention belongs to the technical category of composite material laminated board preparation. Background technique [0002] Fiber-reinforced resin-based composite material is a new type of composite material, which has the advantages of high specific strength, high specific modulus, and corrosion resistance, and is widely used in wind energy, subsea oil fields, sports equipment, rail transit, military, aerospace and other fields . The types of reinforcing fibers are mainly divided into glass fiber, basalt fiber, aramid fiber and carbon fiber. The resin matrix is ​​mainly divided into thermosetting resins and thermoplastic resins. Due to the relatively simple molding process of thermosetting resins, it is the most widely used, mainly including epoxy resins, double horse resins, phenolic resins, vinyl resins and cyanate resins. At present, the processes for preparing fiber-reinforced resin-based composite materials mainly include autoclave process...

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
IPC IPC(8): B29C70/44B29C70/54
CPCB29C70/44B29C70/54
Inventor 郑文建吴小元梁军辉
Owner HENGSHEN
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com